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

Q. Cao; H. J. Baker; D. R. Hall

doi:10.1117/12.414066

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

Q. Cao, H. J. Baker, D. R. Hall

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

A 7-pass, master oscillator and power amplifier CO₂ laser system is reported using planar waveguide structures. An acousto-optic modulator between oscillator and amplifier is shown to introduce thermal lens effects that modify the mode-matching Amplification of pulse 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 ~550 kHz.

Original language	English
Pages (from-to)	266-269
Number of pages	4
Journal	Proceedings of SPIE - the International Society for Optical Engineering
Volume	4184
DOIs	https://doi.org/10.1117/12.414066
Publication status	Published - 2001
Event	XIII International Symposium on Gas Flow and Chemical Lasers - Florence, Italy Duration: 18 Sept 2000 → 22 Sept 2000

Keywords

Acousto-optic modulation
Carbon dioxide lasers
Gain measurement
Gas discharges
Laser amplifiers
Planar waveguides

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abstract = "A 7-pass, master oscillator and power amplifier CO2 laser system is reported using planar waveguide structures. An acousto-optic modulator between oscillator and amplifier is shown to introduce thermal lens effects that modify the mode-matching Amplification of pulse 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 ~550 kHz.",

keywords = "Acousto-optic modulation, Carbon dioxide lasers, Gain measurement, Gas discharges, Laser amplifiers, Planar waveguides",

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AU - Baker, H. J.

AU - Hall, D. R.

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N2 - A 7-pass, master oscillator and power amplifier CO2 laser system is reported using planar waveguide structures. An acousto-optic modulator between oscillator and amplifier is shown to introduce thermal lens effects that modify the mode-matching Amplification of pulse 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 ~550 kHz.

AB - A 7-pass, master oscillator and power amplifier CO2 laser system is reported using planar waveguide structures. An acousto-optic modulator between oscillator and amplifier is shown to introduce thermal lens effects that modify the mode-matching Amplification of pulse 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 ~550 kHz.

KW - Acousto-optic modulation

KW - Carbon dioxide lasers

KW - Gain measurement

KW - Gas discharges

KW - Laser amplifiers

KW - Planar waveguides

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DO - 10.1117/12.414066

M3 - Article

SN - 1996-756X

VL - 4184

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EP - 269

JO - Proceedings of SPIE - the International Society for Optical Engineering

JF - Proceedings of SPIE - the International Society for Optical Engineering

T2 - XIII International Symposium on Gas Flow and Chemical Lasers

Y2 - 18 September 2000 through 22 September 2000

ER -

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

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