Title :
End-pumped Yb-doped fluorapatite laser
Author :
Scheps, Richard ; Myers, Joseph F. ; Payne, Stephen A.
Author_Institution :
Naval Command Control & Ocean Surveillance Center, San Diego, CA, USA
Abstract :
An ytterbium:fluorapatite (Yb:FAP) laser crystal was longitudinally pumped using a Ti:sapphire laser emitting at 905 nm. The highest slope efficiency obtained was 60.5%, and the maximum output power was 214 mW with a pump power of 438 mW. Repetitive Q-switching was demonstrated for the first time. The Q-switched average power was identical to the continuous-wave (CW) power at repetition rates exceeding 20 kHz, as is consistent with the 1.08-ns emission lifetime.<>
Keywords :
Q-switching; calcium compounds; optical pumping; solid lasers; ytterbium; 1.08 ms; 20 kHz; 214 mW; 438 mW; 60.5 percent; 905 nm; Al/sub 2/O/sub 3/:Ti; Ca/sub 5/(PO/sub 4/)/sub 3/F:Yb; Q-switched average power; Ti:sapphire laser; Yb:FAP; continuous-wave power; emission lifetime; end-pumped Yb-doped fluorapatite laser; highest slope efficiency; longitudinally pumping; maximum output power; pump power; repetition rates; repetitive Q-switching; Absorption; Laser beams; Laser excitation; Mirrors; Photonics; Power lasers; Pump lasers; Sea measurements; Switches; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
