Optical communications – Multiplex – Optical switching
Reexamination Certificate
2011-05-31
2011-05-31
Tran, Dzung D (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S052000, C398S053000
Reexamination Certificate
active
07953323
ABSTRACT:
The present invention provides an optical time multiplexed space switch including a pulsed laser source, and means for producing from the laser source a plurality of wavelengths of pulsed radiation including means for providing permutable multi-wavelength pulse sequences from said multi-wavelength source and means for translating the input data pulses into the multi-wavelength pulse sequence. Each data pulse is subsequently guided through a wavelength selective structure, which may contain delay lines. In the case of time-slot interchange, the pulses are recombined in an interchanged sequence. In the case of tributary space switching different wavelength pulses are switched to generally different outputs and combine with pulses originating from different inputs. Alternatively, instead of or in addition to the means for providing permutable multi-wavelength pulse sequences from the pulsed source, means are provided for the permutation of the multi-wavelength data pulse sequence in reconfigurable wavelength selective structures.
REFERENCES:
patent: 5623356 (1997-04-01), Kaminow et al.
patent: 2003/0030887 (2003-02-01), Lee et al.
patent: 2003/0193937 (2003-10-01), Beshai et al.
G. Zarris et al, “An All-Optical Time-Slot Interchange Architecture,” European Conference on Optical Communications 2006 Proceedings, conference held in Cannes, France Sep. 2006, 3 pages.
Paulo J. Almeida et al, “OTDM Add-Drop Multiplexer Based on Time-Frequency Signal Processing,” Journal of Lightwave Technology, vol. 24 No. 7, Jul. 2006, pp. 2720 through 2732.
G. Zarris et al, “Applications of Ultra-Short Pulse Sources in OTDM Networks,” PS'2006 Photonics in Switching Conference.
J.P. Turkiewicz et al, “160 Gb/s OTDM Networking Using Deployed Fiber,” Journal of Lightwave Technology, vol. 23 No. 1, Jan. 2005, pp. 225 through 235.
Z. Yusoff et al, “A 36-Channel×10-GHz Spectrally Sliced Pulse Source Based on Supercontinuum Generation in Normally Dispersive Highly Nonlinear Holey Fiber,” IEEE Photonics Technology Letters, vol. 15 No. 12, Dec. 2003, pp. 1689 through 1691.
Zhong Pan et al, “All-optical programmable time-slot-interchanger using optical-label switching with tunable wavelength conversion and N by N arrayed waveguide grating routers,” Optical Fiber Communication Conference and Exhibit, OFC 2002, pp. 267 through 268.
Stanley Pau et al, “160-Gb/s All-Optical MEMS Time-Slot Switch for OTDM and WDM Applications,” IEEE Photonics Technology Letters, vol. 14 No. 10, Oct. 2002, pp. 1460 through 1462.
Kiyoshi Onohara et al, “Photonic Time-Slot and Wavelength-Grid Interchange for 10-Gb/s Packet Switching,” IEEE Photonics Technology Letters, vol. 13. No. 10, Oct. 2001, pp. 1121 through 1123.
Hideyuki Sotobayashi et al, “Bi-directional photonic conversion between 4×10 Gbit/s OTDM and WDM by optical time-gating wavelength interchange,” Copyright 2000 Optical Society of America, Optical Fiber Communication Conference and Exhibit, OFC 2001, vol. 3, pp. WM5-1 through WM5-3.
St. Fischer et al, “40-Gb/s OTDM to 4×10 Gb/s WDM Conversion in Monolithic InP Mach-Zehnder Interferometer Module,” IEEE Photonics Technology Letters, vol. 11 No. 10, Oct. 1999, pp. 1262 through 1264.
David Norte and Alan E. Willner, “All-Optical Data Format Conversions and Reconversions Between the Wavelength and Time Domains for Dynamically Reconfigurable WDM Networks,” Journal of Lightwave Technology, vol. 14 No. 6, Jun. 1996, pp. 1170 through 1182.
David K. Hunter and D. Geoffrey Smith, “New Architectures for Optical TDM Switching,” Journal of Lightwave Technology, vol. 11, No. 3, Mar. 1993, pp. 495 Through 511.
Hisashi Kobayashi and Ivan P. Kaminow, “Duality Relationships among ‘Space,’ ‘Time,’ and ‘Wavelength’ in All-Optical Networks,” Journal of Lightwave Technology, vol. 14 No. 3, Mar. 1996, pp. 344 through 351.
R. A. Thompson and P.P. Giordano, “An Experimental Photonic Time-Slot Interchanger Using Optical Fibers as Reentrant Delay-Line Memories,” Journal of Lightwave Technology, vol. LT-5, No. 1, Jan. 1987 pp. 154-162.
M.C. Cardakli et al, “All-optical time-slot-interchange and wavelength conversion using difference-frequency-generation and FGBs,” Conference on Optical Fiber Communications '00, Post-Deadline paper PD-34, Baltimore, MD, Feb. 2000, pp. 196-198.
Kolisch Hartwell PC
Tran Dzung D
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