Optical beam steering for tunable laser applications
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United States of America Patent
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Jul 29, 2014
Grant Date -
Nov 27, 2008
app pub date -
Aug 8, 2008
filing date -
Feb 25, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A transmitter is disclosed including a laser array comprising a plurality of lasers spatially offset from one another and each having a laser output having a unique wavelength. A first prism is positioned to impart a first angular shift to the laser outputs to produce and a second prism is positioned to impart a second angular shift opposite the first angular shift on the outputs. An index modulating element is coupled to one of the first and second prisms and a controller is electrically coupled to the index modulating element to control an angle of light output form the second prism. An optical spectrum reshaper may be positioned between the second prism and the lens and have at least one transmission edge aligned with the wavelength at least one of the lasers.
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