Title:
MODE SCRAMBLER
Document Type and Number:
WIPO Patent Application WO/2017/014195
Kind Code:
A1
Abstract:
Provided is a low-loss mode scrambler that allows for the steady-state mode distribution to be acquired within a short distance even when incident light is smaller than the numerical aperture of fibers to be measured and facilitates switching to the all-mode distribution state in a multi-mode fiber having a numerical aperture of 0.2 or more with a core diameter larger than tens of μm. A single fiber 2 is wound around and bundled on a plurality of bobbins 3a, 3b with a larger radius than the minimum bending radius of the fiber. A twisted portion 5 is formed by rotating the bobbins 3a, 3b and twisting the fiber 2. Thereby, the output acquired from the light entering the fiber is in the steady-state mode.
Inventors:
HYAKUTAKE YASUHIRO (JP)
BEPPU YOSHITADA (JP)
HORIGUCHI KOJI (JP)
IIKUBO TADAHISA (JP)
BEPPU YOSHITADA (JP)
HORIGUCHI KOJI (JP)
IIKUBO TADAHISA (JP)
Application Number:
PCT/JP2016/071031
Publication Date:
January 26, 2017
Filing Date:
July 15, 2016
Export Citation:
Assignee:
ADAMANT CO LTD (JP)
International Classes:
G02B6/00; G02B6/14; G02B6/46
Foreign References:
| JP2000131548A | 2000-05-12 | |||
| JPH0242407A | 1990-02-13 | |||
| JPH03144337A | 1991-06-19 | |||
| JP2012247235A | 2012-12-13 | |||
| JPS53129664A | 1978-11-11 | |||
| JP2007187774A | 2007-07-26 | |||
| JP2015175958A | 2015-10-05 | |||
| JPS5660908U | 1981-05-23 |
Other References:
See also references of EP 3327473A4
Attorney, Agent or Firm:
HOSOI, Isamu et al. (JP)
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