Harmonic mode locking of bound solitons

Optics Letters
Zhiqiang WangZhixin Zou

Abstract

We systematically investigate the passive harmonic mode locking (HML) of the bound states of two solitons in a fiber laser that has been mode locked by nonlinear polarization rotation (NPR). The experiment shows that the stable HML state of the bound solitons (BSs) with a fixed and discrete separation is obtained. The repetition rate changes by increasing the pump power and slightly altering the polarization state in the cavity. The dynamic is similar to the HML of a single-pulse operation. In our experiment, the repetition rate can be turned from the fundamental mode locking up to ninth-order HML when the pump power is increased from 168 to 476.1 mW. Once the BSs are obtained, their separation is fixed at 1.5 ps, regardless of the HML order. Under the direct BS interaction, the BS trains are very stable and easily reproducible. This HML behavior of BSs confirms that the BS is another intrinsic feature of the laser, except for the single soliton.

References

Aug 15, 1988·Physical Review A: General Physics·M V Tratnik, J E Sipe
Apr 1, 1993·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·B A Malomed
Mar 4, 2008·Optics Letters·Adil HabouchaFrançois Sanchez
Jun 11, 2008·Optics Express·J Nathan Kutz, Björn Sandstede
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Jan 23, 2009·Optics Express·Michel Olivier, Michel Piché
Nov 4, 2011·Optics Letters·Foued AmraniFrançois Sanchez

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Citations

Dec 15, 2018·Optics Letters·Junsong PengLi Zhan
Nov 12, 2019·Frontiers in Chemistry·Yiqing ShuJianqing Li
Oct 20, 2017·Applied Optics·Qingchao SuQingsong Jia
Aug 15, 2015·Optics Letters·Zhiqiang WangXiao Fang

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