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Nie M, Musgrave J, Jia K, Bartos J, Zhu S, Xie Z, Huang SW. Turnkey photonic flywheel in a microresonator-filtered laser. Nat Commun 2024; 15:55. [PMID: 38168081 PMCID: PMC10761980 DOI: 10.1038/s41467-023-44314-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
Dissipative Kerr soliton (DKS) microcomb has emerged as an enabling technology that revolutionizes a wide range of applications in both basic science and technological innovation. Reliable turnkey operation with sub-optical-cycle and sub-femtosecond timing jitter is key to the success of many intriguing microcomb applications at the intersection of ultrafast optics and microwave electronics. Here we propose an approach and demonstrate the first turnkey Brillouin-DKS frequency comb to the best of our knowledge. Our microresonator-filtered laser design offers essential benefits, including phase insensitivity, self-healing capability, deterministic selection of the DKS state, and access to the ultralow noise comb state. The demonstrated turnkey Brillouin-DKS frequency comb achieves a fundamental comb linewidth of 100 mHz and DKS timing jitter of 1 femtosecond for averaging times up to 56 μs. The approach is universal and generalizable to various device platforms for user-friendly and field-deployable comb devices.
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Affiliation(s)
- Mingming Nie
- Department of Electrical, Computer and Energy Engineering, University of Colorado Boulder, Boulder, Colorado, 80309, USA.
| | - Jonathan Musgrave
- Department of Electrical, Computer and Energy Engineering, University of Colorado Boulder, Boulder, Colorado, 80309, USA
| | - Kunpeng Jia
- National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, College of Engineering and Applied Sciences, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China.
| | - Jan Bartos
- Department of Electrical, Computer and Energy Engineering, University of Colorado Boulder, Boulder, Colorado, 80309, USA
| | - Shining Zhu
- National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, College of Engineering and Applied Sciences, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China
| | - Zhenda Xie
- National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, College of Engineering and Applied Sciences, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China.
| | - Shu-Wei Huang
- Department of Electrical, Computer and Energy Engineering, University of Colorado Boulder, Boulder, Colorado, 80309, USA.
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2
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Tan M, Xu X, Wu J, Morandotti R, Mitchell A, Moss DJ. RF and microwave photonic temporal signal processing with Kerr micro-combs. ADVANCES IN PHYSICS: X 2021. [DOI: 10.1080/23746149.2020.1838946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Mengxi Tan
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, Australia
| | - Xingyuan Xu
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, Australia
| | - Jiayang Wu
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, Australia
| | - Roberto Morandotti
- INRS-Énergie, Matériaux et Télécommunications, Varennes, Quebec J3X-1S2, Canada
| | - Arnan Mitchell
- School of Engineering, RMIT University, Melbourne, Australia
| | - David J. Moss
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, Australia
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3
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Garrisi F, Sabattoli FA, Sam S, Barone A, Massara MP, Pirzio F, Morichetti F, Melloni A, Liscidini M, Galli M, Bajoni D. Electrically driven source of time-energy entangled photons based on a self-pumped silicon microring resonator. OPTICS LETTERS 2020; 45:2768-2771. [PMID: 32412462 DOI: 10.1364/ol.389407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Time-energy entangled photon pairs are fundamental resources for quantum communication protocols since they are robust against environmental fluctuations in optical fiber networks. Pair sources based on spontaneous four-wave mixing in silicon microring resonators usually employ expensive external tunable lasers to compensate for ambient fluctuations; adopting self-pumped configurations, instead, lifts the need for such external source. Here we demonstrate the emission of time-energy entangled photon pairs at telecom wavelengths from a silicon self-pumped ring, obtaining a Franson interference fringe with 93.9%±0.9% visibility.
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Xu X, Tan M, Wu J, Chu ST, Little BE, Morandotti R, Nguyen T, Mitchell A, Moss DJ. Kerr Micro-combs for Radio Frequency Photonics -INVITED. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202023801004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We review applications of Kerr micro-combs in RF photonic systems including fractional differentiators, Hilbert Transformers and many other functions.
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5
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Battery-operated integrated frequency comb generator. Nature 2018; 562:401-405. [PMID: 30297798 DOI: 10.1038/s41586-018-0598-9] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 08/08/2018] [Indexed: 11/08/2022]
Abstract
Optical frequency combs are broadband sources that offer mutually coherent, equidistant spectral lines with unprecedented precision in frequency and timing for an array of applications1. Frequency combs generated in microresonators through the Kerr nonlinearity require a single-frequency pump laser and have the potential to provide highly compact, scalable and power-efficient devices2,3. Here we demonstrate a device-a laser-integrated Kerr frequency comb generator-that fulfils this potential through use of extremely low-loss silicon nitride waveguides that form both the microresonator and an integrated laser cavity. Our device generates low-noise soliton-mode-locked combs with a repetition rate of 194 gigahertz at wavelengths near 1,550 nanometres using only 98 milliwatts of electrical pump power. The dual-cavity configuration that we use combines the laser and microresonator, demonstrating the flexibility afforded by close integration of these components, and together with the ultra low power consumption should enable production of highly portable and robust frequency and timing references, sensors and signal sources. This chip-based integration of microresonators and lasers should also provide tools with which to investigate the dynamics of comb and soliton generation.
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Caspani L, Xiong C, Eggleton BJ, Bajoni D, Liscidini M, Galli M, Morandotti R, Moss DJ. Integrated sources of photon quantum states based on nonlinear optics. LIGHT, SCIENCE & APPLICATIONS 2017; 6:e17100. [PMID: 30167217 PMCID: PMC6062040 DOI: 10.1038/lsa.2017.100] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 05/28/2017] [Accepted: 06/02/2017] [Indexed: 05/21/2023]
Abstract
The ability to generate complex optical photon states involving entanglement between multiple optical modes is not only critical to advancing our understanding of quantum mechanics but will play a key role in generating many applications in quantum technologies. These include quantum communications, computation, imaging, microscopy and many other novel technologies that are constantly being proposed. However, approaches to generating parallel multiple, customisable bi- and multi-entangled quantum bits (qubits) on a chip are still in the early stages of development. Here, we review recent advances in the realisation of integrated sources of photonic quantum states, focusing on approaches based on nonlinear optics that are compatible with contemporary optical fibre telecommunications and quantum memory platforms as well as with chip-scale semiconductor technology. These new and exciting platforms hold the promise of compact, low-cost, scalable and practical implementations of sources for the generation and manipulation of complex quantum optical states on a chip, which will play a major role in bringing quantum technologies out of the laboratory and into the real world.
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Affiliation(s)
- Lucia Caspani
- Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow G1 1RD, UK
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Chunle Xiong
- Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, NSW 2006, Australia
| | - Benjamin J Eggleton
- Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, NSW 2006, Australia
| | - Daniele Bajoni
- Dipartimento di Ingegneria Industriale e dell’Informazione, Università di Pavia, via Ferrata 1, 27100, Pavia, Italy
| | - Marco Liscidini
- Dipartimento di Fisica, Università di Pavia, via Bassi 6, 27100 Pavia, Italy
| | - Matteo Galli
- Dipartimento di Fisica, Università di Pavia, via Bassi 6, 27100 Pavia, Italy
| | - Roberto Morandotti
- INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia
| | - David J Moss
- Center for Microphotonics, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australia
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Di Lauro L, Li J, Moss DJ, Morandotti R, Chu ST, Peccianti M, Pasquazi A. Parametric control of thermal self-pulsation in micro-cavities. OPTICS LETTERS 2017; 42:3407-3410. [PMID: 28957049 DOI: 10.1364/ol.42.003407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 07/28/2017] [Indexed: 06/07/2023]
Abstract
We propose a scheme for bifurcation control in micro-cavities based on the interplay between the ultrafast Kerr effect and a slow nonlinearity, such as thermo-optical, free-carriers-induced, or opto-mechanical one. We demonstrate that Hopf bifurcations can be efficiently controlled with a low energy signal via four-wave mixing. Our results show that new strategies are possible for designing efficient micro-cavity-based oscillators and sensors. Moreover, they provide new understanding of the effect of coherent wave mixing in the thermal stability regions of optical micro-cavities, fundamental for micro-resonator-based applications in communications, sensing, and metrology, including optical micro-combs.
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Roztocki P, Kues M, Reimer C, Wetzel B, Sciara S, Zhang Y, Cino A, Little BE, Chu ST, Moss DJ, Morandotti R. Practical system for the generation of pulsed quantum frequency combs. OPTICS EXPRESS 2017; 25:18940-18949. [PMID: 29041085 DOI: 10.1364/oe.25.018940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
The on-chip generation of large and complex optical quantum states will enable low-cost and accessible advances for quantum technologies, such as secure communications and quantum computation. Integrated frequency combs are on-chip light sources with a broad spectrum of evenly-spaced frequency modes, commonly generated by four-wave mixing in optically-excited nonlinear micro-cavities, whose recent use for quantum state generation has provided a solution for scalable and multi-mode quantum light sources. Pulsed quantum frequency combs are of particular interest, since they allow the generation of single-frequency-mode photons, required for scaling state complexity towards, e.g., multi-photon states, and for quantum information applications. However, generation schemes for such pulsed combs have, to date, relied on micro-cavity excitation via lasers external to the sources, being neither versatile nor power-efficient, and impractical for scalable realizations of quantum technologies. Here, we introduce an actively-modulated, nested-cavity configuration that exploits the resonance pass-band characteristic of the micro-cavity to enable a mode-locked and energy-efficient excitation. We demonstrate that the scheme allows the generation of high-purity photons at large coincidence-to-accidental ratios (CAR). Furthermore, by increasing the repetition rate of the excitation field via harmonic mode-locking (i.e. driving the cavity modulation at harmonics of the fundamental repetition rate), we managed to increase the pair production rates (i.e. source efficiency), while maintaining a high CAR and photon purity. Our approach represents a significant step towards the realization of fully on-chip, stable, and versatile sources of pulsed quantum frequency combs, crucial for the development of accessible quantum technologies.
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9
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Liu L, Zhang X, Xu T, Dai Z, Dai S, Liu T. Simple and seamless broadband optical frequency comb generation using an InAs/InP quantum dot laser. OPTICS LETTERS 2017; 42:1173-1176. [PMID: 28295076 DOI: 10.1364/ol.42.001173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A simple and seamless broadband optical frequency comb (OFC) generator is proposed and experimentally demonstrated using a Fabry-Perot quantum dot mode-locked laser combined with a dual-driven LiNbO3 Mach-Zehnder modulator driven by a low-power radio frequency (RF) signal. It is experimentally demonstrated that the 10-dB seamless bandwidth of the OFC is 8.2 nm (1.02 THz), which has 62 and 40 comb lines for frequency intervals of 16.56 GHz and 24.84 GHz, respectively. The single-sideband phase noise is as low as -112 and -108 dBc/Hz at an offset of 10 kHz, respectively, for the photodetector-converted 16.56 and 24.84 GHz frequency carriers. Correspondingly, the RF linewidths of the 16.56 GHz and 24.84 GHz carriers are about 251 Hz-263 Hz, respectively. Using a QD laser, an ultra-low phase noise and quasi-tunable broadband OFC generator is obtained easily.
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10
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Wang W, Chu ST, Little BE, Pasquazi A, Wang Y, Wang L, Zhang W, Wang L, Hu X, Wang G, Hu H, Su Y, Li F, Liu Y, Zhao W. Dual-pump Kerr Micro-cavity Optical Frequency Comb with varying FSR spacing. Sci Rep 2016; 6:28501. [PMID: 27338250 PMCID: PMC4919787 DOI: 10.1038/srep28501] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 06/02/2016] [Indexed: 11/09/2022] Open
Abstract
In this paper, we demonstrate a novel dual-pump approach to generate robust optical frequency comb with varying free spectral range (FSR) spacing in a CMOS-compatible high-Q micro-ring resonator (MRR). The frequency spacing of the comb can be tuned by an integer number FSR of the MRR freely in our dual-pump scheme. The dual pumps are self-oscillated in the laser cavity loop and their wavelengths can be tuned flexibly by programming the tunable filter embedded in the cavity. By tuning the pump wavelength, broadband OFC with the bandwidth of >180 nm and the frequency-spacing varying from 6 to 46-fold FSRs is realized at a low pump power. This approach could find potential and practical applications in many areas, such as optical metrology, optical communication, and signal processing systems, for its excellent flexibility and robustness.
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Affiliation(s)
- Weiqiang Wang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,China-UK Joint Research Center on Micro/Nano photonics, XIOPM of CAS, Xi'an 710119, China
| | - Sai T Chu
- Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
| | - Brent E Little
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China
| | - Alessia Pasquazi
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, UK
| | - Yishan Wang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China
| | - Leiran Wang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,China-UK Joint Research Center on Micro/Nano photonics, XIOPM of CAS, Xi'an 710119, China
| | - Wenfu Zhang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,China-UK Joint Research Center on Micro/Nano photonics, XIOPM of CAS, Xi'an 710119, China
| | - Lei Wang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,China-UK Joint Research Center on Micro/Nano photonics, XIOPM of CAS, Xi'an 710119, China
| | - Xiaohong Hu
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoxi Wang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,China-UK Joint Research Center on Micro/Nano photonics, XIOPM of CAS, Xi'an 710119, China
| | - Hui Hu
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yulong Su
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feitao Li
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanshan Liu
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China
| | - Wei Zhao
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China
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Jin X, Dong Y, Wang K. Selective excitation of axial modes in a high-Q microcylindrical resonator for controlled and robust coupling. APPLIED OPTICS 2015; 54:8100-8107. [PMID: 26406511 DOI: 10.1364/ao.54.008100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We investigate selective excitation of localized axial modes in a high-Q microcylindrical resonator experimentally, numerically, and theoretically. The resonator is fabricated using a standard fusion splicer, and the characteristic resonance spectra are acquired by using a tapered fiber coupled at different positions along the microcylinder. The spatial and spectral mode properties are analyzed with our numerical and theoretical model, which are in good agreement with the experimental results. Moreover, controlled and robust coupling is experimentally demonstrated by vertically moving the resonator while keeping it in contact with the tapered fiber. Our microcylindrical resonator combines clean and nearly equidistant spectra, a high quality factor up to 3.1×10(7), a large mode volume, and a more favorable frequency spacing of ∼3.91 GHz, offering unique potential in sensors, microlasers, optical filters, group delay lines, and especially some applied fields that require tuning.
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12
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Reimer C, Kues M, Caspani L, Wetzel B, Roztocki P, Clerici M, Jestin Y, Ferrera M, Peccianti M, Pasquazi A, Little BE, Chu ST, Moss DJ, Morandotti R. Cross-polarized photon-pair generation and bi-chromatically pumped optical parametric oscillation on a chip. Nat Commun 2015; 6:8236. [PMID: 26364999 PMCID: PMC4647848 DOI: 10.1038/ncomms9236] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 07/29/2015] [Indexed: 11/14/2022] Open
Abstract
Nonlinear optical processes are one of the most important tools in modern optics with a broad spectrum of applications in, for example, frequency conversion, spectroscopy, signal processing and quantum optics. For practical and ultimately widespread implementation, on-chip devices compatible with electronic integrated circuit technology offer great advantages in terms of low cost, small footprint, high performance and low energy consumption. While many on-chip key components have been realized, to date polarization has not been fully exploited as a degree of freedom for integrated nonlinear devices. In particular, frequency conversion based on orthogonally polarized beams has not yet been demonstrated on chip. Here we show frequency mixing between orthogonal polarization modes in a compact integrated microring resonator and demonstrate a bi-chromatically pumped optical parametric oscillator. Operating the device above and below threshold, we directly generate orthogonally polarized beams, as well as photon pairs, respectively, that can find applications, for example, in optical communication and quantum optics.
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Affiliation(s)
- Christian Reimer
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
| | - Michael Kues
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
| | - Lucia Caspani
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Benjamin Wetzel
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, UK
| | - Piotr Roztocki
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
| | - Matteo Clerici
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Yoann Jestin
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
| | - Marcello Ferrera
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Marco Peccianti
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, UK
| | - Alessia Pasquazi
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, UK
| | - Brent E. Little
- Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China
| | - Sai T. Chu
- Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China
| | - David J. Moss
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Roberto Morandotti
- Institut National de la Recherche Scientifique — Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
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13
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Nguyen TG, Shoeiby M, Chu ST, Little BE, Morandotti R, Mitchell A, Moss DJ. Integrated frequency comb source based Hilbert transformer for wideband microwave photonic phase analysis. OPTICS EXPRESS 2015; 23:22087-22097. [PMID: 26368182 DOI: 10.1364/oe.23.022087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate a photonic RF Hilbert transformer for broadband microwave in-phase and quadrature-phase generation based on an integrated frequency optical comb, generated using a nonlinear microring resonator based on a CMOS compatible, high-index contrast, doped-silica glass platform. The high quality and large frequency spacing of the comb enables filters with up to 20 taps, allowing us to demonstrate a quadrature filter with more than a 5-octave (3 dB) bandwidth and an almost uniform phase response.
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14
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Stefan L, Bernard M, Guider R, Pucker G, Pavesi L, Ghulinyan M. Ultra-high-Q thin-silicon nitride strip-loaded ring resonators. OPTICS LETTERS 2015; 40:3316-3319. [PMID: 26176458 DOI: 10.1364/ol.40.003316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on the design, fabrication, and characterization of thin Si3N4 ultra-high-quality (UHQ) factor ring resonators monolithically integrated on a silicon chip. The devices are based on a strip-loaded configuration and operate at both near-infrared (NIR) and third-telecom wavelengths. This approach allows us to use a guiding Si3N4 core that is one order of magnitude thinner than what has been reported in the past for obtaining similar device performances. Our strip-loaded devices benefit from the absence of physically etched lateral boundaries to show minute light scattering and, therefore, reducing significantly scattering-related losses. Consequently, UHQs of 3.7×10(6) in the NIR and high-quality factors of up to 9×10(5) in the C-band were measured for the guiding material thickness of 80 nm and 115 nm, respectively. These first results are subject to further improvements that may allow employing strip-loaded resonators in nonlinear frequency conversion or quantum computing schemes within the desired spectral range provided by the material transparency.
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15
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Phase steps and resonator detuning measurements in microresonator frequency combs. Nat Commun 2015; 6:5668. [PMID: 25565467 DOI: 10.1038/ncomms6668] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 10/27/2014] [Indexed: 11/08/2022] Open
Abstract
Experiments and theoretical modelling yielded significant progress toward understanding of Kerr-effect induced optical frequency comb generation in microresonators. However, the simultaneous Kerr-mediated interaction of hundreds or thousands of optical comb frequencies with the same number of resonator modes leads to complicated nonlinear dynamics that are far from fully understood. An important prerequisite for modelling the comb formation process is the knowledge of phase and amplitude of the comb modes as well as the detuning from their respective microresonator modes. Here, we present comprehensive measurements that fully characterize optical microcomb states. We introduce a way of measuring resonator dispersion and detuning of comb modes in a hot resonator while generating an optical frequency comb. The presented phase measurements show unpredicted comb states with discrete π and π/2 steps in the comb phases that are not observed in conventional optical frequency combs.
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Ferrera M, Reimer C, Pasquazi A, Peccianti M, Clerici M, Caspani L, Chu ST, Little BE, Morandotti R, Moss DJ. CMOS compatible integrated all-optical radio frequency spectrum analyzer. OPTICS EXPRESS 2014; 22:21488-21498. [PMID: 25321527 DOI: 10.1364/oe.22.021488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report an integrated all-optical radio frequency spectrum analyzer based on a ~4 cm long doped silica glass waveguide, with a bandwidth greater than 2.5 THz. We use this device to characterize the intensity power spectrum of ultrahigh repetition rate mode-locked lasers at repetition rates up to 400 GHz, and observe dynamic noise related behavior not observable with other techniques.
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Reimer C, Caspani L, Clerici M, Ferrera M, Kues M, Peccianti M, Pasquazi A, Razzari L, Little BE, Chu ST, Moss DJ, Morandotti R. Integrated frequency comb source of heralded single photons. OPTICS EXPRESS 2014; 22:6535-6546. [PMID: 24664002 DOI: 10.1364/oe.22.006535] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report an integrated photon pair source based on a CMOS-compatible microring resonator that generates multiple, simultaneous, and independent photon pairs at different wavelengths in a frequency comb compatible with fiber communication wavelength division multiplexing channels (200 GHz channel separation) and with a linewidth that is compatible with quantum memories (110 MHz). It operates in a self-locked pump configuration, avoiding the need for active stabilization, making it extremely robust even at very low power levels.
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Liang W, Eliyahu D, Matsko AB, Ilchenko VS, Seidel D, Maleki L. Spectrally pure RF photonic source based on a resonant optical hyper-parametric oscillator. ACTA ACUST UNITED AC 2014. [DOI: 10.1117/12.2044826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Johnson AR, Okawachi Y, Lamont MRE, Levy JS, Lipson M, Gaeta AL. Microresonator-based comb generation without an external laser source. OPTICS EXPRESS 2014; 22:1394-1401. [PMID: 24515147 DOI: 10.1364/oe.22.001394] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrate a fiber-microresonator dual-cavity architecture with which we generate 880 nm of comb bandwidth without the need for a continuous-wave pump laser. Comb generation with this pumping scheme is greatly simplified as compared to pumping with a single frequency laser, and the generated combs are inherently robust due to the intrinsic feedback mechanism. Temporal and radio frequency (RF) characterization show a regime of steady comb formation that operates with reduced RF amplitude noise. The dual-cavity design is capable of being integrated on-chip and offers the potential of a turn-key broadband multiple wavelength source.
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