Wavelength dilated switches (WDS)-a new class of high density, suppressed crosstalk, dynamic wavelength-routing crossconnects

The concept of dilated space-division switches is generalized to the wavelength dimension, resulting in a new class of dynamic wavelength-routing crossconnects. These wavelength dilated switches (WDSs) are reconfigurable and feature suppressed crosstalk and denser wavelength-spacings. They are scalable, with switch-complexity of alpha N log/sub 2/ N where alpha is the dilation constant, typically 4-6, and N is the number of ports. A method for minimizing the crosstalk is described, and it is demonstrated with examples how the WDS can relax the crosstalk requirement of the wavelength routing devices.<<ETX>>

[1]  V. Benes.  On rearrangeable three-stage connecting networks , 1962 .

[2]  Amnon Yariv,et al.  Optical Waves in Crystals , 1984 .

[3]  Arun N. Netravali,et al.  Dilated Networks for Photonic Switching , 1987, IEEE Trans. Commun..

[4]  Toshimi Kominato,et al.  Silica-Based Integrated Optic Mach-Zehnder Multi/Demultiplexer Family with Channel Spacing of 0.01-250 nm , 1990, IEEE J. Sel. Areas Commun..

[5]  Kwok-Wai Cheung,et al.  Wavelength-selective circuit and packet switching using acousto-optic tunable filters , 1990, [Proceedings] GLOBECOM '90: IEEE Global Telecommunications Conference and Exhibition.

[6]  Thomas E. Stern.  Linear lightwave networks: how far can they go? , 1990, [Proceedings] GLOBECOM '90: IEEE Global Telecommunications Conference and Exhibition.

[7]  Kwok-Wai Cheung.  Scalable, fault-tolerant 1-hop wavelength routing networks , 1991, IEEE Global Telecommunications Conference GLOBECOM '91: Countdown to the New Millennium. Conference Record.

[8]  Kwok-Wai Cheung,et al.  Wavelength rearrangeable and strictly nonblocking networks , 1992 .

[9]  Kwok-Wai Cheung,et al.  The wavelength dilation concept-implementation and system considerations , 1992, [Conference Record] SUPERCOMM/ICC '92 Discovering a New World of Communications.