Variable optical attenuator derived from sol-gel material...

Details Variable optical attenuator derived from sol-gel material... Variable optical attenuator derived from sol-gel material...

2006-11-28

2006-11-28

Doan, Jennifer (Department: 2874)

Optical waveguides

Accessories

Attenuator

C385S134000

Reexamination Certificate

active

07142766

ABSTRACT:
A variable optical attenuator and a method of manufacturing thereof are described. First, a bottom cladding is formed on a substrate. A waveguide structure having a core region and an attenuation region is subsequently formed on the bottom cladding by photolithography. A top cladding is then formed on the bottom cladding and the waveguide structure, and an electrode is next disposed thereon and is aligned above the attenuation region of the waveguide structure. Further, the waveguide structure is composed of a sol-gel material, which is obtained by mixing a solution of metal alkoxide with a solution of organically modified Si-alkoxide and heating the same.

REFERENCES:
patent: 2001/0046363 (2001-11-01), Purchase et al.

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