Title:
アルカリ金属酸化物を含む光ファイバー
Document Type and Number:
Japanese Patent JP2010526749
Kind Code:
A
Abstract:
Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide a silica-based core, said core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, Li2O, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 10 and 10000 ppm by weight, and a silica-based cladding surrounding and directly adjacent the core, the cladding including a region having a lower index of refraction than the remainder of such cladding. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained which exhibits a cable cutoff less than 1400 nm chromatic dispersion at 1550 nm between about 13 and 19 ps/nm/km, and a zero dispersion wavelength less than about 1324 nm.
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Inventors:
Bickham, Scott Earl
Book binder, Danasi
Lee, Min-Jun
Mishra, Snig de Harajuku
Nolan, Daniel A
Tandon, Pushkar
Book binder, Danasi
Lee, Min-Jun
Mishra, Snig de Harajuku
Nolan, Daniel A
Tandon, Pushkar
Application Number:
JP2010507393A
Publication Date:
August 05, 2010
Filing Date:
April 23, 2008
Export Citation:
Assignee:
CORNING INCORPORATED
International Classes:
C03C13/04; G02B6/036
Domestic Patent References:
| JP2003021759A | 2003-01-24 | |||
| JP2010501894A | 2010-01-21 | |||
| JPS6343107A | 1988-02-24 | |||
| JP2007504080A | 2007-03-01 | |||
| JP2006162869A | 2006-06-22 | |||
| JP2003021759A | 2003-01-24 | |||
| JP2010501894A | 2010-01-21 |
Foreign References:
| WO2006112918A1 | 2006-10-26 |
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Go Sakuma