Simulation of multimode lasing in an electron-beam-controlled CO2laser with an unstable cavity under thermal self-action of radiation
| Autor: | P A Svotin, V G Naumov |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Multi-mode optical fiber business.industry Physics::Optics Statistical and Nonlinear Physics Radiation Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Gain-switching law.invention Transverse plane Optics law Thermal Cathode ray Optoelectronics Electrical and Electronic Engineering business Lasing threshold |
| Zdroj: | Quantum Electronics. 40:691-696 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | A numerical technique for calculating the time-dependent multimode lasing in an electron-beam-controlled CO2 laser at significant optical inhomogeneities caused by radiation self-action is presented. The reported calculations for subatmospheric pressure yield a sequence of involvement of transverse modes in lasing, the evolution of their characteristics (which is self-consistent with the evolution of gain and optical inhomogeneities of the active medium), and the exclusion of output modes from lasing. This calculation technique can be used when the radiation round-trip time around the cavity is shorter than the characteristic time of change in the active-medium characteristics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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