Title:
MULTICHANNEL OPTICAL MODULE
Document Type and Number:
WIPO Patent Application WO/2022/269805
Kind Code:
A1
Abstract:
The present invention suppresses crosstalk between adjacent channels when optical output power is monitored. A multichannel optical module for multiplexing a plurality of wavelength channels for output, comprising: a plurality of light sources that have respective different wavelengths; a plurality of collimator lenses coupled to the respective outputs of the plurality of light sources; a beam splitter coupled to the output of each of the plurality of collimator lenses; a plurality of monitor PDs that monitor optical powers branched from the beam splitter; and a plurality of wavelength filters that are inserted between the beam splitter and the respective ones of the plurality of monitor PDs and that pass therethrough only the respective wavelengths of the light sources coupled by the beam splitter.
Inventors:
KANAZAWA SHIGERU (JP)
NAKANISHI YASUHIKO (JP)
SHINDO TAKAHIKO (JP)
CHIN MEISHIN (JP)
NAKANISHI YASUHIKO (JP)
SHINDO TAKAHIKO (JP)
CHIN MEISHIN (JP)
Application Number:
PCT/JP2021/023794
Publication Date:
December 29, 2022
Filing Date:
June 23, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/564; H04J14/02
Foreign References:
| JP2016178218A | 2016-10-06 | |||
| JP2017034310A | 2017-02-09 | |||
| JP2017098505A | 2017-06-01 |
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
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