Title:
PROBE OPTICAL FIBER AND OPTICAL FIBER LATERAL INPUT/OUTPUT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/216286
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a probe optical fiber and an optical fiber lateral input/output device that make it possible to achieve highly efficient optical input without measuring input efficiency or aligning a probe. The present invention is a probe optical fiber that: has a tip end that is arranged near a bent part of an optical fiber core that has been arranged at an optical fiber lateral input/output device; and inputs light into/receives output of light from the bent part of the optical fiber core. The probe optical fiber is characterized in that, at the bent part of the optical fiber core, light that is emitted from the tip end has an optical intensity profile in which, relative to the optical intensity at the optical axis center, the decrease in optical intensity at locations that are 20 μm from the optical axis is less than 17.6 dB.
Inventors:
UEMATSU TAKUI (JP)
HIROTA HIDENOBU (JP)
IIDA HIROYUKI (JP)
MANABE TETSUYA (JP)
HIROTA HIDENOBU (JP)
IIDA HIROYUKI (JP)
MANABE TETSUYA (JP)
Application Number:
PCT/JP2019/018069
Publication Date:
November 14, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02B6/26; G01M11/00; G02B6/02; G02B6/04; G02B6/28
Domestic Patent References:
| WO1988001067A1 | 1988-02-11 |
Foreign References:
| JP2015057628A | 2015-03-26 | |||
| JPH11326705A | 1999-11-26 | |||
| JPS6116508U | 1986-01-30 | |||
| JPS4810651B1 | 1973-04-05 | |||
| JPS50113239A | 1975-09-05 | |||
| JP2000162450A | 2000-06-16 |
Attorney, Agent or Firm:
OKADA, Kenji et al. (JP)
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