基于光子晶体光纤的多波长环形激光器

Multiple-wavelength ring laser based on photonic crystal fiber

研制一种稳定多波长输出的光子晶体光纤环形激光器.以高性能掺铒光子晶体光纤作为增益介质,通过高非线性光子晶体光纤的四波混频效应以及精确控制偏振控制器,有效抑制均匀加宽增益介质掺铒光纤的模式竞争,在室温下实现稳定的多波长激光输出.双波长激光输出峰分别位于1 554.49和1 559.48 nm,其功率波动最大值小于1.1 dB.三波长激光输出峰分别位于1 555.04、1 557.32和1 559.59nm,其功率波动最大值小于1.6 dB,且波长间隔等间距,均为2.26 nm.

In order to realize multi-wavelength laser output, a multi-wavelength ring laser using photonic crystal fiber was presented in the paper. The Er-doped photonic crystal fiber as the gain media achieved high performance. Through the nonlinear effect of high-nonlinear photonic crystal fiber and the tuning of polarization controller, the laser had effectively restrained the mode competition of Er-doped photonic crystal fiber. Eventual- ly, the stable dual-wavelength and triple-wavelength lasers were realized at the room temperature. The peak wave- lengths of dual-wavelength laser were located at 1 554.49 nm and 1 559, 48 nm, and their maximum fluctuation of spectral power was less than 1.1 dB; The peak wavelengths of triple-wavelength laser were located at 1 555.04 nm, 1 557.32 nm and 1 559.59 nm, their maximum fluctuation of spectral power was less than 1.6 dB, and the uniform wavelength interval was 2.26 nm.