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High-power mode-locked operation of Yb-doped NaY(WO4)2 end-pumped by laser diodes

✍ Scribed by H. Luo; D.Y. Tang; G.Q. Xie; H.J. Zhang; L.J. Qin; H.H. Yu; L.J. Qian

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 190 KB
Volume: 5
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200810046

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✦ Synopsis

Passively cw mode-locked laser operation of Ybdoped NaY(WO4)2 (Yb:NaYW) crystal was demonstrated with an average power of 400 mW. This is the highest power achieved from the mode-locked Yb:NaYW laser to our knowledge. The laser was end-pumped by a high power fiber pigtailed laser diode bar and the mode-locking was enabled by a semiconductor saturable absorber mirror (SESAM). The laser pulse duration was 1.1 ps, centered at the wavelength of 1019.7 nm with a bandwidth of 1.6 nm, and nearly transform-limited. (a) Voltage, 1 V/div Time, 50 ns/div (b) Voltage, 0.25 V/div Time, 5 µs/div Pulse trains of (a) cw mode-locking and (b) Q-switched modelocking from Yb:NaYW laser output

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