LASER AMPLIFIER
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United States of America Patent
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Sep 16, 2021
app pub date -
May 27, 2021
filing date -
Jan 8, 2019
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Abstract
A laser amplifier includes a planar optical waveguide for laser amplification, and an input optical system for inputting signal light to a core layer of the planar optical waveguide. The input optical system includes: a collimating lens for converting output light from a signal light source into parallel light; an anamorphic prism for reducing the beam width in a first direction of output light from the collimating lens; and a cylindrical lens for collecting output light from the anamorphic prism in a second direction, and output light from the cylindrical lens is input to the core layer.
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