Optical waveguides – With optical coupler – Switch
Patent
1995-10-02
1998-03-17
Healy, Brian
Optical waveguides
With optical coupler
Switch
385 14, 385 15, 385 16, 385 24, 385 40, 385132, G02B 626
Patent
active
057296421
ABSTRACT:
An optical switching network includes one or more planar substrates with an optical waveguide switching array formed thereon butt-coupled to a waveguide component. The waveguide component is a planar substrate with a plurality of passive optical waveguides thereon. The input ends and output ends of the waveguides are disposed along the butt-coupled edge(s) of the waveguide component substrate. The waveguides and switches are arranged with the waveguides interconnecting the input and output switch arrays so that an incoming optical signal can be directed to any desired output on the output array. The use of planar substrates with electro-optic and passive waveguide circuits allows for a modular approach, where the active switch array substrate and the passive waveguide substrates can be optimized individually. An N.times.N switch array circuit can be formed of N sets of N.times.1 switch arrays on the input substrate and N sets of N.times.1 switch arrays on the output substrate. The input and output switch arrays are then interconnected by butt-coupling to a passive waveguide array fabricated on another substrate to form a complete N.times.N switch array circuit.
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Healy Brian
Redman, Esq. Mary Y.
The Boeing Company
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