Beam narrowing by a saturable absorber in a Nd:YAG laser
| Autor: | Nathalie McCarthy, Michel Piché, Alain Chandonnet |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Materials science
business.industry Physics::Optics Saturable absorption Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Resonator Optics law Optical cavity Nd:YAG laser Transmittance Physics::Accelerator Physics Laser beam quality Electrical and Electronic Engineering Physical and Theoretical Chemistry business Beam (structure) |
| Zdroj: | Optics Communications. 75:123-128 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/0030-4018(90)90240-t |
| Popis: | The insertion of a saturable absorber in a laser resonator sustaining a fundamental mode of gaussian shape is shown to create an apodizing element with a nearly gaussian transmittance. A simple analysis predicts that such an element has little effect on the beam waist of a stable resonator, but leads to a significant narrowing of the beam produced by an unstable resonator equipped with a variable reflectivity mirror. Experimental results obtained with a Nd:YAG laser confirm the prediction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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