CN105812065A - Automatic power adjusting method and device in optical fiber communication system - Google Patents
Automatic power adjusting method and device in optical fiber communication system Download PDFInfo
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- CN105812065A CN105812065A CN201410855453.2A CN201410855453A CN105812065A CN 105812065 A CN105812065 A CN 105812065A CN 201410855453 A CN201410855453 A CN 201410855453A CN 105812065 A CN105812065 A CN 105812065A
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- 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
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Abstract
The invention discloses an automatic power adjusting method in an optical fiber communication system. The attenuation value of an optical fiber in each cross section is acquired. According to acquired attenuation value of an optical fiber in each cross section, the gain of an optical amplifier or an attenuator of a relay node in a corresponding cross section is adjusted. The invention further discloses an automatic power adjusting device in the optical fiber communication system. According to the invention, the device automatically adjusts the gain of a power amplifier and the attenuator according to line attenuation; power changes, which are caused by optical fiber aging and other problems, of a receiving end are prevented; automatic control and real-time power adjustment are realized; and compared with manual adjustment, the method and the device have the advantages of great operability, low difficulty and small impact on a system.
Description
Technical field
The present invention relates to field of network communication, particularly relate to the method and apparatus being automatically adjusted power in optical fiber telecommunications system.
Background technology
In current optical fiber telecommunications system, the power of image intensifer and the decay of optical attenuator of each smooth via node all just immobilize after system building completes, and can't be adjusted at any time.Only when fission occurs the performance that the attenuation change of optical fiber causes photoreceiver time, just can manually the power of some amplifier be adjusted.The change of the decay brought due to the reason such as aging is a process slowly, for changing value single span section little, such as certain system optical fiber attenuation in 5 years is changed to 0.1dB/Km, attendant is difficult to perceive this change, thus cannot be adjusted pointedly, namely ensure that the input power of node downstream after regulating keeps the initial value of configuration；And manual adjustments is for attendant, it is desirable to higher, it is necessary to optical fiber telecommunications system and network management platform are all had gained some understanding just with competent by attendant.Additionally for the optical fiber telecommunications system of distance multi-span, the change of optical fiber attenuation brings impact very seriously, and along with the increase of service life, can cause that system instability, the bit error rate increase.Therefore, the decay how keeping each smooth via node is constant, is a problem demanding prompt solution.
Summary of the invention
Present invention is primarily targeted at and the method and apparatus being automatically adjusted power in a kind of optical fiber telecommunications system is provided, it is intended to solve the optical fiber telecommunications system of distance multi-span, the problem that the system that each smooth via node produces decay and causes is unstable, the bit error rate increases.
For achieving the above object, the method being automatically adjusted power in a kind of optical fiber telecommunications system provided by the invention, the method being automatically adjusted power in described optical fiber telecommunications system comprises the following steps:
Obtain the decay of optical fiber in each span；
Current attenuation value and preset pad value are analyzed, it is judged that whether the pad value of described optical fiber changes；
If it occur that change, then regulate the gain of via node.
Preferably, include before the step of the decay of the optical fiber in each span of described acquisition:
The pad value of the optical fiber in each span preset.
Preferably, described via node includes image intensifer, and described image intensifer includes pre-amplifier and post-amplifier, and the step of the decay of the optical fiber in each span of described acquisition includes:
Collect the Output optical power of described pre-amplifier and the input optical power of described post-amplifier；
Output optical power according to described pre-amplifier and the input optical power of described post-amplifier, calculating current attenuation value, described current attenuation value is the Output optical power difference between the two of input optical power and the described pre-amplifier of described post-amplifier.
Preferably, the described decay according to the optical fiber in each span obtained, the step regulating the image intensifer of via node in corresponding span or the gain of attenuator includes:
Pad value preset with in corresponding span for the pad value of the optical fiber in each span obtained is analyzed, it is judged that whether the pad value of described optical fiber changes；
If it occur that change, then regulate the image intensifer of via node in corresponding span or the gain of attenuator.
Preferably, in the corresponding span of described adjustment, the step of the gain of the image intensifer of via node includes:
Regulate the Output optical power of described prime image intensifer,
In order to solve above-mentioned technical problem, the present invention further provides the device being automatically adjusted power in a kind of optical fiber telecommunications system, described optical fiber telecommunications system is automatically adjusted the device of power, including:
Acquisition module, for obtaining the decay of the optical fiber in each span；
Adjustment module, for the pad value according to the optical fiber in each span obtained, regulates the image intensifer of via node in corresponding span or the gain of attenuator.
Preferably, the device being automatically adjusted power in described optical fiber telecommunications system also includes:
Preset module, for the pad value of the optical fiber in each span preset.
Preferably, described acquisition module includes:
Collector unit, for collecting the Output optical power of described pre-amplifier and the input optical power of described post-amplifier；
Computing unit, input optical power for the Output optical power according to described pre-amplifier and described post-amplifier, calculating current attenuation value, described current attenuation value is the Output optical power difference between the two of input optical power and the described pre-amplifier of described post-amplifier.
Preferably, described adjustment module includes:
Judging unit, for being analyzed pad value preset with in corresponding span for the pad value of the optical fiber in each span obtained, it is judged that whether the pad value of described optical fiber changes；
Regulon, for if it occur that change, then regulating the image intensifer of via node in corresponding span or the gain of attenuator.
Preferably, described regulon, it is additionally operable to if it occur that change, then regulates the Output optical power of described prime image intensifer, it is ensured that the input power of post-amplifier keeps initial value.
The method being automatically adjusted power in optical fiber telecommunications system provided by the invention, by obtaining the pad value of the optical fiber in each span；Pad value according to the optical fiber in each span obtained, regulates the image intensifer of via node in corresponding span or the gain of attenuator.The present invention is automatically adjusted the gain of via node according to Line Attenuation, makes up the receiving terminal changed power that the problem such as fiber ageing is brought；Automatically controlling, power regulates in real time, compares artificial adjustment, and operability is good, difficulty is low, systematic influence is little.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method first embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention；
Fig. 2 is the structural representation that the present invention is automatically adjusted the optical fiber telecommunications system of power；
Fig. 3 is the schematic flow sheet of method the second embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention；
Fig. 4 is the refinement schematic flow sheet of the step of the decay obtaining the optical fiber in each span described in Fig. 1；
Fig. 5 is the pad value described in Fig. 1 according to the optical fiber in each span obtained, and regulates the refinement schematic flow sheet of the step of the image intensifer of via node in corresponding span or the gain of attenuator；
Fig. 6 regulates the refinement schematic flow sheet of the step of the gain of the image intensifer of via node in corresponding span described in Fig. 5；
Fig. 7 is the high-level schematic functional block diagram of the device first embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention；
Fig. 8 is the high-level schematic functional block diagram of device the second embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention；
Fig. 9 is the high-level schematic functional block diagram of acquisition module described in Fig. 7；
Figure 10 is the high-level schematic functional block diagram of adjustment module described in Fig. 7.
The object of the invention realization, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of method being automatically adjusted power in optical fiber telecommunications system, with reference to Fig. 1, Fig. 1 is the schematic flow sheet of the method first embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention, in the first embodiment, the method being automatically adjusted power in optical fiber telecommunications system provided by the invention, comprises the following steps:
Step S100, the optical fiber obtained in each span decay.
nullAs shown in Figure 2，Fig. 2 is the structural representation that the present invention is automatically adjusted the optical fiber telecommunications system of power，In fig. 2，The optical fiber telecommunications system being automatically adjusted power includes light transmitting element OTU、Image intensifer OA、Optical fiber telecommunications system is automatically adjusted the device APU and optical attenuator LA of power，In the present embodiment，Optical attenuator LA is inessential configuration，Image intensifer OA can be EDFA (Erbium-dopedOpticalFiberAmplifier，Erbium-doped fiber amplifier)，Can also be DRA (DistributedRamanAmplifier，Distributed raman amplifier)，Each light via node and optical fiber telecommunications system are automatically adjusted between the device of power and do not have actual physics circuit，Dotted line in Fig. 2 represents that the device being automatically adjusted power in optical fiber telecommunications system needs to obtain the power-performance of corresponding veneer，Both devices information being automatically adjusted power in each light via node and optical fiber telecommunications system needs to utilize existing master control veneer alternately.In the present embodiment, the device being automatically adjusted power in optical fiber telecommunications system have recorded the input Pnin (input of the n-th via node) of each light via node node and the value of output Pnout (output of the n-th via node) luminous power, and calculates the decay (Ln) of the optical fiber obtaining each initial circuit.When optical fiber telecommunications system is automatically adjusted the device work of power, it is possible to obtain a power at set intervals.Because optical fiber attenuation change is a process slowly, the speed therefore collected does not require quickly.Such as can collect once for every 15 minutes.For reducing the error that each acquisition performance introduces, and the impact that the fluctuation that in optical fiber telecommunications system, luminous power is faint brings, can also each node optical of real-time collecting relaying performance number, calculate the meansigma methods in certain time according to this thus as current performance number, then the current attenuation amount of each span, current attenuation value Ln=Pnin-P (n-1) out are calculated according to this.
Step S200, according to the pad value of optical fiber in each span obtained, regulate the image intensifer of via node in corresponding span or the gain of attenuator.
Optical fiber telecommunications system is automatically adjusted the device of the power pad value according to the optical fiber in each span obtained, if detecting, the decay initial value of current attenuation value and the record calculated is different, the reason such as aging due to optical fiber is then described, the pad value of optical fiber there occurs change, light via node on optical fiber creates decay, now, the yield value of pad value or image intensifer OA_n-1 by regulating the attenuator LA_n-1 of light via node noden-1 so that the input power of node node_n remains unchanged.
The method being automatically adjusted power in the optical fiber telecommunications system that the present embodiment provides, identify the faint variable quantity of the power of each node, variable quantity according to Line Attenuation is automatically adjusted the gain of power amplifier, attenuator, makes up the receiving terminal changed power that the problem such as fiber ageing is brought；Automatically controlling, power regulates in real time, compares artificial adjustment, and operability is good, difficulty is low, systematic influence is little.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of method the second embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention, described smooth via node includes pre-amplifier and post-amplifier, on the basis of first embodiment, the method being automatically adjusted power in the optical fiber telecommunications system that second embodiment provides, further comprising the steps of before step S100:
The pad value of the optical fiber in step S100A, each span preset.
The pad value of the optical fiber being automatically adjusted in device each span preset of power in optical fiber telecommunications system, the preset pad value of the optical fiber in described setting span can obtain in the following way:
Optical fiber telecommunications system is automatically adjusted the device of power before relative analysis, collects each light via node in advance, including the output of transmitting terminal OTU, the input-output power of image intensifers at different levels/optical attenuator OA/LA, the input power of receiving terminal ORU.And calculate the attenuation of the optical fiber of each span according to this, as the initial value of the decay of each span.And the initial Output optical power of pre-amplifier of the light via node each span collected and the initial input luminous power of post-amplifier carry out making after difference processes, drawing the pad value that each span is preset.
With reference to the refinement schematic flow sheet that Fig. 4, Fig. 4 are step S100 in Fig. 1, step S100 includes:
Step S100a, collect the Output optical power of described pre-amplifier and the input optical power of described post-amplifier.
The device being automatically adjusted power in optical fiber telecommunications system collects each light via node current, including the output of currently transmitted end OTU, the input-output power of image intensifers at different levels/optical attenuator OA/LA, the input power of receiving terminal ORU.And calculate the attenuation of the optical fiber of each span current according to this, as the current attenuation value of each span.
Step S100b, input optical power according to the Output optical power of described pre-amplifier and described post-amplifier, calculating current attenuation value, described current attenuation value is the Output optical power difference between the two of input optical power and the described pre-amplifier of described post-amplifier.
The luminous power that is currently entered being automatically adjusted the current Output optical power of the pre-amplifier of the light via node that each span is collected by the device of power and post-amplifier in optical fiber telecommunications system carries out making after difference processes, drawing the current attenuation value of each span.
With reference to the refinement schematic flow sheet that Fig. 5, Fig. 5 are step S200 in Fig. 1, step S200 includes:
Step S200a, pad value preset with in corresponding span for the pad value of optical fiber in each span obtained is analyzed, it is judged that whether the pad value of described optical fiber changes.
The current attenuation value calculated and preset pad value are analyzed by the device being automatically adjusted power in optical fiber telecommunications system, it is judged that whether the pad value of described optical fiber changes.Such as, if the current attenuation value calculated is identical with preset pad value, then the pad value of described optical fiber does not change, if the current attenuation value calculated and preset pad value differ, then the pad value of described optical fiber changes.
Step S200b if it occur that change, then regulates the image intensifer of via node in corresponding span or the gain of attenuator.
If the decay initial value that the device being automatically adjusted power in optical fiber telecommunications system detects current attenuation value and the record calculated is different, then illustrate due to the reason such as aging, pad value there occurs change, by regulating the current Output optical power of described pre-amplifier so that the input power of post-amplifier remains unchanged.
With reference to the refinement schematic flow sheet that Fig. 6, Fig. 6 are step S200b in Fig. 5, step S200b includes:
Step S200c if it occur that change, then regulates the Output optical power of described prime image intensifer, it is ensured that the input power of post-amplifier keeps initial value.
If the decay initial value that the device being automatically adjusted power in optical fiber telecommunications system detects current attenuation value and the record calculated is different, then illustrate due to the reason such as aging, pad value there occurs change, it is currently entered luminous power by what regulate the current Output optical power of described pre-amplifier or post-amplifier, the output making post-amplifier remains unchanged, it is ensured that the input power of post-amplifier keeps initial value.
The method being automatically adjusted power in the optical fiber telecommunications system that the present embodiment provides, decay according to optical fiber is automatically adjusted the gain of amplifier, regulate the decay of optical attenuator in optical fiber, the input power making the image intensifer in each via node is always maintained at identical with preset pad value, so that it is guaranteed that after multiple image intensifers, the power inputing to photoreceiver remains in that identical with preset pad value, strengthens the stability of system.
Referring to the high-level schematic functional block diagram that Fig. 7, Fig. 7 are the device first embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention, in the first embodiment, optical fiber telecommunications system provided by the invention is automatically adjusted the device of power, including:
Acquisition module 10, for obtaining the decay of the optical fiber in each span；
Adjustment module 20, for the pad value according to the optical fiber in each span obtained, regulates the image intensifer of via node in corresponding span or the gain of attenuator.
As shown in Figure 2, Fig. 2 is the structural representation that the present invention is automatically adjusted the optical fiber telecommunications system of power, in fig. 2, the optical fiber telecommunications system being automatically adjusted power includes light transmitting element OTU, image intensifer OA, optical fiber telecommunications system is automatically adjusted the device APU and attenuator LA of power, in the present embodiment, attenuator LA is inessential configuration, image intensifer OA can be EDFA, can also be DRA, each light via node and optical fiber telecommunications system are automatically adjusted between the device of power and do not have actual physics circuit, dotted line in Fig. 2 represents that the device being automatically adjusted power in optical fiber telecommunications system needs to obtain the power-performance of corresponding veneer, both devices information being automatically adjusted power in each light via node and optical fiber telecommunications system needs to utilize existing master control veneer alternately.In the present embodiment, the acquisition module 10 being automatically adjusted the device of power in optical fiber telecommunications system have recorded the input Pnin (input of the n-th via node) of each light via node node and the value of output Pnout (output of the n-th via node) luminous power, and calculates the decay (Ln) of the optical fiber obtaining each initial circuit.When optical fiber telecommunications system is automatically adjusted the device work of power, it is possible to obtain a power at set intervals.Because optical fiber attenuation change is a process slowly, the speed therefore collected does not require quickly.Such as can collect once for every 15 minutes.For reducing the error that each acquisition performance introduces, and the impact that the fluctuation that in optical fiber telecommunications system, luminous power is faint brings, can also each node optical of real-time collecting relaying performance number, calculate the meansigma methods in certain time according to this thus as current performance number, then the current attenuation amount of each span, current attenuation value Ln=Pnin-P (n-1) out are calculated according to this.
If the decay initial value that the adjustment module 20 being automatically adjusted the device of power in optical fiber telecommunications system detects current attenuation value and the record calculated is different, the reason such as aging due to optical fiber is then described, the pad value of optical fiber there occurs change, light via node on optical fiber creates decay, now, the yield value of pad value or image intensifer OA_n-1 by regulating the attenuator LA_n-1 of light via node noden-1 so that the input power of node node_n remains unchanged.
The optical fiber telecommunications system that the present embodiment provides is automatically adjusted the device of power, identify the faint variable quantity of the power of each node, variable quantity according to Line Attenuation is automatically adjusted the gain of power amplifier, attenuator, makes up the receiving terminal changed power that the problem such as fiber ageing is brought；Automatically controlling, power regulates in real time, compares artificial adjustment, and operability is good, difficulty is low, systematic influence is little.
Referring to the high-level schematic functional block diagram that Fig. 8, Fig. 8 are device the second embodiment being automatically adjusted power in optical fiber telecommunications system of the present invention, on the basis of first embodiment, the optical fiber telecommunications system that the second embodiment provides is automatically adjusted the device of power, also includes:
Preset module 30, for the pad value of the optical fiber in each span preset.
The pad value of the optical fiber being automatically adjusted in preset module 30 each span preset of the device of power in optical fiber telecommunications system, the preset pad value of the optical fiber in described setting span can obtain in the following way:
Optical fiber telecommunications system is automatically adjusted the preset module 30 of device of power before relative analysis, collect each light via node in advance, including the output of transmitting terminal OTU, the input-output power of image intensifers at different levels/optical attenuator OA/LA, the input power of receiving terminal ORU.And calculate the attenuation of the optical fiber of each span according to this, as the initial value of the decay of each span.And the initial Output optical power of pre-amplifier of the light via node each span collected and the initial input luminous power of post-amplifier carry out making after difference processes, drawing the pad value that each span is preset.
Being the high-level schematic functional block diagram of acquisition module described in Fig. 7 with reference to Fig. 9, Fig. 9, described acquisition module 10 includes:
Collector unit 11, for collecting the Output optical power of described pre-amplifier and the input optical power of described post-amplifier；
Computing unit 12, input optical power for the Output optical power according to described pre-amplifier and described post-amplifier, calculating current attenuation value, described current attenuation value is the Output optical power difference between the two of input optical power and the described pre-amplifier of described post-amplifier.
The collector unit 11 being automatically adjusted the device of power in optical fiber telecommunications system collects each light via node current, including the output of currently transmitted end OTU, the input-output power of image intensifers at different levels/optical attenuator OA/LA, the input power of receiving terminal ORU.And calculate the attenuation of the optical fiber of each span current according to this, as the current attenuation value of each span.
The luminous power that is currently entered being automatically adjusted the current Output optical power of the pre-amplifier of the light via node that each span is collected by the computing unit 12 of the device of power and post-amplifier in optical fiber telecommunications system carries out making after difference processes, drawing the current attenuation value of each span.
Being the high-level schematic functional block diagram of adjustment module described in Fig. 7 with reference to Figure 10, Figure 10, described adjustment module 20 includes:
Judging unit 21, for being analyzed pad value preset with in corresponding span for the pad value of the optical fiber in each span obtained, it is judged that whether the pad value of described optical fiber changes；
Regulon 22, for if it occur that change, then regulating the image intensifer of via node in corresponding span or the gain of attenuator.
The current attenuation value calculated and preset pad value are analyzed by the judging unit 21 of the device being automatically adjusted power in optical fiber telecommunications system, it is judged that whether the pad value of described optical fiber changes.Such as, if the current attenuation value calculated is identical with preset pad value, then the pad value of described optical fiber does not change, if the current attenuation value calculated and preset pad value differ, then the pad value of described optical fiber changes.
If the decay initial value that the regulon 22 being automatically adjusted the device of power in optical fiber telecommunications system detects current attenuation value and the record calculated is different, then illustrate due to the reason such as aging, optical fiber attenuation value there occurs change, by regulating the current Output optical power of described pre-amplifier so that the input power of post-amplifier remains unchanged
With further reference to Figure 10, the optical fiber telecommunications system that the present embodiment provides is automatically adjusted the device of power, described regulon 22, is additionally operable to if it occur that change, then regulate the Output optical power of described prime image intensifer, it is ensured that the input power of post-amplifier keeps initial value.
If the decay initial value that the regulon 22 being automatically adjusted the device of power in optical fiber telecommunications system detects current attenuation value and the record calculated is different, then illustrate due to the reason such as aging, pad value there occurs change, light via node on optical fiber creates decay, it is currently entered luminous power by what regulate the current Output optical power of described pre-amplifier or post-amplifier, the output making post-amplifier remains unchanged, it is ensured that the input power of post-amplifier keeps initial value.
The optical fiber telecommunications system that the present embodiment provides is automatically adjusted the device of power, decay according to optical fiber is automatically adjusted the gain of amplifier, regulate the decay of optical attenuator in optical fiber, the input power making the image intensifer in each via node is always maintained at identical with preset pad value, so that it is guaranteed that after multiple image intensifers, the power inputing to photoreceiver remains in that identical with preset pad value, strengthens the stability of system.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. the method being automatically adjusted power in an optical fiber telecommunications system, it is characterised in that the method being automatically adjusted power in described optical fiber telecommunications system comprises the following steps:
Obtain the pad value of optical fiber in each span；
Pad value according to the optical fiber in each span obtained, regulates the image intensifer of via node in corresponding span or the gain of attenuator.
2. the method being automatically adjusted power in optical fiber telecommunications system as claimed in claim 1, it is characterised in that include before the step of the pad value of the optical fiber in each span of described acquisition:
The decay initial value of the optical fiber in each span preset.
3. the method being automatically adjusted power in optical fiber telecommunications system as claimed in claim 1, it is characterized in that, described via node includes image intensifer, and described image intensifer includes pre-amplifier and post-amplifier, and the step of the pad value of the optical fiber in each span of described acquisition includes:
Collect the Output optical power of described pre-amplifier and the input optical power of described post-amplifier；
Output optical power according to described pre-amplifier and the input optical power of described post-amplifier, calculating current attenuation value, described current attenuation value is the Output optical power difference between the two of input optical power and the described pre-amplifier of described post-amplifier.
4. the method being automatically adjusted power in optical fiber telecommunications system as claimed in claim 1, it is characterized in that, the described decay according to the optical fiber in each span obtained, the step regulating the image intensifer of via node in corresponding span or the gain of attenuator includes:
Pad value preset with in corresponding span for the pad value of the optical fiber in each span obtained is analyzed, it is judged that whether the pad value of described optical fiber changes；
If it occur that change, then regulate the image intensifer of via node in corresponding span or the gain of attenuator.
5. the method being automatically adjusted power in optical fiber telecommunications system as claimed in claim 4, it is characterised in that the step that in described adjustment correspondence span, the gain of the image intensifer of via node is each includes:
Regulate the Output optical power of described prime image intensifer, it is ensured that the input power of post-amplifier keeps initial value.
6. an optical fiber telecommunications system is automatically adjusted the device of power, it is characterised in that described optical fiber telecommunications system is automatically adjusted the device of power, including:
Acquisition module, for obtaining the decay of the optical fiber in each span；
Adjustment module, for the pad value according to the optical fiber in each span obtained, regulates the image intensifer of via node in corresponding span or the gain of attenuator.
7. optical fiber telecommunications system as claimed in claim 6 is automatically adjusted the device of power, it is characterised in that the device being automatically adjusted power in described optical fiber telecommunications system also includes:
Preset module, for the decay initial value of the optical fiber in each span preset.
8. optical fiber telecommunications system as claimed in claim 6 is automatically adjusted the device of power, it is characterised in that described acquisition module includes:
Collector unit, for collecting the Output optical power of described pre-amplifier and the input optical power of described post-amplifier；
Computing unit, input optical power for the Output optical power according to described pre-amplifier and described post-amplifier, calculating current attenuation value, described current attenuation value is the Output optical power difference between the two of input optical power and the described pre-amplifier of described post-amplifier.
9. optical fiber telecommunications system as claimed in claim 8 is automatically adjusted the device of power, it is characterised in that described adjustment module includes:
Judging unit, for being analyzed pad value preset with in corresponding span for the pad value of the optical fiber in each span obtained, it is judged that whether the pad value of described optical fiber changes；
Regulon, for if it occur that change, then regulating the image intensifer of via node in corresponding span or the gain of attenuator.
10. optical fiber telecommunications system as claimed in claims 6 or 7 is automatically adjusted the device of power, it is characterized in that, described regulon, be additionally operable to if it occur that change, then regulate the Output optical power of described prime image intensifer, it is ensured that the input power of post-amplifier keeps initial value.
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| CN201410855453.2A CN105812065A (en) | 2014-12-31 | 2014-12-31 | Automatic power adjusting method and device in optical fiber communication system |
| PCT/CN2015/097922 WO2016107428A1 (en) | 2014-12-31 | 2015-12-18 | Method and device for automatically adjusting power in optical fibre communication system |
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| CN201410855453.2A CN105812065A (en) | 2014-12-31 | 2014-12-31 | Automatic power adjusting method and device in optical fiber communication system |
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| CN101364845A (en) * | 2007-08-08 | 2009-02-11 | 华为技术有限公司 | Method and system for optical power adjustment in wavelength-division network |
| CN102299738A (en) * | 2011-07-01 | 2011-12-28 | 华为技术有限公司 | Method for acquiring optical network link performance parameters and device thereof |
| CN104202094A (en) * | 2014-08-28 | 2014-12-10 | 北京邮电大学 | Method and device for controlling mode light power |
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| US11070293B2 (en) | 2017-09-21 | 2021-07-20 | Zte Corporation | Method and device for amplifying uplink light of passive optical network, and storage medium |
| CN111416665A (en) * | 2019-01-07 | 2020-07-14 | ***通信有限公司研究院 | Optical fiber communication method, device, equipment and storage medium |
| CN111416665B (en) * | 2019-01-07 | 2022-04-15 | ***通信有限公司研究院 | Optical fiber communication method, device, equipment and storage medium |
| CN110336609A (en) * | 2019-05-31 | 2019-10-15 | 中山大学 | A kind of multi-span fibre-optic transmission system (FOTS) optimization method |
| CN110336609B (en) * | 2019-05-31 | 2021-03-30 | 中山大学 | Multi-span optical fiber transmission system optimization method |
| CN112583489A (en) * | 2019-09-30 | 2021-03-30 | 中兴通讯股份有限公司 | Automatic method and device for optical network power control and storage medium |
| CN113691346A (en) * | 2021-08-20 | 2021-11-23 | 国家电网有限公司信息通信分公司 | Optical power adjusting unit, device, system and method |
| CN113691346B (en) * | 2021-08-20 | 2024-05-17 | 国家电网有限公司信息通信分公司 | Optical power adjusting unit, device, system and method |
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