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Title:
MONITORING APPARATUS FOR OPTICAL AMPLIFIER, OPTICAL AMPLIFYING SYSTEM, AND METHOD OF MONITORING AMPLIFIED OPTICAL SIGNAL
Document Type and Number:
WIPO Patent Application WO/2019/171484
Kind Code:
A1
Abstract:
It is difficult to flatten the gain profile of an optical amplifier without increasing the power consumption, the cost, and the size of the optical amplifier; therefore, a monitoring apparatus for optical amplifier according to an exemplary aspect of the invention includes an optical filtering means for receiving a monitor light beam of the optical amplifier and transmitting a filtered monitor light beam with a set range of wavelength band; a photoelectric conversion means for converting the filtered monitor light beam into a monitoring signal; and a spectrum information generating means for generating spectrum information based on the monitoring signal, the spectrum information including information on a spectrum profile of output of the optical amplifier.

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Inventors:
LE TAILLANDIER DE GABORY EMMANUEL (JP)
MATSUMOTO KEIICHI (JP)
Application Number:
PCT/JP2018/008713
Publication Date:
September 12, 2019
Filing Date:
March 07, 2018
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
H01S3/10; H01S3/067
Foreign References:
JP2006286918A2006-10-19
EP0930677A21999-07-21
US5828486A1998-10-27
JP2016219753A2016-12-22
US20050128467A12005-06-16
US20150085352A12015-03-26
US6690505B12004-02-10
Other References:
See also references of EP 3763005A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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