DocumentCode
1323585
Title
Passive Harmonically Mode-Locked Yb 
-Doped Fiber Laser Free From Anomalous Dispersion
Author
Liu, Dongfeng ; Zhu, Xiaojun ; Wang, Chinhua ; Yu, Jianjun ; Zhang, Guiju ; Fang, Erxi ; Wang, Jiajun
Author_Institution
Key Lab. of Adv. Opt. Manuf. of Jiangsu Province, Soochow Univ., Suzhou, China
Volume
22
Issue
23
fYear
2010
Firstpage
1726
Lastpage
1728
Abstract
We report on an all normal dispersion harmonically mode-locked ytterbium-doped femtosecond fiber laser. The mode-locking mechanism of the laser is based on nonlinear polarization evolution with strong pulse shaping. Bandpass filtering is achieved with a cascaded long-period fiber grating, forming highly chirped pulses. The laser generates stable 2.5-ps duration pulses at a repetition rate of 125.39 MHz that could be dechirped externally to 310 fs with a maximum pulse energy of 0.36 nJ.
Keywords
band-pass filters; chirp modulation; diffraction gratings; fibre lasers; laser mode locking; optical fibre dispersion; optical fibre polarisation; optical filters; optical harmonic generation; optical pulse generation; optical pulse shaping; JkJk:Yb; anomalous dispersion; bandpass filtering; cascaded long-period fiber grating; energy 0.36 nJ; femtosecond fiber laser; frequency 125.39 MHz; mode-locking mechanism; nonlinear polarization; passive harmonic fiber laser; pulse shaping; time 2.5 ps; time 310 fs; Fiber lasers; Laser mode locking; Optical fiber communication; Optical fiber dispersion; Optical fiber polarization; Power harmonic filters; Quantum cascade lasers; Fiber lasers; fiber-optics amplifiers and oscillators; long-period fiber grating; mode-locked laser; ultrafast laser;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2010.2076276
Filename
5570904
Link To Document