Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1534840 | Optics Communications | 2014 | 5 Pages |
Abstract
A picosecond tunable ytterbium-doped double-clad fiber oscillator with semiconductor saturable absorber mirror (SESAM) mode-locking large mode area (LMA) photonic crystal fiber (PCF) is demonstrated. Without any tunable elements in the oscillator, we obtain self-starting mode locking ytterbium-doped fiber oscillator tunable over 35.5Â nm. The center wavelength in the ranges from 1028.5Â nm to 1064Â nm with excellent beam quality is achieved by proper adjusting the polarization beam splitter (PBS), half-wave plate (HWF) and SESAM in the laser cavity. The output power ranges from 0.76Â W to 1.01Â W at the different center wavelengths under the same incident pump power. A narrow spectral bandwidth with only 0.25-0.5Â nm and pulsed duration with 7.9Â ps have been obtained at the different center wavelengths. The repetition rate has been measured to be about 45.9Â MHz, which has a slight change for the different center wavelengths.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Pingxue Li, Ziqiang Zhao, Junjie Chi, Chun Yang, Guangju Zhang, Haowei Hu, Yifei Yao, Yao Li, Xiongfei Wang, Guoshun Zhong, Hong Zhao, Dongsheng Jiang,