Ai Qi, Chen Xiao, Tian Miao, Yan Bin-bin, Zhang Ying, Song Fei-jun, Chen Gen-xiang, Sang Xin-zhu, Wang Yi-quan, Xiao Feng, Alameh Kamal
Appl Opt. 2015 Feb 1;54(4):603-7. doi: 10.1364/AO.54.000603.
Based on a digital micromirror device (DMD) processor as the multi-wavelength narrow-band tunable filter, we demonstrate a multi-port tunable fiber laser through experiments. The key property of this laser is that any lasing wavelength channel from any arbitrary output port can be switched independently over the whole C-band, which is only driven by single DMD chip flexibly. All outputs display an excellent tuning capacity and high consistency in the whole C-band with a 0.02 nm linewidth, 0.055 nm wavelength tuning step, and side-mode suppression ratio greater than 60 dB. Due to the automatic power control and polarization design, the power uniformity of output lasers is less than 0.008 dB and the wavelength fluctuation is below 0.02 nm within 2 h at room temperature.
基于数字微镜器件（DMD）处理器作为多波长窄带可调滤波器，我们通过实验演示了一种多端口可调谐光纤激光器。该激光器的关键特性是，在整个C波段内，任何任意输出端口的任何激射波长通道都可以独立切换，仅由单个DMD芯片灵活驱动。所有输出在整个C波段均显示出出色的调谐能力和高一致性，线宽为0.02nm，波长调谐步长为0.055nm，边模抑制比大于60dB。由于采用了自动功率控制和偏振设计，输出激光器的功率均匀性小于0.008dB，在室温下2小时内波长波动低于0.02nm。
