CN211930636U - Optical adjustable dispersion compensation plug-in card for communication transmission platform - Google Patents
Optical adjustable dispersion compensation plug-in card for communication transmission platform Download PDFInfo
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- CN211930636U CN211930636U CN202020997161.3U CN202020997161U CN211930636U CN 211930636 U CN211930636 U CN 211930636U CN 202020997161 U CN202020997161 U CN 202020997161U CN 211930636 U CN211930636 U CN 211930636U
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Abstract
The utility model discloses a communication is adjustable dispersion compensation plug-in card of light for transmission platform, it includes central processing unit, light signal input port, light signal output port, first optical splitter, first photodiode, first logarithmic amplifier, second optical splitter, second photodiode and second logarithmic amplifier, the adjustable dispersion compensation plug-in card of light still includes erbium-doped fiber amplifier, dispersion compensator and LCD display screen, central processing unit and first optical splitter are connected respectively to erbium-doped fiber amplifier, second optical splitter and central processing unit are connected respectively to the dispersion compensator, the LCD display screen is connected with central processing unit. The utility model discloses can carry out gain and dispersion compensation to the signal, the comprehensive properties is better.
Description
Technical Field
The utility model relates to an optical fiber communication field, concretely relates to communication is adjustable dispersion compensation plug-in card of light for transmission platform.
Background
In recent years, with the rapid development of economy in China and the steady promotion of broadband Chinese strategy in China, the construction of broadband access networks in China accelerates the promotion of optical copper-in and copper-out. With the rapid growth of data services and the increasing demand for transmission bandwidth, 25Gb/s and 40Gb/sDWDM systems have been applied in transmission networks. As is well known, the dispersion tolerance of a 40Gb/sDWDM system is 1/16 of a 10Gb/sDWDM system, although there are several types of code modulation modes in the 25Gb/s and 40Gb/sDWDM systems at present, because of the influence of factors such as technical maturity and cost feasibility, the dispersion tolerances of the currently mature codes such as NRZ and ODB are not very high, and in practical applications, if only a fixed dispersion compensation mode is adopted, because the dispersion coefficient and dispersion slope of conventional dispersion compensation cannot be completely consistent with an optical fiber, the residual dispersion at the receiving end of the system after transmission of an optical fiber of a certain length is easily beyond the dispersion tolerance of the system, and in addition, the protection switching of a line, environmental temperature changes, and the like cause the change of the residual dispersion of a link.
Although the existing plug-in card, such as a 25G plug-in card or a 100G plug-in card, detects the power of the input optical signal and the output optical signal by setting the detection unit, the gain and dispersion compensation cannot be performed on the signals in time, and the function is relatively single.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem to a communication is adjustable dispersion compensation plug-in card of light for transmission platform is provided.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an optical tunable dispersion compensation plug-in card for a communication transmission platform comprises a central processing unit, an optical signal input port, an optical signal output port, a first optical splitter, a first photodiode, a first logarithmic amplifier, a second optical splitter, a second photodiode and a second logarithmic amplifier, wherein the first optical splitter is connected with the optical signal input port, the first photodiode is connected with the first optical splitter, the first logarithmic amplifier is respectively connected with the central processing unit and the first photodiode, the second optical splitter is connected with the optical signal output port, the second photodiode is connected with the second optical splitter, the second logarithmic amplifier is respectively connected with the central processing unit and the second photodiode, the optical tunable dispersion compensation plug-in card further comprises an erbium-doped optical fiber amplifier, a dispersion compensator and an LCD display screen, the erbium-doped fiber amplifier is respectively connected with the central processing unit and the first optical splitter, the dispersion compensator is respectively connected with the erbium-doped fiber amplifier, the second optical splitter and the central processing unit, and the LCD screen is connected with the central processing unit.
In a preferred embodiment of the present invention, the erbium-doped fiber amplifier has the following model: EDFA or EA1600 or WS-EA 1416.
In a preferred embodiment of the present invention, the dispersion compensator is of the type: PS-800 or WS-DCM20-1U 2-FSA.
The utility model has the advantages that:
the utility model discloses can carry out gain and dispersion compensation to the signal, the comprehensive properties is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further explained below.
Referring to fig. 1, the present invention provides an optical tunable dispersion compensating card for communication transmission platform, which includes a central processing unit 100, an optical signal input port 210, an optical signal output port 220, a first optical splitter 310, a first photodiode 320, a first logarithmic amplifier 330, a second optical splitter 410, a second photodiode 420, a second logarithmic amplifier 430, an erbium-doped fiber amplifier 500, a dispersion compensator 600 and an LCD display 700.
And the central processing unit 100 can be plugged with a backboard of the communication transmission platform and can interact data signals and control signals with the intelligent network pipe card after being plugged.
The cpu 100 is also connected to the first logarithmic amplifier 330, the second logarithmic amplifier 430, the erbium-doped fiber amplifier 500 and the dispersion compensator 600, respectively, for controlling their operations.
The first optical splitter 310 is connected to the optical signal input port 210, the first photodiode 320 is connected to the first optical splitter 310, the first logarithmic amplifier 330 is connected to the first photodiode 320, the optical signal input through the optical signal input port 210 is split by the first optical splitter 310 to generate a detection signal, the detection signal is converted into an electrical signal by the first photodiode 320, and then the electrical signal is amplified by the first logarithmic amplifier 330 and transmitted to the central processing unit 100, so that the central processing unit 100 can detect the input optical signal.
The second optical splitter 410 is connected to the optical signal output port 220, the second photodiode 420 is connected to the second optical splitter 410, the second logarithmic amplifier 430 is connected to the second photodiode 420, the optical signal output through the optical signal output port 220 is split by the second optical splitter 410 to be a detection signal, the detection signal is converted into an electrical signal by the second photodiode 420, and then the electrical signal is amplified by the second logarithmic amplifier 430 and transmitted to the central processing unit 100, so that the central processing unit 100 can detect the output optical signal.
The erbium-doped fiber amplifier 500 is connected with the first optical splitter 310, the dispersion compensator 600 is respectively connected with the erbium-doped fiber amplifier 500 and the second optical splitter 410, the erbium-doped fiber amplifier 500 can amplify and gain an input optical signal passing through the first optical splitter 310 or an output optical signal passing through the second optical splitter 410, the dispersion compensator 600 can perform dispersion compensation on the input optical signal passing through the first optical splitter 310 or the output optical signal passing through the second optical splitter 410, and the central processing unit 100 can control the erbium-doped fiber amplifier 500 and the dispersion compensator 600 to work.
Because the plug-in card optical fiber transmission line can cause dispersion when carrying out optical signal transmission thereby produce the transmission optical signal error rate, thereby this application realizes the reasonable compensation of online dynamic dispersion and the gain adjustable amplification of input optical signal through the gain of the amplification and the dispersion value of adjustment optical signal.
In the existing structure of the erbium-doped fiber amplifier 500 and the dispersion compensator 600, the type of the erbium-doped fiber amplifier 500 may be: EDFA or EA1600 or WS-EA1416, the type of dispersion compensator 600 may be: PS-800 or WS-DCM20-1U2-FSA, the present application is directed to the application of the erbium-doped fiber amplifier 500 and the dispersion compensator 600, and therefore detailed descriptions thereof are omitted here for their specific operating principles.
The LCD panel 700 is connected to the cpu 100, and the amplification gain of the erbium-doped fiber amplifier 500 and the dispersion compensated by the dispersion compensator 600 can be directly displayed through the LCD panel 700, which facilitates to know in time.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. An optical tunable dispersion compensation plug-in card for a communication transmission platform, the optical tunable dispersion compensation plug-in card comprises a central processing unit, an optical signal input port, an optical signal output port, a first optical splitter, a first photodiode, a first logarithmic amplifier, a second optical splitter, a second photodiode and a second logarithmic amplifier, wherein the first optical splitter is connected with the optical signal input port, the first photodiode is connected with the first optical splitter, the first logarithmic amplifier is respectively connected with the central processing unit and the first photodiode, the second optical splitter is connected with the optical signal output port, the second photodiode is connected with the second optical splitter, the second logarithmic amplifier is respectively connected with the central processing unit and the second photodiode, the optical tunable dispersion compensation plug-in card is characterized by further comprising an erbium-doped optical fiber amplifier, a dispersion compensator and an LCD display screen, the erbium-doped fiber amplifier is respectively connected with the central processing unit and the first optical splitter, the dispersion compensator is respectively connected with the erbium-doped fiber amplifier, the second optical splitter and the central processing unit, and the LCD screen is connected with the central processing unit.
2. The optically tunable dispersion compensating card for a communications transmission platform according to claim 1, wherein said erbium doped fiber amplifier is of the type: EDFA or EA1600 or WS-EA 1416.
3. An optical tunable dispersion compensating card for a communications transmission platform according to claim 1, wherein the dispersion compensator is of the type: PS-800 or WS-DCM20-1U 2-FSA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020997161.3U CN211930636U (en) | 2020-06-04 | 2020-06-04 | Optical adjustable dispersion compensation plug-in card for communication transmission platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020997161.3U CN211930636U (en) | 2020-06-04 | 2020-06-04 | Optical adjustable dispersion compensation plug-in card for communication transmission platform |
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| Publication Number | Publication Date |
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| CN211930636U true CN211930636U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020997161.3U Active CN211930636U (en) | 2020-06-04 | 2020-06-04 | Optical adjustable dispersion compensation plug-in card for communication transmission platform |
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| CN (1) | CN211930636U (en) |
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- 2020-06-04 CN CN202020997161.3U patent/CN211930636U/en active Active
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