Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-06-14
2008-09-23
Font, Frank G (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling structure
C385S146000, C362S551000
Reexamination Certificate
active
07428356
ABSTRACT:
A polygonal shape inverted “Y” optical beam splitter for splitting input light into two, equal intensity, homogenous light beams. A one-piece hollow tubular body is provided having a first, second, and third leg. Each leg has a polygonal cross-section and a highly reflective interior surface. The first leg is configured to receive an input light beam having an intensity and spectral content that is reflected within the first leg to provide a first leg output light beam. The first leg output light beam is split and reflected into a second and third leg to provide, after reflection in the second leg and the third leg, a second leg and third leg output light beam. Each of the second leg and third leg output light beam has a homogeneous top hat profile and an intensity equal to one half of the intensity of the input light beam.
REFERENCES:
patent: 7113684 (2006-09-01), Cianciotto et al.
patent: 2005/0135766 (2005-06-01), Cianciotto et al.
Font Frank G
Glanzman Gerald H.
Gumpel Charles S.
Mooney Michael P
The Boeing Company
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