A kind of semiconductor core optical fiber preparation method

A technology of semiconductor and core optical fiber, applied in cladding optical fiber, optical waveguide and light guide, etc., can solve the problems of undeveloped multi-combination and multi-structure optical fiber semiconductor devices, single structure, etc., achieve orderly structure, low preparation cost, and process short effect

Active Publication Date: 2021-07-20
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] At present, the in-fiber assembly of semiconductor devices is mainly researched on one or two kinds of semiconductor materials, and the structure is relatively simple. Multi-combination and multi-structure in-fiber semiconductor devices have not been developed yet.

Method used

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  • A kind of semiconductor core optical fiber preparation method
  • A kind of semiconductor core optical fiber preparation method
  • A kind of semiconductor core optical fiber preparation method

Examples

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preparation example Construction

[0065] A method for preparing a semiconductor core optical fiber, comprising the steps of:

[0066] S1: Prepare at least two fiber inserts, the at least two fiber inserts are semiconductor single-core optical fiber, semiconductor material core rod, metal material core rod, composite core rod of multiple metal materials, combination of semiconductor material and metal material at least one of the mandrels;

[0067] S2: disposing the at least two optical fiber inserts in the cavity of the glass sleeve to form a preform, and hot drawing the preform at high temperature to obtain an assembled optical fiber;

[0068] S3: Locally heating the assembled optical fiber, so that at least part of the fiber insert material is condensed into microspheres, and gradually becomes an orderly discrete state, and other unmelted fiber inserts are rod-shaped, and the contact of the microspheres is controlled to form a connected state. Or the contact between the microspheres and the unshrunk rod-sha...

Embodiment 1

[0074] Embodiment 1 of the present invention provides a method for preparing an optical fiber, such as Figure 4As shown, the outer layer of the optical fiber is quartz glass, and the inner layer is a Si / Ge double-sphere array structure.

[0075] The preparation method of the optical fiber is specifically as follows:

[0076] S1: Prepare an optical fiber insert, the optical fiber insert in this embodiment is a semiconductor single-core optical fiber, specifically the preparation method is

[0077] Such as Figure 3a , 3b As shown, get the silicon rod 11 and the germanium rod 14 with an outer diameter of 2 mm and a length of 4 cm, two quartz glass rods with an outer diameter of 2 mm and a length of 5 cm, and two quartz tubes with an inner diameter of 2.1 mm, an outer diameter of 40 mm, and a length of 30 cm. Two frosted quartz tubes with an outer diameter of 40mm and an inner diameter of 30mm, after welding the quartz tube and the frosted quartz tube with a flame gun, place ...

Embodiment 2

[0086] Such as Figure 7a , 7b As shown, the assembled optical fiber to be processed in this embodiment has an outer layer of quartz glass and an inner layer of a Si / Ge / Si heterogeneous lateral array structure.

[0087] S1: preparing an optical fiber insert, the optical fiber insert in this embodiment is to prepare a silicon core optical fiber 13 and a germanium core optical fiber 15 by preliminary drawing,

[0088] S2: disposing the at least two optical fiber inserts in the cavity of the glass sleeve to form a preform, and hot drawing at a high temperature to obtain an assembled optical fiber. Specifically, after welding the quartz tube with outer diameter: inner diameter = 11: 5.8mm and the frosted quartz tube with a flame gun, take a quartz glass rod with an outer diameter of 5.7 mm and a length of 5 cm and place it at the lower end of the quartz tube, and use a flame gun to melt the quartz tube. The bottom end is heated and melted. The purpose is to adjust the process p...

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Abstract

The invention discloses an optical fiber preparation method, which relates to the field of semiconductors. At least two optical fiber inserts are prepared; the at least two optical fiber inserts are placed in a cavity of a glass sleeve to form a preform, and the preform is thermally drawn at a high temperature. Prefabricating the preform to obtain an assembled optical fiber; locally heating the assembled optical fiber, so that at least part of the optical fiber insert material is condensed into microspheres, and gradually becomes an orderly discrete state. The balls contact each other to form a connected state, or the microspheres and the unshrunk rod-shaped fiber inserts contact each other to form a connected state, thereby forming a fiber array. The invention is used to realize the preparation of semiconductor optical fiber and the assembly of semiconductor fiber inside the optical fiber. It can organically combine semiconductor materials, metal materials and glass materials and compound them in flexible optical fibers. The prepared multi-material semiconductor fiber array has various structures. Realize the high-speed and high-sensitivity photoelectric detection function in the optical fiber.

Description

technical field [0001] The invention relates to the field of semiconductor core optical fibers, in particular to a preparation method of multi-material semiconductor core optical fibers. Background technique [0002] With the rapid development of optoelectronic technology with semiconductor silicon and germanium as the main matrix materials, multifunctional and highly integrated optoelectronic devices have become the core components in the field of optoelectronics. Semiconductor silicon has many advantages such as high melting point, high hardness, stable properties, excellent thermal sensitivity and photosensitivity, and optical fibers based on silicon cores have many advantages such as high thermal conductivity, high optical damage threshold, and low transmission loss. In addition, due to the ultra-high nonlinearity in silicon materials, silicon core fibers can produce significant nonlinear effects in a very short length. Therefore, silicon core fibers are often used in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/02
CPCG02B6/02
Inventor 陶光明周莹赵淑雅向远卓马庶棋杨旅云苏魏全
Owner HUAZHONG UNIV OF SCI & TECH
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