Multi-wavelength diode laser array
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United States of America Patent
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Aug 26, 2014
Grant Date -
May 16, 2013
app pub date -
May 7, 2012
filing date -
May 12, 2011
priority date (Note) -
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Abstract
A multi-wavelength laser array of a plurality of emitters in a diode bar or stack where each beam is deflected by a different angle to be incident upon a uniform volume holographic grating with a portion of the beam being deflected as a feedback portion while a further portion provides a wavelength tuned output unique to each emitter. The arrangement of a uniform volume holographic grating with deflectors such as phaseplates eliminates the need to use expensive wavelength chirped gratings.
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