NORMALIZED INTENSITY VARIANCE OF A SINGLE-MODE LASER DRIVEN BY QUADRATIC PUMP NOISE

Author:

CAO LI12,WU DA-JIN12

Affiliation:

1. Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China

2. CCAST (World Laboratory), P. O. 100080, People's Republic of China

Abstract

A single-mode laser noise model driven by quadratic pump noise is proposed. The approximation Fokker–Planck equation (AFPE) and steady probability distribution of the laser intensity for the model are derived. It is found that the AFPE is symmetrical with respect to the sign of λ. This point leads to some symmetrical features for the statistical properties of the system. As an important application of the above-mentioned results, the normalized intensity variance NIV is derived. It is found that the NIV is controlled intensively by the cross-correlation between the real and imaginary parts of pump noise. For the NIV versus a curves an interest cross-correlation effect, the two directions of the NIV versus a curves, is found.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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