Title:
OPTICAL FIBER AND SLANTED FIBER GRATING INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2017/073670
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to an optical fiber and the like that are suitable for fabricating an SFG having a loss spectrum with a small ripple width. The optical fiber includes: a core region; a first cladding region having a refractive index lower than the refractive index of the core region; a second cladding region having a refractive index lower than the refractive index of the first cladding region; and a third cladding region having a refractive index lower than the refractive index of the core region and higher than the refractive index of the second cladding region, and at least a portion of the first cladding region and at least a portion of the second cladding region both include a photosensitive material.
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Inventors:
NAGANO SHIGEHIRO (JP)
SHIOZAKI MANABU (JP)
SHIOZAKI MANABU (JP)
Application Number:
PCT/JP2016/081889
Publication Date:
May 04, 2017
Filing Date:
October 27, 2016
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G02B6/036; G02B6/02
Domestic Patent References:
| WO1999027401A1 | 1999-06-03 |
Foreign References:
| JP2003302547A | 2003-10-24 | |||
| JP2003131048A | 2003-05-08 | |||
| JPH11231138A | 1999-08-27 | |||
| JP2003107268A | 2003-04-09 | |||
| JP2003255159A | 2003-09-10 | |||
| JP2000009956A | 2000-01-14 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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