Nec corporation (20250141581). VARIABLE EQUALIZER, REPEATER, AND EQUALIZING METHOD INCORPORATION BY REFERENCE

VARIABLE EQUALIZER, REPEATER, AND EQUALIZING METHOD INCORPORATION BY REFERENCE

Organization Name

nec corporation

Inventor(s)

Koji Inada of Tokyo JP

VARIABLE EQUALIZER, REPEATER, AND EQUALIZING METHOD INCORPORATION BY REFERENCE

This abstract first appeared for US patent application 20250141581 titled 'VARIABLE EQUALIZER, REPEATER, AND EQUALIZING METHOD INCORPORATION BY REFERENCE

Original Abstract Submitted

a variable equalizer, a repeater, and an equalizing method capable of reducing a cost incurred due to a plurality of equalizers which would otherwise need to be prepared according to the use conditions of the amplifier are provided. a variable equalizer includes an analysis unit configured to analyze a first spectrum of a wavelength-division multiplexed optical signal amplified by an amplifier, a control unit configured to calculate a loss profile indicating a loss for each wavelength based on the first spectrum so that a second spectrum of the wavelength-division multiplexed optical signal to which the loss profile is added becomes flat, and a wss (wavelength selective switch) configured to add the loss profile to the wavelength-division multiplexed optical signal.