Efficient second-harmonic generation of continuous-wave Yb fiber lasers coupled with an external resonant cavity

Title
Efficient second-harmonic generation of continuous-wave Yb fiber lasers coupled with an external resonant cavity
Authors
김지원정지호이관일이상배
Keywords
Fiber laser; External resonant cavity; LBO; Second harmonic; Yb fiber
Issue Date
2012-09
Publisher
Applied physics. B, Lasers and optics
Citation
VOL 108, NO 3, 539-543
Abstract
Efficient second-harmonic generation of continuous- wave Yb fiber lasers is reported. A simple bow-tie external resonant cavity incorporating a type I LBO nonlinear optical crystal was employed for second harmonic frequency conversion of a multi-longitudinal-mode Yb fiber laser. It is shown that strong coupling was formed between the Yb fiber laser and the external cavity and, as a result, the laser produced 9.1 W of green output at 535 nm for 43 W of absorbed diode pump power at 975 nm corresponding to an optical conversion efficiency of 21 % with respect to absorbed diode pump power. The prospects for further improvement are discussed.
URI
http://pubs.kist.re.kr/handle/201004/42813
ISSN
09462171
Appears in Collections:
KIST Publication > Article
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