## Investigation of the characteristics of the intensity noise of singly resonant active second-harmonic generation

JOSA B, Vol. 17, Issue 10, pp. 1695-1703 (2000)

http://dx.doi.org/10.1364/JOSAB.17.001695

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### Abstract

We derive analytical expressions for the quantum-noise spectra of a singly resonant active frequency-doubling laser with single-frequency operation by using a linearized input–output method. For operation of a practical solid-state laser, we analyze separately the contributions of the various noise sources to the final spectrum. The change in resonance in the spectrum from an overdamped- (at higher μ) to an underdamped- (at smaller μ) driven second-order oscillator where μ is the nonlinear coupling coefficient, was experimentally observed with a diode-pumped Nd:YVO<sub>4</sub>+KTP single-frequency-doubling laser. The experimental result is in good agreement with the theoretical expectation.

© 2000 Optical Society of America

**OCIS Codes**

(270.5290) Quantum optics : Photon statistics

**Citation**

Jing Zhang, Yanli Cheng, Tiancai Zhang, Kuanshou Zhang, Changde Xie, and Kunchi Peng, "Investigation of the characteristics of the intensity noise of singly resonant active second-harmonic generation," J. Opt. Soc. Am. B **17**, 1695-1703 (2000)

http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-10-1695

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