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首页> 外文期刊>Optics Letters >Fiber parametric oscillator for the 2 (mu)m wavelength range based on narrowband optical parametric amplification
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Fiber parametric oscillator for the 2 (mu)m wavelength range based on narrowband optical parametric amplification

机译：基于窄带光学参量放大的2μm波长范围的光纤参量振荡器

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摘要

We describe a widely tunable synchronously pumped coherent source based on the process of narrowband parametric amplification in a dispersion-shifted fiber. Using an experimental fiber with a zero-dispersion wavelength of 1590 nm and pump wavelengths of 1530 to 1570 nm yields oscillations at 1970 to 2140 nm--the longest reported wavelength for a fiber parametric oscillator. The long-wavelength oscillations are accompanied by simultaneous short-wavelength oscillations at 1200 to 1290 nm. The parametric gain is coupled to stimulated Raman scattering. For parametric oscillations close to the Raman gain peak, the two gain processes must be discriminated from each other. We devised two configurations that achieve this discrimination: one is based on the exploitation of the difference in group delay between the wavelengths where Raman and parametric gain peak, and the other uses intracavity polarization tuning.
机译：我们描述了一种基于色散位移光纤中窄带参数放大过程的可广泛调谐的同步泵浦相干源。使用零色散波长为1590 nm，泵浦波长为1530至1570 nm的实验光纤会在1970至2140 nm产生振荡，这是光纤参量振荡器报告的最长波长。长波长振荡伴随着在1200至1290nm处的同时短波长振荡。参数增益耦合到受激拉曼散射。对于接近拉曼增益峰值的参数振荡，必须将两个增益过程区分开。我们设计了两种配置来实现这种区分：一种基于对拉曼光谱和参数增益达到峰值的波长之间的群时延差异的利用，另一种基于腔内偏振调谐。

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