Cross-connection of wavelength-division-multiplexed high speed o

Details Cross-connection of wavelength-division-multiplexed high speed o Cross-connection of wavelength-division-multiplexed high speed o

1987-05-06

1989-04-11

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

455601, 455617, 350 9619, H04B 900

Patent

active

048212555

ABSTRACT:
A wavelength division multiplexing structure for establishing dedicated high bit rate point-to-point connections between network nodes is disclosed. The information transmitted out of any given network node is modulated on a plurality of wavelengths according to destination. These wavelengthds are multiplexed and transmitted to the network hub. At the hub, all the different wavelengths from all the nodes are demultiplexed, passively rearranged, multiplexed again and transmitted to the appropriate destinations. The information handling capacity of this structure exceeds 1 Terabit/second.

REFERENCES:
"Applications of Coherent Optical Communications in the Network Environment," Proc. SPIE, H. Kobrinski, vol. 568, pp. 42-49, San Diego, 1985.
"Wavelength Division Multiplexing/Demultiplexing (WDM) Using Diffraction Gratings," Proc. SPIE, J. P. Laude and J. M. Lerner, vol. 503, pp. 22-28, San Diego, Aug. 1986.
"68.3 km Transmission which 1.37 Tbit km/s Capacity Using Wavelength Division Multiplexing of Ten Single-Frequency Lasers at 1.5 um," Elect. Lett., N. A. Olsson et al., vol. 21, pp. 105-106, 1985.
"Wavelength Controllability of VPE Grown 1.3 .mu.m DFB Lasers for Wavelength Multiplexing Optical Fiber Communication, " IOOC-ECOC Tech. Digest, H. Okuda et al., vol. 1, pp. 29-32, Oct. 1985, Venice, Italy.
"Strictly Nonblocking 8.times.8 Integrated-Optic Switch Matrix in Ti:LiNbO.sub.3," Integrated and Guide-Wave Optics Tech. Digest, P. Ganestrand et al., pp. 4-5, Feb. 1986, Atlanta.

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