Published February 2003
| Version v1
Journal article
YAG laser performance improved by stimulated Brillouin scattering phase conjugation mirror in thomson scattering diagnostics at JT-60
Creators
- 1. Osaka Univ., Institute of Laser Engineering, Suita, Osaka (Japan)
- 2. Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment
Description
An improvement of the output energy of a multistage YAG laser system by using a stimulated Brillouin scattering (SBS) phase conjugation mirror (PCM) was achieved. The phase conjugation of the optically nonlinear SBS process in a liquid material effectively compensated thermal degradation at an average/peak power amplifier, resulting in an average power increase from 1.5 J at 30 Hz repetition rate to 2.6 J at 50 Hz drive. The beam quality was also recovered without wave front deformation and depolarization resulting in a transfer-limited divergence with a good flat-top pattern in a near field. (author)
Additional details
Publishing Information
- Journal Title
- Japanese Journal of Applied Physics. Part 1, Regular Papers, Short Notes and Review Papers
- Journal Volume
- 42
- Journal Issue
- 2A
- Journal Page Range
- p. 439-442
- ISSN
- 0021-4922
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 34040020
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ALUMINIUM OXIDES; AMPLIFICATION; BRILLOUIN EFFECT; FERRITE GARNETS; JT-60U TOKAMAK; OPTICAL SYSTEMS; PLASMA DIAGNOSTICS; SOLID STATE LASERS; STIMULATED EMISSION; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; CLOSED PLASMA DEVICES; COHERENT SCATTERING; EMISSION; ENERGY-LEVEL TRANSITIONS; LASERS; MINERALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- 22 refs., 5 figs., 1 tab.