Mamdoohi G, Sarmani A R, Yaacob M H, Mokhtar M, Mahdi M A
Opt Express. 2013 Dec 30;21(26):31800-8. doi: 10.1364/OE.21.031800.
We demonstrate a single-spacing, multi-wavelength Brillouin-Raman fiber laser utilizing an enhanced cavity of nonlinear amplifying loop mirror. In this structure, the optimization of multi-wavelength lasing is done with proper adjustments of coupling ratio and Brillouin pump power. When setting the Raman pump power to 300 mW, up to 28 channels with an average 17 dB optical signal-to-noise ratio are achieved. In this case, the Brillouin pump power is maintained at -2.6 dBm when the splitting ratio and Brillouin pump wavelength are fixed at 99/1 and 1555 nm, correspondingly. Our achievements present high numbers of Stokes channels with an acceptable optical signal-to-noise ratio at low pump power operation.
我们展示了一种利用非线性放大环形镜增强腔的单间距、多波长布里渊-拉曼光纤激光器。在这种结构中，通过适当调整耦合比和布里渊泵浦功率来实现多波长激光的优化。当将拉曼泵浦功率设置为300 mW时，可实现多达28个通道，平均光信噪比为17 dB。在这种情况下，当分光比和布里渊泵浦波长分别固定为99/1和1555 nm时，布里渊泵浦功率保持在-2.6 dBm。我们的成果表明，在低泵浦功率运行下，能获得大量具有可接受光信噪比的斯托克斯通道。
