Abstract

A multichannel optical wavelength selective switch is investigated, which can switch signals at arbitrary wavelengths between multichannels in wavelength division multiplexing systems. It is based on the combination of an arrayed-waveguide grating (AWG) multiplexer and an array of optical space-division switches. A monolithically integrated 2\;\times\;2 optical wavelength selective switch is successfully fabricated for four multiplexed signals in the 1.55\;\mum wavelength region. Here, an AWG and four 2\;\times\;2 thermooptic switches are laid out on a 30\;\times\;60 mm2 chip. Wavelength selective switching operations for four wavelength signals between two lines are demonstrated in a time slot of 40 ms with a switching speed of 1 ms.

[IEEE ]

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J. Lightwave Technol. (7)

S. B. Alexander, R. S. Bondurant, D. Byrner, V. W. S. Chan, S. G. Finn, R. Gallager, B. S. Glance, H. A. Haus, P. Hublet, R. Jain, I. P. Kaminow, M. Karol, R. S. Kennedy, A. Kirby, H. Q. Le, A. A. M. Saleh, B. A. Schofield, J. H. Shapiro, N. K. Shankaranarayanan, R. E. Thomas, R. C. Williamson, and R. W. Wilson, "A precompetitive consortium on wide-band all optical network," J. Lightwave Technol., vol. 11, pp. 714-735, May/June 1993.

M. Koga, Y. Hamazumi, A. Watanabe, S. Okamoto, H. Obara, K. Sato, M. Okuno, and S. Suzuki, "Design and performance of an optical path cross-connect system based on wavelength path connect," J. Lightwave Technol., vol. 14, pp. 1106-1119, June 1996.

C. A. Brackett, A. S. Acampora, J. Sweitzer, G. Tangonan, M. T. Smith, W. Lennon, K. Wang, and R. H. Hobbs, "A scalable multiwavelength multihop optical network: A proposal for research on all-optical networks," J. Lightwave Technol., vol. 11, pp. 736-735, May/June 1993.

Y. Tachikawa, Y. Inoue, M. Ishii, and T. Nozawa, "Arrayed-waveguide grating multiplexer with loop-back optical paths and its applications," J. Lightwave Technol., vol. 14, pp. 977-984, June 1996.

N. Takato, K. Jinguji, M. Yasu, H. Toba, and M. Kawachi, "Silica-based single-mode waveguides on silicon and their application to guided-wave optical interferometer," J. Lightwave Technol., vol. 6, pp. 1003-1010, June 1988.

H. Takahashi, K. Oda, and H. Toba, "Impact of crosstalk in an arrayed-waveguide multiplexer on N\;\times\;N optical interconnection," J. Lightwave Technol., vol. 14, pp. 1097-1105, June 1996.

H. Takahashi, K. Oda, H. Toba, and Y. Inoue, "Transmission characteristics of arrayed waveguide N\;\times\;N wavelength multiplexer," J. Lightwave Technol., vol. 13, pp. 447-455, Mar. 1995.

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