CN115567112B - Optical fiber signal transmission system based on multi-path amplification - Google Patents
Optical fiber signal transmission system based on multi-path amplification Download PDFInfo
- Publication number
- CN115567112B CN115567112B CN202211120167.2A CN202211120167A CN115567112B CN 115567112 B CN115567112 B CN 115567112B CN 202211120167 A CN202211120167 A CN 202211120167A CN 115567112 B CN115567112 B CN 115567112B
- Authority
- CN
- China
- Prior art keywords
- amplification
- transmission
- input
- relay
- amplifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention provides an optical fiber signal transmission system based on multi-path amplification, which comprises an input end amplification module, a transmission detection module, a plurality of relay amplification modules and an output supplementing module, wherein the input end amplification module is connected with the transmission detection module; the input end amplifying module is arranged at the input end of the transmission line and is used for detecting the optical signals input by the input end and then amplifying the optical signals input by the input end for transmission; the transmission detection module is used for detecting parameters of a transmission line; the invention processes the transmission of the optical signal in a sectional way by integrating a plurality of influencing factors on the transmission line, so as to solve the problems of poor amplifying and calculating effect and large error of output compensation in the existing optical fiber signal transmission process.
Description
Technical Field
The invention relates to the technical field of signal transmission, in particular to an optical fiber signal transmission system based on multi-path amplification.
Background
Optical fiber transmission, i.e. data and signal transmission using optical fiber as medium. The optical fiber not only can be used for transmitting analog signals and digital signals, but also can meet the requirement of video transmission. Optical fiber transmission is generally carried out by using an optical cable, the data transmission rate of a single optical fiber can reach several Gbps, and the transmission distance can reach several tens of kilometers without using a repeater. The optical amplification technique refers to the implementation of population inversion (excluding nonlinear fiber amplifiers) under the action of pumping energy (electrical or optical), and then the amplification of incident light by stimulated radiation.
In the prior art, the amplification process of the existing optical signal is only carried out through a preset amplification ratio in the transmission process, but the original amplification method has a certain error for the final output result, the optical signal can be influenced by a plurality of factors in the transmission process, the existing optical signal transmission amplification technical scheme is simple, the amplified output error is larger, and the method is not applicable to the field with high optical fiber signal transmission precision requirement.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an optical fiber signal transmission system based on multi-path amplification, which is used for carrying out sectional type processing on the transmission of an optical signal through integrating a plurality of influencing factors on a transmission line so as to solve the problems of poor amplification calculation effect and large output compensation error in the existing optical fiber signal transmission process.
In order to achieve the above object, the present invention is realized by the following technical scheme: the optical fiber signal transmission system based on multi-path amplification comprises an input end amplification module, a transmission detection module, a plurality of relay amplification modules and an output supplementing module;
the input end amplifying module is arranged at the input end of the transmission line and is used for detecting the optical signals input by the input end and then amplifying the optical signals input by the input end for transmission;
the transmission detection module is used for detecting parameters of a transmission line;
the relay amplification modules are respectively arranged between an input end and an output end of the transmission line and are used for detecting optical signals in the transmission process and then amplifying the optical signals in the transmission process for transmission;
the output supplementing module is arranged at the output end of the transmission line and is used for detecting the optical signals output by the output end, processing the detection results of the signals output by the output end and then supplementing and amplifying the signals output by the output end.
Further, the input amplification module is configured with an input amplification strategy, the input amplification strategy comprising: processing the input optical signal to obtain a decibel value of the input optical signal;
then, the distance between the input end and the next relay amplifying module is acquired, the distance is set to be a first distance, and the decibel value and the first distance of the input signal are substituted into an input amplifying formula to obtain an input amplifying value;
and amplifying the signal input by the input end according to the input amplification value, and transmitting the amplified signal.
Further, the input amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein DB sf To input the amplified value, DB sr For the decibel value of the input optical signal, S1 is a first distance, d1 is an amplification conversion coefficient of the input optical signal, and S1 is an amplification conversion index of the first distance.
Further, the transmission detection module is configured with a transmission detection policy, the transmission detection policy comprising: detecting the optical signal transmitted by the first distance to obtain the decibel value of the optical signal at the tail end of the first distance;
and then obtaining the line core diameter of the transmission line, and substituting the decibel value of the optical signal at the tail end of the first distance, the line core diameter, the first distance and the decibel value of the input optical signal into a line loss coefficient formula to obtain the transmission loss coefficient.
Further, the loss factor formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein Xcs is the transmission loss factor, DB s1m The db value of the optical signal at the end of the first distance is Rxl, which is the line core diameter, and x1 is the loss compensation value.
Further, the relay amplification module is configured with a relay amplification strategy, the relay amplification strategy comprising: obtaining the distance between the current relay amplifying module and the next relay amplifying module, obtaining the distance between the last group of relay amplifying modules and the output end, and setting the two distances as the relay mutual distance;
obtaining the decibel value of the optical signal detected by each group of relay amplifying modules, setting the decibel value as a relay decibel value, and substituting the relay decibel value, the relay mutual distance and the transmission loss coefficient into a relay amplifying formula to obtain a relay amplifying value;
and amplifying the optical signal according to the relay amplification value and transmitting the amplified optical signal.
Further, the relay amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein DB zf For relaying the amplified value, DB zj And d2 is a relay amplification compensation value.
Further, the output replenishment module is configured with an output replenishment strategy comprising: firstly, acquiring a decibel value of an optical signal at an output end, and setting the decibel value as an output decibel value; then, the distance between the input end and the output end is acquired, and the distance is set as a transmission distance; acquiring the number of relay amplifying modules;
substituting the decibel value, transmission distance, the number of relay amplifying modules and transmission loss coefficient of an input optical signal into an output amplifying formula to obtain an output amplifying coefficient;
and multiplying the output decibel value with the output amplification coefficient to obtain an output amplification result.
Further, the output amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein X is sc To output the amplification factor, scs is the transmission distance, psl is the number of relay amplification modules.
The invention has the beneficial effects that: the input end amplifying module is arranged at the input end of the transmission line, the optical signals input by the input end can be detected through the input end amplifying module, then the optical signals input by the input end are amplified and then transmitted, and the parameters of the transmission line can be detected through the transmission detecting module; the invention relates to a method for detecting optical signals in a transmission line, which comprises the steps of arranging a plurality of relay amplifying modules on the transmission line, detecting optical signals in the transmission process through the relay amplifying modules, amplifying the optical signals in the transmission process, transmitting the optical signals, arranging an output supplementing module at an output end of the transmission line, detecting the optical signals output by the output end through the output supplementing module, processing the detection result of the output signals of the output end, and supplementing and amplifying the output signals of the output end.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a modular distribution connection of the system of the present invention;
fig. 2 is a system schematic block diagram of the present invention.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1 and 2, the present invention provides an optical fiber signal transmission system based on multi-path amplification, which performs sectional processing on optical signal transmission by integrating multiple influencing factors on a transmission line, so as to solve the problems of poor amplification calculation effect and large output compensation error in the existing optical fiber signal transmission process.
The transmission system comprises an input end amplifying module, a transmission detection module, a plurality of relay amplifying modules and an output supplementing module.
The input end amplifying module is arranged at the input end of the transmission line and is used for detecting the optical signals input by the input end and then amplifying the optical signals input by the input end for transmission; the input amplification module is configured with an input amplification strategy, the input amplification strategy comprising: processing the input optical signal to obtain a decibel value of the input optical signal; then, the distance between the input end and the next relay amplifying module is acquired, the distance is set to be a first distance, and the decibel value and the first distance of the input signal are substituted into an input amplifying formula to obtain an input amplifying value; the input amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein DB sf To input the amplified value, DB sr For the decibel value of the input optical signal, S1 is a first distance, d1 is an amplifying conversion coefficient of the input optical signal, d1 is an amplifying conversion index of the first distance, S1 is between 0 and 1, the signal input by the input end is amplified according to the input amplifying value, the amplified signal is transmitted, the input end amplifying strategy is used for calculating the transmission loss of the input end and the next relay amplifying module, and after the transmission loss of the section is obtained, the transmission loss can be referred to for the loss between the subsequent relay amplifying modules and the loss between the relay amplifying module and the output end.
The transmission detection module is used for detecting parameters of a transmission line; the transmission detection module is configured with transmission detectionA measurement strategy, the transmission detection strategy comprising: detecting the optical signal transmitted by the first distance to obtain the decibel value of the optical signal at the tail end of the first distance; then, obtaining a line core diameter of a transmission line, and substituting a decibel value of an optical signal at the tail end of a first distance, the line core diameter, the first distance and a decibel value of an input optical signal into a line loss coefficient formula to obtain a transmission loss coefficient, wherein the loss coefficient formula is configured as follows:the method comprises the steps of carrying out a first treatment on the surface of the Wherein Xcs is the transmission loss factor, DB s1m The optical signal is a decibel value of an optical signal at the end of the first distance, rxl is a line core diameter, x1 is a loss compensation value, wherein the value range of x1 is between 0.5 and 1.5, transmission lines between a plurality of relay amplifying modules and between the relay amplifying modules and an output end belong to the most conventional transmission line, the loss of the line can refer to the transmission loss between the input end and the first relay amplifying module, and the reference of the transmission loss can be improved by increasing the parameters of the transmission line, so that the accuracy of transmission amplification is improved.
The relay amplification modules are respectively arranged between an input end and an output end of the transmission line and are used for detecting optical signals in the transmission process and then amplifying the optical signals in the transmission process for transmission; the relay amplification module is configured with a relay amplification strategy, the relay amplification strategy comprising: obtaining the distance between the current relay amplifying module and the next relay amplifying module, obtaining the distance between the last group of relay amplifying modules and the output end, and setting the two distances as the relay mutual distance; obtaining the decibel value of the optical signal detected by each group of relay amplifying modules, setting the decibel value as a relay decibel value, and substituting the relay decibel value, the relay mutual distance and the transmission loss coefficient into a relay amplifying formula to obtain a relay amplifying value; the relay amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein DB zf For relaying the amplified value, DB zj Is a relay decibel value, d2 is a middleAnd amplifying the compensation value, wherein the value of d2 is set by referring to the transmission loss coefficient, the specific setting range is 1-2, and amplifying and transmitting the optical signal according to the amplifying value of the relay.
The output supplementing module is arranged at the output end of the transmission line and is used for detecting the optical signals output by the output end, processing the optical signals according to the detection result of the signals output by the output end and supplementing and amplifying the output signals of the output end; the output replenishment module is configured with an output replenishment strategy comprising: firstly, acquiring a decibel value of an optical signal at an output end, and setting the decibel value as an output decibel value; then, the distance between the input end and the output end is acquired, and the distance is set as a transmission distance; acquiring the number of relay amplifying modules; substituting the decibel value, transmission distance, the number of relay amplifying modules and transmission loss coefficient of an input optical signal into an output amplifying formula to obtain an output amplifying coefficient; the output amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein X is sc In order to output the amplification factor, scs is the transmission distance, psl is the number of relay amplification modules, the output decibel value is multiplied with the output amplification factor to obtain an output amplification result, and in the output process, the accuracy of the optical signal output can be further improved by adding the number of relay amplification modules and the distance between the input end and the output end.
Working principle: according to the invention, the output amplification module is arranged at the input end, the optical signal input by the input end can be detected through the input end amplification module, then the optical signal input by the input end is amplified and then transmitted, and the parameter of the transmission line can be detected through the transmission detection module; a plurality of relay amplifying modules are arranged on a transmission line, optical signals in the transmission process can be detected through the relay amplifying modules, then the optical signals in the transmission process are amplified and then transmitted, finally an output supplementing module is arranged at the output end of the transmission line, the optical signals output by the output end can be detected through the output supplementing module, then the output signals of the output end are processed according to the detection result of the output signals of the output end, the output signals of the output end are supplemented and amplified, the sectional optical signal processing is carried out on the input end, the transmission line and the output end, and the accuracy of the final optical signal output can be improved by integrating the parameters of the transmission line;
specifically, the implementation principle of the input amplification module is as follows: processing the input optical signal to obtain a decibel value of the input optical signal; then, the distance between the input end and the next relay amplifying module is acquired, the distance is set to be a first distance, and the decibel value and the first distance of the input signal are substituted into an input amplifying formula to obtain an input amplifying value; and amplifying the signal input by the input end according to the input amplification value, and transmitting the amplified signal.
Specifically, the implementation principle of the transmission detection module is as follows: detecting the optical signal transmitted by the first distance to obtain the decibel value of the optical signal at the tail end of the first distance; and then obtaining the line core diameter of the transmission line, and substituting the decibel value of the optical signal at the tail end of the first distance, the line core diameter, the first distance and the decibel value of the input optical signal into a line loss coefficient formula to obtain the transmission loss coefficient.
Specifically, the implementation principle of the relay amplification module is as follows: obtaining the distance between the current relay amplifying module and the next relay amplifying module, obtaining the distance between the last group of relay amplifying modules and the output end, and setting the two distances as the relay mutual distance; obtaining the decibel value of the optical signal detected by each group of relay amplifying modules, setting the decibel value as a relay decibel value, and substituting the relay decibel value, the relay mutual distance and the transmission loss coefficient into a relay amplifying formula to obtain a relay amplifying value; and amplifying the optical signal according to the relay amplification value and transmitting the amplified optical signal.
Specifically, the implementation principle of the output supplementing module is as follows: firstly, acquiring a decibel value of an optical signal at an output end, and setting the decibel value as an output decibel value; then, the distance between the input end and the output end is acquired, and the distance is set as a transmission distance; acquiring the number of relay amplifying modules; substituting the decibel value, transmission distance, the number of relay amplifying modules and transmission loss coefficient of an input optical signal into an output amplifying formula to obtain an output amplifying coefficient; multiplying the output dB value by the output amplification factor to obtain an output amplification result
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The optical fiber signal transmission system based on multi-path amplification is characterized by comprising an input end amplification module, a transmission detection module, a plurality of relay amplification modules and an output supplementing module;
the input end amplifying module is arranged at the input end of the transmission line and is used for detecting the optical signals input by the input end and then amplifying the optical signals input by the input end for transmission;
the transmission detection module is used for detecting parameters of a transmission line;
the relay amplification modules are respectively arranged between an input end and an output end of the transmission line and are used for detecting optical signals in the transmission process and then amplifying the optical signals in the transmission process for transmission;
the relay amplification module is configured with a relay amplification strategy, the relay amplification strategy comprising: obtaining the distance between the current relay amplifying module and the next relay amplifying module, obtaining the distance between the last group of relay amplifying modules and the output end, and setting the two distances as the relay mutual distance;
obtaining the decibel value of the optical signal detected by each group of relay amplifying modules, setting the decibel value as a relay decibel value, and substituting the relay decibel value, the relay mutual distance and the transmission loss coefficient into a relay amplifying formula to obtain a relay amplifying value;
amplifying the optical signal according to the relay amplification value and transmitting the amplified optical signal;
the relay amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein DB zf For relaying the amplified value, DB zj D2 is a relay amplification compensation value, xcs is a transmission loss coefficient, and S1 is a first distance; the output supplementing module is arranged at the output end of the transmission line and is used for detecting the optical signals output by the output end, processing the detection results of the signals output by the output end and then supplementing and amplifying the signals output by the output end.
2. The multi-pass amplification-based optical fiber signal transmission system according to claim 1, wherein the input amplification module is configured with an input amplification strategy comprising: processing the input optical signal to obtain a decibel value of the input optical signal; then, the distance between the input end and the next relay amplifying module is acquired, the distance is set to be a first distance, and the decibel value and the first distance of the input signal are substituted into an input amplifying formula to obtain an input amplifying value;
and amplifying the signal input by the input end according to the input amplification value, and transmitting the amplified signal.
3. The multi-pass amplification-based optical fiber signal transmission system according to claim 2, wherein the input amplification formula is configuredThe method comprises the following steps: DB (database) sf ＝(DB sr ×d1) (S1×s1) The method comprises the steps of carrying out a first treatment on the surface of the Wherein DB sf To input the amplified value, DB sr For the decibel value of the input optical signal, S1 is a first distance, d1 is an amplification conversion coefficient of the input optical signal, and S1 is an amplification conversion index of the first distance.
4. A multi-pass amplification based optical fiber signal transmission system as claimed in claim 3, wherein the transmission detection module is configured with a transmission detection strategy comprising: detecting the optical signal transmitted by the first distance to obtain the decibel value of the optical signal at the tail end of the first distance;
and then obtaining the line core diameter of the transmission line, and substituting the decibel value of the optical signal at the tail end of the first distance, the line core diameter, the first distance and the decibel value of the input optical signal into a line loss coefficient formula to obtain the transmission loss coefficient.
5. The multi-pass amplification based optical fiber signal transmission system according to claim 4, wherein the loss factor formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein Xcs is the transmission loss factor, DB s1m The db value of the optical signal at the end of the first distance is Rxl, which is the line core diameter, and x1 is the loss compensation value.
6. The multi-pass amplification based fiber optic signal transmission system of claim 5, wherein the output replenishment module is configured with an output replenishment strategy comprising: firstly, acquiring a decibel value of an optical signal at an output end, and setting the decibel value as an output decibel value; then, the distance between the input end and the output end is acquired, and the distance is set as a transmission distance; acquiring the number of relay amplifying modules;
substituting the decibel value, transmission distance, the number of relay amplifying modules and transmission loss coefficient of an input optical signal into an output amplifying formula to obtain an output amplifying coefficient;
and multiplying the output decibel value with the output amplification coefficient to obtain an output amplification result.
7. The multi-pass amplification based optical fiber signal transmission system according to claim 6, wherein the output amplification formula is configured to:the method comprises the steps of carrying out a first treatment on the surface of the Wherein X is sc To output the amplification factor, scs is the transmission distance, psl is the number of relay amplification modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120167.2A CN115567112B (en) | 2022-09-15 | 2022-09-15 | Optical fiber signal transmission system based on multi-path amplification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120167.2A CN115567112B (en) | 2022-09-15 | 2022-09-15 | Optical fiber signal transmission system based on multi-path amplification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115567112A CN115567112A (en) | 2023-01-03 |
| CN115567112B true CN115567112B (en) | 2023-08-04 |
Family
ID=84740461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211120167.2A Active CN115567112B (en) | 2022-09-15 | 2022-09-15 | Optical fiber signal transmission system based on multi-path amplification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115567112B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347796A (en) * | 2010-08-03 | 2012-02-08 | 中国移动通信集团广东有限公司 | Optical fiber connection method, optical fiber transmitter, optical fiber receiver and optical fiber connection system |
| CN106788752A (en) * | 2016-12-29 | 2017-05-31 | 浙江大学 | A kind of relay amplification device and its method for realizing long-distance distributed optical fiber sensing |
| CN109449733A (en) * | 2018-12-10 | 2019-03-08 | 昂纳信息技术（深圳）有限公司 | A kind of control system of fiber amplifier |
| CN113810110A (en) * | 2021-11-19 | 2021-12-17 | 北京邮电大学 | Transmission system based on hybrid fiber amplifier |
-
2022
- 2022-09-15 CN CN202211120167.2A patent/CN115567112B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347796A (en) * | 2010-08-03 | 2012-02-08 | 中国移动通信集团广东有限公司 | Optical fiber connection method, optical fiber transmitter, optical fiber receiver and optical fiber connection system |
| CN106788752A (en) * | 2016-12-29 | 2017-05-31 | 浙江大学 | A kind of relay amplification device and its method for realizing long-distance distributed optical fiber sensing |
| CN109449733A (en) * | 2018-12-10 | 2019-03-08 | 昂纳信息技术（深圳）有限公司 | A kind of control system of fiber amplifier |
| CN113810110A (en) * | 2021-11-19 | 2021-12-17 | 北京邮电大学 | Transmission system based on hybrid fiber amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115567112A (en) | 2023-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110336609B (en) | Multi-span optical fiber transmission system optimization method | |
| CN103166708B (en) | A kind of method improving Remote optical pumping amplifier output Optical Signal To Noise Ratio | |
| CN114499679B (en) | Multi-band Raman amplifier design method and system | |
| EP2787668A1 (en) | Method and apparatus for balancing link performance | |
| CN105262540A (en) | Multi-wavelength single span transmission method and system | |
| US20120301146A1 (en) | Equivalent-Link Backward Propagation Method for Nonlinearity Compensation in Fiber Transmission Systems | |
| CN204761440U (en) | Overlength is apart from being bare transmission system | |
| EP3029860A1 (en) | Optical amplification system | |
| CN111106869A (en) | Distributed performance monitoring method for long-distance nonlinear optical fiber transmission system | |
| CN109462435B (en) | Nonlinear effect analysis model and method in system of optical fiber communication system | |
| CN115567112B (en) | Optical fiber signal transmission system based on multi-path amplification | |
| CN102706537A (en) | Device for detecting transient state effect of erbium-doped fiber amplifier | |
| CN107196180A (en) | Cascade long-range optical amplification system | |
| CN204575906U (en) | The backward optoelectric hybrid device of Erbium-Doped Fiber Amplifier (EDFA) | |
| CN101436908A (en) | Method and apparatus for compensating and amplifying optical fibre color dispersion | |
| CN107135035B (en) | Optical power monitoring method using optical receiver and optical module | |
| CN203352601U (en) | Light transmission system in high altitude severe environment | |
| CN204597214U (en) | A kind of mixing discrete highly nonlinear optical fiber amplifier based on two feedback arrangement | |
| CN205283548U (en) | Raman fiber amplifier | |
| CN107528198A (en) | A kind of remote signal Transmission system based on optical fiber | |
| CN108574534B (en) | Radar antenna received signal preprocessing device and preprocessing method | |
| CN213754522U (en) | Unrepeatered transmission system for optical fiber hydrophone array | |
| CN1329267A (en) | Amplifier of wavelength division multiplexing system and method for amplifying light signal | |
| CN114499667A (en) | Device and method for optimizing gain of bidirectional optical amplifier in single-fiber bidirectional optical fiber link | |
| CN104460178B (en) | The four online erbium-doped fiber amplifiers of linearly polarized mode flashlight and operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |