报道了一种新型环形腔可调谐多波长光纤激光器，腔内以半导体光放大器为增益介质，利用高双折射光纤构成的高双折射环形镜的滤波特性，在室温下，获得了基本符合ITU－T标准100GHz的17个波长以上的稳定多波长输出．各信道峰值功率差小于6dB，线宽小于0．102nm，信噪比大于25dB．通过调节高双折射环形镜内的偏振控制器状态实现了这一组波长整体在50GHz范围内连续可调谐．并利用实验方法，对该光纤激光器应用于掺铒光纤放大器对多信道放大性能测试的可行性进行了初步探讨．

A novel continuously tunable multi-wavelength fiber ring laser is constructed by using semiconductor optical amplifier (SOA) as the gain medium. A Hi-Bi fiber loop mirror (Hi-Bi FLM) is inserted into the cavity as filter. More than 17 stable wavelengths with line-width less than 0.102 nm and more than 25 dB SNR spacing on ITU-grid (100 GHz) are obtained. The output peak power variation of each wavelength is less than 6 dB. These 17 wavelengths can be continuously tuned together within 50 GHz by proper control of the polarization controller of Hi-Bi FLM. The feasibility of using this multiwavelength fiber ring laser in testing the characteristic of erbium-doped fiber amplifier (EDFA) is discussed experimentally.