Effect on Intensity Correlation Time by Input Signal in a Single-Mode Laser with Bias Signal Modulation |
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Authors: | CHEN;Li-Mei;CAO;Li;WU;Da-Jin;GE;Guo-Qin |
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Institution: | 1. Department of Physics, Shenzhen University, Shenzhen 518060, China
;2. State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China
;3. Department of Physics, Huazhong University of Science and
Technology, Wuhan 430074, China
;4. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China |
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Abstract: | The effect on intensity correlation time T by input signal is studied for
gain-noise model of a single-mode laser driven by colored pump noise and
colored quantum noise with colored cross-correlation with a bias signal
modulation in this paper. By using the linear approximation method, we
detect that there exists maximum (i.e., resonance) in the curve of the
intensity correlation time T upon bias current i0 when the noise
correlation coefficient λ is positive; and there exists minimum (i.e., suppression) in the T-i0 curve when λ is negative. And
when λ is zero, T increases monotonously with increasing i0. Furthermore, the curve of T upon the signal frequency Ω is also studied. Our study shows that no matter what the value of λ is,
there exists minimum (i.e., suppression) in the T-Ω curve. |
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Keywords: | intensity correlation time bias signal modulation linear approximation method |
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