General Laser Intensity Langevin Equation in a Single-Mode
Laser Model
KE Sheng-Zhi1,3, CAO Li1,2,3, WU Da-Jin2,3, YAO Kai-Lun1,2,3
1State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074
2CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
3Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
General Laser Intensity Langevin Equation in a Single-Mode
Laser Model
KE Sheng-Zhi1,3;CAO Li1,2,3;WU Da-Jin2,3;YAO Kai-Lun1,2,3
1State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074
2CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
3Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
Abstract： A two-dimensional single-mode laser model with cross-correlations between the real and imaginary parts of the quantum noise as well as the pump noise is investigated. The general closed form of the laser intensity Langevin equation (GILE) is obtained under a stable locked phase resulting from the cross-correlation λq between the real and imaginary parts of the quantum noise. Because of the presence of a new term containing λq, we can unify the two opposite intensity Langevin equations which correspond to the two special cases for |λq| → 0 and |λq| → 1 in the GILE. It is expected that the transient and stationary properties of the laser model can be changed qualitatively when λq varies.
KE Sheng-Zhi;CAO Li;;WU Da-Jin;YAO Kai-Lun;. General Laser Intensity Langevin Equation in a Single-Mode
Laser Model[J]. 中国物理快报, 2001, 18(3): 370-372.
KE Sheng-Zhi, CAO Li, , WU Da-Jin, YAO Kai-Lun,. General Laser Intensity Langevin Equation in a Single-Mode
Laser Model. Chin. Phys. Lett., 2001, 18(3): 370-372.
2001, Vol. 18 
