One Watt Average Power by Second Harmonic and Sum Frequency Generation from a Single Medium Scale Copper Vapor Laser

D. W. Coutts, J. A. Piper

Research output: Contribution to journalArticle

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Ultraviolet (UV) powers of over 1 W have been obtained by second harmonic and sum frequency generation from a single medium scale (20 W) copper vapor laser (CVL) using a new focal geometry in which the CVL beam is focused in only one direction to produce a line focus within a BBO crystal. High optical conversion efficiencies, 20 and 30%, are observed for the low divergence (~ 10 times the diffraction limit) and diffraction-limited components of the CVL output, respectively. Wall-plug efficiencies for UV generation are up to 0.04%. Efficient frequency conversion has also been demonstrated for CVL operating conditions unsuited to the generation of diffraction limited output.

Original languageEnglish
Pages (from-to)1761-1764
Number of pages4
JournalIEEE Journal of Quantum Electronics
Issue number8
Publication statusPublished - 1992


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Copyright 1992 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 By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

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