OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM - NIPPON TELEGRAPH & TELEPHONE

Title:

OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2018/008635

Kind Code:

A1

Abstract:

An optical fiber according to the present disclosure has a stepped index core that is a pure silica core and, in consideration of practical cutoff conditions, has a relative refractive index difference set at 0.60% or less and in which light in an LPm1 mode with a practical cross-section of 250 µm2 or greater propagates. Light in two or more modes or only LPm1 mode propagates in this optical fiber as a transmission path.

Inventors:

MORI TAKAYOSHI (JP)
SAKAMOTO TAIJI (JP)
YAMAMOTO TAKASHI (JP)
NAKAJIMA KAZUHIDE (JP)
WADA MASAKI (JP)
URUSHIBARA AZUSA (JP)

Application Number:

PCT/JP2017/024499

Publication Date:

January 11, 2018

Filing Date:

July 04, 2017

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Assignee:

NIPPON TELEGRAPH & TELEPHONE (JP)

International Classes:

G02B6/02; H04B10/2587

Domestic Patent References:

WO2012108467A1

2012-08-16

Foreign References:

JP2014517343A	2014-07-17
JP2014530374A	2014-11-17
JP2015045703A	2015-03-12
JP2015096938A	2015-05-21
US5329607A	1994-07-12

Other References:

GENEVAUX ET AL.: "6-mode Spatial Multiplexer with Low Loss and High Selectivity for Transmission over Fer Mode Fiber", OPTICAL FIVER COMMUNICATION CONFERENCE, 22 March 2015 (2015-03-22), pages 2 - 3, XP032784715
SIMONNEAU ET AL.: "5-mode Amplifier with Low Modal Crosstalk for Spatial Mode Multiplexing Transimission with Low Signal Processing Complexity", OPTICAL COMMUNICATION (ECOC, 27 September 2015 (2015-09-27), pages 2 - 3, XP032820281
See also references of EP 3460542A4

Attorney, Agent or Firm:

SHIGA INTERNATIONAL PATENT OFFICE (JP)

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