Influence of off-axis unstable resonator alignment on copper vapour laser output divergence

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The influence of the off-axis unstable resonator alignment on the temporally evolving far-field intensity profile from a copper vapour laser is investigated. For optimum output power, the moderate divergence (four-pass) component produces an annular far-field intensity profile corresponding to an image of the spontaneous emission seed source. By adjusting the resonator alignment, one side of the annular image may be vignetted due to the resonator geometry resulting in a crescent-shaped far-field profile with significantly lower beam divergence and only a small (5%) reduction in output power.

LanguageEnglish
Pages283-291
Number of pages9
JournalOptics Communications
Volume113
Issue number1-3
DOIs
Publication statusPublished - 15 Dec 1994

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laser outputs
far fields
Copper
Resonators
divergence
resonators
Vapors
alignment
vapors
copper
Lasers
profiles
output
Spontaneous emission
spontaneous emission
Seed
seeds
adjusting
Geometry
geometry

Cite this

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abstract = "The influence of the off-axis unstable resonator alignment on the temporally evolving far-field intensity profile from a copper vapour laser is investigated. For optimum output power, the moderate divergence (four-pass) component produces an annular far-field intensity profile corresponding to an image of the spontaneous emission seed source. By adjusting the resonator alignment, one side of the annular image may be vignetted due to the resonator geometry resulting in a crescent-shaped far-field profile with significantly lower beam divergence and only a small (5{\%}) reduction in output power.",
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Influence of off-axis unstable resonator alignment on copper vapour laser output divergence. / Coutts, David W.

In: Optics Communications, Vol. 113, No. 1-3, 15.12.1994, p. 283-291.

Research output: Contribution to journalArticleResearchpeer-review

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