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Optical Engineering

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

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 0.8 dB over a 180-sec 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.

Paper Details

Date Published: 1 January 2007
PDF: 3 pages
Opt. Eng. 46(1) 014202 doi: 10.1117/1.2431357
Published in: Optical Engineering Volume 46, Issue 1
Show Author Affiliations
Dae Seung Moon, Gwangju Institute of Science and Technology (South Korea)
Youngjoo Chung, Gwangju Institute of Science and Technology (South Korea)
Young-Geun Han, Korea Institute of Science and Technology (South Korea)


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