Optical waveguides – With optical coupler – Particular coupling function
Patent
1989-12-04
1991-10-08
Gonzalez, Frank
Optical waveguides
With optical coupler
Particular coupling function
385132, 359127, G02B 610
Patent
active
050548735
ABSTRACT:
A tunable, integrated WDM optic couler for coupling optical energy to and from channel waveguides in response to the application of Surface Acoustic Waves (SAW's ), and a distributed processor computer control system utilizing the couplers. A first range of SAW's is used to couple optical energy of selected wavelengths from a channel waveguide driven by a LED to multiplex optical energy to a common optic loop and a second, non-overlapping range of SAW's is used to couple optical energy from the loop to a second channel waveguide. The second, receiving channel waveguide includes a Bragg deflector, planar waveguide and photodetector arrays to demultiplex the optical energy by focusing selected wavelengths of optical energy on selected portions of the photodetector arrays. Changes in the acoustic wavelengths and amplitudes permit tuning of the coupler and computer system by altering the portion and wavelengths, respectively, of optical energy coupled by each section of each coupler.
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Davis Richard L.
Stoll Harold M.
Anderson Terry J.
Block Robert B.
Gonzalez Frank
Heartney Phan T.
Northrop Corporation
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