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1 September 2010 Comparative study of Raman fiber laser in symmetrical and asymmetrical cavities
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We propose and demonstrate a novel technique to generate a stable multiwavelength Raman fiber laser (RFL) based on an asymmetrical all-fiber Raman laser cavity by using a wideband chirped fiber Bragg grating (CFBG). The wideband CFBG as an input reflector has a high reflectivity covering the spectral range from 1402 to 1463 nm. Output couplers are composed of three discrete fiber Bragg gratings (FBGs), which generate a multiwavelength laser with center wavelengths of 1415, 1430, and 1445 nm. The output power variations from detuning the center wavelengths of the in-out reflectors are compared experimentally and theoretically in symmetrical and asymmetrical cavities. It is shown that the RFL output with an asymmetric cavity is more stable than that of a symmetric cavity.
©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Young-Eun Im, Kyungwon Chun, Hangeul Kim, Dong-Hwan Kim, Swook Hann, Youngjoo Chung, and Chang-Soo Park "Comparative study of Raman fiber laser in symmetrical and asymmetrical cavities," Optical Engineering 49(9), 091008 (1 September 2010).
Published: 1 September 2010

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