Optical bistability in gaussian inhomogeneously broadened ring lasers with saturable absorber |
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| Authors: | Phung Quoc Bao Dinh Van Hoang Vu Van Luc |
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| Affiliation: | (1) Department of Physics, College of Natural Sciences, Hanoi National University, 334 Nguyen Trai Road, Hanoi, Vietnam;(2) P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii Pr. 53, 117924 Moscow, Russia;(3) Institute of Material Science, Vietnam National Centre for Natural Science and Technology, Nghia Do, Tu Liem, Hanoi, Vietnam |
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| Abstract: | The optical bistability (OB) in Gaussian inhomogeneously broadened ring lasers with saturable absorber (LSA) in both resonance and out-of-resonance is theoretically analyzed in the rate-equation approximation based on the dual two-level model. The OB effect may appear for appropriate sets of LSA control parameter values which can be displayed in phase diagrams. The characteristics of the OB curves as well as their stability behavior are analytically and numerically studied in detail. The influence of the control parameters, including detuning, are investigated and displayed in the figures. A brief comparison with the Lorentzian case is given as well. Paper submitted by authors in English April 20, 1999. |
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