Optical waveguides – With optical coupler – With alignment device
Reexamination Certificate
2008-06-18
2009-06-02
Font, Frank G (Department: 2883)
Optical waveguides
With optical coupler
With alignment device
C385S031000, C385S033000, C385S039000, C385S051000, C385S129000, C385S130000, C385S131000
Reexamination Certificate
active
07542643
ABSTRACT:
An optical assembly includes a waveguide assembly and an optical coupling element. The waveguide assembly includes a core, a cladding portion, and, preferably, at least two waveguide core fiducials, the at least two waveguide core fiducials and the core being lithographically formed substantially simultaneously in a substantially coplanar layer. The core and the at least two waveguide core fiducials are formed in a predetermined relationship with the cladding portion. The optical coupling element (for example, a lens array or mechanical transfer (MT) ferrule), includes an optical element and, preferably, at least two alignment features associated with the optical element, the at least two alignment features being mated with the at least two waveguide core fiducials to accurately position the optical element with respect to the core in an X-Y plane A method of alignment is also provided.
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Budd Russell A.
Chiniwalla Punit
Hobbs Philip C. D.
Libsch Frank R.
Font Frank G
International Business Machines - Corporation
Lepisto Ryan
Morris, Esq. Daniel P.
Ryan & Mason & Lewis, LLP
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