DocumentCode :
1453674
Title :
Self-compensated dispersion tuning of a mode-locked fiber laser using a linearly chirped fiber grating
Author :
Lee, K.L. ; Chan, K. ; Shu, C.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Volume :
13
Issue :
2
fYear :
2001
fDate :
2/1/2001 12:00:00 AM
Firstpage :
106
Lastpage :
108
Abstract :
A new approach of self-compensated dispersion tuning is developed to generate wavelength-tunable pulses from a fiber laser. A linearly chirped fiber grating is used in conjunction with a pair of optical circulators and modulators in the cavity. The wavelength has been electrically tuned while maintaining a constant operating frequency of 1 GHz. The laser exhibits a linear tuning relation with respect to the delay time between the electrical control signals. Three chirped gratings providing dispersions of 1446, 50, and 10 ps/nm are used respectively in the experiment and the results are compared. The highest tuning range is about 1 nm and is limited by the chirped bandwidth of the gratings.
Keywords :
chirp modulation; diffraction gratings; fibre lasers; laser beams; laser cavity resonators; laser mode locking; laser tuning; optical circulators; optical modulation; optical pulse generation; 1 GHz; cavity; chirped bandwidth; chirped gratings; delay time; dispersions; electrical control signals; electrically tuned wavelength; fiber laser; gratings; linear tuning relation; linearly chirped fiber grating; mode-locked fiber laser; operating frequency; optical circulators; optical modulators; self-compensated dispersion tuning; tuning range; wavelength; wavelength-tunable pulses; Chirp; Circulators; Distributed power generation; Fiber gratings; Fiber lasers; Laser mode locking; Laser tuning; Optical modulation; Optical pulse generation; Optical tuning;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/68.910503
Filename :
910503
Link To Document :
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