Title:
OPTICAL EQUALIZER, METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/194860
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an optical equalizer, a method, and a program which are capable of flattening a tilt characteristic of a wavelength division multiplexed optical signal with a simple configuration. The optical equalizer (11) comprises: a detection unit (111) which detects the tilt characteristic on the basis of the intensities of at least two optical signals among the plurality of optical signals multiplexed into the wavelength division multiplexed optical signal; an optical attenuation unit (112) which attenuates the intensity of the wavelength division multiplexed optical signal by an optical attenuation amount; and an optical amplification unit (113) which amplifies the attenuated wavelength division multiplexed optical signal with a gain characteristic according to the intensity of the attenuated wavelength division multiplexed optical signal, wherein the optical attenuation amount is controlled on the basis of the tilt characteristic and the gain characteristic.
More Like This:
Inventors:
INADA KOJI (JP)
Application Number:
PCT/JP2019/045954
Publication Date:
October 01, 2020
Filing Date:
November 25, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/294; H01S3/10; H04J14/02
Foreign References:
| JP2003046169A | 2003-02-14 | |||
| JP2000031916A | 2000-01-28 | |||
| JP2011009864A | 2011-01-13 | |||
| JP2003348017A | 2003-12-05 | |||
| JP2019056829A | 2019-04-11 |
Other References:
See also references of EP 3952142A4
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
Download PDF: