Design of micro-second pulsed laser mode for ophthalmological CW self-raman laser

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

doi:10.1117/12.873136

3 March 2011 Design of micro-second pulsed laser mode for ophthalmological CW self-raman laser

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

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Proceedings Volume 7912, Solid State Lasers XX: Technology and Devices; 79121Y (2011) https://doi.org/10.1117/12.873136
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

This work presents the mechanisms adopted for the design of micro-second pulsed laser mode for a CW Self-Raman laser cavity in 586nm and 4W output power. The new technique for retina disease treatment discharges laser pulses on the retina tissue, in laser sequences of 200 μs pulse duration at each 2ms. This operation mode requires the laser to discharge fast electric pulses, making the system control velocity of the electronic system cavity vital. The control procedures to keep the laser output power stable and the laser head behavior in micro-second pulse mode are presented.

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Alessandro D. Mota, Giuliano Rossi, Tiago A. Ortega, Glauco Z. Costal, Yuri C. Fontes, Fatima M. M. Yasuoka, Mario A. Stefani, Jarbas C. de Castro N., and Maria S. V. Paiva "Design of micro-second pulsed laser mode for ophthalmological CW self-raman laser", Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79121Y (3 March 2011); https://doi.org/10.1117/12.873136

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KEYWORDS

Control systems

Pulsed laser operation

Semiconductor lasers

Laser resonators

Diodes

Continuous wave operation

Retina

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