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http://hdl.handle.net/2445/9363
Title: | Intensity correlation functions of dye lasers: Comparison of colored-gain-noise and colored-loss-noise models |
Author: | Noriega, J. M. Pesquera, L. Rodríguez Díaz, Miguel Ángel Casademunt i Viader, Jaume Hernández Machado, Aurora |
Keywords: | Làsers Fluctuacions (Física) Processos estocàstics Lasers Fluctuations (Physics) |
Issue Date: | 1991 |
Publisher: | The American Physical Society |
Abstract: | The intensity correlation functions C(t) for the colored-gain-noise model of dye lasers are analyzed and compared with those for the loss-noise model. For correlation times ¿ larger than the deterministic relaxation time td, we show with the use of the adiabatic approximation that C(t) values coincide for both models. For small correlation times we use a method that provides explicit expressions of non-Markovian correlation functions, approximating simultaneously short- and long-time behaviors. Comparison with numerical simulations shows excellent results simultaneously for short- and long-time regimes. It is found that, when the correlation time of the noise increases, differences between the gain- and loss-noise models tend to disappear. The decay of C(t) for both models can be described by a time scale that approaches the deterministic relaxation time. However, in contrast with the loss-noise model, a secondary time scale remains for large times for the gain-noise model, which could allow one to distinguish between both models. |
Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.44.2094 |
It is part of: | Physical Review A, 1991, vol. 44, núm. 3, p. 2094-2101. |
URI: | http://hdl.handle.net/2445/9363 |
Related resource: | http://dx.doi.org/10.1103/PhysRevA.44.2094 |
ISSN: | 1050-2947 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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