Fiber Optics pp 415-429 | Cite as

Multimode 3x2 Fiber-Optical Matrix Switch

  • Richard A. Soref


A novel fiber-optic crossbar of modest size has been demonstrated, and a fiber-optic intercom containing six optical data terminals has been matrix-switched by a multimode 3x2 switching array constructed in an 80-μm LiTaO3 plate. Multimode commercial 0.15 NA monofibers have been angle-coupled to the crystal, and electrically controlled optical switching has been obtained under the difficult input condition of unpolarized TE- and TM-mode light (λ = 0.90 μm) launched in the crystal.


Output Fiber Fiber Array Lithium Tantalate Optical Matrix Step Index Fiber 
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  1. 1.
    R. A. Soref and D. H. McMahon, “Multimode 2x2 Optical Crossbar Switch”, Electronics Letters, 14, 283 (1978).ADSCrossRefGoogle Scholar
  2. 2.
    R. A. Soref, “Secure Optical Matrix Switch”, Final Report on Contract No. F19628–77-C-0187, RADC Deputy for Electronic Technology, Hanscom AFB MA 01731, July 1978, available from Sperry Research Center as Contract Report 78–35.Google Scholar
  3. 3.
    A. R. Nelson and D. H. McMahon, “Modulators for Multimode Single-Fiber Communications Systems”, presented at the Electrooptic Systems Design Conference, New York, NY, Sept. 14, 1976. Proceedings of Technical Program, pp. 3639.Google Scholar

Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • Richard A. Soref
    • 1
  1. 1.Sperry Research CenterSudburyUSA

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