Time evolution of the intensity correlation function in a single-mode laser driven by both the coloured pump noise with signal modulation and the quantum noise with cross-correlation between the real and imaginary parts

• 来源期刊: 中国物理(英文版)
• 关键词: noise single-mode laser intensity correlation function
• 年，卷（期）: 2005,（6）
• 页码范围: 1159-1167
• 页数: 9页
• 语种: 英文

摘要

Using the linear approximation, we have studied the time evolution of intensity correlation function C(t) in a single-mode laser driven by both the coloured pump noise with signal modulation and the quantum noise with crosscorrelation between its real and imaginary parts. In the case of the pump noise with self-correlation time τ < 1, we find that the time evolution of C(t) varies with modulation signal frequencyΩ, amplitude B, and net gain a0. (i) As Ωincreases, the time evolution of C(t) changes from monotonically descending to flat descending, and finally to damply oscillating; (ii) as B increases, it changes from monotonically descending to maximal; (iii) as net gain a0increases, it changes repeatedly from monotonically descending to monotonically ascending, and to maximal, finally to monotonically descending again. However, in the case of τ > 1, the time evolution of C(t) only exhibits a form of damping oscillation.