光学
光纤激光器
物理
多模光纤
激光器
模式锁定
飞秒
光纤
材料科学
波长
作者
Zhaokun Wang,Wendi Wu,Tianyu Zhu,Kuo Hua,Shuo Chang,D. N. Wang,Feng Gao
出处
期刊:Optics Letters
[The Optical Society]
日期:2020-12-24
卷期号:46 (1): 118-118
被引量:13
摘要
In this Letter, we implement a multimode fiber (MMF) laser system mode-locked by a nonlinear polarization rotation technique for controllable synchronous multi-wavelength soliton generation. The synchronization of the repetition rates for different wavelengths is realized by the special mode transmission in MMF. For dual-wavelength mode-locking at 1566.7 nm and 1617.2 nm, each of the synchronously mode-locked solitons consists of a train of quasi-periodic beat pulses with a pulse width of 84 fs and period of 162 fs. The total output power reaches 532 mW with optimally balanced two-color intensities. Furthermore, switchable dual- and tri-wavelength synchronized femtosecond pulses are also obtained. In contrast to previous reports, this synchronously mode-locked multi-wavelength is output directly from a laser oscillator, which provides a simpler candidate to achieve pulse synchronization.
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