Acousto-optical Q-switched cw Nd:YAG laser: new approach to endoscopic palliative treatment of gastrointestinal tract tumors

Ladislav Horak; Jan Marek; V. Mandys

doi:10.1117/12.147511

7 July 1993 Acousto-optical Q-switched cw Nd:YAG laser: new approach to endoscopic palliative treatment of gastrointestinal tract tumors

Ladislav Horak, Jan Marek, V. Mandys

Author Affiliations +

Proceedings Volume 1892, Medical Lasers and Systems II; (1993) https://doi.org/10.1117/12.147511
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The acousto-optical Q-switched (AOQ) laser is a modification of the continuous-wave (cw) Nd:YAG laser with a quartz Q-switch modulator mounted into a laser resonator. The modulator is driven by a signal of 27.12 MHz of high frequency generation modulated by low frequency in the range of 200 to 500 kHz. Modulation causes the generation of high-peak power pulses in the kilowatts. Pulse durations are hundreds of nanoseconds, and the repetition rate depends on modulation frequency.

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Ladislav Horak, Jan Marek, and V. Mandys "Acousto-optical Q-switched cw Nd:YAG laser: new approach to endoscopic palliative treatment of gastrointestinal tract tumors", Proc. SPIE 1892, Medical Lasers and Systems II, (7 July 1993); https://doi.org/10.1117/12.147511

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