Diode-laser edge-pumped Nd:YAG/YAG lens-shaped composite laser
| Autor: | Traian Dascalu, Nicolaie Pavel, Oana Valeria Grigore, Gabriela Croitoru |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Optical fiber
Materials science 02 engineering and technology 01 natural sciences law.invention 010309 optics 020210 optoelectronics & photonics Optics law 0103 physical sciences Diode-pumped solid-state laser 0202 electrical engineering electronic engineering information engineering Ceramic Electrical and Electronic Engineering Diode business.industry Slope efficiency Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Lens (optics) Core (optical fiber) visual_art visual_art.visual_art_medium Optoelectronics business |
| Zdroj: | Optics & Laser Technology |
| ISSN: | 0030-3992 |
| DOI: | 10.1016/j.optlastec.2017.03.018 |
| Popis: | A laser configuration made of a thin-disk Nd:YAG/YAG composite medium that consists of a circular Nd:YAG core bonded by diffusion to a circular undoped YAG and that has the shape of a plane-concave lens is presented. The pump is done through the undoped YAG edge, in a three-fold scheme, directly from the diode-laser optical fibers. Such a laser was built employing a Nd:YAG/YAG ceramics made of a 1.0-at.% Nd:YAG core of 2.0-mm diameter surrounded by a 10 mm in diameter YAG. The thickness was 180 μm at the center of Nd:YAG and 500 μm at the YAG edge. The Nd:YAG/YAG medium was attached to a water-cooled copper finger. At 2 Hz repetition rate the laser yielded pulses at 1.06 μm with energy Ep = 31.8 mJ under the pump at 807 nm with total energy Epump = 114.6 mJ; the slope efficiency was 0.31. A decrease of laser pulse energy with the repetition rate was observed. This indicates that a better thermal management, which could be made through metallic bonding of Nd:YAG/YAG to the cooling system, is necessary. |
| Databáze: | OpenAIRE |
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