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Optical path device for improving return loss index, and optical device

A technology of photosensitive devices and optical paths, applied in the coupling of optical waveguides, etc., can solve the problems of decreased return loss, affecting optical fiber transmission performance, and shrinking of the photosensitive surface, so as to increase the return loss value, ensure transmission performance, and improve the return loss index Effect

Inactive Publication Date: 2019-01-18
CHENGDU SUPERXON COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development of optical devices to a higher rate, the photosensitive surface is also shrinking, resulting in a continuous decline in return loss, affecting the performance of optical fiber transmission

Method used

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  • Optical path device for improving return loss index, and optical device
  • Optical path device for improving return loss index, and optical device
  • Optical path device for improving return loss index, and optical device

Examples

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Effect test

Embodiment 1

[0039] The embodiment of the present invention provides an optical path device applied to improve the return loss index, such as image 3 A structural schematic diagram of an optical path device applied to improve the return loss index is shown, the optical path device applied to improve the return loss index includes: an optical fiber insertion assembly 10, and a lens assembly 20 separately provided from the optical fiber insertion assembly 10; wherein, Optical fiber insertion assembly 10 is used for inserting optical fiber, and lens assembly comprises at least one lens ( image 3 not shown in);

[0040] Specifically, the fiber insertion assembly 10 is provided with a fiber channel 101; the outlet of the fiber channel 101 faces the lens assembly; wherein, the axis of the fiber channel is parallel to the optical axis of the lens assembly and is set off-axis, so that when the optical fiber is inserted into the fiber channel, the optical fiber The core axis of the fiber is off-...

Embodiment 2

[0056] On the basis of the above embodiments, the embodiments of the present invention further provide an optical device, specifically, the optical device is configured with the optical path device for improving the return loss index described in the first embodiment above.

[0057] Specifically, the optical device described in the first embodiment above is provided with an optical channel, and the optical circuit device used to improve the return loss index is provided in the optical channel.

[0058] Figure 6 A schematic structural diagram of an optical device is shown, wherein, Figure 6 It is a partial cross-sectional view of the optical device, including an optical device 600, an optical channel 601, and an optical fiber insertion assembly 10, a lens assembly 20, and a photosensitive device 30 applied to the optical path device for improving the return loss index. Have Figure 6 It can be seen that the fiber insertion assembly 10, the lens assembly 20 and the photosens...

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Abstract

The invention relates to the technical field of optical devices, and provides an optical path device for improving the return loss index, and an optical device. The optical path device for improving the return loss index comprises an optical fiber insertion assembly, and a lens assembly separated from the optical fiber insertion assembly, wherein the optical fiber insertion assembly is provided with an optical fiber passage, and the exit of the optical fiber passage faces the lens assembly; and the axis of the optical fiber passage and the optical axis of the lens assembly are parallel and non-coaxial, so that when an optical fiber is inserted into the optical fiber passage, the fiber core axis of the optical fiber and the optical axis of the lens assembly are non-coaxial. The optical pathdevice for improving the return loss index and the optical device provided by the invention have the advantages that the fiber core axis of the optical fiber and the optical axis of the lens assemblyare non-coaxial, so that reflected lights received by the lens assembly are mismatched with a fiber core coupling angle after being re-converged through a lens, and most of the reflected lights cannot enter the optical fiber through coupling, which increases a return loss value of the optical fiber, improves the return loss index, and further ensures good transmission performance of the optical fiber.

Description

technical field [0001] The invention relates to the technical field of optical devices, in particular to an optical path device and an optical device applied to improve the return loss index. Background technique [0002] Return loss is usually a parameter used to describe the performance of optical fiber. It means that when the optical signal is transmitted in the optical fiber, it will encounter obstacles and reflect back to the signal transmitting end. The echo is usually a phenomenon that is not conducive to optical fiber transmission, and the optical fiber itself will also It has a certain ability to eliminate this phenomenon. The greater the return loss, the greater the echo that can be eliminated, and the better the performance of the fiber. [0003] At present, optical fiber transmission is widely used in the field of optical communication, especially with the advancement of optical communication engineering, the information capacity of optical networks has increase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/32
CPCG02B6/32
Inventor 李明洋杨标
Owner CHENGDU SUPERXON COMM TECH CO LTD