Title:
OPTICAL TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JP3811332
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize an economical optical transmission system in which three or more services can be flexibly added and multiplexed and further the efficiency of a band can be improved.
SOLUTION: In this optical transmission system which respectively allocates wavelengths to a service and a user and performs wavelength division multiplex transmission through on optical fiber, wavelengths respectively allocated to three or more services and users are defined in the same wavelength band, a light source for outputting the signal light of each wavelength, a constitution in which an optical multiplexer and demultiplexer used for wavelength multiplex separation does not perform, wavelength control is adopted, and a wavelength band allocated to each service and user and an unallocated wavelength band are set in a range that it not affected by the temperature fluctuation of the oscillation wavelength of a light source.
Inventors:
Hideo Kawada
Toshihiko Sugie
Toshihiko Sugie
Application Number:
JP2000152819A
Publication Date:
August 16, 2006
Filing Date:
May 24, 2000
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04J14/00; H04N7/22; H01S5/12; H04J14/02; (IPC1-7): H04J14/00; H04J14/02; H04N7/22; //H01S5/12
Domestic Patent References:
| JP9233053A | ||||
| JP8018514A | ||||
| JP2040984A | ||||
| JP8335747A | ||||
| JP11150324A |
Attorney, Agent or Firm:
Takumi Iritono
Yasushi Motoyama
Yasushi Motoyama
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