Accession Number:

ADA014481

Title:

Integrated Optical Switches.

Descriptive Note:

Final rept. 1 Jun 74-31 May 75,

Corporate Author:

SPERRY RESEARCH CENTER SUDBURY MASS

Report Date:

1975-07-01

Pagination or Media Count:

127.0

Abstract:

Integrated optical switches for multimode fiber-optic communication systems have been investigated theoretically and experimentally. Thick film 20 to 100 lambda optical waveguide structures are judged optimum for the switching devices. The first part of this report shows how the authors arrived at the thick-film technology approach. The principle of optical brightness conservation imposes theoretical limits on the maximum energy transfer between various fiber and film geometries. The consequences of the coupling limits on fiber-optic systems are spelled out in Sec. 2. Two types of fiber-optic switches, refractive and diffractive, are described in Sec. 3. Experimental results are presented for acoustooptic Bragg devices, and electro-optic multi-prism devices. Section 4 presents a detailed computer analysis of a phase modulation switch, which consists of a relative phase shifter for TE and TM modes an electro-optic polarization rotator and a passive beam-discriminator.

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Acoustooptic and Optoacoustic Devices
  • Fiber Optics and Integrated Optics
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE