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Research on stability and uniformity of multi-wavelength Brillouin-erbium fiber laser based on FWM

机译：基于FWM的多波长布里渊-光纤激光器的稳定性和均匀性研究

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摘要

In this paper, we experimentally and theoretically investigate the stability and uniformity of multi-wavelength Brillouin-erbium fiber laser based on four-wave mixing (FWM). Multi-wavelength generation is limited by cross-gain saturation between different wavelengths from homogeneous broadening of erbium-doped fiber. Modeling coupled-mode equation for FWM and analyzing the influence of FWM on multi-wavelength generation. 16 orders Brillouin Stokes (BS) waves with a wavelength spacing of 0.084 nm are obtained experimentally within a 3 dB bandwidth by the FWM effect in a 100 m highly nonlinear fiber (HNLF), power distribution of each laser is uniform and peak power fluctuation is less than 1.184 dB within a 10 dB bandwidth, the outputs exhibit good time stability and uniformity. Compared with the same configuration, the laser without HNLF has only 9 orders stable BS waves within 3 dB bandwidth, and high-order Stokes wave shows significant waveform jitter and power fluctuation.
机译：在本文中，我们从实验和理论上研究了基于四波混频（FWM）的多波长布里渊in光纤激光器的稳定性和均匀性。多波长的产生受到掺wavelength光纤均匀增宽的不同波长之间的交叉增益饱和的限制。为FWM建模耦合模型，并分析FWM对多波长产生的影响。在100 m高非线性光纤（HNLF）中，通过FWM效应，在3 dB带宽内通过实验获得了波长间隔为0.084 nm的16阶布里渊斯托克斯（BS）波，每个激光器的功率分布均匀，峰值功率波动为在10 dB带宽内小于1.184 dB时，输出具有良好的时间稳定性和均匀性。与相同配置相比，没有HNLF的激光器在3 dB带宽内只有9个稳定的BS波，高阶斯托克斯波显示出明显的波形抖动和功率波动。

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