Method of making optical fiber

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20010010162A1
SERIAL NO

09725036

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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.OSAKA3880

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuwahara, Kazuya Yokohama-shi, JP 30 52
Nagayama, Katsuya Yokohama-shi, JP 31 139
Onishi, Masashi Yokohama-shi, JP 93 813
Takamizawa, Hiroshi Yokohama-shi, JP 3 15
Tsuchiya, Ichiro Yokohama-shi, JP 48 454

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Patent Info (Count) # Cites Year
 
DRAKA COMTEQ B.V. (1)
* 7930903 Method for manufacturing a preform as well as a method for forming optical fibres from such a preform 1 2008
 
SUMITOMO ELECTRIC INDUSTRIES, LTD. (1)
* 2004/0025,541 Method and apparatus of making optical fiber 1 2003
* Cited By Examiner