Quantum fluctuations and saturable absorption in mesoscale lasers

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.043827· OSTI ID:21544713

Roy-Choudhury, Kaushik ^[1]; Levi, A F. J. ^[1]

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1. Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484 (United States)

We present a quantum-mechanical treatment of fluctuations and saturable absorption in mesoscale lasers. The time evolution of the density matrix is obtained from numerical integration and field-field and intensity-intensity correlations are calculated to obtain steady-state linewidth and photon statistics. Inclusion of a saturable absorber in the otherwise homogeneous medium is shown to suppress lasing, increase fluctuations, and enhance spontaneous emission near threshold.

• OSTI ID: 21544713
• Journal Information: Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.043827; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABSORPTION
CORRELATIONS
DENSITY MATRIX
EMISSION
FLUCTUATIONS
LASERS
LINE WIDTHS
PHOTONS
QUANTUM MECHANICS
STATISTICS
STEADY-STATE CONDITIONS
BOSONS
ELEMENTARY PARTICLES
MASSLESS PARTICLES
MATHEMATICS
MATRICES
MECHANICS
SORPTION
VARIATIONS