Optical fibre for wavelength division multiplexed system and manufacturing method thereof

A manufacturing method and optical fiber technology, which are applied in wavelength division multiplexing systems, electromagnetic wave transmission systems, transmission systems, etc., can solve the problems of complicated pipelines in urban systems, difficulty in laying long lengths, and no implementation, and reduce the amount of waveform distortion. , Good manufacturability, guaranteeing the effect of transmission loss
CN1501619AActive Publication Date: 2004-06-02FURUKAWA ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FURUKAWA ELECTRIC CO LTD
Publication Date
2004-06-02

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Abstract

An optical fiber having a length of 1 km or more with average transmission loss in a wavelength band of 1383 nm being less than average transmission loss in a wavelength band of 1310 nm, wherein a maximum value of any 1 km section loss in the wavelength band of 1383 nm does not exceed the average transmission loss by 0.03 dB / km or more.
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Description

technical field

[0001] The present invention relates to an optical fiber for wavelength division multiplex transmission (WDM), in particular to an optical fiber for metropolitan systems and a manufacturing method thereof. Background technique

[0002] Hitherto, as far as optical transmission using optical fibers is concerned, researches on techniques for increasing the transmission capacity have been made.

[0003] Since the transmission loss of optical fiber is generally the smallest near the wavelength of 1550nm, it is desired to use this wavelength band for light transmission, and a scatter conversion (dispersion shift) fiber (DSF) with zero scattering wavelength near the wavelength of 1550nm has been developed. Using this optical fiber, it is possible to perform optical transmission with a transmission capacity of several Gbps in the wavelength band of 1.55 μm.

[0004] Also, in recent years, research and development on wavelength division multiplexing (WDM) optical tra...

Claims

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