Analysis of laser-amplifier noise: A review of the method and its application to optical communications
This study summarizes the theory of laser-amplifier noise based on the master equation, the quantum-mechanical Langevin equation, and the rate equation. The three approaches are used differently depending on the application. Laser-amplifier noise in the direct-detection receiver is described by the master equation. Meanwhile, the quantum-mechanical Langevin equation is most effective for analyzing noise appearing in coherent optical communication systems. The rate equation approach provides a clear understanding of the intensity-noise characteristics of laser oscillators, including the amplitude squeezing.
Email Address of Submitting Authorkikuchi0306@g.ecc.u-tokyo.ac.jp
ORCID of Submitting Author0000-0002-6115-1406
Submitting Author's InstitutionIndependent Researcher
Submitting Author's Country