Open AccessUltrafast PM fiber ring laser mode-locked by nonlinear polarization evolution with short NPE section segments
Author(s) -
Wenchao Zhang,
Yang Liu,
Chao Wang,
Zhiwei Zhu,
Dong Luo,
Chenlin Gu,
Wenxue Li
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.007934
Subject(s) - fiber laser , optics , materials science , laser , ultrashort pulse , polarization maintaining optical fiber , phase noise , mode locking , physics , optical fiber , fiber optic sensor
We demonstrate a nonlinear polarization evolution (NPE) mode-locked polarization maintaining (PM) Yb-doped fiber laser with short NPE section segments by setting proper splicing angle. With a theoretical analysis, we propose that an appropriate deviation splicing angle exists to maximize the adjustable range of transmission modulation. The simulation results are highly consistent with theoretical conclusions. Experimentally, using the optimal splicing angle predicted by the theoretical calculation, we have achieved an environmentally stable mode-locking fiber laser at 111-MHz repetition rate with corresponding pulse energy of 0.47 nJ. Additionally, the noise performance of this PM fiber laser is characterized. The measured RMS timing jitter and amplitude noise are 6.41 fs and 0.0052% respectively (1 kHz-10 MHz), which are competitive to the low phase noise performance of the typical fiber laser.