Abstract
Using optical frequency-domain reflectometry to reveal the gain distribution and allow us to optimize a thulium-doped fiber amplifier, we have demonstrated 18-dB gain by employing only 5 m of a 2000-parts-in-–Tm-doped fiber pumped with 145 mW of power at dual wavelengths of 800 and 1050 nm. The role of the 800-nm pump, which by itself does not permit population inversion, was clearly observed experimentally.
© 2003 Optical Society of America
Full Article | PDF ArticleMore Like This
Claudio Floridia, M. T. Carvalho, S. R. Lüthi, and A. S. L. Gomes
Opt. Lett. 29(17) 1983-1985 (2004)
Tadashi Kasamatsu, Yutaka Yano, and Hitoshi Sekita
Opt. Lett. 24(23) 1684-1686 (1999)
Shaoxiong Shen, Animesh Jha, Lihui Huang, and Purushottam Joshi
Opt. Lett. 30(12) 1437-1439 (2005)