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Single-mode oscillation of compact fiber-coupled laser-diode-pumped Nd:YVO/sub 4//KTP green laser

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6 Author(s)
Chen, Y.F. ; Precision Instrum. Dev. Center, Nat. Sci. Council, Hsinchu, Taiwan ; Kao, C.F. ; Huang, T.M. ; Wang, C.L.
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A compact efficient single-longitudinal-mode green laser has been demonstrated in a simple resonator formed by a coated Nd:YVO/sub 4/ crystal and a coated KTP crystal. The thermal-induced lens in the crystal provides a stable resonator with a good overlap of laser mode and pump size due to the circular pump profile of the fiber-coupled diode. Under the optimum cavity-length condition, 206 mW of green output power corresponding to a conversion efficiency 26.8% was obtained when pumped by a 770 mW fiber-coupled laser diode.

Published in:

Photonics Technology Letters, IEEE  (Volume:9 ,  Issue: 6 )