Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-12-30
1998-12-29
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359152, 359180, 359189, H04B 1014, H04J 1402
Patent
active
058546995
ABSTRACT:
In a wavelength division multiplexed network having a plurality of nodes and having optical channels at wavelengths .lambda.i, where i=1 . . . N, for transmission of optical signals over optical interconnection means, control for informing the network of which nodes are transmitting at which frequencies and for token holding. Control is provided without the need for a second transmitter at each node and another control channel. Data signals are provided at baseband by keying the optical signal at a data repetition rate. Control signals are imposed on a wavelength .lambda.t of a transmitting node as a subcarrier. Receiver means at each node respond to a .lambda.t from another channel to receive information. The node also includes means for all wavelengths .lambda.i and demodulating the subcarrier therefrom to derive control information. Means are provided for producing controls signals each corresponding to a channel and formatting the serial control sequence so that the data rate for control information does not increase as a function of network traffic.
REFERENCES:
patent: 4330869 (1982-05-01), Robieux
patent: 4710914 (1987-12-01), Robieux
patent: 5212577 (1993-05-01), Nakamura et al.
patent: 5289302 (1994-02-01), Eda
patent: 5301053 (1994-04-01), Shikada
patent: 5327276 (1994-07-01), Shimosaka et al.
patent: 5365344 (1994-11-01), Eda et al.
patent: 5367361 (1994-11-01), Noll et al.
patent: 5369515 (1994-11-01), Majima
patent: 5452115 (1995-09-01), Tomioka
patent: 5612806 (1997-03-01), Su et al.
Brackett, Charles, A. Dense Wavelength Division Multiplexing Netrworks: Principles and Applications, IEEE Journal on Selected Areas in Communications, vol. 8, No. 6, Aug. 1990, pp. 948-964.
Dono, Nicholas, R. et al, A Wavelength Division Multiple Access Network for Computer Communication, IEEE Journal on Selected Areas in Communications, vol. 8, No. 8, Aug. 1990, pp. 983-994.
Goodman, Matthew, S., et al., The Lambdanet Multiwavelength Network: Architecture, applications, and Demonstrations, IEEE Journal on Selected Areas in Communications. vol. 8, No. 6, Aug. 1990, pp. 995-1004.
Wagner, Stuart, s., et al., A Passive Photonic Loop Architecture Employing Wavelength-Division Multiplexing, Bell Communications Research, IEEE Publication No. CH-2535-3/88/0000-1569, Mar. 1988, Ch. 48.1.1, pp. 1589-1573.
Glance, B., et al., Densely Spaced WDM Coherent Optical Star Network, Electronics Letters 13th Aug. 1987, vol. 23, No. 17, pp. 875-876.
Maeda, M.W., et al., Wavelength-division multiple access network based on centralized common-wavelength control, Tuesday Afternoon, Program of Optical Fiber Conference '92, pp. 84-85.
Way, W.I., et al., Self routing WDM high capacity SONET ring network, Tuesday Afternoon, Program of Optical Fiber Conference '92, pp. 86-87.
Su, Shing fong, et al, Performance of Multiple Access WDM Networks with Subcarrier Control Channels, GTE Laboratories, Incorporated, Waltham, Massachuesetts, presentaion more than one year prior to filing of this application.
GTE Laboratories Incorporated
Pascal Leslie
Suchyta Leonard Charles
LandOfFree
Multiplexed subcarrier control in wavelength division multiplexe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiplexed subcarrier control in wavelength division multiplexe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiplexed subcarrier control in wavelength division multiplexe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1428089