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Optics Letters

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  • Vol. 23, Iss. 3 — Feb. 1, 1998
  • pp: 195–197

Demonstration of long-term reliability of a 266-nm, continuous-wave, frequency-quadrupled solid-state laser using β-BaB2O4

K. Kondo, M. Oka, H. Wada, T. Fukui, N. Umezu, K. Tatsuki, and S. Kubota  »View Author Affiliations


Optics Letters, Vol. 23, Issue 3, pp. 195-197 (1998)
http://dx.doi.org/10.1364/OL.23.000195


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Abstract

We report what we believe to be the first operation of more than 1000 h of a 266-nm (cw) frequency-quadrupled solid-state laser with a 100-mW output. We used β-BaB2O4(BBO) crystal grown by the Czochralski method to double the green-light (532-nm) wavelength, using an external resonant cavity. The green light was generated with an intracavity frequency-doubled Nd:YVO4laser pumped by a 4-W laser diode. When the incident 532-nm power on the external resonant doubler was 500 mW, we generated 100 mW of cw 266-nm radiation with the BBO crystal. The degradation rate seems to be proportional to the strength of the UV optical electric field. We also obtained a relative intensity noise of -130dB/Hz at frequencies of 2 to 10 MHz for 266-nm laser light.

© 1998 Optical Society of America

OCIS Codes
(040.7190) Detectors : Ultraviolet
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.0190) Nonlinear optics : Nonlinear optics

Citation
K. Kondo, M. Oka, H. Wada, T. Fukui, N. Umezu, K. Tatsuki, and S. Kubota, "Demonstration of long-term reliability of a 266-nm, continuous-wave, frequency-quadrupled solid-state laser using β-BaB2O4," Opt. Lett. 23, 195-197 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-3-195


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References

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