Lasers and Laser Optics

Multiwavelength fiber laser based on semiconductor optical amplifier and few-mode fiber gratings

[+] Author Affiliations
Dae Seung Moon

Gwangju Institute of Science and Technology (GIST), Department of Information and Communications, 1 Oryong-Dong Buk-gu, Gwangju, 500-712, Korea

Youngjoo Chung

Gwangju Institute of Science and Technology (GIST), Department of Information and Communications, 1 Oryong-Dong Buk-gu, Gwangju, 500-712, Korea

Young-Geun Han

Korea Institute of Science and Technology (KIST), Photonics Research Center, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, 136-791, Korea

Opt. Eng. 46(1), 014202 (January 16, 2007). doi:10.1117/1.2431357
History: Received February 04, 2006; Revised June 02, 2006; Accepted June 08, 2006; Published January 16, 2007
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We propose a simple semiconductor optical amplifier–based fiber laser configuration for achieving multiwavelength oscillation at room temperature, in which a few-mode fiber Bragg grating was used as the wavelength-selective component. An amplitude variation of 0.8dB over a 180sec period was obtained for triple-wavelength oscillation at room temperature, which is more stable than that of erbium doped fiber (EDF)–based fiber laser with similar configuration. This multiwavelength laser can be switched between dual- and triple-wavelength operations by properly adjusting the polarization controller in the cavity. The lasing wavelength could be effectively tuned using the thermal heating method, and the output power variation was very small compared with that of the EDF-based fiber laser. This multiwavelength laser has the advantage of simple configuration, good stability, and wavelength tuning with small output power variation.

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© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Dae Seung Moon ; Youngjoo Chung and Young-Geun Han
"Multiwavelength fiber laser based on semiconductor optical amplifier and few-mode fiber gratings", Opt. Eng. 46(1), 014202 (January 16, 2007). ; http://dx.doi.org/10.1117/1.2431357


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