Selective frequency switching system and a reconfigurable...

Details Selective frequency switching system and a reconfigurable... Selective frequency switching system and a reconfigurable...

2008-01-29

2008-01-29

Chan, Jason (Department: 2613)

Optical communications

Multiplex

Optical switching

Reexamination Certificate

active

10262845

ABSTRACT:
The invention relates to a reconfigurable optical switching system for selectively coupling one or more frequencies of first and second input wavelength division multiplex signals (WDM1, WDM2) consisting of N channels to first and second output ports (O1, O2). The invention also relates to a variable and reconfigurable optical delay circuit comprising said optical switching system associated with an optical delay loop. The input frequency division multiplex optical spectra (WDM1, WDM2) are therefore divided by a first demultiplexer (Demux) to a plurality of interleaved stages of optical switches (D, C, A and B) which selectively feed a plurality of input ports (Mi) of a multiplexer (Mux), which then uses its routing properties to implement in particular the complex reconfigurable multiple 2×2 frequency switching function.

REFERENCES:
patent: 5434937 (1995-07-01), Glance
patent: 5526153 (1996-06-01), Glance
patent: 5566014 (1996-10-01), Glance
patent: 5680490 (1997-10-01), Cohen et al.
patent: 7058302 (2006-06-01), Khalfallah et al.
Jeyashankher Ramamirtham and Jonathan Turner Design of Wavlength Converting Switches for Optical Burst Switching Washington University of St. Louis—School of Engineering & Applied Science Aug. 7, 2001.
Lucent Technologies 40-Channel Arrayed Waveguide Grating Multiplexer/Demultiplexer Preliminary Data Sheet Nov. 1999.
Yuri Gurevich What does O(n) mean? SIGACT News 17 (1986), No. 4, 61-63.
A. Misawa et al, “WDM Knockout Switch with Multi-Output-Port Wavelength-Channel Selectors”, Journal of Lightwave Technology, IEEE, New York—vol. 16, No. 12, Dec. 1998 pp. 2212-2219, XP000833965.
A. Misawa et al, “Two-output-port fast tunable filter witih low loss and low loss variation for 32 wavelength channels” Electronics Letters, IEE Stevenage< GB, vol. 353, No. 8, Apr. 15, 1999, pp. 657-658, XP006012028.

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