Analysis of a dynamical procedure on diode-end-pumped solid-state lasers
| Autor: | R. F. Wu, Siu-Chung Tam, Ernest Lau, Y. L. Lim, Yee-Loy Lam, Kin Seng Lai, Wenjie Xie |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
business.industry Slope efficiency Physics::Optics Laser pumping Injection seeder Condensed Matter Physics Laser Atomic and Molecular Physics and Optics Self-pulsation law.invention Optical pumping Optics law Physics::Atomic Physics Laser power scaling Electrical and Electronic Engineering business Lasing threshold |
| Zdroj: | IEEE Journal of Quantum Electronics. 37:1368-1372 |
| ISSN: | 0018-9197 |
| DOI: | 10.1109/3.952550 |
| Popis: | For solid-state lasers, we have determined that the overlap integrals V/sub th/, related to the threshold pump power, and V/sub slope/, related to the laser slope efficiency, dynamically change with pump power. The increase of diffraction loss is also caused by the dynamical change of the laser mode size, which alters the Fresnel number of the cavity. Subsequently, the threshold pump power and the laser slope efficiency also change dynamically. The dramatic increase of the laser mode radius at the laser crystal and the sudden decrease of the laser mode radius at the output mirror when operating near the stability limit make the laser output suddenly drop. A longer cavity will have a larger threshold pump power and a smaller total output power. |
| Databáze: | OpenAIRE |
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