L-band multiwavelength erbium-doped fiber ring laser for sensing applications
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AuthorPérez Herrera, Rosa Ana; Ullán Nieto, Ángel; Leandro, D.; Fernández Vallejo, Montserrat; Quintela Incera, María Ángeles; Loayssa Lara, Alayn; López Higuera, José Miguel; López Amo, Manuel
© 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Proceedings of SPIE, 2011, vol. 7753, 77533C
21st International Conference on Optical Fiber Sensors, Ottawa, 2011
SPIE Society of Photo-Optical Instrumentation Engineers
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Erbium doped fiber
Fiber Bragg grating
Optical fiber amplifier
Optical fiber ring laser
Single-longitudinal mode (SLM)
In this work, a novel single-longitudinal-mode (SLM) four-wavelength laser configuration for sensing applications in L-band is proposed and experimentally demonstrated. This spectral region presents some advantages for the detection of dangerous gases. The sensor system presented here is based on ring resonators, and employs fiber Bragg gratings to select the operation wavelengths. The stable SLM operation is guaranteed when all the lasing channels present similar output powers. It is also experimentally demonstrated that when a SLM behavior is achieved, lower output power fluctuations are obtained.