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Transmitting terminal of multi-channel coherent light communication device and multi-channel coherent light communication device

A technology of coherent optical communication and transmitting end, applied in the information field, can solve the problems that the DSP chip of the device is not packaged together, the overall power consumption of the module is increased, and the heat dissipation capacity of the single board is difficult to meet the demand, etc.

Active Publication Date: 2018-09-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above solution, in order to meet the Tbit rate requirements of a single line card in the future, multiple modules can be placed on a single line card. If the data rate of each module is 100G bits, only 10 modules can meet the Tbit rate of a single board. need
Since each coherent optical module (DCO, Digital coherent optics) needs to use a DSP chip, the overall power consumption of the module is increased compared with the non-coherent client-side module. Therefore, when the number of modules increases, the heat dissipation capacity of the single board is difficult to meet need
At the same time, the power consumption cost of the computer room is also an important part of the operator's operating cost, so it will further increase the operator's cost
At the same time, most of the existing coherent modules use single-channel optical devices and electrical devices, and the device itself and the DSP chip are not packaged together, so it is difficult to achieve multi-channel small size and low power consumption

Method used

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  • Transmitting terminal of multi-channel coherent light communication device and multi-channel coherent light communication device
  • Transmitting terminal of multi-channel coherent light communication device and multi-channel coherent light communication device
  • Transmitting terminal of multi-channel coherent light communication device and multi-channel coherent light communication device

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Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 and figure 2 As shown, in this embodiment, for the convenience of describing the multi-channel optical digital signal processor, a four-channel optical digital signal processor 20 is used, and the four-channel optical digital signal processor 20 includes four digital-to-analog converters 21 . Correspondingly, the multiplexer module 30 includes four modulators 31 .

[0035] In specific settings, such as figure 1 As shown, the four-channel optical digital signal processor 20 provided in this embodiment is arranged on the substrate 10 by ball bonding, and the four digital-to-analog converters 21 are arranged on the same side of the four-channel optical digital signal processor 20, that is, four The four output ports of the channel optical digital signal processor 20 are located on the same side of the four channel optical digital signal processor 20 . The multiplexer module 30 composed of four modulators 31 is arranged on the substrate 10 and is locate...

Embodiment 2

[0038] Such as image 3 and Figure 4 As shown, in this embodiment, for the convenience of describing the multi-channel optical digital signal processor, a four-channel optical digital signal processor 20 is used, and the four-channel optical digital signal processor 20 includes four digital-to-analog converters 21 . Correspondingly, the multiplexer module 30 includes four modulators 31 . In this embodiment, the transmitter and figure 1 Compared with the shown embodiment 1, in addition to the structure and arrangement in the embodiment 1, the transmitting end also includes a multi-channel radio frequency driver module 40 .

[0039] During specific setting, the multi-channel radio frequency driver module 40 is arranged on the substrate 10 and is located between the four-channel optical digital signal processor 20 and the multiplexer module 30. During specific setting, the multi-channel radio frequency driver module 40 It includes a radio frequency driver 41 (Driver) correspo...

Embodiment 3

[0045] Such as Figure 6 and Figure 7 As shown, in this embodiment, for the convenience of describing the multi-channel optical digital signal processor, a four-channel optical digital signal processor 20 is used, and the four-channel optical digital signal processor 20 includes four digital-to-analog converters 21 . Correspondingly, the multiplexer module 30 includes four modulators 31 . In this embodiment, the transmitter and image 3 and Figure 6 Compared with the illustrated embodiment 2, in addition to the structure and arrangement in the embodiment 2, the transmitting end further includes a multi-channel optical amplifier module 50 . or as figure 1 The structure of the transmitting end in the shown embodiment 1 is added with a multi-channel optical amplifier module 50 .

[0046] In a specific configuration, the multi-channel optical amplifier module 50 includes multiple optical amplifiers 51, and in a specific configuration, the multiple optical amplifiers 51 are ...

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Abstract

The invention provides a transmitting terminal of a multi-channel coherent light communication device and a multi-channel coherent light communication device. The transmitting terminal comprises a substrate, a multi-channel light digital signal processor, and a multi-channel modulator module, wherein the multi-channel light digital signal processor is arranged on the substrate, and the multi-channel modulator module is arranged on the substrate; the transmitting terminal further comprises a packaging layer which packages the multi-channel light digital signal processor and the multi-channel modulator module on the substrate, wherein the multi-channel modulator module comprises a modulator which is connected with each channel of the multi-channel light digital signal processor in a one-to-one correspondence mode. According to the technical scheme, the transmitting terminal in the multi-channel coherent light communication device is used as a whole device; compared with the prior art ofadopting one transmitting terminal and one transmitting terminal to form a device, the size of the module can be greatly reduced under the condition of obtaining the same bit rate, so that the transmission capacity of the single board is improved; moreover, the transmitting terminal is independently packaged, the optical crosstalk and the radio frequency crosstalk between the transmitting terminals are reduced compared with the mixed packaging with transmitting and receiving together.

Description

technical field [0001] The present application relates to the field of information technology, and in particular to a transmitting end of a multi-channel coherent optical communication device and the multi-channel coherent optical communication device. Background technique [0002] With the increase of business volume of the network system, the communication system needs to increase the transmission capacity of the system without changing the volume of the rack, so as to realize high-density transmission. By reducing the size of the module, such as the use of standardized CFP (C form-factor pluggable, 100G-shaped pluggable), CFP2 and CFP4 optical modules can increase the data rate per unit volume. For line-side optical modules, modules using coherent technology can support longer transmission distances due to the use of DSP (digital signal processing, optical digital signal processing) algorithm chips to compensate for dispersion. Currently, the corresponding data rate of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50H04B10/516
CPCH04B10/50H04B10/501H04B10/516
Inventor 曹攀曾嘉宏汪永忠熊伟吴双元
Owner HUAWEI TECH CO LTD