期刊
CHINESE OPTICS LETTERS
卷 20, 期 2, 页码 -出版社
OSA-OPTICAL SOC
DOI: 10.3788/COL202220.020602
关键词
mode-locked fiber laser; few-mode fiber; mode converter
类别
资金
- National Natural Science Foundation of China [91950105, 62175116]
- 1311 Talent Plan of Nanjing University of Posts and Telecommunications
In this paper, a method combining FM-FBG and AOMC is proposed to achieve narrow linewidth mode-locked pulse output with adjustable transverse mode and wavelength in a fiber laser. The results of experiments show that by adjusting the acoustic frequency in AOMC, the wavelength of mode-locked pulses can be switched and mode conversion can be achieved. This laser may find applications in mode-division multiplexing systems.
Acousto-optic interaction can be used for ultrafast optical field control in passively mode-locked fiber lasers. Here, we propose the use of an intracavity acousto-optic mode converter (AOMC) with combination of a few-mode fiber Bragg gratings (FM-FBG) to achieve narrow linewidth mode-locked pulse output with switchable transverse mode and wavelength in a ring fiber laser. Due to the selectivity of the FM-FBG to the input mode, the output mode and wavelength can be adjusted in the mode-locked fiber laser based on a semiconductor saturable absorption mirror. In experiments, by adjusting the acoustic frequency imposed in the AOMC, the wavelength of mode-locked pulses was switched from 1551.52 nm to 1550.21 nm, retaining the repetition rate of 12.68 MHz. At the same time, the mode conversion from the LP01 to the LP11 mode in the FM-FBG transmission port was achieved. This laser may find application in mode-division multiplexing systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据