期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 28, 期 16, 页码 1786-1789出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2016.2572167
关键词
Optical fiber lasers; ultrafast optics; optical pulse generation; optical fiber devices
资金
- Major National Basic Research Program of China [2013CB922401]
- National Key Scientific Instrument and Equipment Development Program [2012YQ14000505]
- Major Instrument Development International Cooperation Program [2013DFA12750]
- National Natural Science Foundation of China [61575004, 31327901]
An Yb-doped, all-polarization-maintaining fiber laser oscillator with a nonlinear amplifying loop mirror is presented in this letter. A new compact non-reciprocal phase shifter biased fiber loop mirror was engaged inside the fiber laser, which results in a low threshold and stable mode locking. With a 2.8-nm filter inside the cavity, the mode locked output power is 4.1 mW with the repetition rate of 31.35 MHz at the pump power of 80 mW. The spectral bandwidth of the pulse is 3.1 nm. The pulsewidth of the direct output and the dechirped pulse are 2.13 ps and 538 fs, respectively. The filter bandwidth plays a significant role in the spectrum bandwidth and the direct output pulse width.
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