We comment on the recent Letter by Argyros [Opt. Lett.29, 1882 (2004)] in which a microstructured polymer fiber doped with the dye Rhodamine 6G was discussed as a possible fiber laser source. We suggest that the lasing action at 632 nm was due to stimulated Raman scattering in the poly(methyl methacrylate) host material.
© 2005 Optical Society of America
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber
(230.3990) Optical devices : Micro-optical devices
Ursula Gibson and Ulf Österberg, "Comment on "Microstructured polymer fiber laser"," Opt. Lett. 30, 1827-1828 (2005)