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

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 circu...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 9; no. 6; pp. 740 - 742
Main Authors Chen, Y.F., Kao, C.F., Huang, T.M., Wang, C.L., Lee, L.J., Wang, S.C.
Format Journal Article
LanguageEnglish
Published IEEE 01.06.1997
Subjects
Diodes
Fiber lasers
Laser beams
Laser excitation
Laser modes
Laser stability
Lenses
Optical resonators
Pump lasers
Thermal lensing
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Summary: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.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.584975