Nonlinear dynamics of intracavity difference-frequency generator pumped by a dual-wavelength semiconductor disk laser:  model of single-mode optical fields with strong time-delay feedback

Yuri A. Morozov

doi:10.1117/12.2519614

3 June 2019 Nonlinear dynamics of intracavity difference-frequency generator pumped by a dual-wavelength semiconductor disk laser: model of single-mode optical fields with strong time-delay feedback

Yuri A. Morozov

Author Affiliations +

Proceedings Volume 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling; 1106602 (2019) https://doi.org/10.1117/12.2519614
Event: International Symposium on Optics and Biophotonics VI: Saratov Fall Meeting 2018, 2018, Saratov, Russian Federation

Abstract

A time delay (TD) model of difference-frequency generation in a cavity of a dual-wavelength semiconductor disk laser has been derived. By using the model, the steady state operation point, its stability and transient dynamics of an intracavity difference-frequency generator are analyzed. The identical quantities have been also studied with the help of the normal mode expansion (NME) model. Both models result in steadiness of the steady state points for all parameter’s values taken in the simulations. However, the dynamics behaves in rather different manners: the TD model results in the long-lived quasi-periodic relaxation oscillations, while the NME model leads to the fast aperiodic transition to the same steady state point. The time period of the relaxation oscillations equals to the cavity round-trip time.

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Yuri A. Morozov "Nonlinear dynamics of intracavity difference-frequency generator pumped by a dual-wavelength semiconductor disk laser: model of single-mode optical fields with strong time-delay feedback", Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 1106602 (3 June 2019); https://doi.org/10.1117/12.2519614

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KEYWORDS

Quantum wells

Mirrors

Disk lasers

Semiconductor lasers

Semiconductors

Nonlinear crystals

Reflectivity

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