Fiber core mode leakage induced by refractive index variation in high-power fiber laser |
| |
Institution: | Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China |
| |
Abstract: | This paper presents an investigation of specific optical fiber core mode leakage behavior that occurs in high-power double-clad fiber lasers as a result of thermally-induced refractive index variations. A model of the power transfer between the core modes and the cladding modes during thermally-induced refractive index variations is established based on the mode coupling theory. The results of numerical simulations based on actual laser parameters are presented. Experimental measurements were also carried out, the results showed good agreement with the corresponding simulation results. |
| |
Keywords: | double-clad fiber laser and amplifier core loss cladding mode mode coupling theory |
本文献已被 CNKI 等数据库收录! |
| 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 |
|