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Multi-channel optically coupled system

An optical coupling and multi-channel technology, applied in the field of optical communication, can solve the problems of large lens structure size and high cost, and achieve the effects of small size, space saving and high coupling rate

Inactive Publication Date: 2019-10-18
SOURCE PHOTONICS CHENGDU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Light-emitting chips, lenses, free space isolators, and multiplexers are generally arranged on PCBA boards. Due to the relatively large structural size of the lenses, only a small number of lenses can be arranged on a PCBA board of a certain size, which in turn can only achieve fewer channels. Coupling of optical signals, on the contrary, more optical coupling systems are required to achieve fixed rate transmission, which in turn leads to high cost

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0032] see figure 2 , this embodiment schematically provides a multi-channel optical coupling system including four light-emitting chips, four first optical fibers 60, a multiplexer 40 and a polarization-independent isolator 70 arranged in sequence, and one light-emitting chip corresponds to one A first optical fiber 60, and one end face of the first optical fiber 60 corresponding to the light-emitting chip is an arc surface, the other end of the first optical fiber 60 is connected to the input end of the multiplexer 40, and the output end of the multiplexer 40 is connected through the second optical fiber 80 Polarization independent isolator 70.

[0033] see image 3 , the present embodiment schematically provides another multi-channel optical coupling system comprising four light-emitting chips arranged in sequence, four first optical fibers 60, a multiplexer 40 and four polarization-independent isolators 70, one light-emitting chip Corresponding to a first optical fiber ...

Embodiment 2

[0039] can refer to Figure 4 with Figure 5 , on the basis of Embodiment 1, in a more detailed and perfect solution, the first optical fiber 60 is fixedly installed on a base 90 to facilitate the installation and fixing of the first optical fiber 60 . The light-emitting chip adopts a laser chip 10, and the laser chip 10 is installed on the carrier 100, and the laser chip 10 is electrically connected to the laser driver 120 through a wire, so that the laser driver 120 drives the laser chip 10 to emit a laser signal. Of course, if the laser chip 10 is not used to emit light, the laser driver 120 should be replaced with a driver capable of driving the light-emitting chip to emit light.

[0040] based on figure 2 In the shown structure, the output end of the polarization-independent isolator 70 is connected to the second optical fiber 80 , and the end surface of the second optical fiber 80 corresponding to the polarization-independent isolator 70 is an arc surface.

[0041] see...

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Abstract

The invention relates to a multi-channel optically coupled system. The system comprises at least two light-emitting chips and at least two first optical fibers which are arranged in order; one light-emitting chip is corresponding to the first optical fiber. Preferably, one end face, corresponding to the light-emitting chip, of the first optical fiber is an arc surface. The multi-channel opticallycoupled system disclosed by the invention is free from using the lens, the arc of the optical fiber is used for converging an optical signal emitted by the light-emitting chip, the cost is low, and the more the channel number is, and the lower the cost is.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a multi-channel optical coupling system. Background technique [0002] The multi-channel optical coupling system refers to the conversion between electrical-optical-electrical signals through optical isolators, multiplexers and other devices, and the system in which multiple optical signals are combined into one optical signal is widely used in optoelectronic devices. Such as figure 1 As shown, the currently commonly used multi-channel optical coupling system includes a light-emitting chip (usually a laser), a lens, a free space isolator, a multiplexer, and an optical fiber in sequence. The function of the lens is to converge the optical signals emitted by the light-emitting chip , a light-emitting chip needs to correspond to at least one lens. Light-emitting chips, lenses, free space isolators, and multiplexers are generally arranged on PCBA boards. Due to the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42G02B6/43G02B6/26
CPCG02B6/262G02B6/4208G02B6/4215G02B6/4296G02B6/43
Inventor 唐晓辉刘著谢盼云
Owner SOURCE PHOTONICS CHENGDU