Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-02-08
2005-02-08
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S147000
Reexamination Certificate
active
06853767
ABSTRACT:
Manufacturing coupling elements that have two or more ports. A focusing lens array is attached with a collimating lens array to form an element array such that each focusing lenslet is opposite a collimating lenslet. Optionally, an optical element such as a beam splitter is included between the focusing lens array and the collimating lens array. The individual coupling elements are then cut from the element array. After a row of coupling elements is cut or separated from the element array, a side of the exposed optical element can be polished and a third row of lenslets can be attached to the polished side of the optical element before the row is cut into individual coupling elements. This provides a third port to the coupling elements or optical transceivers.
REFERENCES:
patent: 6118910 (2000-09-01), Chang
patent: 6181853 (2001-01-01), Wade
patent: 20020131699 (2002-09-01), Raguin et al.
patent: 20030147578 (2003-08-01), Pan et al.
Farr Mina
Lipson Jan
Finisar Corporation
Ullah Akm Enayet
Workman Nydegger
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