Fiber Optics and Optical Communication

Medium-power erbium-ytterbium-codoped multiwavelength fiber laser

[+] Author Affiliations
Gautam Das, Mansour Dastmalchi

Lakehead University,Department of Physics, 955 Oliver Road, Thunder Bay, Ontario, Canada P7B 5E1

Opt. Eng. 47(6), 065003 (June 10, 2008). doi:10.1117/1.2939092
History: Received December 12, 2007; Revised March 07, 2008; Accepted April 01, 2008; Published June 10, 2008
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This paper describes the design and operation of a stable single-longitudinal-mode medium-power multiwavelength fiber ring laser at room temperature. Single-longitudinal-mode oscillation was achieved by using an unpumped polarization-maintaining erbium-doped fiber inside the cavity as a saturable absorber. To investigate the function of the saturable absorber, erbium-doped fibers with different erbium concentrations and lengths were used. The output characteristics of the laser were studied using a scanning Fabry-Perot spectrum analyzer of resolution 27MHz and an optical spectrum analyzer of resolution 6.25GHz. The total output power of the laser obtained was more than 100mW. The minimum separation between lasing wavelengths for stable single-longitudinal-mode oscillations, number of lasing lines, tunability, and maximum available output power were also explored.

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© 2008 Society of Photo-Optical Instrumentation Engineers


Gautam Das and Mansour Dastmalchi
"Medium-power erbium-ytterbium-codoped multiwavelength fiber laser", Opt. Eng. 47(6), 065003 (June 10, 2008). ; http://dx.doi.org/10.1117/1.2939092

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