784-nm amplified spontaneous emission from Tm3+-doped fluoride glass fiber pumped by an 1120-nm fiber laser.
We report 784-nm (1G4 --> 3H5 transition) amplified spontaneous emission (ASE) from Tm3+-doped fluoride (ZrF4-BaF2-LaF3-AlF3-NaF) glass fiber pumped by an 1120-nm fiber laser. To our best knowledge, this is the first report of 784-nm (1G4 --> 3H5 transition) ASE in a Tm3+-doped fluoride fiber laser. Its effects on a 480-nm (1G4 --> 3H6 transition) blue laser were also discussed.
Qin
Guanshi
G
Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Tokyo 182-8585, Japan. gsqin@yahoo.com
Huang
Shenghong
S
Feng
Yan
Y
Shirakawa
A
A
Ueda
Ken-ichi
K