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利用法布里珀罗腔的激光二极管作为调制器件 ,实现环形腔光纤激光器的主动锁模。并利用法布里珀罗腔的激光二极管的多纵模特性 ,把激光二极管当作一梳状滤波器 ,通过偏振控制器来调整入射到激光二极管内光的偏振态 ,同时均衡腔内增益 ,得到波长大范围可调谐的锁模激光 ,其脉冲宽度约为 4 8ps,脉冲重复速率 2GHz
The use of Fabry-Perot cavity laser diode as the modulation device, the ring cavity fiber laser active clamping. By using the multi-longitudinal mode characteristics of the Fabry-Perot cavity laser diode, the laser diode is treated as a comb filter. The polarization controller adjusts the polarization state of light incident on the laser diode and balances the cavity gain, Get a wide range of wavelength tunable laser mode, the pulse width of about 48ps, pulse repetition rate of 2GHz