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Applied Optics

Applied Optics


  • Vol. 16, Iss. 12 — Dec. 1, 1977
  • pp: 3223–3229

Compound optical crosspoint with low crosstalk

Richard A. Soref and Arthur R. Nelson  »View Author Affiliations

Applied Optics, Vol. 16, Issue 12, pp. 3223-3229 (1977)

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A multimode electrooptical switch that has high isolation between channels has been demonstrated experimentally in a 70-μm-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. For convergent input light with a 0.07 numerical aperture, 10% of the initially channeled light was transferred into the crosschannel, and the optical switching ratio of that channel was 26 dB using 450-V dc for control.

© 1977 Optical Society of America

Original Manuscript: May 25, 1977
Published: December 1, 1977

Richard A. Soref and Arthur R. Nelson, "Compound optical crosspoint with low crosstalk," Appl. Opt. 16, 3223-3229 (1977)

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  1. See also R. A. Soref, “Optoswitch Crosstalk Study,” Final Report on contract F30602-76-C-0129, March1977; available from Rome Air Development Center, Griffiss AFB, New York 13441.
  2. R. A. Soref, Appl. Opt. 15, 2950 (1976). [CrossRef] [PubMed]
  3. R. A. Soref, L. R. Schissler, Appl. Opt. 14, 2559 (1975). [CrossRef] [PubMed]
  4. A. R. Nelson, D. H. McMahon, R. L. Gravel, Appl. Phys. Lett. 28, 321 (1976). [CrossRef]
  5. R. A. Soref, D. H. McMahon, A. R. Nelson, Appl. Phys. Lett. 28, 716 (1976). [CrossRef]
  6. A. R. Nelson, D. H. McMahon, in Proceedings of Electro-Optic Systems Design Conference, New York, 14 Sept. 1976 (Industrial and Scientific Conference Mgt., Chicago), paper 2.2, pp. 36–39.
  7. R. A. Soref, A. R. Nelson in Digest of Technical Papers, International Electron Devices Meeting, Washington, D.C., 7 Dec. 1976 (IEEE, 345 E. 47 St., New York 10017), paper 10.3, pp. 229–231.
  8. A. R. Nelson, R. A. Soref (unpublished).
  9. M. G. F. Wilson, C. W. Pitt, R. Manku, A. D. DeOlivera, O. Parriaux, Electron. Lett. 12, 434 (1976). [CrossRef]
  10. R. V. Schmidt, H. Kogelnick, Appl. Phys. Lett. 28, 503 (1976). [CrossRef]

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