Switchable dual-wavelength fiber lasers based on a semiconductor optical amplifier and a polarization-maintaining fiber Bragg grating

Switchable dual-wavelength fiber lasers with orthogonal polarizations, based on the semiconductor optical amplifier at room temperature, are proposed. One polarization-maintaining fiber Bragg grating (PMFBG) is used as the wavelength-selective filter in three different laser configurations. Owing to...

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Bibliographic Details
Published in:Optical Engineering 2009-03, Vol.48 (3), p.035001-035007
Main Authors: Feng, Suchun, Xu, Ou, Lu, Shaohua, Mao, Xiangqiao, Ning, Tigang, Jian, Shuisheng
Format: Article
Language:English
Subjects:
Bragg gratings
Fiber lasers
Lasers
Noise levels
optical fiber lasers
Optical fibers
Polarization
polarization-maintaining fiber Bragg grating
semiconductor optical amplifier
Semiconductor optical amplifiers
Wavelengths
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Summary:Switchable dual-wavelength fiber lasers with orthogonal polarizations, based on the semiconductor optical amplifier at room temperature, are proposed. One polarization-maintaining fiber Bragg grating (PMFBG) is used as the wavelength-selective filter in three different laser configurations. Owing to the polarization-dependent loss of the PMFBG, the laser can be designed to operate in stable dual-wavelength or wavelength-switching modes with a wavelength spacing of at room temperature by adjusting a polarization controller in each laser configuration. The amplitude variation over nearly half an hour is less than for both wavelengths in each laser configuration, which is more stable than that of erbium-doped fiber lasers with similar configuration.
ISSN:0091-3286
1560-2303
DOI:10.1117/1.3090436