Zulkifli Mohd Zamani, Ahmad Harith, Taib Jaffar Mohamed, Muhammad Farah Diana, Dimyati Kaharudin, Harun Sulaiman Wadi
Photonics Research Centre, University of Malaya, Kuala Lumpur, Malaysia.
Appl Opt. 2013 Jun 1;52(16):3753-6. doi: 10.1364/AO.52.003753.
A multiwavelength Brillouin/Raman distributed Bragg reflector fiber laser operating in the S-band region is proposed and demonstrated. The laser uses a 7.7 km long dispersion-shifted fiber with an effective mode area of 15 μm(2) as the Brillouin and Raman gain media simultaneously. Two 1420 nm laser diodes with a combined power of 372 mW are used as pump sources, while a fiber Bragg grating with a center wavelength of 1500 nm is used as a reflector in the cavity. The setup is capable of generating 6 clearly defined Stokes lines at the highest pump power, spanning from 1499.8 to 1500.3 nm with the even Stokes having relatively higher peak powers, between 1.4 and 3.5 dBm as compared to the odd Stokes, which have peak powers between -4.7 and -5.0 dBm. The output of the laser is very stable and shows little to no fluctuations over a monitoring period of 50 min.
提出并演示了一种工作在S波段区域的多波长布里渊/拉曼分布布拉格反射器光纤激光器。该激光器同时使用一根有效模面积为15μm²、长度为7.7 km的色散位移光纤作为布里渊和拉曼增益介质。两个组合功率为372 mW的1420 nm激光二极管用作泵浦源，而中心波长为1500 nm的光纤布拉格光栅用作腔内反射器。该装置在最高泵浦功率下能够产生6条清晰定义的斯托克斯线，波长范围为1499.8至1500.3 nm，偶数阶斯托克斯线具有相对较高的峰值功率，与奇数阶斯托克斯线相比，峰值功率在1.4至3.5 dBm之间，奇数阶斯托克斯线的峰值功率在-4.7至-5.0 dBm之间。激光器的输出非常稳定，在50分钟的监测期内几乎没有波动。
