Advanced multichannel laser systems with phase conjugation and interchannel phase locking by laser-gain-hologram long- and short-range coupling
| Autor: | Andrey V. Gavrilov, A. V. Fedin, Sergei N. Smetanin |
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| Rok vydání: | 2009 |
| Předmět: |
Distributed feedback laser
Materials science business.industry Gain Holography Physics::Optics Condensed Matter Physics Laser Industrial and Manufacturing Engineering Atomic and Molecular Physics and Optics law.invention Optics law Physics::Atomic Physics Laser power scaling Photonics Phase conjugation business Instrumentation Lasing threshold |
| Zdroj: | Laser Physics. 19:1117-1124 |
| ISSN: | 1555-6611 1054-660X |
| DOI: | 10.1134/s1054660x09050405 |
| Popis: | Compact schemes of the phase-locked multichannel Nd:YAG laser system with the long- and shortrange coupling via the holographic gain gratings in the active elements are developed. The phase locking of various loop Nd:YAG lasers with an interference contrast of the laser channels of 0.50–0.87 and a single-mode lasing efficiency of up to 0.64% is experimentally demonstrated. The experimental results for the two- and three-channel laser systems are generalized on multichannel laser systems using the numerical simulation. It is demonstrated that the maximum number of the short-range-coupled laser channels can be increased owing to the leveling of the parameters of laser channels to a value that is greater than that the maximum number of the channels in the presence of the long-range coupling, which is limited by the damage threshold of the active element of the interchannel coupling. |
| Databáze: | OpenAIRE |
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