Title:
波長多重光伝送システム
Document Type and Number:
Japanese Patent JP4294153
Kind Code:
B2
Abstract:
The present invention has an object to provide a WDM optical transmission system for effectively compensating such as wavelength dispersions of respective wavelength bands, by a simple constitution making use of a hybrid transmission path in case of transmitting a broadband WDM signal light containing a plurality of wavelength bands. To this end, wavelength dispersion characteristics of a hybrid transmission path utilizing a 1.3 mum zero-dispersion SMF and an RDF in the present WDM optical transmission system, are set such that compensation ratios of wavelength dispersion and dispersion slope become approximately 100% for a reference wavelength band which is one of a plurality of wavelength bands; and dispersion compensation fibers capable of compensating wavelength dispersions caused within the hybrid transmission path are inserted into propagation paths, respectively, within an optical amplifier, for the wavelength bands except for the reference wavelength band. In this way, wavelength dispersion compensation for the plurality of wavelength bands can be assuredly performed with a simple constitution.
Inventors:
Toshiki Tanaka
Takao Naito
Takao Naito
Application Number:
JP10415899A
Publication Date:
July 08, 2009
Filing Date:
April 12, 1999
Export Citation:
Assignee:
富士通株式会社
International Classes:
H01S3/10; G02B6/34; H01S3/06; H01S3/067; H04B10/2507; H04B10/2525; H04B10/294; H04J14/00; H04J14/02
Domestic Patent References:
| JP10221562A | ||||
| JP8331049A | ||||
| JP10242943A | ||||
| JP10173263A | ||||
| JP10145298A | ||||
| JP9023187A | ||||
| JP10039154A |
Attorney, Agent or Firm:
Tomijio Sasashima