Strategies to run an ophthalmological CW Self-Raman laser in micro-second pulsed laser regime

Author

Mota, Alessandro D. ; Rossi, Giuliano ; Ortega, Tiago A. ; Costal, Glauco Z. ; Fontes, Yuri C. ; Yasuoka, Fatima M M ; Stefani, Mario A. ; De Castro N, Jarbas C. ; Paiva, Maria S V

Author_Institution

Opto Eletron. S/A, Sao Carlos, Brazil

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

Strategies to run an ophthalmological CW self-Raman laser in micro-second pulsed laser regime is reported. The laser cavity in 586nm and 4W CW output power is based on Self-Raman conversion in Nd:GdVO4. The cavity pulse time response was of 30μs (worst case) to reach a stable mode. Thermal lens effects are also investigated. It causes performance differences between CW and micro-pulse mode operation, and laser cavity alignment pulse regime is responsible to favor one mode. This work resulted in a commercial ophthalmic laser.

Keywords

Raman lasers; eye; gadolinium compounds; laser applications in medicine; laser cavity resonators; laser modes; neodymium; optical pulse generation; solid lasers; thermal lensing; GdVO₄:Nd; laser cavity; micropulse mode operation; microsecond pulsed laser mode; ophthalmic laser; ophthalmological CW self-Raman laser; power 4 W; thermal lens; wavelength 586 nm; Cavity resonators; Laser modes; Power generation; Power lasers; Pump lasers; Semiconductor lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5942541

Filename

5942541