期刊
OPTICS AND LASER TECHNOLOGY
卷 141, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2021.107093
关键词
Switchable fiber lasers; Dual-wavelength fiber lasers; Nonlinear multimode interference
资金
- National Key Research and Development program of China [2016YFB0401901]
- National Natural Science Foundation of China [61675188]
A switchable single wavelength and dual-wavelength all-fiber ultrafast mode-locked laser was reported based on the nonlinear multimode interference effect of graded-index multimode fiber. By adjusting intra-cavity loss and polarization controllers, traditional switchable single wavelength and dual-wavelength mode-locking can be realized, along with the observation of a single wavelength harmonic soliton molecule mode-locking. This laser could be useful in measuring chemical reactions and has rarely been reported in literature.
We report a switchable single wavelength and dual-wavelength all-fiber ultrafast mode-locked lasers based on nonlinear multimode interference (NL-MMI) effect of graded-index multimode fiber (GIMF). The saturable absorber (SA) used in the laser is composed of tapered fiber-GIMF-tapered fiber. The use of tapered fibers not only reduces the dependence on the length of GIMF, but also simplifies the fabrication of SA. The modulation depth of the SA was measured to be 9%. By adjusting intra-cavity loss and the polarization controllers properly, traditional switchable single wavelength and dual-wavelength mode-locking can be realized. Meanwhile, a single wavelength harmonic soliton molecule mode-locking can be observed, and the central wavelength with the same modulation period can be switched between 1558 nm and 1531 nm. Such a switchable harmonic soliton molecules mode-locked laser with wide wavelength intervals could be useful in measuring chemical reactions, and has rarely been reported.
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