FIBRE LASER WITH INTRA-CAVITY FREQUENCY DOUBLING

FIBRE LASER WITH INTRA-CAVITY FREQUENCY DOUBLING

The invention disclosed herein relates to fibre lasers with intra-cavity frequency doubling. In one embodiment, the invention is directed to a Fibre laser with intra-cavity frequency doubling characterized in that a non-linear crystal (NC) of type II phase matching is used to thereby enable operatio...

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Hauptverfasser: BABIN, SERGEI ALEXEEVICH, KABLUKOV, SERGEI IVANIVICH, AKULOV, VLADIMIR ALEXANDROVICH, CHURKIN, DMITRY VLADIMIROVICH
Format: Patent
Sprache:eng ; fre
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BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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creator BABIN, SERGEI ALEXEEVICH
KABLUKOV, SERGEI IVANIVICH
AKULOV, VLADIMIR ALEXANDROVICH
CHURKIN, DMITRY VLADIMIROVICH
description The invention disclosed herein relates to fibre lasers with intra-cavity frequency doubling. In one embodiment, the invention is directed to a Fibre laser with intra-cavity frequency doubling characterized in that a non-linear crystal (NC) of type II phase matching is used to thereby enable operation of the fibre laser without selection of polarisation of the generated fundamental radiation. The non-linear crystal (NC) is oriented so as to minimise the walk-off angle of the second harmonic radiation, and a second dichroic mirror (M2) together with one of a plurality of focusing elements (L3) forms a telescopic reflector (L3, M2) that provides for focusing and compensation of the spatial walk-off effect of the non-linear crystal (NC).
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subjects BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
title FIBRE LASER WITH INTRA-CAVITY FREQUENCY DOUBLING
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