偏振动态可调耗散孤子光纤激光器实验研究

Translated title of the contribution: Experimental study on dissipative soliton fiber laser with dynamically tunable polarization trajectory

Chang Zhao, Qian qian Huang, Zi nan Huang, Li long Dai, Sergey Sergeyev, Aleksey Rozhin, Cheng bo Mou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a dissipative soliton mode-locked fiber laser is established based on carbon nanotube in order to study the polarization dynamics of dissipative soliton by using a commercial polarimeter. Under the pump power of 160 mW, stable dissipatives soliton are observed to have a limited cycle polarization trajectory shown on Poincare sphere, indicating the periodic modulation of anisotropy in cavity. The stable dissipative soliton possesses a high signal noise ratio of 57.7 dB at fundamental frequency. Moreover, the fast oscillation of state of polarization leads to a lower degree of polarization (DOP). In addition, the polarization controllers are employed to compensate for the birefringence in the cavity to adjust the ratio between cavity length and birefringence length. As a result, we can observe the polarization evolving from the polarization locked attractor to the limited cycle attractor by adjusting polarization controllers. It is noted that this dynamic polarization trajectory can be manually controlled. By comparing polarization attractor with DOP, it is clear that the size of trajectory shown on Poincare sphere is inversely proportional to DOP. We expect our work to be conducible to studying the physics in lasers and creating a new type of polarization tunable laser.

Translated title of the contributionExperimental study on dissipative soliton fiber laser with dynamically tunable polarization trajectory
Original languageChinese
Article number184218
JournalWuli Xuebao/Acta Physica Sinica
Volume69
Issue number18
DOIs
Publication statusPublished - 20 Sep 2020

Keywords

  • Dissipative soliton
  • Fiber laser
  • Polarization attractor

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