A 168-W high-power single-frequency amplifier in an all-fiber configuration |
| |
| Authors: | Xiao Hu Dong Xiao-Lin Zhou Pu Xu Xiao-Jun and Zhao Guo-Min |
| |
| Institution: | College of Opticelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opticelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opticelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opticelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opticelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China |
| |
| Abstract: | We present a high-power, single-frequency, narrow linewidth fiber amplifier based on master oscillator power amplification chains in an all-fiber configuration. The effect of the delivery fiber on the maximum output power is studied. A home-made 1064-nm seed laser with a 20-kHz linewidth is boosted to 129 W, and limited by stimulated Brillouin scattering (SBS) when the delivery fiber is 1.2 m long. By shortening the delivery fiber length to 0.7 m, the SBS threshold is increased efficiently and the maximum output power rises to 168 W with an 82.9% power conversion efficiency. The experimental results indicate that the output power can be further raised by shortening the delivery fiber length and increasing the pump power. |
| |
| Keywords: | fiber amplifier single frequency all-fiber stimulated Brillouin scattering |
|
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|
