US Patent Application No: 2001/0010,162

Number of patents in Portfolio can not be more than 2000

Method of making optical fiber

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Abstract

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When drawing an optical fiber from a preform, positive and negative dispersion sections of an optical fiber are provided, respectively, with target glass diameters different from each other, whereby the positive and negative dispersion sections attain their respective desirable values of chromatic dispersion. Also, the positive and negative dispersion sections and a transient section therebetween are provided, respectively, with values of control constant different from each other, which are used to converge the measured glass diameter to said target diameter, for adjusting the drawing speed, whereby the transient section is shortened. Alternatively, the positive and negative dispersion sections of the optical fiber are provided with respective target drawing speeds different from each other, whereby the transient section is shortened.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SUMITOMO ELECTRIC INDUSTRIES, LTD.OSAKA5830

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuwahara, Kazuya Yokohama, JP 35 28
Nagayama, Katsuya Kanagawa, JP 40 103
Onishi, Masashi Yokohama, JP 130 665
Takamizawa, Hiroshi Yokohama, JP 4 14
Tsuchiya, Ichiro Yokohama, JP 55 386

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
DRAKA COMTEQ B.V. (1)
7,930,903 Method for manufacturing a preform as well as a method for forming optical fibres from such a preform 1 2008