WDM fiber laser sources

Ahmad K. Atieh

doi:10.1117/12.424779

27 April 2001 WDM fiber laser sources

Ahmad K. Atieh

Proceedings Volume 4282, Rare-Earth-Doped Materials and Devices V; (2001) https://doi.org/10.1117/12.424779
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

Abstract

Two novel simple and flexible WDM laser sources are demonstrated using loop erbium-doped fiber amplifier configuration. The loop serves as a mirror and as an amplification medium. The laser cavity was made form loop mirror and either a set of fiber Bragg gratings (FBGs) in the first design, or a 100 percent reflecting mirror in the second scheme. The FBGs select the proper lasing wavelengths in the first technique, while a combination of stress induced effect of erbium-doped fiber and the presence of fused fiber filter in the laser cavity determine the lasing wavelengths in the second design. The FBGs can be placed either in parallel or in series at the input of the loop configuration. Optical attenuators are placed in front of the FBG to control the flatness of the laser source output and determine the required lasing condition for each wavelength to avoid competition of the different lasing wavelengths. This configuration is flexible for adding any number of wavelengths as long as enough amplified spontaneous emission is generated in the loop. Signal to noise ratio as high as 55-dB can be achieved.

Citation Download Citation

Ahmad K. Atieh "WDM fiber laser sources", Proc. SPIE 4282, Rare-Earth-Doped Materials and Devices V, (27 April 2001); https://doi.org/10.1117/12.424779

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