Mixed Bypass optical structure in EDFA

A technology of optical structure and pumping light, which is applied in the field of optical communication, can solve problems such as low pumping efficiency, waste of pumping light, and degradation of optical indicators, and achieve the effects of avoiding leakage and improving pump utilization

Active Publication Date: 2022-04-15
GUANGXUN SCI & TECH WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to avoid the leakage of residual pump light or damage or even damage to optical devices in the prior art, which will not only waste pump light and cause low pump efficiency, but also introduce additional wavelength division The problem that the device causes the deterioration of the optical index

Method used

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  • Mixed Bypass optical structure in EDFA
  • Mixed Bypass optical structure in EDFA
  • Mixed Bypass optical structure in EDFA

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Experimental program
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Effect test

Embodiment 1

[0047] Embodiment 1 of the present invention provides a hybrid Bypass optical structure in EDFA, refer to image 3 structure shown, it should be noted that the corresponding image 3 In order to be more in line with the actual situation as an example, some conventional components are added to make the entire optical path structure more complete. However, as a person skilled in the art, it should not be taken as a limiting factor directly to the scope of the technical solution. Those that play a role in limiting the scope should still be determined based on the relationship between the core structures of the topics, including:

[0048] Use the first pump laser 1-1 to forward pump the first section of erbium fiber 3-1;

[0049] Use the second combiner 2-2 to unload the first residual pump light emitted by the first pump laser 1-1 and passing through the first section of erbium fiber 3-1;

[0050] The first residual pump light and the second pump laser 1-2 enter the four-port p...

Embodiment 2

[0068] On the basis of providing the basic solution described in Embodiment 1, the embodiment of the present invention starts from a derived equivalent technical scenario, and expounds the common inventive concept in the application of Embodiment 1, however, based on different optical network architectures The implementation content of the technical solution, therefore, the embodiment of the present invention also proposes another hybrid Bypass optical structure in EDFA, such as Figure 4 shown, including:

[0069] Use the first pump laser 1-1 to forward pump the first section of erbium fiber 3-1;

[0070] Use the fourth combiner 2-4 to unload the first residual pumping light emitted by the first pump laser 1-1 and passing through the first section of erbium fiber 3-1 and the second section of erbium fiber 3-2 ;

[0071] The first residual pump light and the second pump laser 1-2 enter the four-port pump coupler 5, and after power coupling is completed, the reverse redistrib...

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Abstract

The invention relates to the technical field of optical communication, and provides a mixed Bypass optical structure in an EDFA (erbium-doped fiber amplifier). A first pumping laser is used for pumping the first section of erbium fiber in the forward direction; first residual pump light which is emitted by the first pump laser and passes through the first section of erbium fiber is unloaded by using a second combiner and splitter; the first residual pump light and the second pump laser enter a four-port pump coupler, and after power coupling is completed, forward redistribution pump light is transmitted to the second section of erbium fiber according to the proportion, and reverse redistribution pump light is transmitted to the third section of erbium fiber according to the proportion. The residual pump light is fully utilized by ingeniously designing a light path, the pump utilization rate is improved, and leakage of the residual pump light and even damage to an optical device are avoided.

Description

【Technical field】 [0001] The invention relates to the technical field of optical communication, in particular to a hybrid Bypass optical structure in an EDFA. 【Background technique】 [0002] With the development of current communication technology, the miniaturization requirements for EDFA products are getting higher and higher; not only are EDFA products required to place required optical devices, electrical devices, erbium fibers, mechanical parts and other devices in a limited space, but also require Reduce the overall power consumption of the product. This requires the selection of as few devices as possible to increase the pump utilization as much as possible. Therefore, it is very necessary to improve the pump utilization on the basis of satisfying the optical index. [0003] In order to avoid leakage of residual pump light or damage or even damage to optical devices, it is usually necessary to use a separate wavelength splitter to remove the residual pump light, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/04H01S5/02251
CPCH01S5/041H01S5/02251
Inventor 邓福星陈志陈俊张亚洲万琼杜刚
Owner GUANGXUN SCI & TECH WUHAN
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