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Proceedings Paper

High modulation rate microsecond pulses for micromachining using a planar waveguide CO2 laser amplifier
Author(s): Quisheng Cao; Howard J. Baker; Denis R. Hall
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Paper Abstract

A 7-pass, master oscillator and power amplifier CO2 laser system is reported using planar waveguide structures. An acoustooptic modulator between oscillator and amplifier is shown to introduce thermal lens effects that modify the mode-matching. Amplification ofpulse bursts at 50 kHz in cw gain is presented, and gain saturation and recovery effects are demonstrated to pulses at a modulation rate up to ~55O kHz.

Paper Details

Date Published: 25 January 2001
PDF: 4 pages
Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); doi: 10.1117/12.414066
Show Author Affiliations
Quisheng Cao, Heriot-Watt Univ. (United Kingdom)
Howard J. Baker, Heriot-Watt Univ. (United Kingdom)
Denis R. Hall, Heriot-Watt Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 4184:
XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Antonio Lapucci; Marco Ciofini, Editor(s)

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