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Title:
INTRACAVITY FREQUENCY CONVERSION OF LASER RADIATION
Document Type and Number:
WIPO Patent Application WO2003026081
Kind Code:
A3
Abstract:
A laser device with frequency conversion, the device comprising a complex optical cavity comprising two cavity parts with two different levels of circulating intracavity power wherein there is placed at least one non-linear crystal (30) is placed within the cavity part of higher circulating power and an active medium (21) in the cavity part of lower circulating power, the power enhancement achieved in two steps and the total enhancement being the product of the enhancement factors in each step, providing additional freedom in design allowing both the condition for high enhancement of the interacting laser power inside the intracavity non-linear crystal and the condition for maximum power output from the laser to be satisfied simultaneously and wher in said complex optical cavity the first cavity part provides the initial step of power enhancement and comprises at least a laser cavity back mirror (20), highly reflective about a laser radiation fundamental frequency &omega, and an active (gain) medium.

Inventors:
KARPUSHKO FEDOR V (DE)
Application Number:
PCT/GB2002/004307
Publication Date:
February 26, 2004
Filing Date:
September 20, 2002
Export Citation:
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Assignee:
KARPUSHKO FEDOR V (DE)
International Classes:
G02F1/37; G02F1/35; H01S3/109; H01S3/081; (IPC1-7): H01S3/081; H01S3/082
Foreign References:
US6167068A2000-12-26
US6327281B12001-12-04
Other References:
VITUSHKIN L F ET AL: "NONLINEAR EFFECTS IN THE ACTIVE MEDIUM OF LASERS AND THE MEASUREMENTS OF SMALL DISPLACEMENTS", OPTICS AND SPECTROSCOPY, AMERICAN INSTITUTE OF PHYSICS. WASHINGTON, US, vol. 59, no. 5, 1 November 1985 (1985-11-01), pages 659 - 662, XP000712738, ISSN: 0030-400X
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