Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor optical amplifier
Chinese Optics Letters, Vol. 7, Issue 6, pp. 469-471 (2009)
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Abstract
A simple and cost-effective multi-wavelength fiber ring laser based on a chirped Moiré fiber grating (CMFG) and a semiconductor optical amplifier (SOA) is proposed. Stable triple-wavelength lasing oscillations at room temperature are experimentally demonstrated. The measured optical signal-to-noise ratio (SNR) reaches the highest value of 50 dB and the power fluctuation of each wavelength is less than 0.2 dB within a 1-h period. To serve as a wavelength selective element, the CMFG possesses excellent comb-like filtering characteristics including stable wavelength interval and ultra-narrow passband, and its fabrication method is easy and flexible. The lasing oscillation shows a narrower bandwidth than SOA-based multi-wavelength fiber lasers utilizing some other kinds of wavelength selective components. Methods to optimize the laser performance are also discussed.
© 2009 Chinese Optics Letters
OCIS Codes
(140.4480) Lasers and laser optics : Optical amplifiers
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(060.3510) Fiber optics and optical communications : Lasers, fiber
Citation
Shaohua Lu, Ou Xu, Suchun Feng, and Shuisheng Jian, "Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor optical amplifier," Chin. Opt. Lett. 7, 469-471 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-6-469
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