Title:
OPTICAL RECEPTION STATION, OPTICAL COMMUNICATION SYSTEM AND SPREAD CONTROL METHOD
Document Type and Number:
Japanese Patent JP3910003
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an optical reception station, an optical communication system and a spread control method that precisely control the wavelength spread of a transmission line for an optical signal adopting an optical duo binary modulation system.
SOLUTION: The optical reception station 14 is provided with a spread compensation section 21 that receives an optical signal adopting the optical duo binary modulation system to revise the spread, an intensity detection section 22 that detects the intensity of a specific frequency component in the optical signal, and a control section 23 that adjusts the spread of the spread compensation section 21 so that an output of the intensity detection means takes a prescribed extreme value.
Inventors:
Yuichi Akiyama
Hiromi Oi
Joji Ishikawa
Hiromi Oi
Joji Ishikawa
Application Number:
JP2000158708A
Publication Date:
April 25, 2007
Filing Date:
May 29, 2000
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04B10/2507; H04B10/07; H04B10/2519; H04B10/2525; H04B10/2543; H04B10/516; H04B10/61; (IPC1-7): H04B10/02; H04B10/18; H04B10/152; H04B10/142; H04B10/04; H04B10/06
Domestic Patent References:
| JP11088261A | ||||
| JP11346191A | ||||
| JP11088260A | ||||
| JP11251973A | ||||
| JP8139681A | ||||
| JP9501296A |
Attorney, Agent or Firm:
Furuya Fumio
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