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Multi-channel optical module based on double LC interfaces

A multi-channel, optical module technology, applied in the field of optical modules, can solve the problems of high comprehensive cost, maturity and multiplexing degree of wavelength division multiplexing scheme, and achieve the advantages of saving the amount of cabling fibers, optimizing the cost, and improving the channel density. Effect

Inactive Publication Date: 2021-09-03
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It will also have a certain impact on the maturity of the industry chain and the degree of multiplexing, resulting in a higher overall cost of the wavelength division multiplexing solution

Method used

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  • Multi-channel optical module based on double LC interfaces
  • Multi-channel optical module based on double LC interfaces
  • Multi-channel optical module based on double LC interfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as image 3 , Figure 4 , Figure 5 As shown, a new type of multi-channel optical module provided in this embodiment includes 4-channel LD modules 1 (numbered 1A, 1B, 1C and 1D) arranged in sequence along the optical axis direction, 4-core optical fiber fan-in devices 3. 4-core optical fiber array 4 (numbered 4A and 4B), and 4-core optical fiber 5 (numbered 5A) coupled with the output end of the 4-core optical fiber fan-in device, and 4-core optical fiber LC connected to the 4-core optical fiber 5A Connector 6 (numbered 6A).

[0029] Among them, between the above-mentioned 4-channel LD module 1 and the input end of the 4-core optical fiber fan-in device 3, four first focusing lenses 2 (numbered 2A, 2B, 2C) respectively corresponding to the 4 channels of the LD module are provided. , 2D), for converging and coupling the 4-way divergent light sources emitted by the LD module to the 4 input ends 31, 32, 33, 34 of the 4-core fiber fan-in device 3, from the 4-core fi...

Embodiment 2

[0032] The number of lasers in the laser array in embodiment 2, the number of detectors in the detector array, the number of cores of the multi-core optical fiber and the channel number of fan-in and fan-out devices are all 2 times the relevant number in embodiment 1, and the laser and detector The arrangement of the devices is a 2*4 rectangular arrangement.

Embodiment 3

[0034]The number of lasers in the laser array in embodiment 2, the number of detectors in the detector array, the number of cores of the multi-core optical fiber and the channel number of fan-in and fan-out devices are all 2 times the relevant number in embodiment 1, and the laser and detector The arrangement of the devices is a 1*8 linear arrangement.

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Abstract

The invention discloses a multi-channel optical module based on double LC interfaces, and belongs to the technical field of optical modules. The optical module comprises an LD module with N channels, a multi-core optical fiber fan-in device with N input ports, a multi-core optical fiber which is coupled with the output port of the multi-core optical fiber fan-in device and is provided with N cores, and a multi-core optical fiber LC connector which is connected with the multi-core optical fiber, which are sequentially arranged along the direction of an output optical axis; the other multi-core optical fiber LC connector, the other N-core multi-core optical fiber connected with the other multi-core optical fiber LC connector, the multi-core optical fiber fan-out device coupled with the other N-core multi-core optical fiber and provided with N output ports, and a detector array connected with the N output ports of the multi-core optical fiber fan-out device, which are sequentially arranged in the direction of the input optical axis. According to the invention, the transmission of the optical module with 2N transceiving channels can be realized by using two multi-core optical fibers with N cores, so that the overall cost is better while the wiring space is saved.

Description

technical field [0001] The invention belongs to the technical field of optical modules, and more particularly relates to a multi-channel optical module based on dual LC interfaces. Background technique [0002] At present, high-speed optical modules mainly include SR4, PSM4, SR8, and SR16 for parallel transmission, and CWDM4, LR4, ER4, FR8, LR8, and ER8 for wavelength division multiplexing transmission schemes. Parallel transmission uses parallel transmission of multiple optical fibers to achieve high-speed transmission of a single module, such as figure 2 shown. For example, SR4 and PSM4 use 4 optical fibers to receive light and 4 optical fibers to emit light to realize 8-channel transmission and reception. SR8 needs to use 8 receptions and 8 transmissions, a total of 16 optical fibers for parallel transmission, and so on. The parallel solution needs to use high-density MPO connectors to connect with optical modules. The higher the number of channels, the higher the densi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/43G02B6/42G02B6/38
CPCG02B6/43G02B6/424G02B6/4246G02B6/4204G02B6/4249G02B6/3885
Inventor 李颖褚俊姚钊邓兰毛明锋田巧丽沈磊张磊兰小波
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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