High modulation rate microsecond pulses for micromachining using a planar waveguide CO2 laser amplifier

Quisheng Cao; Howard J. Baker; Denis R. Hall

doi:10.1117/12.414066

25 January 2001 High-modulation-rate microsecond pulses for micromachining using a planar waveguide CO₂ laser amplifier

Quisheng Cao, Howard J. Baker, Denis R. Hall

Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.414066
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

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.

Citation Download Citation

Quisheng Cao, Howard J. Baker, and Denis R. Hall "High-modulation-rate microsecond pulses for micromachining using a planar waveguide CO₂ laser amplifier", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.414066

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