200 mW average power UV generation at 0.193 /spl mu/m in K/sub 2/Al/sub 2/B/sub 2/O/sub 7/

Author

Kato, K. ; Takaoka, E. ; Umemura, N. ; Zhang-Gui Hu ; Yoshimura, M. ; Mori, T. ; Sasaki, T.

Author_Institution

Dept. of Electr. Eng., Osaka Univ., Japan

fYear

2002

fDate

24-24 May 2002

Abstract

Summary form only given. We report the first attainment of UV generation at 0.193 /spl mu/m in KAB. This was achieved by mixing the Nd:YAG laser at 1.0642 /spl mu/m with the SFG output of the RTA OPO tuned to 0.2358 /spl mu/m. The average output power we generated at 0.2358 /spl mu/m was 0.8 W at 10 KHz. Since the polarization direction of the 0.2358 /spl mu/m beam differs 45/spl deg/ from the Nd:YAG laser fundamental beam, a 45/spl deg/ polarization rotator was placed in the Nd:YAG laser beam to coincide with the polarization directions before entering the KAB crystal. The system described has been routinely operating for more than 6 months without any damage to the KAB crystal, thus demonstrating the attractiveness of this material for UV generation below 0.2 /spl mu/m.

Keywords

aluminium compounds; light polarisation; optical frequency conversion; potassium compounds; ultraviolet sources; 0.193 micron; 0.2358 micron; 0.8 W; 1.0642 micron; 200 mW; 6 month; K/sub 2/Al/sub 2/B/sub 2/O/sub 7/; Nd:YAG laser; RTA OPO; RbTiOAsO/sub 4/; SFG output; UV generation; YAG:Nd; YAl5O12:Nd; average output power; polarization directions; polarization rotator; Laser beams; Laser excitation; Laser modes; Laser tuning; Nonlinear optics; Optical harmonic generation; Optical materials; Power generation; Pulse generation; Pump lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-706-7

Type

conf

DOI

10.1109/CLEO.2002.1034047

Filename

1034047