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Efficient stimulated Raman scattering in hybrid liquid-silica fibers for wavelength conversion (Orale)

Abstract : Wavelength Raman converters have been developed for years to provide an elegant solution to easily shift the wavelength of existing lasers. In the pulse regime, due to relatively low Raman gains, these converters are usually limited to high-energy pulses, typically a few J or a few mJ in the nanosecond or picosecond regime. In order to build efficient Raman converters with lower energy pulses, we have developed a new class of fiber wavelength shifters based on Stimulated Raman Scattering in the liquid filling the hollow core of photonic bandgap fibers or Kagome fibers. The liquid choice, the design of the photonic crystal microstructure, the fiber length and its diameter give us enough degrees of freedom to realize efficient and versatile shifters, each being optimized for a specific wavelength shift. Connecting such a fiber device to a fixed wavelength laser allows delivering a new wavelength. With the same laser, another wavelength can be obtained by connecting another shifter. Using microlasers delivering 532 nm sub-nanosecond pulses of about 1 μJ, we already built a full series of shifters to reach any wavelength among: 556 nm; 561 nm; 582 nm; 595 nm; 612 nm; 630 nm; 650 nm; 667 nm; 772 nm. Hereafter, we detail how we design and optimize these new devices. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Contributor : Gilles Pauliat <>
Submitted on : Monday, January 9, 2017 - 11:04:15 AM
Last modification on : Wednesday, October 14, 2020 - 3:41:53 AM

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Sylvie Lebrun, Minh Châu Phan Huy, Philippe Delaye, Gilles Pauliat. Efficient stimulated Raman scattering in hybrid liquid-silica fibers for wavelength conversion (Orale). SPIE/COS Photonics Asia, Optical Design and Testing VII, Oct 2016, Beijing, China. pp.1002104, ⟨10.1117/12.2245431⟩. ⟨hal-01429818⟩

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