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Optical fiber raw material composition, optical fiber, and optical fiber product

A raw material composition and optical fiber core technology, which is applied in the direction of cladding optical fiber, lasers, laser components, etc., can solve the problems of unable to cover the working bandwidth, narrow stimulated emission cross-section, poor working stability of the optical fiber, etc., to improve the service life And work stability, strong anti-deliquescence function, low-loss welding effect

Pending Publication Date: 2022-05-06
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The erbium-doped silica fiber provided by the related technology has a narrow stimulated emission cross-section, and the working bandwidth cannot cover the entire L-band (1565 nm-1625nm), and it is easy to absorb moisture in the air, resulting in poor working stability of the fiber

Method used

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  • Optical fiber raw material composition, optical fiber, and optical fiber product
  • Optical fiber raw material composition, optical fiber, and optical fiber product
  • Optical fiber raw material composition, optical fiber, and optical fiber product

Examples

Experimental program
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preparation example Construction

[0089] In yet another aspect, the embodiments of the present disclosure also provide a method for preparing an optical fiber. The method for preparing an optical fiber includes: using the above-mentioned optical fiber raw material composition provided by the embodiments of the present disclosure to prepare an optical fiber.

[0090] Exemplarily, the preparation method includes: using an optical fiber raw material composition for optical fiber cladding to prepare an optical fiber cladding prefabricated tube. The optical fiber core prefabricated rod is prepared by using the optical fiber raw material composition for the optical fiber core. The optical fiber is prepared by the tube rod method by using the optical fiber cladding prefabricated tube and the optical fiber core prefabricated rod.

[0091] The following is an exemplary description of the operation process of preparing a single-clad optical fiber by the tube-and-rod method:

[0092] (1) Determine the specific compositi...

Embodiment 1

[0099] The present embodiment 1 provides a series of erbium-doped optical fibers, which include an optical fiber core and an optical fiber cladding, wherein the composition of the optical fiber core and the optical fiber cladding is shown in Table 1 and Table 2, and in Table 1 and Table 2 The ratios involved in each component are mole percentages:

[0100] Table 1

[0101]

[0102] Table 2

[0103]

[0104] The preparation steps of the above six kinds of erbium-doped optical fibers involved in embodiment 1 refer to the following description:

[0105] (1) According to the specific composition of the raw material composition for preparing the fiber core and cladding in Table 1, determine the quality of each component wherein, and take each component according to the quality of each component, mix each component, and Grinding in an agate mortar for 30 minutes to make each component grind evenly to obtain a fiber core mixture and a cladding mixture respectively.

[0106] ...

Embodiment 2

[0112] According to the Judd-Oflet theory, it is determined to obtain the stimulated emission cross section of the erbium-doped fiber involved in serial number 1, as attached Figure 7 As shown, the erbium-doped fiber involved in No. 1 has a larger stimulated emission cross-section, which indicates that the erbium-doped fiber involved in No. 1 can be used as a gain medium material for a broadband optical fiber amplifier. Based on this, the present embodiment 2 uses the 1m long erbium-doped optical fiber involved in the serial number 1 as the attached Figure 5 In the shown fiber amplifier, a 1480nm laser is used as a pumping source. When the pump power is 80mW and the signal light power is 1mW, the measured gain spectrum of the fiber amplifier covers 1545nm-1627nm (see Figure 8 ), which means that the gain spectrum of the fiber amplifier can cover the entire L-band (1565-1625nm) and part of the C-band (1530-1565nm), with a wider gain spectrum.

[0113] Based on the same test...

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Abstract

The invention discloses an optical fiber raw material composition, an optical fiber and an optical fiber product, and belongs to the technical field of communication. The optical fiber raw material composition comprises the following components in percentage by mole: 10%-50% of AlF3, 3%-20% of BaF2, 3%-20% of CaF2, 1%-15% of YF3, 3%-20% of SrF2, 3%-20% of MgF2 and 1%-35% of TeO2. The optical fiber raw material composition not only can be used for preparing an optical fiber cladding, but also can cooperate with erbium ions to prepare an erbium-doped optical fiber core, so that the prepared optical fiber is wide in emission cross section and high in deliquescence resistance, and low-loss welding with a silica optical fiber can be realized. The optical fiber prepared from the optical fiber raw material composition provided by the invention can be used in the aspects of middle-infrared band transmission optical fibers, optical fiber amplifiers, optical fiber lasers, optical fiber sensors and the like.

Description

technical field [0001] The present disclosure relates to the technical field of communication, in particular to an optical fiber raw material composition, an optical fiber, and an optical fiber product. Background technique [0002] Optical fiber amplifiers are the core components of long-distance optical fiber communication systems. The communication capacity of optical fiber communication systems is determined by the operating bandwidth of optical fiber amplifiers, and the operating bandwidth of optical fiber amplifiers is mainly limited by the gain bandwidth of optical fibers. At present, erbium-doped fibers are widely used in fiber amplifiers. [0003] The related art provides an erbium-doped silica optical fiber, including an optical fiber core and an optical fiber cladding, wherein the optical fiber core is composed of the following molar percentages: SiO 2 82%-97%, GeO 2 2%-8%, Er 2 o 3 0.01-0.1%, oxides of main group amphoteric elements 0.5-10%. [0004] In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067
CPCH01S3/06716H01S3/06754H01S3/1608H01S3/06766H01S3/0677H01S3/173H01S3/1696H01S3/1698H01S3/1618H01S2301/04H01S3/094046H01S3/0809C03C13/048C03C4/12C03B2201/82C03B37/01211C03B37/01268C03B37/01271C03C13/042G02B6/03694C03C3/325C03C13/044C03C3/323C03B37/027C03C3/23C03C2213/00
Inventor 秦冠仕贾志旭吴圣灵秦伟平操时宜常志武陈瑞山
Owner HUAWEI TECH CO LTD
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