Low cost, air cooled, 7 W 8 ns 60 kHz, infra-red laser for industrial marking application with doubling and tripling frequency module

Author

Cormont, Ph. ; Le Flanchec, V. ; Bonnefois, A. ; Thro, P.-Y. ; Weulersse, J.-M.

Author_Institution

DEN, CEA Saclay, Gif-sur-Yvette, France

fYear

2003

fDate

22-27 June 2003

Firstpage

49

Abstract

The objectives were to provide a low cost, air cooled and robust laser. Nd:YVO₄ crystal is now a current choice as a lasing material for diode-pumped solid state laser because of its high gain, high absorption and also linearly polarized output. However its poor thermal properties and its fragility, compared to Nd:YAG, are disadvantages for industrial applications. Composite crystals with adhesive free bonding are good solutions to reduce thermal lensing and improve crystal robustness. Results obtained with a segmented Nd:YVO₄ crystals manufactured by FEE with a new technology bonding are presented and the advantages of this technology will be discussed.

Keywords

infrared sources; laser materials processing; neodymium; optical harmonic generation; optical materials; solid lasers; thermal lensing; vanadium compounds; yttrium compounds; 60 kHz; 7 W; 8 ns; FEE; Nd:YVO₄ crystal; YVO₄:Nd; adhesive free bonding; air cooling; composite crystals; crystal robustness; diode-pumped solid state laser; doubling frequency module; industrial marking application; infra-red laser; lasing material; thermal lensing reduction; tripling frequency module; Absorption; Bonding; Costs; Crystalline materials; Crystals; Diodes; Frequency; Optical materials; Robustness; Solid lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on

Print_ISBN

0-7803-7734-6

Type

conf

DOI

10.1109/CLEOE.2003.1312111

Filename

1312111