Optoswitch Crosstalk Study.
Abstract
A multimode electro-optical switch that has low crosstalk between channels has been demonstrated experimentally in a 70-micrometers-thick plate of Z-cut LiTaO3. The fiber-compatible four-port switch is intended for integration into an optical matrix. The crosspoint consists of an in-plane crossover, two simple optical switches, and a curved connecting waveguide. Taken alone, the crossovers had 40 dB optical isolation. Compound crosspoints were tested using convergent TM-polarized input light with an 0.07 numerical aperture. About 10% of the initially channeled light was transferred into the crosschannel, and the optical switching ratio of the crosschannel was 26 dB using 450 volts dc for control. Optical transmission loss of the 6-cm-long switch was 1.6 dB. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1977
- Accession Number
- ADA044208
Entities
People
- Richard Soref
Organizations
- Sperry Corporation