Passively mode-locked thulium-doped all-fiber laser based on low V number fiber bending
Optics
2020-01-07 v1
Abstract
This paper describes a mode locking technique based on enhanced polarization dependent loss (PDL). The method utilizes a bent single mode fiber (SMF28) coil to induce sufficient PDL at 2 m wavelength region. Significant PDL in SMF28 coils is enabled since the light is much more weakly guided. A passively mode-locked thulium doped all-fiber laser is demonstrated using this simple device with polarization controllers as mode locker. The results indicate a moderate amount of 1 dB is sufficient to initiate and sustain stable mode-locking operation. We believe, to the best of our knowledge, this is the first demonstration of mode-locked fiber laser fully based on polarization dependent property of bent fiber section.
Keywords
Cite
@article{arxiv.2001.01386,
title = {Passively mode-locked thulium-doped all-fiber laser based on low V number fiber bending},
author = {Hongbo Jiang and Yunpeng Huang and Zihao Zhao and Lei Jin and Shinji Yamashita and Sze Y. Set},
journal= {arXiv preprint arXiv:2001.01386},
year = {2020}
}
Comments
4 pages, 7 figures