Title:
WAVELENGTH SPLIT MULTIPLEX PASSIVE OPTICAL NET USING BIDIRECTIONAL OPTICAL SPECTRUM SLICING
Document Type and Number:
Japanese Patent JPH08237223
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a wavelength division multiplex passive light network using a bi-directional light spectrum slicing for multi-directional transmission. SOLUTION: A light signal to be transmitted is sliced in terms of a spectrum in both asending and descending directions in the network by using a wavelength division multiplex routing to be defined as a passive light source 12. Incoherent signal sources are included preferably at ends of both directions in the passive light network 12 and a signal provided by the passive light network 12 is sliced in terms of the spectrum according to frequency of light. Down information is transmitted in a conventional data format. Up transmission is separated by sub-carrier multiplexing, time scheduling or wavelength division multiplexing.
Inventors:
TOOMASU EDOWAADO DAASHII
NIKORASU JIEE FURIGO
PATORITSUKU PII IANON
NIKORASU JIEE FURIGO
PATORITSUKU PII IANON
Application Number:
JP27166195A
Publication Date:
September 13, 1996
Filing Date:
October 20, 1995
Export Citation:
Assignee:
AT & T CORP
International Classes:
G02F1/01; H04B10/02; H04B10/08; H04B10/272; H04J3/00; H04J14/00; H04J14/02; H04Q11/00; (IPC1-7): H04J14/00; H04J14/02; G02F1/01; H04J3/00
Attorney, Agent or Firm:
Masao Okabe (2 outside)
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