Multiwavelength fiber ring laser source based on a delayed interferometer

A multiwavelength fiber laser source is demonstrated with a semiconductor optical amplifier as the gain medium. A delayed interferometer is incorporated in the ring cavity serving as a comb-like multichannel filter. A stable 75-wavelength simultaneous operation spaced at 40 GHz with the extinction r...

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Bibliographic Details
Published in:IEEE photonics technology letters 2005-02, Vol.17 (2), p.303-305
Main Authors: Dong, H., Zhu, G., Wang, Q., Sun, H., Dutta, N.K., Jaques, J., Piccirilli, A.B.
Format: Article
Language:English
Subjects:
Delay
Delayed interferometer (DI)
Extinction ratio
Fiber lasers
Gain
Holes
Interferometers
Laser tuning
Lasing
multiwavelength
Noise levels
Optical fiber filters
Optical interferometry
Optical tuning
Ring lasers
Semiconductor lasers
Semiconductor optical amplifiers
semiconductor optical amplifiers (SOAs)
stability
Tuning
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Description
Summary:A multiwavelength fiber laser source is demonstrated with a semiconductor optical amplifier as the gain medium. A delayed interferometer is incorporated in the ring cavity serving as a comb-like multichannel filter. A stable 75-wavelength simultaneous operation spaced at 40 GHz with the extinction ratio of 40 dB is achieved. By tuning the cavity loss, the center wavelength of the generated lasing waveband could be varied by as much as 20 nm.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2004.840814