Title :
Low threshold and highly efficient prismless diode-pumped femtosecond Yb:KYW laser
Author :
Sarmani, A.R. ; Lagatsky, A.A. ; Brown, C.T.A. ; Sibbett, W.
Author_Institution :
Ultrafast Photonics Collaboration, Saint Andrews Univ., UK
Abstract :
In this paper, we report a highly-efficient and compact passively mode-locked prism less Yb3+:KY(WO4)2 (Yb:KYW) laser pumped by a single-mode laser diode and incorporating a pair of chirped mirrors for positive dispersion compensation. A slope efficiency of up to 62% has been achieved during femtosecond operation and near-transform limited pulses of 180 fs at 1038 nm were produced with an average output power in excess of 90 mW for an incident pump power of just 320 mW.
Keywords :
high-speed optical techniques; laser mirrors; laser mode locking; laser modes; optical pumping; potassium compounds; solid lasers; ytterbium; yttrium compounds; 1038 nm; 180 fs; KY(WO4)2:Yb3+; chirped mirrors; laser slope efficiency; near-transform limited pulse; passive mode-locking; positive dispersion compensation; single-mode laser diode-pumped femtosecond Yb:KY(WO4)2 laser; Chirp; Diodes; Laser excitation; Laser mode locking; Laser theory; Mirrors; Optical pulses; Power generation; Pump lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1567807
