Guo Jin-Jin, Li Ming, Deng Ye, Huang Ningbo, Liu Jianguo, Zhu Ninghua
Opt Express. 2014 Feb 24;22(4):4290-300. doi: 10.1364/OE.22.004290.
We first propose a multichannel optical filter with an ultra-narrow 3-dB bandwidth based on sampled Brillouin dynamic gratings (SBDGs). The multichannel optical filter is generated when an optical pulse interfaces with an optical pulse train based on an ordinary stimulated Brillouin scattering (SBS) process in a birefringent optical fiber. Multichannel optical filter based on SBDG is generated with a 3-dB bandwidth from 12.5 MHz to 1 GHz. In addition, a linearly chirped SBDG is proposed to generate multichannel dispersion compensator with a 3-dB bandwidth of 300 MHz and an extremely high dispersion value of 432 ns/nm. The proposed multichannel optical filters have important potential applications in the optical filtering, multichannel dispersion compensation and optical signal processing.
我们首先基于采样布里渊动态光栅（SBDG）提出了一种具有超窄3分贝带宽的多通道光学滤波器。当光脉冲与基于双折射光纤中普通受激布里渊散射（SBS）过程的光脉冲串相互作用时，会产生多通道光学滤波器。基于SBDG的多通道光学滤波器产生的3分贝带宽为12.5兆赫至1吉赫。此外，还提出了一种线性啁啾SBDG，以产生3分贝带宽为300兆赫且色散值极高达432纳秒/纳米的多通道色散补偿器。所提出的多通道光学滤波器在光学滤波、多通道色散补偿和光信号处理方面具有重要的潜在应用。
