PLANAR WAVEGUIDE LASER DEVICE

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...

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Bibliographic Details
Main Authors YANAGISAWA, Takayuki, WATANABE, Yojiro, SHOHDA, Fumio
Format Patent
LanguageEnglish
Published 16.05.2019
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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Summary: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).
Bibliography:Application Number: US201616307209