Photodarkening and photobleaching of Yb-doped germanosilicate and aluminosilicate fibers have been studied. We show violet laser diodes (407nm) can efficiently bleach photodarkening even with low-intensity cladding-irradiation. Coirradiation of pumping and bleaching lights was also investigated.
© 2010 The Optical Society
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2270) Fiber optics and optical communications : Fiber characterization
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3510) Lasers and laser optics : Lasers, fiber
N. Inoue, A. Shirakawa, and K. Ueda, "Photodarkening and Photobleaching of Yb-Doped Fibers by Laser Diodes," in Conference on Lasers and Electro-Optics 2010, OSA Technical Digest (CD) (Optical Society of America, 2010), paper CMGG5.
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