Optimization of Line-Focusing Geometry for Efficient Nonlinear Frequency Conversion from Copper-Vapor Lasers

David W. Coutts

doi:10.1109/3.477748

Optimization of Line-Focusing Geometry for Efficient Nonlinear Frequency Conversion from Copper-Vapor Lasers

David W. Coutts^*

^*Corresponding author for this work

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

39 Citations (Scopus)

87 Downloads (Pure)

Abstract

Detailed parametric investigations of line foci for efficient nonlinear frequency conversion of copper-vapor laser are presented. For a single medium-scale copper-vapor laser (nominally 20 W), the optimum focal geometry for efficient second-harmonic and sum-frequency generation in BBO is to focus a 3.75-mm-diameter beam into the crystal with an f = 60 mm cylindrical lens. Using such a focal geometry, UV powers of up to 1.75 W (SHG of the green), 1.2 W (SHG yellow), and 1.5 W (SFG) have been produced with peak instantaneous conversion efficiency of up to 48%. Conversion efficiencies are most sensitive to the F-number of the cylindrical focusing, with the optimum F-number being approximately 16, and are relatively insensitive to the width of the focused beam.

Original language	English
Pages (from-to)	2208-2214
Number of pages	7
Journal	IEEE Journal of Quantum Electronics
Volume	31
Issue number	12
DOIs	https://doi.org/10.1109/3.477748
Publication status	Published - 1995
Externally published	Yes

Bibliographical note

Copyright 1995 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 Universityâ€™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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Access to Document

10.1109/3.477748

Publisher version (open access).pdfFinal published version, 972 KB

Cite this

@article{a72e58b5fac34c4e96967c3a01f0358c,

title = "Optimization of Line-Focusing Geometry for Efficient Nonlinear Frequency Conversion from Copper-Vapor Lasers",

abstract = "Detailed parametric investigations of line foci for efficient nonlinear frequency conversion of copper-vapor laser are presented. For a single medium-scale copper-vapor laser (nominally 20 W), the optimum focal geometry for efficient second-harmonic and sum-frequency generation in BBO is to focus a 3.75-mm-diameter beam into the crystal with an f = 60 mm cylindrical lens. Using such a focal geometry, UV powers of up to 1.75 W (SHG of the green), 1.2 W (SHG yellow), and 1.5 W (SFG) have been produced with peak instantaneous conversion efficiency of up to 48%. Conversion efficiencies are most sensitive to the F-number of the cylindrical focusing, with the optimum F-number being approximately 16, and are relatively insensitive to the width of the focused beam.",

author = "Coutts, {David W.}",

note = "Copyright 1995 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{\^a}€{\texttrademark}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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.",

year = "1995",

doi = "10.1109/3.477748",

language = "English",

volume = "31",

pages = "2208--2214",

journal = "IEEE Journal of Quantum Electronics",

issn = "0018-9197",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

number = "12",

}

TY - JOUR

T1 - Optimization of Line-Focusing Geometry for Efficient Nonlinear Frequency Conversion from Copper-Vapor Lasers

AU - Coutts, David W.

N1 - Copyright 1995 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 Universityâ€™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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

PY - 1995

Y1 - 1995

N2 - Detailed parametric investigations of line foci for efficient nonlinear frequency conversion of copper-vapor laser are presented. For a single medium-scale copper-vapor laser (nominally 20 W), the optimum focal geometry for efficient second-harmonic and sum-frequency generation in BBO is to focus a 3.75-mm-diameter beam into the crystal with an f = 60 mm cylindrical lens. Using such a focal geometry, UV powers of up to 1.75 W (SHG of the green), 1.2 W (SHG yellow), and 1.5 W (SFG) have been produced with peak instantaneous conversion efficiency of up to 48%. Conversion efficiencies are most sensitive to the F-number of the cylindrical focusing, with the optimum F-number being approximately 16, and are relatively insensitive to the width of the focused beam.

AB - Detailed parametric investigations of line foci for efficient nonlinear frequency conversion of copper-vapor laser are presented. For a single medium-scale copper-vapor laser (nominally 20 W), the optimum focal geometry for efficient second-harmonic and sum-frequency generation in BBO is to focus a 3.75-mm-diameter beam into the crystal with an f = 60 mm cylindrical lens. Using such a focal geometry, UV powers of up to 1.75 W (SHG of the green), 1.2 W (SHG yellow), and 1.5 W (SFG) have been produced with peak instantaneous conversion efficiency of up to 48%. Conversion efficiencies are most sensitive to the F-number of the cylindrical focusing, with the optimum F-number being approximately 16, and are relatively insensitive to the width of the focused beam.

UR - http://www.scopus.com/inward/record.url?scp=0029505720&partnerID=8YFLogxK

U2 - 10.1109/3.477748

DO - 10.1109/3.477748

M3 - Article

AN - SCOPUS:0029505720

SN - 0018-9197

VL - 31

SP - 2208

EP - 2214

JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

IS - 12

ER -

Optimization of Line-Focusing Geometry for Efficient Nonlinear Frequency Conversion from Copper-Vapor Lasers

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this