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All optical fiber type electro-optic modulator based on D-shaped double core optical fiber

An electro-optical modulator and dual-core optical fiber technology, applied in the fields of signal processing, optical fiber communication, and special optical fiber, can solve problems such as large loss and complex structure

Inactive Publication Date: 2016-06-15
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to overcome the problems of large loss and complicated structure in the current MZ electro-optic modulator

Method used

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  • All optical fiber type electro-optic modulator based on D-shaped double core optical fiber
  • All optical fiber type electro-optic modulator based on D-shaped double core optical fiber
  • All optical fiber type electro-optic modulator based on D-shaped double core optical fiber

Examples

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Embodiment 1

[0020] An all-fiber electro-optic modulator based on a D-type twin-core fiber, the structure comprising: a D-type twin-core fiber (1), an electro-optic polymer (4), a metal electrode (5), and a voltage loading device (6), wherein , the D-type twin-core optical fiber includes two cores (2) and (3) with different positions. The specific structure is:

[0021] An electro-optic polymer (4) is coated on the surface of the D-type double-core optical fiber (1), and metal electrodes (5) are plated on both sides of the electro-optic polymer and connected with a voltage loading device (6).

[0022] In this embodiment, the all-fiber electro-optic modulator based on the D-type dual-core fiber is connected to the single-mode fiber, and the structure is as follows figure 2 shown. The input end (10) is connected to the central core (13) through a single-mode optical fiber (8), and the output end (11) is connected to the core (12) near the boundary through a single-mode optical fiber (9). ...

Embodiment 2

[0024] An all-fiber electro-optic modulator based on a D-type twin-core fiber, the structure comprising: a D-type twin-core fiber (1), an electro-optic polymer (4), a metal electrode (5), and a voltage loading device (6), wherein , the D-type twin-core optical fiber includes two cores (2) and (3) with different positions. The specific structure is:

[0025] An electro-optic polymer (4) is coated on the surface of the D-type double-core optical fiber (1), and metal electrodes (5) are plated on both sides of the electro-optic polymer and connected with a voltage loading device (6).

[0026] In this embodiment, the all-fiber electro-optic modulator based on the D-type dual-core fiber is connected to the single-mode fiber, and the structure is as follows figure 2 shown. The input end (10) is connected to the central core (13) through a single-mode optical fiber (8), and the output end (11) is connected to the core (12) near the boundary through a single-mode optical fiber (9). ...

Embodiment 3

[0028] An all-fiber electro-optic modulator based on a D-type twin-core fiber, the structure comprising: a D-type twin-core fiber (1), an electro-optic polymer (4), a metal electrode (5), and a voltage loading device (6), wherein , the D-type twin-core optical fiber includes two cores (2) and (3) with different positions. The specific structure is:

[0029] An electro-optic polymer (4) is coated on the surface of the D-type double-core optical fiber (1), and metal electrodes (5) are plated on both sides of the electro-optic polymer and connected with a voltage loading device (6).

[0030] In this embodiment, the all-fiber electro-optic modulator based on the D-type dual-core fiber is connected to the single-mode fiber, and the structure is as follows figure 2 shown. The input end (10) is connected to the central core (13) through a single-mode optical fiber (8), and the output end (11) is connected to the core (12) near the boundary through a single-mode optical fiber (9). ...

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Abstract

The invention discloses an all optical fiber type electro-optic modulator based on a D-shaped double core optical fiber, and belongs to the field of a special optical fiber, optical fiber communication and signal processing. A core (2) in the D-shaped double core optical fiber (1), which is positioned in the center, is connected with an input end single mode optical fiber, and a core (3) close to a boundary is connected with an output end single mode optical fiber. The surface of the D-shaped double core optical fiber (1) is coated with an electro-optical polymer (4), and both sides of the electro-optical polymer are plated with metal electrodes (5) and are connected with voltage loading devices (6). When voltages (6) are loaded, a refractive index of the electro-optical polymer (4) is changed along with the voltages, the core (3) close to the electro-optical polymer (4) is sensitive to change of the refractive index of the electro-optical polymer (4), and the core (2) positioned in the center is insensitive to the change of the refractive index of the electro-optical polymer (4). When the voltages (6) loaded to both the ends of the electro-optical polymer (4) are changed, a coupling degree of two cores is changed, so that strength modulation of light can be achieved.

Description

technical field [0001] The invention relates to an all-fiber electro-optic modulator based on a D-type double-core fiber, belonging to the fields of special optical fiber, optical fiber communication and signal processing. Background technique [0002] The rapid development of modern communication, electronics and computer technology is inseparable from the support of optical fiber communication network, and frequency conversion, modulation, switching and deflection in optoelectronic technology are indispensable technologies in the process of optical information processing. Therefore, high-speed electro-optic modulators have become irreplaceable and important devices in optical communication networks. Electro-optic modulation is due to the electro-optic effect of the medium (Pockels effect or Kerr effect, etc.), when an electric field is applied to the electro-optic medium region, its refractive index will change, which will cause changes in the phase and light intensity of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/065
CPCG02F1/065
Inventor 王建帅裴丽翁思俊吴良英
Owner BEIJING JIAOTONG UNIV
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