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制成了工作波长为1.65μm的光纤受激拉曼散射放大器。研制了波长1.53μm的双级磷酸盐光纤受激拉曼散射转换器抽运该放大器,制成信号增益带最大值位于1.6-1.7μm的放大装置。受激拉曼散射放大器的基质是芯中GeO2分子含量25％的光纤。不同输入信号功率时的增益系数为20-25dB。计算表明,使用标准通信光纤(GeO含量低的)可通过降低光纤接合处的光学损耗提高该系统的增益系数。
The working wavelength of 1.65μm fiber-made stimulated Raman scattering amplifier was made. A two-stage phosphate fiber stimulated Raman scattering converter with a wavelength of 1.53μm was developed to pump the amplifier to produce an amplifier with a maximum signal gain band of 1.6-1.7μm. Stimulated Raman scattering amplifier matrix is the core GeO2 molecular weight 25% of the fiber. The gain factor for different input signal powers is 20-25dB. Calculations show that using standard communication fibers (low GeO content) increases the system’s gain factor by reducing the optical loss at the fiber splice.