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Optics Letters

Optics Letters


  • Vol. 9, Iss. 4 — Apr. 1, 1984
  • pp: 140–142

Low-cross-talk waveguide polarization multiplexer/demultiplexer for λ = 1.32 μm

R. C. Alferness and L. L. Buhl  »View Author Affiliations

Optics Letters, Vol. 9, Issue 4, pp. 140-142 (1984)

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We propose and demonstrate a new integrated-optic TE/TM splitter using a polarization-selective Ti:LiNbO3 directional coupler. By application of appropriate voltages, either polarization can be selected (cross talk will be below −30 dB) or both TE and TM modes can be simultaneously extracted (cross talk will be −24 dB).

© 1984 Optical Society of America

Original Manuscript: January 5, 1984
Manuscript Accepted: January 30, 1984
Published: April 1, 1984

R. C. Alferness and L. L. Buhl, "Low-cross-talk waveguide polarization multiplexer/demultiplexer for λ = 1.32 μm," Opt. Lett. 9, 140-142 (1984)

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  1. R. Ulrich, “Polarization stabilization on single-mode fibers,” Appl. Phys. Lett. 35, 840–842 (1979). [CrossRef]
  2. R. C. Alferness, L. L. Buhl, “Waveguide electro-optic polarization transformer,” Appl. Phys. Lett. 38, 655–657 (1981). [CrossRef]
  3. See, for example, M. Papuchon, S. Vatoux, “Integrated optical polarizer on LiNbO3:Ti channel waveguides using proton exchange,” presented at the Meeting on Integrated Optics and Optical Communication, Tokyo, Japan, June 1983.
  4. M. Masuda, G. L. Yip, “An optical TE–TM mode splitter using a LiNbO3 branching waveguide,” Appl. Phys. Lett. 37, 20–22 (1980). [CrossRef]
  5. H. Nakajima, T. Horimatsu, M. Seino, I. Sawaki, “TE/TM mode splitter using intersecting waveguides,” IEEE Trans. Microwave Theory Tech. MTT-30, 617–621 (1982). [CrossRef]
  6. O. Mikami, “LiNbO3 coupled-waveguide TE/TM mode splitter,” Appl. Phys. Lett. 36, 491–493 (1980). [CrossRef]
  7. R. C. Alferness, U.S. Patent No.4,390,236 (June28, 1983).
  8. M. Minakata, S. Saito, M. Shibata, S. Miyazawa, “Precise determination of refractive index changes in Ti:LiNbO3 waveguides,” J. Appl. Phys. 49, 4677–4682 (1978). [CrossRef]
  9. R. C. Alferness, R. V. Schmidt, E. H. Turner, “Characteristics of Ti-diffused LiNbO3 optical directional couplers,” Appl. Opt. 18, 4012–4016 (1979). [CrossRef] [PubMed]
  10. C. Bulmer, W. K. Burns, “Polarization characteristics of LiNbO3 channel waveguide directional couplers,” IEEE J. Lightwave Tech. LT-1, 227–236 (1983). [CrossRef]
  11. H. Kogelnik, R. V. Schmidt, “Switched directional couplers with alternating Δβ,” IEEE J. Quantum Electron. QE-13, 396–400 (1976). [CrossRef]

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