Secure Optical Matrix Switch
Abstract
Novel fiber-optic switching arrays have been developed to control the network configuration of a secure fiber-optic intercom system. A fiber-linked system containing six optical data terminals was built and has been matrix- switched by a multimode 3 x 2 array constructed in a 80-micrometers-thick single-crystal LiTaO3 plate. Commercial multimode 0.15NA fibers, 85-micrometers core diameter, have been directly and permanently coupled to the plate ends at the matrix input and output ports, one strand for each data channel. Using oblique incidence, the fiber light cone was collimated by a factor of 2.6 in the crystal. The optical data sources consisted of GaAs LEDs emitting at the 0.90 m wavelength. Electrically controlled optical switching has been obtained with unpolarized TE- and TM-mode light launched in the crystal.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1979
- Accession Number
- ADA069623
Entities
People
- Richard Soref
Organizations
- Sperry Corporation