Integrated light absorber

Details Integrated light absorber Integrated light absorber

1998-06-11

1999-12-14

Epps, Georgia

Optical: systems and elements

Optical modulator

Light wave directional modulation

385 14, 385140, G02B 612, G02B 6125, G02B 6136

Patent

active

06002514&

ABSTRACT:
The integrated light absorber comprises a light chamber integrated in an optical chip, the chamber having upper and lower walls lying substantially parallel to the chip and peripheral walls extending there between and a light input port in a peripheral wall for receiving light to be absorbed, e.g. from a rib waveguide. At least one of the walls have light absorbing properties and the chamber is shaped so that the majority of light which enters the chamber through the light input port undergoes multiple reflections and so is absorbed by the walls of the chamber. Circular and star-shaped chambers are described.

REFERENCES:
patent: 5018813 (1991-05-01), Roddy et al.
patent: 5321779 (1994-06-01), Kissa
patent: 5337377 (1994-08-01), Yamada et al.
patent: 5463705 (1995-10-01), Clauberg et al.
patent: 5559912 (1996-09-01), Agahi et al.

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