Pan Shilong, Lou Caiyun, Gao Yizi
Opt Express. 2006 Feb 6;14(3):1113-8. doi: 10.1364/oe.14.001113.
We demonstrated a simple technique to obtain stable room temperature multiwavelength lasing in an erbium-doped fiber laser by the inhomogeneous loss mechanism. Successful reduction of the cross-gain saturation in erbium-doped fiber was achieved by incorporating a section of highly nonlinear fiber (HNLF) and a Fabry-Perot filter (FPF) in the laser cavity. More than 70 wavelengths simultaneous lasing were observed with the same frequency space of 25GHz. The laser had a total output power of 3.2dBm, a bandwidth of 0.012nm (1.5GHz) and a signal-to-spontaneous-noise ratio of ~44dB. Furthermore, the total output power can be increased to more than 190mW by moving the output port right after the EDFA.
我们展示了一种简单的技术，通过非均匀损耗机制在掺铒光纤激光器中获得稳定的室温多波长激光。通过在激光腔中加入一段高非线性光纤（HNLF）和一个法布里-珀罗滤波器（FPF），成功降低了掺铒光纤中的交叉增益饱和。观察到超过70个波长同时激射，频率间隔为25GHz。该激光器的总输出功率约为3.2dBm，带宽为0.012nm（约1.5GHz），信号与自发噪声比约为44dB。此外，通过将输出端口移到掺铒光纤放大器（EDFA）之后，总输出功率可以增加到超过190mW。
