Optical communication module

Details Optical communication module Optical communication module

2005-06-07

2005-06-07

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling structure

C385S088000, C385S089000, C385S092000, C385S094000

Reexamination Certificate

active

06904209

ABSTRACT:
An optical communication module having a roughened bottom of a silicon bench for suppressing optical crosstalk. The roughened bottom prevents stray laser beams from reflecting toward a photodiode. The roughened bottom is further covered with a photoabsorbent resin, pigment or adhesive for absorbing the stray laser beams at a bottom. A cladding of a lightwaveguide are narrowed and are painted with a photoabsorbent resin, pigment or adhesive for absorbing horizontally stray beams propagating in the cladding.

REFERENCES:
patent: 6264377 (2001-07-01), Mitsuda et al.
patent: 6545296 (2003-04-01), Mukaihara et al.
patent: 11-068705 (1999-03-01), None
patent: 11-248978 (1999-09-01), None

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