Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2008-05-06
2008-05-06
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Input/output coupler
C385S031000, C385S038000, C345S173000, C345S175000, C345S176000
Reexamination Certificate
active
07369724
ABSTRACT:
A polymer waveguide assembly. The assembly includes a polymer waveguide have a plurality of waveguide cores and an associated plurality of lenses respectively. The assembly also includes a molded lens structure having a support region, a primary refractive surface and a secondary refractive lens. The polymer waveguide is positioned onto the support surface of the molded lens structure so that the waveguide lenses are in optical alignment with the primary refractive lens and the secondary refractive lens of the molded waveguide structure. The lenses of the polymer waveguide are capable of collimating in the X and Y directions respectively. The primary refractive lens and the secondary refractive lens are both capable of collimating light in the Z direction. With this arrangement, a substantial; portion of the light passing through the secondary lens toward the waveguide cores is within the acceptance angle of the plurality of waveguides lenses respectively. The secondary lens thus creates a shallow angle of convergence relative to the input of the plurality of lenses of the waveguide. As a result, issues caused by misalignment are minimized and optical coupling is improved.
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Beyer & Weaver, LLP
Font Frank G.
Lepisto Ryan
National Semiconductor Corporation
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