Invention Grant
- Patent Title: Low macrobending loss single-mode optical fibre
- Patent Title (中): 低宏弯损耗单模光纤
-
Application No.: US13995310Application Date: 2010-12-23
-
Publication No.: US09279935B2Publication Date: 2016-03-08
- Inventor: Silvio Frigerio , Ricardo Antunes De Camargo , Lidia Terruzzi
- Applicant: Silvio Frigerio , Ricardo Antunes De Camargo , Lidia Terruzzi
- Applicant Address: IT Milan
- Assignee: PRYSMIAN S.P.A.
- Current Assignee: PRYSMIAN S.P.A.
- Current Assignee Address: IT Milan
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- International Application: PCT/EP2010/070650 WO 20101223
- International Announcement: WO2012/084050 WO 20120628
- Main IPC: C03B37/012
- IPC: C03B37/012 ; C03B37/014 ; C03B37/018 ; G02B6/036
Abstract:
A single-mode transmission optical fiber includes a central core region radially outwardly from a centerline to a radius r1 and having a positive relative refractive index Δ1; a first inner cladding region extending radially outwardly from the central core to a radius r2 and having a negative relative refractive index Δ2; a second inner cladding region extending radially outwardly from the first inner cladding region to a radius r3 and having a non-negative relative refractive index Δ3; an intermediate cladding region extending radially outwardly from the second inner cladding region to a radius r4 having a negative relative refractive index Δ4 larger in absolute value than the relative refractive index Δ2; and an outer cladding region extending radially outwardly from the intermediate cladding region and having a non-negative relative refractive index Δ5; wherein the relative refractive index Δ2 of the first inner cladding region is −0.1·10−3 to −1.0·10−3 and the relative refractive index Δ4 of the intermediate cladding is −3.0·10−3 to −5.0·10−3.
Public/Granted literature
- US20130272670A1 LOW MACROBENDING LOSS SINGLE-MODE OPTICAL FIBRE Public/Granted day:2013-10-17
Information query
