Squeezed Quantum-Beat Laser Without Inversion

Chin. Phys. Lett.

1998, Vol. 15

Issue (12): 880-882 DOI:

Original Articles

Squeezed Quantum-Beat Laser Without Inversion

HU Xiang-ming;PENG Jin-sheng

Department of Physics, Huazhong Normal University, Wuhan 430079

Cite this article:

HU Xiang-ming, PENG Jin-sheng 1998 Chin. Phys. Lett. 15 880-882

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Abstract A quantum-beat laser without inversion is proposed for producing two-mode suqeezing. Using the dressed-atom-dressed-mode approach, the master equation is derived and the variances in the sum mode intensity and in the relative amplitude and phase are calculated. When the laser is operated well above threshold, the intensity fluctuations in the sum mode are reduced below the shot noise limit with an optimum Mandel parameter of -0.5. At the same time, the fluctuations in the relative amplitude and phase are retained at their vaccum noise levels.

Keywords: 42.50.Ar 42.50.Lc 42.55.-f

Published: 01 December 1998

PACS:	42.50.Ar
	42.50.Lc	(Quantum fluctuations, quantum noise, and quantum jumps)
	42.55.-f	(Lasers)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1998/V15/I12/0880

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