Title:
OPTICAL AMPLIFIER AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/055653
Kind Code:
A1
Abstract:
To solve the problem that the power consumption of optical amplifiers is not optimized over the life time of an amplifier, the optical amplifier includes a gain medium for amplifying a plurality of optical channels, the gain medium including a plurality of cores through which the plurality of optical channels to propagate respectively and a cladding area surrounding the plurality of cores, a monitor that monitors the temperature of the the optical amplifier and producing a monitoring result, a first light source that emits a first light beam to excite the cladding area, a second light source that emits a plurality of second light beams to excite each of the plurality of cores individually, and a controller that controls the first light source and the second light source based on the produced monitoring result.
Inventors:
LE TAILLANDIER DE GABORY EMMANUEL (JP)
NAKAMURA SHIGERU (JP)
YANAGIMACHI SHIGEYUKI (JP)
MATSUMOTO KEIICHI (JP)
NAKAMURA SHIGERU (JP)
YANAGIMACHI SHIGEYUKI (JP)
MATSUMOTO KEIICHI (JP)
Application Number:
PCT/JP2016/004263
Publication Date:
March 29, 2018
Filing Date:
September 20, 2016
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G02B6/02; H01S3/10
Domestic Patent References:
| WO2010079773A1 | 2010-07-15 |
Foreign References:
| US20160254637A1 | 2016-09-01 | |||
| JP2010263026A | 2010-11-18 |
Other References:
H. ONO ET AL.: "Study on gain control of MC -EDFA by using hybrid pumping of cladding- and core-direct-pumping schemes", IEICE TECHNICAL REPORT, vol. 144, February 2015 (2015-02-01), pages 111 - 115, XP009509574
P.M.KRUMMRICH: "Efficient optical amplification for spatial division multiplexing", PROCEEDINGS OF SPIE, vol. 8284, 2012, pages 82840F-1 - 82840F-7, XP060000979
Y. MIMURA ET AL.: "Batch multicore amplification with cladding-pumped multicore EDF", 38TH EUROPEAN CONFERENCE AND EXHIBITION ON OPTICAL COMMUNICATIONS, September 2012 (2012-09-01), XP032544105
Y. TSUCHIDA ET AL.: "Multicore erbium doped fiber amplifier for space division multiplexing", IEEE PHOTONIC SOCIETY SUMMER TOPICAL MEETING SERIES, 8 July 2013 (2013-07-08), pages 103 - 104, XP032491856
P.M.KRUMMRICH: "Efficient optical amplification for spatial division multiplexing", PROCEEDINGS OF SPIE, vol. 8284, 2012, pages 82840F-1 - 82840F-7, XP060000979
Y. MIMURA ET AL.: "Batch multicore amplification with cladding-pumped multicore EDF", 38TH EUROPEAN CONFERENCE AND EXHIBITION ON OPTICAL COMMUNICATIONS, September 2012 (2012-09-01), XP032544105
Y. TSUCHIDA ET AL.: "Multicore erbium doped fiber amplifier for space division multiplexing", IEEE PHOTONIC SOCIETY SUMMER TOPICAL MEETING SERIES, 8 July 2013 (2013-07-08), pages 103 - 104, XP032491856
Attorney, Agent or Firm:
SHIMOSAKA, Naoki (JP)
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