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Efficient generation of near diffraction-limited beam-quality output from medium-scale copper vapor laser oscillators

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/109399

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Title: Efficient generation of near diffraction-limited beam-quality output from medium-scale copper vapor laser oscillators
Related: IEEE journal of quantum electronics, Vol. 34, Issue 3 (1998), p.419-426
DOI: 10.1109/3.661448
Publisher: Institute of Electrical and Electronics Engineers
Date: 1998
Author/Creator: Kapitan, D
Author/Creator: Coutts, D. W
Author/Creator: Webb, C. E
Description: Operation of copper vapor lasers (CVL's) using on-axis unstable resonators with very high magnifications M is characterized. A single medium-scale device (1-m-long, 25-mm-diameter bore) with M=360 is capable of delivering 10 W of high-beam-quality (HBQ) output with a divergence of less than two times the diffraction limit at a wall-plug efficiency of 0.5%. The enhanced performance is achieved by tailoring the radial profiles of the initial amplified spontaneous emission (ASE) seed and gain, by means of varying the total neon buffer gas pressure, the partial hydrogen (H₂) content of the buffer gas, and power loading of the laser head. The degree of insulation of the plasma tube is found to be an important design criterium for optimizing the HBQ performance. These results indicate that efficient generation of HBQ output from medium-scale CVL's requires both a high degree of thermal insulation and operation at high buffer gas pressures with ambient H₂ concentrations of the order of 1%.
Description: 8 page(s)
Resource Type: journal article
Organisation: Macquarie University. Dept. of Physics and Astronomy

Identifier: http://hdl.handle.net/1959.14/109399
Identifier: ISSN:0018-9197
Identifier: mq-rm-2006008607
Language: eng
Rights: Copyright 1998 IEEE. Reprinted from IEEE journal of quantum electronics. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Macquarie University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
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