Diagrammatic semiclassical laser theory

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.023822· OSTI ID:21408322

Zaitsev, Oleg ^[1]; Deych, Lev ^[2]

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1. Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany)
2. Physics Department, Queens College of City University of New York, Flushing, New York 11367 (United States)

We derive semiclassical laser equations valid in all orders of nonlinearity. With the help of a diagrammatic representation, the perturbation series in powers of electric field can be resummed in terms of a certain class of diagrams. The resummation makes it possible to take into account a weak effect of population pulsations in a controlled way while treating the nonlinearity exactly. The proposed laser theory reproduces the all-order nonlinear equations in the approximation of constant population inversion and the third-order equations with population-pulsation terms as special cases. The theory can be applied to arbitrarily open and irregular lasers, such as random lasers.

• OSTI ID: 21408322
• Journal Information: Physical Review. A, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevA.81.023822; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
DIAGRAMS
DISTURBANCES
ELECTRIC FIELDS
EQUATIONS
LASERS
NONLINEAR PROBLEMS
PERTURBATION THEORY
POPULATION INVERSION
PULSATIONS
RANDOMNESS
SEMICLASSICAL APPROXIMATION
APPROXIMATIONS
CALCULATION METHODS
INFORMATION