Low threshold and highly efficient prismless diode-pumped femtosecond Yb:KYW laser

In this paper, we report a highly-efficient and compact passively mode-locked prism less Yb/sup 3+/:KY(WO/sub 4/)/sub 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 achie...

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Bibliographic Details
Main Authors: Sarmani, A.R., Lagatsky, A.A., Brown, C.T.A., Sibbett, W.
Format: Conference Proceeding
Language:English
Subjects:
Chirp
Diodes
Laser excitation
Laser mode locking
Laser theory
Mirrors
Optical pulses
Power generation
Pump lasers
Ultrafast optics
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Summary:In this paper, we report a highly-efficient and compact passively mode-locked prism less Yb/sup 3+/:KY(WO/sub 4/)/sub 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.
DOI:10.1109/CLEOE.2005.1567807