Optical amplifier with variable gain equalization

Details Optical amplifier with variable gain equalization Optical amplifier with variable gain equalization

2006-11-21

2006-11-21

Hughes, Deandra M. (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

Reexamination Certificate

active

07139120

ABSTRACT:
An optical amplifier, provided in a WDM transmission system, contains an amplification medium for amplifying WDM light, a measurement part for measuring at least one input optical power of the WDM light on both input and output sides of the amplification medium, a variable gain equalizer for variably setting a passing-wavelength characteristic, a database for holding data representing wavelength characteristics that respectively correspond to transmission line types, an arithmetic part for computing an inverted passing-wavelength characteristic resulting from a passing-wavelength, based on an acquired transmission line type, the optical power measured by the measurement part, and the data held in the database, and a setting part for setting a passing-wavelength characteristic of the variable gain equalizer, based on the inverted passing-wavelength characteristic computed by the arithmetic part, and with this, capable of controlling optical filters more quickly and amplifying optical signals more efficiently in WDM systems.

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Weik, Martin H. Fiber Optics Standard Dictionary. 3rd Edition. 1997. pp. 814 and 489.

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