Variable optical attenuator multiplexer with a thermal...

Details Variable optical attenuator multiplexer with a thermal... Variable optical attenuator multiplexer with a thermal...

2008-04-08

2008-04-08

Leung, Quyen P (Department: 2874)

Optical waveguides

Integrated optical circuit

Reexamination Certificate

active

10877413

ABSTRACT:
A variable optical attenuator multiplexer having at least one thermal isolating optical joint. The variable optical attenuator multiplexer including a plurality of planar lightwave circuit components, such as, for example a combination of an array waveguide grating, a variable optical attenuator, and/or a power monitor. The planar lightwave circuit components are joined with an optical adhesive. The components may be thermally isolated by the formation of a widened space or gap between the component joints, and/or by creating a trench in the optical adhesive.

REFERENCES:
patent: 6556749 (2003-04-01), Uetsuka et al.
patent: 6757452 (2004-06-01), Shin et al.
patent: 6842572 (2005-01-01), Johannessen
patent: 6954566 (2005-10-01), Johannessen
patent: 2002/0097963 (2002-07-01), Ukechi et al.
patent: 2003/0016938 (2003-01-01), Hatayama et al.

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