Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2007-12-25
2007-12-25
Sanghavi, Hemang (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling function
C385S028000, C385S043000
Reexamination Certificate
active
11371891
ABSTRACT:
A system for transmitting the spatial profile of laser beams with particular applicability to coherently combine laser beams into one beam. The system includes a tapered waveguide with an inlet and outlet at ends of two waveguide elements each having a reflective surface facing into the waveguide. The reflective surfaces are non-parallel such that the inlet height is different than the outlet height, e.g., inlet height greater than outlet height. The system includes a beam input assembly controlling phases of laser beams input at the waveguide inlet, and the phases of the beams are locked to a substantially single phase. The waveguide length is selected to produce at the waveguide outlet a coherently combined laser beam from the input beams. The beam input assembly includes a laser beam source, a beam splitter generating lower power beams from source beams, and phase adjusters for controlling the phase of each input beam.
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Christensen Scott E.
McKinnie Iain T.
Unternahrer Josef Robert
Lockheed Martin Coherent Technologies, Inc.
McDermott Will & Emery LLP
Sanghavi Hemang
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