期刊
IEEE PHOTONICS JOURNAL
卷 13, 期 1, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2020.3043425
关键词
Solitons; Laser mode locking; Fiber lasers; Optical fiber dispersion; Laser stability; Optical fibers; Optical fiber polarization; Soliton molecules; mode-locking; fiber laser
资金
- National Natural Science Foundation of China [61805281, 61675008]
- Natural Science Foundation of Guangdong Province, China [2019A1515010732]
- Tsinghua-Berkeley Shenzhen Institute (TBSI) Faculty Start-up Fund
- Shenzhen Technology and Innovation Council [JCYJ20180507183815699]
The experimental observation of soliton molecules in a robust all polarization-maintaining (PM) mode-locked fiber laser with a nonreciprocal phase bias has been reported for the first time, resulting in a low self-starting threshold and stable mode locking. By elaborately tuning waveplates in the cavity, versatile soliton molecules are achieved and manipulated at different pump powers. Theoretical investigations show good concurrence with achieved experimental results regarding the spectral characteristics of soliton molecules with various phase differences and time separations in the cavity.
We report the first experimental observation, to the best of our knowledge, of soliton molecules in a robust all polarization-maintaining (PM) mode-locked fiber laser with a nonreciprocal phase bias that results in a low self-starting threshold and stable mode locking. Through elaborately tuning the waveplate in the cavity, calibrating the laser pulse from conventional soliton to soliton molecules is implemented, and versatile soliton molecules including harmonic soliton pairs, tightly or loosely bound soliton quartets, multipulse bound solitons are achieved and manipulated at different pump powers. Theoretical investigations are established to elucidate the soliton molecules spectral characteristics with various phase differences and time separations in the cavity that elicit good concurrence with achieved experimental results. The achieved results both rich the nonlinear dynamics in fiber lasers and pave the potential applications for this excellent architecture fiber laser.
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