Tang Jianguan, Sun Junqiang, Zhao Liang, Chen Tao, Huang Tianye, Zhou Yujie
Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.
Opt Express. 2011 Jul 18;19(15):14682-9. doi: 10.1364/OE.19.014682.
A tunable multiwavelength Brillouin-erbium comb fiber laser with ultra-narrow wavelength spacing and a large wavelength number, employing a 135-m highly nonlinear fiber, has been experimentally demonstrated. The simultaneous presence of Brillouin pump and Stokes lines within the ring cavity initiate higher-order Stokes and anti-Stokes lines via multiple four-wave mixing processes. The experiment demonstrates that this is an effective solution of increasing the number of lasing lines. Up to 150 lasing lines in single-longitudinal-mode operation with a rigid wavelength spacing of 0.075 nm have been achieved at 1480 nm pump powers of 165 mW and Brillouin pump power of 12.0 dBm. The multiwavelength source exhibits a good stability on both the operating wavelengths and the output powers, and a 6-nm tuning range from 1562 nm to 1568 nm is obtained.
一种采用135米高非线性光纤的、具有超窄波长间隔和大量波长数的可调谐多波长布里渊 - 铒梳状光纤激光器已通过实验得到验证。环形腔内同时存在的布里渊泵浦光和斯托克斯线通过多个四波混频过程产生高阶斯托克斯线和反斯托克斯线。实验表明，这是增加激光线数量的一种有效解决方案。在165毫瓦的1480纳米泵浦功率和12.0分贝毫瓦的布里渊泵浦功率下，实现了单纵模运行时高达150条激光线，其波长间隔固定为0.075纳米。该多波长光源在工作波长和输出功率方面均表现出良好的稳定性，并且获得了从1562纳米到1568纳米的6纳米调谐范围。
