26 February 2018 Theoretical study and design of third-order random fiber laser
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Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105122I (2018) https://doi.org/10.1117/12.2291196
Event: SPIE LASE, 2018, San Francisco, California, United States
Abstract
We present result of achieving a random fiber laser at a working wavelength of 1178nm while pumping at 1018nm. The laser power is realized by 200m long cavity which includes three high reflectivity fiber Bragg gratings. This simple and efficient random fiber laser could provide a novel approach to realize low-threshold and high-efficiency 1178nm long wavelength laser. We theoretically analyzed the laser power in random fiber lasers at different pump power by changing three high reflectivity fiber Bragg gratings. We also calculated the forward and backward power of 1st-order stokes, 2nd-order stokes, 3rd-order stokes. With the theoretical analysis, we optimize the cavity’s reflectivity to get higher laser power output. The forward random laser exhibits larger gain, the backward random laser has lower gain. By controlling the value of angle-cleaved end fiber’s reflectivity to 3×10-7, when the high reflectivity increases from 0.01 to 0.99, the laser power increases, using this proposed configuration, the 1178nm random laser can be generated easily and stably.
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Zhaoxin Xie, Zhaoxin Xie, Wei Shi, Wei Shi, Shijie Fu, Shijie Fu, Quan Sheng, Quan Sheng, Jianquan Yao, Jianquan Yao, } "Theoretical study and design of third-order random fiber laser", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105122I (26 February 2018); doi: 10.1117/12.2291196; https://doi.org/10.1117/12.2291196
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