A kind of PBS ring-core optical fiber for amplifying OAM light beam and its preparation method

A ring core and optical fiber technology, applied in the field of optical fiber, can solve the problems of inability to transmit and amplify OAM beams, and achieve the effects of high refractive index difference, large mode capacity, and large optical fiber bandwidth

Active Publication Date: 2021-07-20
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the PbS-doped fibers disclosed in the prior art can transmit and amplify OAM beams

Method used

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  • A kind of PBS ring-core optical fiber for amplifying OAM light beam and its preparation method
  • A kind of PBS ring-core optical fiber for amplifying OAM light beam and its preparation method
  • A kind of PBS ring-core optical fiber for amplifying OAM light beam and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 , figure 2 , image 3 Shown, a kind of PbS ring-core fiber that amplifies OAM light beam, described PbS ring-core fiber comprises fiber air core 1, PbS doped ring 2 and cladding 3, and the main component of described PbS doped ring 2 is PbS and quartz , the PbS ring-core fiber is prepared by adding a PbS powder high-temperature vaporization deposition process in the improved chemical vapor deposition process, and changing the timing of PbS powder vaporization to prepare a ring-shaped PbS-doped silica fiber, and obtaining the PbS ring-core of the amplified OAM beam optical fiber.

[0039] Further, the high-temperature vapor deposition process specifically includes: using a high temperature of 1700°C to heat the raw material, so that the PbS powder vaporizes into the quartz substrate tube after reaching the boiling point at 1281°C; the PbS ring-core optical fiber is only doped in the ring Matching structure of heterogeneous PbS material; the PbS ring-...

Embodiment 2

[0048] Such as figure 1 , figure 2 , image 3 Shown, a kind of PbS ring-core fiber that amplifies OAM light beam, described PbS ring-core fiber comprises fiber air core 1, PbS doped ring 2 and cladding 3, and the main component of described PbS doped ring 2 is PbS and quartz , the PbS ring-core fiber is prepared by adding a PbS powder high-temperature vaporization deposition process in the improved chemical vapor deposition process, and changing the timing of PbS powder vaporization to prepare a ring-shaped PbS-doped silica fiber, and obtaining the PbS ring-core of the amplified OAM beam optical fiber.

[0049] Further, the high-temperature vapor deposition process specifically includes: heating the raw material at a high temperature of 1900°C, so that the PbS powder vaporizes into the quartz substrate tube after reaching the boiling point at 1281°C; the PbS ring-core optical fiber is only doped in the ring Matching structure of heterogeneous PbS material; the PbS ring-cor...

Embodiment 3

[0058] Such as figure 1 , figure 2 , image 3 Shown, a kind of PbS ring-core fiber that amplifies OAM light beam, described PbS ring-core fiber comprises fiber air core 1, PbS doped ring 2 and cladding 3, and the main component of described PbS doped ring 2 is PbS and quartz , the PbS ring-core fiber is prepared by adding a PbS powder high-temperature vaporization deposition process in the improved chemical vapor deposition process, and changing the timing of PbS powder vaporization to prepare a ring-shaped PbS-doped silica fiber, and obtaining the PbS ring-core of the amplified OAM beam optical fiber.

[0059]Further, the high-temperature vapor deposition process specifically includes: heating the raw material at a high temperature of 1800°C, so that the PbS powder vaporizes into the quartz substrate tube after reaching the boiling point at 1281°C; the PbS ring-core optical fiber is only doped in the ring Matching structure of heterogeneous PbS material; the PbS ring-core...

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Abstract

The invention discloses a PbS ring-core optical fiber for amplifying an OAM light beam. The PbS ring-core fiber comprises an optical fiber air core (1), a PbS doped ring (2) and a cladding (3), and the PbS doped ring ( 2) The main components are PbS and quartz. The PbS ring-core fiber is prepared by adding PbS powder high-temperature vapor deposition process in the improved chemical vapor deposition process, and changing the timing of PbS powder vaporization to prepare ring-shaped PbS-doped silica fiber, and obtain The PbS ring-core fiber that amplifies the OAM beam. The present invention has designed the PbS quantum dot ring-core silica fiber that amplifies the OAM light beam. The fiber has the advantages of high refractive index difference, large mode capacity, wide bandwidth, low loss and high gain. The PbS quantum dot silica fiber is applied to the optical fiber amplifier In, the gain of the fiber amplifier can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of optical fibers, and in particular relates to a PbS ring-core optical fiber for amplifying an OAM light beam and a preparation method thereof. Background technique [0002] With the rapid development of services such as the Internet, cloud computing, and big data, the communication industry's demand for data transmission traffic and bandwidth is increasing rapidly. The capacity of the traditional single-mode optical fiber transmission system is becoming saturated and cannot meet the capacity requirements of future optical communications. Facing the challenge of single-mode fiber capacity crisis, it is imperative to explore new fiber optic communication technologies. Researchers have begun to focus on Space Division Multiplexing (SDM), which uses spatial degrees of freedom to increase the capacity of communication systems. Space division multiplexing technology includes core division multiplexing technolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067C03B37/018C03B37/027
CPCC03B37/018C03B37/01853C03B37/02781C03B2203/32C03B2207/86C03B2207/90H01S3/06729H01S3/06754
Inventor 商娅娜徐灵敏陈振宜康亚男庞拂飞陈娜董艳华文建湘王廷云
Owner SHANGHAI UNIV
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