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Patent Searching and Data


Title:
OPTICAL AMPLIFIER, OPTICAL COMMUNICATION SYSTEM AND OPTICAL AMPLIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/198171
Kind Code:
A1
Abstract:
To provide an optical amplifier capable of performing Raman amplification while suppressing power consumption and a size. A multicore fiber (110) has a double clad structure. The double clad structure includes cores (C1-C7) thorough which the multiplexed optical signal (SIG) is transmitted and a clad (CL1) includes the cores (C1-C7). The light source (130) outputs a pump light (PL) used for amplifying the multiplexed optical signal (SIG) by stimulated Raman scattering in the multicore fiber (110). The pump light (PL) is generated by multiplexing multimode laser lights (L1-L3). The WDM coupler (120) couples the pump light (PL) into the clad (CL1) of the multicore fiber (110).

Inventors:
LE TAILLANDIER DE GABORY Emmanuel (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
MATSUMOTO Keiichi (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2018/015208
Publication Date:
October 17, 2019
Filing Date:
April 11, 2018
Export Citation:
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Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
International Classes:
H01S3/10
Domestic Patent References:
WO2013090549A22013-06-20
Foreign References:
US20160054519A12016-02-25
JP2009031796A2009-02-12
EP0734105A21996-09-25
US20030179440A12003-09-25
JP2011228541A2011-11-10
JP2002270928A2002-09-20
US6999481B12006-02-14
US20150085352A12015-03-26
Attorney, Agent or Firm:
IEIRI Takeshi (HIBIKI IP Law Firm, Asahi Bldg. 5th Floor 3-33-8, Tsuruya-cho, Kanagawa-ku, Yokohama-sh, Kanagawa 35, 〒2210835, JP)
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