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Fernández A, Grüner-Nielsen L, Andreana M, Stadler M, Kirchberger S, Sturtzel C, Distel M, Zhu L, Kautek W, Leitgeb R, Baltuska A, Jespersen K, Verhoef A. Optimizing pulse compressibility in completely all-fibered Ytterbium chirped pulse amplifiers for in vivo two photon laser scanning microscopy. Biomed Opt Express 2017; 8:3526-3537. [PMID: 28856032 PMCID: PMC5560822 DOI: 10.1364/boe.8.003526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/20/2017] [Accepted: 06/22/2017] [Indexed: 06/07/2023]
Abstract
A simple and completely all-fiber Yb chirped pulse amplifier that uses a dispersion matched fiber stretcher and a spliced-on hollow core photonic bandgap fiber compressor is applied in nonlinear optical microscopy. This stretching-compression approach improves compressibility and helps to maximize the fluorescence signal in two-photon laser scanning microscopy as compared with approaches that use standard single mode fibers as stretcher. We also show that in femtosecond all-fiber systems, compensation of higher order dispersion terms is relevant even for pulses with relatively narrow bandwidths for applications relying on nonlinear optical effects. The completely all-fiber system was applied to image green fluorescent beads, a stained lily-of-the-valley root and rat-tail tendon. We also demonstrated in vivo imaging in zebrafish larvae, where we simultaneously measure second harmonic and fluorescence from two-photon excited red-fluorescent protein. Since the pulses are compressed in a fiber, this source is especially suited for upgrading existing laser scanning (confocal) microscopes with multiphoton imaging capabilities in space restricted settings or for incorporation in endoscope-based microscopy.
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Affiliation(s)
- A Fernández
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medizinische Universität Wien, Währinger Gürtel 18-20/4L, 1090 Vienna, Austria
| | - L Grüner-Nielsen
- Danish Optical Fiber Innovation, Åvendingen 22A, 2700 Brønshøj, Denmark
| | - M Andreana
- Center for Medical Physics and Biomedical Engineering, Medizinische Universität Wien, Währinger Gürtel 18-20/4L, 1090 Vienna, Austria
| | - M Stadler
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - S Kirchberger
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - C Sturtzel
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - M Distel
- St. Anna Kinderkrebsforschung e.V., Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - L Zhu
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
- Department of Physical Chemistry, Universität Wien, Währinger Strasse 42, 1090 Vienna, Austria
| | - W Kautek
- Department of Physical Chemistry, Universität Wien, Währinger Strasse 42, 1090 Vienna, Austria
| | - R Leitgeb
- Center for Medical Physics and Biomedical Engineering, Medizinische Universität Wien, Währinger Gürtel 18-20/4L, 1090 Vienna, Austria
| | - A Baltuska
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
| | - K Jespersen
- NKT Photonics A/S, Blokken 84, 3460 Birkerød, Denmark
| | - A Verhoef
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medizinische Universität Wien, Währinger Gürtel 18-20/4L, 1090 Vienna, Austria
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Verhoef AJ, Zhu L, Israelsen SM, Grüner-Nielsen L, Unterhuber A, Kautek W, Rottwitt K, Baltuška A, Fernández A. Sub-100 fs pulses from an all-polarization maintaining Yb-fiber oscillator with an anomalous dispersion higher-order-mode fiber. Opt Express 2015; 23:26139-26145. [PMID: 26480128 DOI: 10.1364/oe.23.026139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present an Yb-fiber oscillator with an all-polarization-maintaining cavity with a higher-order-mode fiber for dispersion compensation. The polarization maintaining higher order mode fiber introduces not only negative second order dispersion but also negative third order dispersion in the cavity, in contrast to dispersion compensation schemes used in previous demonstrations of all-polarization maintaining Yb-fiber oscillators. The performance of the saturable absorber mirror modelocked oscillator, that employs a free space scheme for coupling onto the saturable absorber mirror and output coupling, was investigated for different settings of the intracavity dispersion. When the cavity is operated with close to zero net dispersion, highly stable 0.5-nJ pulses externally compressed to sub-100-fs are generated. These are to our knowledge the shortest pulses generated from an all-polarization-maintaining Yb-fiber oscillator. The spectral phase of the output pulses is well behaved and can be compensated such that wing-free Fourier transform limited pulses can be obtained. Further reduction of the net intracavity third order dispersion will allow generating broader output spectra and consequently shorter pulses, without sacrificing pulse fidelity.
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Tenne R, Eherman K, Mahalu D, Peisach M, Kautek W, Wold A, Matson R, Waldeck DH. The WSe2/Tungsten-Oxide Interface: Structure and Photoluminescence. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19930970510] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Soares DM, Kautek W, Fruböse C, Doblhofer K. The electrochemical quartz-microbalance in media of changing viscoelastic properties, and the design and characterization of a suitable driver electronics. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19940980215] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dieluweit S, Pum D, Sleytr U, Kautek W. Monodisperse gold nanoparticles formed on bacterial crystalline surface layers (S-layers) by electroless deposition. Materials Science and Engineering: C 2005. [DOI: 10.1016/j.msec.2005.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Li G, Koβmehl G, Hunnius W, Zhu H, Kautek W, Plieth W, Melsheimer J, Doblhofer K. Reactive groups on polymer coated electrodes: 10. Electrogenerated conducting polyalkylthiophenes bearing activated ester groups. POLYMER 2000. [DOI: 10.1016/s0032-3861(99)00201-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kautek W, Geu� M, Sahre M, Zhao P, Mirwald S. Multi-method Analysis of the Metal/Electrolyte Interface: Scanning Force Microscopy (SFM), Quartz Microbalance Measurements (QMB), Fourier Transform Infrared Spectroscopy (FTIR) and Grazing Incidence X-ray Diffractometry (GIXD) at a Polycrystalline Copper Electrode. SURF INTERFACE ANAL 1997. [DOI: 10.1002/(sici)1096-9918(199706)25:7/8<548::aid-sia269>3.0.co;2-b] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Smestad G, Ennaoui A, Fiechter S, Tributsch H, Hofmann W, Birkholz M, Kautek W. Photoactive thin film semiconducting iron pyrite prepared by sulfurization of iron oxides. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0165-1633(90)90001-h] [Citation(s) in RCA: 120] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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