Procedure and device for distribution and reception of wavelengt

Details Procedure and device for distribution and reception of wavelengt Procedure and device for distribution and reception of wavelengt

1996-01-23

1997-12-16

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359187, 359124, H04B 1000

Patent

active

056991789

ABSTRACT:
A procedure and devices for distribution and reception of a wavelength reference in optical multichannel networks. A wavelength reference unit transmits a wavelength reference signal to at least one node which has a transmitter laser which needs a wavelength reference. The wavelength reference signal includes a carrier, the wavelength of which is varied continuously within a wavelength band and the carrier is modulated with a signal making a relationship between the momentary wavelength of the carrier and the modulating signal. The node compares the wavelength of its transmitter laser with the carrier and with a correct wavelength to which the node shall be stabilized, thus a relationship is obtained between the wavelength of the transmitter laser and the correct wavelength. The transmitter laser is controlled depending on the obtained relationship.

REFERENCES:
patent: 5239400 (1993-08-01), Liu

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