Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2008-01-08
2008-01-08
Bello, Agustin (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S084000
Reexamination Certificate
active
07317875
ABSTRACT:
An optical communication network system and a wavelength-routing device and a communication node therefor are provided which can easily increase the optical paths between communication nodes, which are capable of expanding transmission capacity, and which excel in flexibility and expandability. An optical signal within a wavelength band (λBm±Δλm) which has been transmitted from a predetermined communication node (200-1through200-4) is subjected to wavelength-band demultiplexing of the wavelength bands by wavelength-band demultiplexers (220-1through220-4) of a wavelength-routing device (210), and is then subjected to wavelength-routing by arrayed-waveguide gratings (241through244) according to the wavelength bands, and furthermore is multiplexed with optical signals of other wavelength bands by wavelength-band multiplexers (230-1through230-4), and after having been outputted, is transmitted to a communication node. In this manner, by varying the wavelength band (λBm±Δλm) of the wavelength of the optical signal which is transmitted from the communication node, it becomes possible to establish a single optical path between the communication nodes for each wavelength band.
REFERENCES:
patent: 5937117 (1999-08-01), Ishida et al.
patent: 06-311108 (1994-11-01), None
patent: 10-243424 (1998-09-01), None
patent: 3020378 (2000-01-01), None
patent: 2000-134649 (2000-05-01), None
patent: 2001-008244 (2001-01-01), None
patent: 2002-165238 (2002-06-01), None
patent: 2002-262319 (2002-09-01), None
patent: 2002-300137 (2002-10-01), None
patent: 2004-147035 (2004-05-01), None
Hideaki Okayama, Takeshi Kamijoh, and Masato Kawahara, “Multi Wavelength Highway Photonic Switches Using Wavelength-Sorting Elements-Design”, Journal of Lightwave Technology, vol. 15, No. 4, Apr. 1997, pp. 607 to 615.
K. Noguchi, “Scalability of Full-Mesh WDM AWG-STAR Network”, IEICE Transactions on Communications, vol. E86-B, No. 5, pp. 1493-1497, May 2003.
K. Kato et al., “32×32 Full-Mesh (1024 path) Wavelength Routing WDM Network Based on Uniform Loss Cyclic-Frequency Arrayed-Waveguide Grating”, IEE Electron, Lett., vol. 36, No. 15, pp. 1294-1295, Jul. 2000.
K. Kato et al., “10-Tbps Full-Mesh WDM Network Based on Cyclic-Frequency Arrayed-Waveguide Grating Router”, ECOC 2000, vol. 1, pp. 105-107, 2000.
Y. Sakai, “Full-Mesh Wavelength-Routing WDM Network based on Arrayed-Waveguide Grating”, IEEE LEOS Annual Meeting, vol. 2, ThQ1, pp. 832-833.
Y. Sakai et al., “Management System for Full-Mesh WDM AWG-STAR Network”, ECOC 2001, No. We. B. 1. 5, pp. 264-265, 2001.
K. Noguchi et al., “Scalability of Full-Mesh WDM AWG-STAR Network”, OECC 2002, 10A1-2, pp. 72-73, Jul. 2002.
K. Noguchi et al., “The First Field Trial of a Wavelength Routing WDM Full-Mesh Network System (AWG-STAR) in a Metropolitan / Local Area”, OFC 2003, THAA5, pp. 611-613, 2003.
H. Tanobe et al., “Demonstration of Logical-Topology Reconfiguration in Full-Mesh WDM Networks (AWG-STAR) Based on Wavelength Routing Technology”, ECOC 2003, Th2.4.5, 2003, Feb. 22, 2004.
O. Moriwaki et al., “Reconfigurable Wavelength-Routed Network with N×N AWG Arranged in CWDM Bands for Bandwidth on Demand”, OFC 2003, MF90.
Y. Sakai et al., “Full-Mesh WDM Network Based on Cyclic-Frequency Arrayed-Waveguide Grating”, Technical Report of IEICE, OCS2000-9, pp. 47-52, 2000 (English Abstract).
Y. Sakai et al., “Full-Mesh Wavelength-Routing Network System (AWG-STAR)”, Technical Report of IEICE, OCS2001-55, PS2001-26, OFT2001-31, pp. 61-66, 2001 (English Abstract).
K. Noguchi et al., “Scalability of AWG-STAR Network System”, Technical Report of IEICE, OCS2001-56, PS2001-27, OFT2001-32, pp. 67-72, 2001 (English Abstract).
K. Noguchi et al., “Full-Mesh-Star Network System with Cyclic Frequency Arrayed Waveguide Grating”, Technical Report of IEICE, OCS2001-80, OPE2001-84, LQE2001-78, pp. 47-52, 2001 (English Abstract).
Y. Koike et al., “Field Trial of AWG-STAR Network”, Technical Report of IEICE, PS2002-52, pp. 17-22, 2002 (English Abstract).
Y. Koike et al., “A Monitoring and Control for AWG-STAR Network”, Technical Report of IEICE NS2002-195, PS2002-69, pp. 53-56, 2002 (English Abstract).
H. Tanobe et al., “Logical Topology Dynamically-Reconfigurable Network with Wavelength Routing Full-Mesh AWG-STAR Technology”, Technical Report of IEICE, NS2002-283, IN2002-256, pp. 133-136, 2003 (English Abstract).
K. Kato et al., “10 Tpbs Full-Mesh WDM Network Based on 32×32 Cyclic-Frequency AWG”, The Institute of Electronics, Information and Communication Engineers, B-10-1000, p. 475, 2000.
K. Tanaka et al., “Wavelength Routing Experiment in WDM Star Network Using a Cyclic Arrayed-Waveguide Grating”, The Institute of Electronics, Information and Communication Engineers, B-10-102, p. 477, 2000.
K. Sakai et al., “Optical Interface Board for Wavelength Division Multiplexing”, The Institute of Electronics, Information and Communication Engineers, B-10-103, p. 478, 2000.
K. Noguchi et al., “Transmission Characteristics in Full-Mesh WDM Network Based on Cyblic-Frequency AWG (AWG-STAR)”, The Institute of Electronics, Information and Communication Engineers, B-10-118, p. 341, 2000.
K. Sakai, et al., “A Study on Full-Mesh WDM Network Topology”, The Institute of Electronics, Information and Communication Engineers, B-10-119, p. 342, 2000.
K. Noguchi et al., “AWG-STAR Network Based on Grouped Wavelength Path Routing”, The Institute of Electronics, Information and Communicaiton Engineers, B-12-2, p. 442, 2002.
K. Kato et al., “Full-Mesh Network Based on Cyclic Frequency Arrayed Waveguide Grating”, NTT Research and Development, vol. 49, No. 6, pp. 298-308, 2000 (English Abstract).
K. Tanaka et al., “Scalability of AWGSTAR Optical Network”, NTT Research and Development, vol. 49, No. 6, pp. 318-323, 2000 (English Abstract).
Y. Sakai et al., “Optical Interface Board for Wavelength-Division Multiplexing”, NTT Research and Development, vol. 49, No. 6, pp. 324-330, 2000 (English Abstract).
M. Matsuoka et al., “The Intranet Joint Experiment Using Optical Wavelength Routing Technology is Started”, NTT Technical Journal, vol. 14, No. 10, pp. 50-53, 2002.
M. Matsuoka et al., “Wavelength Routing Full-Mesh Network AWG-STAR”, NTT Technical Journal, vol. 14, No. 2, pp. 55-61, 2002.
News release, “NTT Develops Logical-Topology Reconfigurable WDM Network System” URL:http://www.ntt.co.jp
ews
ews03/0309/030917.html, Sep. 17, 2003 (Japanese version).
News release “NTT Develops Logical-Toploloy Reconfigurable WDM Network System”, URL:http://www.ntt.co.jp
ews
ews03e/0309/030917.html, Sep. 17, 2003 (English version).
Press release “The Sale of an AWG Router Which Becomes a Key for a Next-Generation Optical Network is Started.”, URL:http://www.nel.co.jp
ew/information/2003—03—20/html, Mar. 20, 2003.
R. Ramaswami et al., “Optical Networks”, p. 340-343, Morgan Kaufmann Publishers Inc., 1998.
International Search Report for PCT/JP2004/001891; ISA/JP; Dated: May 24, 2004.
Matsuoka Morito
Moriwaki Osamu
Noguchi Kazuto
Okada Akira
Sakamoto Takashi
Bello Agustin
Harness & Dickey & Pierce P.L.C.
Nippon Telegraph and Telephone Corporation
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