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Reduced coating diameter chlorine-doped silica optical fibers with low loss and microbend sensitivity

a technology of chlorine-doped silica and optical fibers, which is applied in the field of optical fibers, can solve the problems of increasing the number of channels and the data rate of the channel is near the practical limit, and the increase of the number of fibers is unavoidable, so as to achieve low transmission loss, high transmission capacity, and small size

Pending Publication Date: 2021-07-22
CORNING INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about optical fiber cables that have the capacity to transmit a lot of data with low loss and are smaller than traditional cables. The cables also have small optical fibers that have low loss, resistance to bending, and are strong enough to withstand puncturing.

Problems solved by technology

However, the number of channels and the channel data rate are nearly at the practical limits and increasing the number of fibers is unavoidable.

Method used

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  • Reduced coating diameter chlorine-doped silica optical fibers with low loss and microbend sensitivity
  • Reduced coating diameter chlorine-doped silica optical fibers with low loss and microbend sensitivity
  • Reduced coating diameter chlorine-doped silica optical fibers with low loss and microbend sensitivity

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Embodiment Construction

[0056]Embodiments of the present disclosure are described in detail herein with reference to embodiments thereof as illustrated in the accompanying drawings, in which like reference numerals are used to indicate identical or functionally similar elements. References to “one embodiment,”“an embodiment,”“some embodiments,”“in certain embodiments,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

[0057]The following examples are illustrative, b...

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Abstract

The optical fiber disclosed has a glass fiber including a core and a cladding. The core comprises silica glass doped with chlorine and having an outer radius r1 between 3.0 microns and 10.0 microns. The cladding has an outer radius r4 not less than 50.0 microns. A primary coating surrounding the cladding has a thickness (r5−r4) between 5.0 microns and 20.0 microns, and an in situ modulus less than 0.30 MPa. A secondary coating surrounding the primary coating has a thickness (r6−r5) between 8.0 microns and 30.0 microns, a Young's modulus greater than 1500 MPa, and a normalized puncture load greater than 3.6×10−3 g / micron2. The optical fiber has a 22-meter cable cutoff wavelength less than 1530 nm, an attenuation at 1550 nm of less than 0.17 dB / km, and a bending loss at 1550 nm of less than 3.0 dB / turn.

Description

[0001]This application claims priority under 35 USC § 119(e) from U.S. Provisional Patent Application Ser. No. 62 / 962,600 filed on Jan. 17, 2020 which is incorporated by reference herein in its entirety.BACKGROUNDField[0002]The present disclosure relates to optical fibers and in particular relates to reduced coating diameter chlorine-doped silica optical fibers with low loss and low microbending sensitivity.Background[0003]There is an increasing demand for optical fiber transmission capacity driven by the rapid growth of internet traffic. To increase the transmission capacity, wavelength division multiplexing and spatial division multiplexing have been used to increase the number of transmission channels and advanced modulation formats have been developed to increase the data rate per channel. However, the number of channels and the channel data rate are nearly at the practical limits and increasing the number of fibers is unavoidable. Therefore, coated optical fibers with reduced d...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02B6/02G02B6/028G02B6/036C09D4/00C09D175/04C09D133/14
CPCG02B6/02395G02B6/0281G02B6/03627C09D133/14C09D4/00C09D175/04G02B6/0365C03C25/1065
Inventor BICKHAM, SCOTT ROBERTSONLI, MING-JUNMISHRA, SNIGDHARAJ KUMARTANDON, PUSHKARTANDON, RUCHI SARDA
Owner CORNING INC
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