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Optics Letters

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  • Vol. 23, Iss. 23 — Dec. 1, 1998
  • pp: 1855–1857

Elimination of cross talk in waveguide intersections

Steven G. Johnson, Christina Manolatou, Shanhui Fan, Pierre R. Villeneuve, J. D. Joannopoulos, and H. A. Haus  »View Author Affiliations


Optics Letters, Vol. 23, Issue 23, pp. 1855-1857 (1998)
http://dx.doi.org/10.1364/OL.23.001855


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Abstract

We present general criteria for crossing perpendicular waveguides with nearly 100% throughput and 0% cross talk. Our design applies even when the waveguide width is of the order of the wavelength. The theoretical basis for this phenomenon is explained in terms of symmetry considerations and resonant tunneling and is then illustrated with numerical simulations for both a two-dimensional photonic crystal and a conventional high-index-contrast waveguide crossing. Cross-talk reduction by up to 8 orders of magnitude is achieved relative to unmodified crossings.

© 1998 Optical Society of America

OCIS Codes
(130.1750) Integrated optics : Components
(130.3120) Integrated optics : Integrated optics devices
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(230.7370) Optical devices : Waveguides

Citation
Steven G. Johnson, Christina Manolatou, Shanhui Fan, Pierre R. Villeneuve, J. D. Joannopoulos, and H. A. Haus, "Elimination of cross talk in waveguide intersections," Opt. Lett. 23, 1855-1857 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-23-1855


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References

  1. K. Aretz and H. Bülow, Electron. Lett. 25, 730 (1989).
  2. M. G. Daly, P. E. Jessop, and D. Yevick, J. Lightwave Technol. 14, 1695 (1996).
  3. H. A. Haus, Waves and Fields in Optoelectronics (Prentice-Hall, Englewood Cliffs, N.J., 1984), Chap. 7.
  4. See, e.g., M. Tinkham, Group Theory and Quantum Mechanics (McGraw-Hill, New York, 1964).
  5. J. D. Joannopoulos, P. R. Villeneuve, and S. Fan, Nature (London) 386, 143 (1997).
  6. P. R. Villeneuve, S. Fan, and J. D. Joannopoulos, Phys. Rev. B 54, 7837 (1996).
  7. See, e.g., K. S. Kunz and R. J. Luebbers, The Finite-Difference Time-Domain Methods (CRC, Boca Raton, Fla., 1993).
  8. S. Fan, J. N. Winn, A. Devenyi, J. C. Chen, R. D. Meade, and J. D. Joannopoulos, J. Opt. Soc. Am. B 12, 1267 (1995).
  9. See, e.g., H. A. Haus and Y. Lai, IEEE J. Quantum Electron. 28, 205 (1992).

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