Planar waveguide laser device
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United States of America Patent
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Apr 28, 2020
Grant Date -
May 16, 2019
app pub date -
Jul 28, 2016
filing date -
Jul 28, 2016
priority date (Note) -
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Abstract
In a planar waveguide laser device (1), a substrate (6) is joined to the upper surface of a waveguide (2). A recess (6a) having a chamfered shape is formed along an edge of an end facet of the substrate (6) on the side of the waveguide (2), the end facet being perpendicular to the direction of laser oscillation. An end facet of the waveguide (2) perpendicular to the oscillation direction of laser light is covered with a coating (7). A wraparound portion (7a) continuing from the coating (7) covers the upper surface of the waveguide (2) facing the recess (6a) of the substrate (6).
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