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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)
| Description: |
Final technical rept. Feb 76-Mar 77 |
| Pages: |
140 |
| Report Date: |
AUG 1977 |
| Contract Number: |
F3060276C0129 |
| Report Number: |
A802440 |
Report Unavailable |
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