Telecommunication system and method for wavelength-division mult

Details Telecommunication system and method for wavelength-division mult Telecommunication system and method for wavelength-division mult

1995-11-20

1998-01-27

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359133, 359161, H04J 1402

Patent

active

057127166

ABSTRACT:
A multi-wavelength optical telecommunication method includes the steps of generating at least one optical transmission signal in a predetermined wavelength band, transmitting the optical transmission signal through an optical fiber to a receiving station, receiving the optical transmission signal through a passband filter and filtering the signal to let the transmission signal alone pass. The wavelength band is scanned in order to identify in the band a recognizable portion of the optical spectrum being received, thus determining, based on the operating conditions corresponding to said recognizable spectrum portion, a search range of said transmission signal within which the transmission signal is searched out and recognized based on its spectral profile.

REFERENCES:
patent: 4841519 (1989-06-01), Nishio
Patent Abstracts of Japan vol. 14, No. 383 (E-0966) 1990 & JP-A-02 140 028 (Sharp).
Electronics Letters, vol. 28, No. 3, Jan. 1992, Stevenage GB pp. 216-217.
Database INSPEC, IEE, London, GB Seumura et al pp. 433-436.

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