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Optical fiber connected body with mutually coaxial and inclined cores, optical connector

An optical fiber connection and optical fiber technology, which is applied in the field of mode conditioners and optical transmitters, and can solve the problems of inability to receive signals by the optical receiver.

Inactive Publication Date: 2006-02-01
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, various signals interfere with each other, and there is still a problem that a correct signal cannot be received by the light receiver

Method used

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  • Optical fiber connected body with mutually coaxial and inclined cores, optical connector
  • Optical fiber connected body with mutually coaxial and inclined cores, optical connector
  • Optical fiber connected body with mutually coaxial and inclined cores, optical connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0054] In this embodiment mode, an example in which the present invention is applied to an optical connector will be described. The optical connector of this embodiment is characterized in that, in the optical connector that connects the end faces of a pair of optical fibers to each other, the respective optical fibers are connected so that the centers of the core wires of the optical fibers are eccentric to each other and the incident light beam from one optical fiber is opposite to the other. The axis of a fiber is obliquely incident.

[0055] According to the optical connector of the present embodiment, when a single-mode optical fiber is connected to a multimode optical fiber, abnormal dispersion generated in the multimode optical fiber can be suppressed. Therefore, even at a high transmission speed and a long transmission distance, abnormal dispersion of modes can be suppressed, and transmission with high signal efficiency can be performed. Here, the dispersion generated...

Embodiment approach 2

[0076] In this embodiment, an example in which the present invention is applied to a mode conditioner is described. The mode adjuster of this embodiment is characterized in that it has a splicing portion in which one end of a single-mode optical fiber and one end of a multimode optical fiber are fusion-spliced, and a patch cord having an optical connector is used at the other end of both. Furthermore, the center positions of the core wires of the bonded portion are eccentric to each other, and the central axis of the core wires is tilted to perform fusion bonding.

[0077] Figure 4A It is a block diagram showing the mode adjuster 40 of this embodiment. The mode adjuster 40 of this embodiment is a patch cord type mode adjuster 40 for coupling to the integral optical transceiver 32 . The so-called patch cord refers to an optical fiber cable with optical connectors at both ends. exist Figure 4A In an example, a patch cord is used to connect a short distance from a transmiss...

Embodiment approach 3

[0087] In this embodiment mode, an example in which the present invention is applied to an optical transmitter with a mode adjuster will be described. In the optical transmitter of this embodiment, a split ferrule is disposed on the optical axis of the laser diode, a fiber tip having a single-mode fiber is inserted into the light incident side of the split ferrule, and a plug ferrule including an optical fiber is inserted into the light emitting side of the split ferrule. The fiber optic tip and plug ferrule are matable on opposite end faces. Connect the single-mode fiber in the fiber head and any fiber in the ferrule so that the center positions of their respective core wires are relatively offset and the optical axes are inclined to each other.

[0088] Figure 5A is a cross-sectional view showing the optical transmitter of the present invention. Figure 5A The optical transmitter has a laser diode 51 connected to a plug ferrule 55 with a multimode optical fiber 56 for opt...

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Abstract

The present invention provides an optical fiber connected body including a first optical fiber having a core and a clad, and a second optical fiber having a core and a clad, with its end connected optically to an end of the first optical fiber, in which the core center of the first optical fiber and the core center of the second optical fiber are mutually deviated at the interface of the first optical fiber and the second optical fiber, a light beam entering the second optical fiber from the first optical fiber is inclined to the central axis of the second optical fiber.

Description

technical field [0001] The present invention relates to an optical fiber connecting body in which optical fibers are connected to each other, an optical connector for forming the optical fiber connecting body, and a mode adjuster and an optical transmitter using the optical fiber connecting body. Background technique [0002] For a long time, 10Mbit Ethernet (registered trademark) and 100Mbit Ethernet (registered trademark) have been popularized as a system for connecting computers, and Gigabit Ethernet (registered trademark) with a larger transmission capacity has begun to be introduced. . In order to further perform ultra-high-speed large-capacity transmission, development of 10 Gigabit Ethernet (registered trademark) is also underway. [0003] In order to increase the speed and capacity of data transmission, it is necessary to change the transmission method from electrical signals to optical signals. Furthermore, as an optical signal, it is required to change from an op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/36G02B6/42
Inventor 小林善宏
Owner KYOCERA CORP