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IEEE Journal of Lightwave Technology
Volume 18 Number 4, April 2000

Table of Contents for this issue

Complete paper in PDF format

A Novel 1 × 4 Coupler-Multiplexer Permutation Switch for WDM Applications

Tarek A. Ramadan, Robert Scarmozzino, Member, IEEE and Richard M. Osgood Jr., Fellow, IEEE

Page 579.

Abstract:

A novel 1× 4 coupler multiplexer permutation switch (CMPS) is proposed for applications in wavelength-division-multiplexing (WDM) optical networks. The structure of the CMPS integrates the multiplexing and switching functions into a single compact device. It consists of a single-mode/multimode-waveguide grating-assisted, backward-coupler multiplexer followed by a 1× 4 digital optical switch (DOS). The specific design uses an InP-based 1× 4 CMPS with InGaAsP/InP multiple-quantum-well (MQW) DOS. The calculated values of crosstalk for the coupler multiplexer and the DOS are <-25 dB and -23 dB, respectively, giving an overall crosstalk <-21 dB for channel bandwidths of 10-13 GHz. The device channels are unequally spaced, which reduces unwanted four-wave mixing (FWM), but are fitted to the ITU standard wavelength grid.

References

  1. T. E. Stern and K. Bala, Multiwavelength Optical Networks: A Layered Approach, Reading, MA: Addison-Wesely, 1999.
  2. G. P. Agrawal, Fiber-Optic Communication Systems, New York: Wiley, 1997.
  3. F. Forghieri, R. W. Tkach, A. R. Chraplyvy and D. Marcuse, "Reduction of four-wave-mixing crosstalk in WDM systems using unequally spaced channels", IEEE Photon. Technol. Lett., vol. 6, pp.  754-756, 1994.
  4. F. Forghieri, R. W. Tkach and A. R. Chraplyvy, "WDM systems with unequally spaced channels", J. Lightwave Technol., vol. 13, pp.  889-897, 1995.
  5. D. A. Smith, J. E. Baran, J. J. Johnson and K. W. Cheung, "Integrated-optic acoustically tunable filters for WDM networks", IEEE J. Select. Areas Commun., vol. 8, pp.  1151-1159,  1990.
  6. H. Okayama, T. Kamijoh and M. Kawahara, "Multiwavelength hiway photonic switches using wavelength-sorting elements-design", J. Lightwave Technol., vol. 15, pp.  607-615, 1997.
  7. J. L. Jackel, M. S. Goodman, J. E. Baran, W. J. Tomlinson, G. Change, M. Z. Iqbal, G. H. Song, K. Bala, C. A. Brackett, D. A. Smith, R. W. Ade and K. M. Kissa, "Acousto-optic tunable filters (AOTF's) for multiwavelength optical cross-connects: Crosstalk considerations", J. Lightwave Technol., vol. 14, pp.  1056-1066, 1996.
  8. Y. Tachikawa, Y. Inoue, M. Ishii and T. Nozawa, "Arrayed-waveguide grating multiplexers with loop-back optical paths and its applications", J. Lightwave Technol., vol. 14, pp.  977-984, 1996.
  9. B. Glance, I. P. Kaminow and R. W. Wilson, "Applications of the integrated waveguide grating router", J. Lightwave Technol., vol. 12, pp.  957-962, 1994.
  10. D. A. B. Miller, D. S. Chemla and T. C. Damen, "Band-edge electroabsorption in quantum well structures: The quantum-confined Stark effect", Phys. Rev. Lett., vol. 53, pp.  2173-2176, 1984.
  11. B. N. Thruston, E. Kapon and Y. Silberberg, "Analysis of mode separation in multichannel branching waveguides", IEEE J. Quantum Electron., vol. QE-23, pp.  1245-1255, 1987.
  12. G. J. Veldhuis, J. H. Brends and P. V. Lambeck, "Design and characterization of a mode-splitting junction", J. Lightwave Technol., vol. 14, pp.  1746-1752, 1996.
  13. H. Okayama and M. Kawahara, "Reduction of voltage-length product for Y-branch digital optical switch", J. Lightwave Technol., vol. 11, pp.  379-387, 1993.
  14. D. Marcuse, Theory of Dielectric Optical Waveguides, 2nd ed.   New York: Academic, 1991.
  15. T. A. Ramadan, "New optical coupler devices", Ph.D. dissertation, Columbia Univ., New York, 1999.
  16. D. Marcuse, "Bandwidth of forward and backward coupling directional couplers", J. Lightwave Technol., vol. LT-5, pp.  1773-1777, 1987.
  17. D. Marcuse, "Directional couplers made of nonidentical asymmetric slabs.-Part II: Grating assisted couplers", J. Lightwave Technol., vol. LT-5, pp.  268-273, 1987.
  18. D. Yevick and W. Bardyszewiski, "Correspondence of variational finite-difference (relaxation) and imaginary-distance propagation methods for modal analysis", Opt. Lett., vol. 17, pp.  329-330, 1992.
  19. H. Kogelnik, "Theory of optical waveguides,"in Guided-Wave Optoelectronics, T. Tamir, Ed., New York: Springer-Verlag, 1988, ch. 2.
  20. R. Scarmozzino and R. M. Osgood Jr., "Comparison of finite-difference and Fourier-transform solutions of parabolic wave equation with emphasis on integrated-optics applications", J. Opt. Soc. Amer. A, vol. 8, pp.  724-731, 1991.
  21. G. R. Hadley, "Transparent boundary conditions for beam propagation method", IEEE J. Quantum Electron., vol. 28, pp.  363-370, 1992.
  22. W. K. Burns and A. F. Milton, "Waveguide transitions and junctions,"in Guided Wave Optoelectronics, T. Tamir, Ed.: Springer-Verlag, 1988, ch. 3.
  23. W. K. Burns and A. F. Milton, "Mode conversion in planar-dielectric separating waveguides", IEEE J. Quantum Electron., vol. QE-11, pp.  32-39,  1975.
  24. A. F. Milton and W. K. Burns, "Tapered velocity couplers for integrated optics: Design", Appl. Opt., vol. 14, pp.  1207-1212, 1975.
  25. W. Wakita, Semiconductor Optical Modulators, New York: Kluwer Academic, 1998.
  26. M. Cada, B. P. Keyworth, J. M. Glinski, A. J. SpringThrope, C. Rolland and K. O. Hill, "Electro-optic switching in a p-i-n doped multiple quantum well directional coupler", J. Appl. Phys., vol. 69, pp.  1760-1762, 1991.
  27. J. E. Zucker, I. Bar-Joseph, B. I. Miller, U. Koren and D. S. Chemla, "Quaternary quantum wells for electro-optic intensity and phase modulation at 1.3 and 1.55 µ m", Appl. Phys. Lett., vol. 54, pp.  10-12, 1989.
  28. H. K. Tsang, J. B. D. Soole, H. P. LeBlanc, R. Bhat and M. A. Koza, "Efficient InGaAsP/InP multiple qauntum well waveguide optical phase modulator", Appl. Phys. Lett., vol. 57, pp.  2285-2287,  1990.
  29. J. S. Weiner, D. A. B. Miller and D. S. Chemla, "Quadratic electro-optic effect due to quantum-confined Stark effect in quantum wells", Appl. Phys. Lett. , vol. 50, pp.  842-844, 1987.
  30. M. Born and E. Wolf, Principles of Optics, 5th ed.  : Pergamon, 1975.
  31. R. A. Sammut and I. M. Skinner, "Effective index models for MQW waveguides", Opt. Commun., vol. 76, pp.  213-216, 1990.
  32. S. Adachi, "Optical properties of In1-x GaxAsyP1-y alloys", Phys. Rev. B, vol. 39, pp.  12 612-12 621, 1989.
  33. N. Osman, M. Koshiba and R. Kaji, "A comprehensive analysis of multilayer channel waveguides", J. Lightwave Technol., vol. 12, pp.  821-826, 1994.
  34. D. A. B. Miller, J. S. Weiner and D. S. Chemla, "Electric-field dependence of linear optical properties in quantum well structures: Waveguide electroabsorption and sum rules", IEEE J. Quantum Electron., vol. QE-22, pp.  1816-1830, 1986.
  35. K. Komatsu, K. Hamamoto, M. Sugimoto, A. Ajisawa, Y. Kohga and A. Suzuki, "4× 4 GaAs/AlGaAs optical matrix switches with uniform device characteristics using alternating electrooptic guided-wave directional couplers", J. Lightwave Technol., pp.  871-878, 1991.
  36. K. Hamamoto, S. Sugou, K. Komatsu and M. Kitamura, "Extremely low loss 4× 4 GaAs/AlGaAs optical matrix switch", Electron. Lett., pp.  1580-1582, 1993.
  37. P. J. Stevens, M. Whitehead, G. Parry and K. Woodbridge, "Computer modeling of the electric field dependent absorption spectrum of multiple quantum wee material", IEEE J. Quantum Electron., vol. 24, pp.  2007-2016, 1988.