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Chen L, Ming J, Zhang Z, Shang J, Yu L, Guan H, Zhang W, Xu Z, Qiu W, Chen Z, Lu H. SnSe-Coated Microfiber Resonator for All-Optical Modulation. NANOMATERIALS 2022; 12:nano12040694. [PMID: 35215022 PMCID: PMC8880113 DOI: 10.3390/nano12040694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 12/10/2022]
Abstract
In this study, a tin monoselenide (SnSe)-based all-optical modulator is firstly demonstrated with high tuning efficiency, broad bandwidth, and fast response time. The SnSe nanoplates are deposited in the microfiber knot resonator (MKR) on MgF2 substrate and change its transmission spectra by the external laser irradiation. The SnSe nanoplates and the microfiber are fabricated using the liquid-phase exfoliation method and the heat-flame taper-drawing method, respectively. Due to the strong absorption and enhanced light–matter interaction of the SnSe nanoplates, the largest transmitted power tunability is approximately 0.29 dB/mW with the response time of less than 2 ms. The broad tuning bandwidth is confirmed by four external pump lights ranging from ultraviolet to near-infrared. The proposed SnSe-coated microfiber resonator holds promising potential for wide application in the fields of all-optical tuning and fiber sensors.
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Affiliation(s)
- Lei Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (L.C.); (J.M.); (J.S.); (L.Y.); (W.Z.); (Z.X.)
| | - Jingyuan Ming
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (L.C.); (J.M.); (J.S.); (L.Y.); (W.Z.); (Z.X.)
| | - Zhishen Zhang
- School of Physics and Optoelectronic Technology, South China University of Technology, Guangzhou 510641, China;
| | - Jumei Shang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (L.C.); (J.M.); (J.S.); (L.Y.); (W.Z.); (Z.X.)
| | - Lingyun Yu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (L.C.); (J.M.); (J.S.); (L.Y.); (W.Z.); (Z.X.)
| | - Heyuan Guan
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (Z.C.); (H.L.)
- Correspondence: (H.G.); (W.Q.)
| | - Weina Zhang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (L.C.); (J.M.); (J.S.); (L.Y.); (W.Z.); (Z.X.)
| | - Zefeng Xu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (L.C.); (J.M.); (J.S.); (L.Y.); (W.Z.); (Z.X.)
| | - Wentao Qiu
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (Z.C.); (H.L.)
- Correspondence: (H.G.); (W.Q.)
| | - Zhe Chen
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (Z.C.); (H.L.)
| | - Huihui Lu
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China; (Z.C.); (H.L.)
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Zhang Y, Zhu W, Fan P, He Y, Zhuo L, Che Z, Li D, Zheng H, Dong L, Tang J, Qiu W, Zhang J, Zhong Y, Yu J, Chen Z. A broadband and low-power light-control-light effect in a fiber-optic nano-optomechanical system. NANOSCALE 2020; 12:9800-9809. [PMID: 32328601 DOI: 10.1039/c9nr10953f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The coupling of the optical and mechanical degrees of freedom using optical force in nano-devices offers a novel mechanism to implement all-optical signal processing. However, the ultra-weak optical force requires a high pump optical power to realize all-optical processing. For such devices, it is still challenging to lower the pump power and simultaneously broaden the bandwidth of the signal light under processing. In this work, a simple and cost-effective optomechanical scheme was demonstrated that was capable of achieving a broadband (208 nm) and micro-Watt (∼624.13 μW) light-control-light effect driven by a relatively weak optical force (∼3 pN). In the scheme, a tapered nanofiber (TNF) was evanescently coupled with a substrate, allowing the pump light guided in the TNF to generate a strong transverse optical force for the light-control-light effect. Additionally, thanks to the low stiffness (5.44 fN nm-1) of the TNF, the light-control-light scheme also provided a simple method to measure the static weak optical force with a minimum detectable optical force down to 380.8 fN. The results establish TNF as a cost-effective scheme to break the limitation of the modulation wavelength bandwidth (MWB) at a low pump power and show that the TNF-optic optomechanical system can be well described as a harmonic oscillator.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Department of Optoelectronic Engineering, Jinan University, Guangzhou, 510632, China.
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