CN107332607A - A kind of Now therefore to all whom it may concern ASE compensating parameters acquisition methods and acquisition device - Google Patents
A kind of Now therefore to all whom it may concern ASE compensating parameters acquisition methods and acquisition device Download PDFInfo
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- CN107332607A CN107332607A CN201710509191.8A CN201710509191A CN107332607A CN 107332607 A CN107332607 A CN 107332607A CN 201710509191 A CN201710509191 A CN 201710509191A CN 107332607 A CN107332607 A CN 107332607A
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- 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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
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Abstract
The present invention relates to optical amplifier technology field, there is provided a kind of Now therefore to all whom it may concern ASE compensating parameters acquisition methods and acquisition device.Its application method includes：According to the target gain parameter value of setting, the running parameter of the Raman Fiber Amplifier and erbium-doped fiber amplifier in Now therefore to all whom it may concern is configured；Searched from mapping relations and the target ASE compensating parameters corresponding to the Raman Fiber Amplifier of configuration and the running parameter of erbium-doped fiber amplifier；Calculate the summation of the gain of input optical power, target ASE compensating parameters and the erbium-doped fiber amplifier of erbium-doped fiber amplifier, by the gain for adjusting Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that the above-mentioned summation after correspondence adjustment is equal to target gain parameter value.The present invention is controlled so that Now therefore to all whom it may concern can reach accurate gain control effect using the different ASE offsets that mode of operation is obtained are simulated for the gain to EDFA in practical application.
Description
【Technical field】
The present invention relates to optical amplifier technology field, more particularly to a kind of Now therefore to all whom it may concern ASE compensating parameters are obtained
Take method and acquisition device.
【Background technology】
With the commercialization of the development of high rate optical communication system, especially 100G and super 100G optical fiber telecommunications systems, system
Requirement more and more higher to OSNR.The OSNR of lifting system is to have to solve in each optical communication system equipment
Problem.Raman Fiber Amplifier (Raman fiber amplifier, hereinafter referred to as RFA) can improve OSNR with it
Characteristic, is more favored by equipment vendor.Now therefore to all whom it may concern be (Hybrid fiber amplifier, hereinafter referred to as
HYFA) by Raman Fiber Amplifier RFA and erbium-doped fiber amplifier (Erbium Doped Fiber Application
Amplifier, hereinafter referred to as EDFA) combine a kind of fiber amplifier, it has the characteristic of RFA low noise figures simultaneously, together
When there is big power output as EDFA.Start on many optical fiber communication equipments in long span now or need to improve noise
In the system of ratio, on a large scale using HYFA.
Patent " CN102843192A ", describes the use of Now therefore to all whom it may concern, and gain, the control method of slope.
Its RFA and EDFA gain is separately individually to control.But in actual application, according to scene the need for, it may be desirable to
EDFA, or Raman exclusive use, or both cascade use.Use, and enter when EDFA and RFA fiber amplifiers are cascaded
When the optical power ratio of Raman is relatively low, now by the amplification light of Raman, light (Amplified is amplified in spontaneous radiation
Spontaneous Emission, are abbreviated as：ASE the proportion) accounted for is larger, but EDFA input detection cannot be distinguished by its input light
The proportion of middle flashlight and ASE, therefore its EDFA actual gain can be bigger than normal.Patent " CN105871468A ", is essentially described
The accuracy control method of RFA gains.Explanation is not manufactured to overall gain control.
【The content of the invention】
The technical problem to be solved in the present invention is that input light is first in the prior art when the input light for entering HYFA is smaller
First pass through after RFA amplifications, the included substantial amounts of ASE of flashlight into EDFA parts, if EDFA is according to conventional control
Mode, then be equally considered as flashlight by the flashlight and ASE in input light and amplify together, and final whole HYFA gain will compare mesh
Mark gain big.
The present invention is adopted the following technical scheme that：
In a first aspect, the present invention proposes a kind of Now therefore to all whom it may concern ASE compensating parameter acquisition methods, using by Raman
The Now therefore to all whom it may concern that fiber amplifier and erbium-doped fiber amplifier are constituted, the Now therefore to all whom it may concern is by access test light
Road, the optical system for testing is sequentially connected by light source, adjustable attenuator, Now therefore to all whom it may concern and spectroanalysis instrument and constituted, mixing
The control port of fiber amplifier is connected to regulation device, and method includes：
According to Now therefore to all whom it may concern involved one group or multigroup optical signal parameters in the work environment, set described
Light source and adjustable attenuator so that the optical signal for entering Now therefore to all whom it may concern reaches specified requirement；
One or more point is provided with the test light-path of the Raman Fiber Amplifier and erbium-doped fiber amplifier
Light device, the drop two port connection laser detector of the optical splitter；The detection content that the laser detector is used to get is anti-
Feed and analyze end, Raman Fiber Amplifier and/or er-doped light are adjusted after analysis result is drawn, to pass through the regulation device
The running parameter of fiber amplifier so that the optical signal that the spectroanalysis instrument is detected meets predetermined optical signal amplification result,
And record corresponding adjusting parameter；
Optical signal simulation in multigroup working environment is completed, and correspondence Raman Fiber Amplifier and/or er-doped light
After the adjustment of fiber amplifier running parameter, after multigroup Raman Fiber Amplifier and/or erbium-doped fiber amplifier adjustment
Running parameter calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence.
It is preferred that, the running parameter of Raman Fiber Amplifier and erbium-doped fiber amplifier includes：
The yield value and slope value of the Raman Fiber Amplifier, and erbium-doped fiber amplifier yield value and slope
Value.
It is preferred that, when the Raman Fiber Amplifier and erbium-doped fiber amplifier are operated in one-piece pattern, the basis
Running parameter after multigroup Raman Fiber Amplifier and/or the erbium-doped fiber amplifier adjustment, which is calculated, obtains each building ring of correspondence
The ASE compensating parameters of optical signal, are specifically included in border：
According to ASE offsets ASE_H and the first formula of the running parameter of graceful fiber amplifier and erbium-doped fiber amplifier
Relation, substitutes into described first public by the running parameter obtained after multigroup Raman Fiber Amplifier and erbium-doped fiber amplifier adjustment
Formula, calibration obtains the coefficient in the formula relationship；First formula is：
ASE_H=(k1*Gain_R_m+k2*Tilt_R_x+B1) * Gain_E_n+k3*Gain_E_n+k4*Tilt_E_y+
B2
Wherein, Gain_R_m and Gain_E_n represent m-th of the gain parameter and er-doped light of Raman Fiber Amplifier respectively
N-th of gain parameter of fiber amplifier；Tilt_R_x and Tilt_E_y represent Raman Fiber Amplifier respectively and Er-doped fiber is put
The slope of big device；Wherein, k1, k2, k3, k4, B1 and B3 are the coefficient, and described m, n, x and y are natural number.
It is preferred that, when the Now therefore to all whom it may concern is operated in stand-alone mode, then adjusted according to erbium-doped fiber amplifier
Running parameter afterwards calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence, is implemented as：
According to ASE offsets ASE_H and the second formula of the running parameter of erbium-doped fiber amplifier, by multigroup Raman fiber
Running parameter after amplifier and erbium-doped fiber amplifier adjustment substitutes into second formula, and calibration is obtained in second formula
Coefficient；Second formula is：
ASE_H=k5*Gain_E_n+k6*Tilt_E_y+B3；Adjusted according to the second formula and multigroup erbium-doped fiber amplifier
Running parameter after whole, calibration obtains coefficient k 5, k6 and B3.
It is preferred that, it is when the Now therefore to all whom it may concern is operated in one-piece pattern, then described according to multigroup Raman light
Running parameter after fiber amplifier and/or erbium-doped fiber amplifier adjustment, which is calculated, obtains optical signal in each working environment of correspondence
ASE compensating parameters, are specifically included：
The running parameter of one group or multigroup Raman Fiber Amplifier and erbium-doped fiber amplifier is selected, first is imported public
Formula：
ASE_H=(k1*Gain_R_m+k2*Tilt_R_x+B1) * Gain_E_n+k3*Gain_E_n+k4*Tilt_E_y+
B2, obtains one or more ASE compensating parameter；By each ASE compensating parameters and the corresponding Raman Fiber Amplifier for importing formula
Mapping relations are set up with the running parameter of erbium-doped fiber amplifier.
Second aspect, present invention also offers a kind of ASE compensating parameter application methods of Now therefore to all whom it may concern, in method
Usage right requires that any Now therefore to all whom it may concern ASE compensating parameters acquisition methods of 1-5 are calculated and obtains multiple ASE compensation ginsengs
Number, and by each ASE compensating parameters with accordingly importing the Raman Fiber Amplifier of formula and the running parameter of erbium-doped fiber amplifier
Mapping relations are set up, specifically：
The mapping relations are stored in the regulation device of Now therefore to all whom it may concern；
The regulation device receives the running parameter of current Now therefore to all whom it may concern, the work of the Now therefore to all whom it may concern
Parameter includes the running parameter of Raman Fiber Amplifier and/or erbium-doped fiber amplifier；
According to the Raman Fiber Amplifier and/or the running parameter of erbium-doped fiber amplifier, search and deposited in regulation device
The mapping relations of storage obtain ASE compensating parameters；
Using the ASE compensating parameters as current Now therefore to all whom it may concern ASE compensating parameters.
It is preferred that, the running parameter of the Raman Fiber Amplifier includes the yield value and tiltedly of the Raman Fiber Amplifier
Rate value；The running parameter of the erbium-doped fiber amplifier includes the yield value and slope value of erbium-doped fiber amplifier.
It is preferred that, the mapping relations include Raman Fiber Amplifier yield value, Gain in Er-Doped Fiber Amplifiers by multigroup
Value and ASE offsets are constituted, wherein, situation about being set in the slope and erbium-doped fiber amplifier slope of Raman Fiber Amplifier
Under, every a pair of Raman Fiber Amplifiers yield value ASE offsets corresponding with Gain in Er-Doped Fiber Amplifiers value.
The third aspect, present invention also offers a kind of Now therefore to all whom it may concern ASE compensating parameter use devices, including light
Source, adjustable attenuator, Now therefore to all whom it may concern, it is characterised in that the light source, adjustable attenuator and Now therefore to all whom it may concern according to
Secondary connection, wherein, the control port of Now therefore to all whom it may concern is connected to regulation device, and the regulation device is put including Raman fiber
Big device regulation and control subelement and erbium-doped fiber amplifier regulation and control subelement, specifically：
Light signal output end mouthful the first signal light splitting coupler of connection of the Raman Fiber Amplifier, first signal
The drop two port connection laser detector of light splitting coupler, the light-emitting window connection secondary signal point of the first signal light splitting coupler
Photo-coupler；
The drop two port connection laser detector of the secondary signal light splitting coupler, the secondary signal light splitting coupler
Light-emitting window connects erbium-doped fiber amplifier, and the light-emitting window of the erbium-doped fiber amplifier connects the 3rd signal light splitting coupler, institute
State the drop two port connection laser detector of the 3rd signal light splitting coupler；
The control port of wherein described Raman Fiber Amplifier is connected with Raman Fiber Amplifier regulation and control subelement；Institute
The control port for stating erbium-doped fiber amplifier is connected with erbium-doped fiber amplifier regulation and control subelement.
It is preferred that, the Raman Fiber Amplifier includes the first pump signal wave multiplexer and RFA pump units, wherein, institute
State the first pump signal wave multiplexer input connection adjustable attenuator, the coupled end connection institute of the first pump signal wave multiplexer
RFA pump units are stated, the output port of the first pump signal wave multiplexer is the light signal output end of Raman Fiber Amplifier
Mouthful；The Raman Fiber Amplifier regulation and control subelement is specifically connected with the RFA pump units in the Raman Fiber Amplifier.
It is preferred that, the erbium-doped fiber amplifier includes the second pump signal wave multiplexer and EDFA pump units, wherein, institute
State the second pump signal wave multiplexer input connection secondary signal light splitting coupler, the coupling of the second pump signal wave multiplexer
The end connection EDFA pump units, the output port of the second pump signal wave multiplexer is believed for the light of erbium-doped fiber amplifier
Number output port, and connect one or three signal light splitting couplers；Erbium-doped fiber amplifier regulation and control subelement specifically with it is described
EDFA pump units in erbium-doped fiber amplifier are connected；Wherein, the secondary signal light splitting coupler and the 3rd signal light splitting
The drop two port of coupler connects EDFA input optical signals detector and EDFA output optical signal detectors respectively.
Fourth aspect, present invention also offers a kind of Now therefore to all whom it may concern ASE compensating parameter application methods, methods described
Including：
According to the target gain parameter value of setting, the Raman Fiber Amplifier and er-doped light in Now therefore to all whom it may concern are configured
The running parameter of fiber amplifier；
It is right with the Raman Fiber Amplifier configured and the running parameter institute of erbium-doped fiber amplifier to be searched from mapping relations
The target ASE compensating parameters answered；
Calculate the gain of input optical power, target ASE compensating parameters and the erbium-doped fiber amplifier of erbium-doped fiber amplifier
Sum, and by adjusting the gain of Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that each parameter expires after correspondence adjustment
The gain sum of sufficient input optical power, target ASE compensating parameters and erbium-doped fiber amplifier is equal to target gain parameter value.
It is preferred that, the gain of the adjustment Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that after correspondence adjustment
The gain sum that each parameter meets input optical power, target ASE compensating parameters and erbium-doped fiber amplifier is joined equal to target gain
Numerical value, is specifically included：
Obtain the power output P_E_OUT of erbium-doped fiber amplifier；
Calculate input power P_E_IN, target ASE compensating parameters and the doped fiber amplifier for obtaining erbium-doped fiber amplifier
The summation EDFA_ALL of gain；
Compare the power output of the erbium-doped fiber amplifier and the summation EDFA_ALL of the doped fiber amplifier gain；
If equal, represent to reach EDFA target gain；If unequal, by the pump for adjusting RFA and/or EDFA
Pu power is equal until both.
Compared with prior art, the beneficial effects of the present invention are：A kind of Now therefore to all whom it may concern ASE compensation ginsengs provided
Number acquisition methods, by simulating, different mode of operations obtains different ASE offsets, wherein, the ASE offsets can be used
It is controlled come the gain to EDFA in practical application so that Now therefore to all whom it may concern is under different utilization scenes
To reach accurate gain control effect.
The method that this patent proposes Now therefore to all whom it may concern ASE compensation, to ensure that HYFA also may be used when low input light
To obtain accurate gain control.
Further, the mode of operation of Now therefore to all whom it may concern is effectively divided into by the present invention herein in connection with concrete application example
One-piece pattern and stand-alone mode, improve the present invention can application and application scenario, improve and apply range.
【Brief description of the drawings】
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of Now therefore to all whom it may concern ASE compensating parameters acquisition device structural representation provided in an embodiment of the present invention
Figure；
Fig. 2 is a kind of Now therefore to all whom it may concern ASE compensating parameters acquisition methods flow chart provided in an embodiment of the present invention；
Fig. 3 is a kind of gain of Raman Fiber Amplifier provided in an embodiment of the present invention, the gain of erbium-doped fiber amplifier
The mapping relations schematic diagram between ASE offsets；
Fig. 4 is a kind of mapping of the erbium-doped fiber amplifier provided in an embodiment of the present invention in the independent mode under working condition
Relation schematic diagram；
Fig. 5 is a kind of Now therefore to all whom it may concern ASE compensating parameters application method flow chart provided in an embodiment of the present invention；
Fig. 6 is a kind of Now therefore to all whom it may concern ASE compensating parameters use device structure chart provided in an embodiment of the present invention；
Fig. 7 is a kind of Now therefore to all whom it may concern ASE compensating parameters use device partial structurtes provided in an embodiment of the present invention
Schematic diagram；
Fig. 8 is a kind of Now therefore to all whom it may concern ASE compensating parameters use device partial structurtes provided in an embodiment of the present invention
Schematic diagram；
Fig. 9 is a kind of Now therefore to all whom it may concern ASE compensating parameters use device refinement signal provided in an embodiment of the present invention
Figure；
Figure 10 is that another Now therefore to all whom it may concern ASE compensating parameters use device provided in an embodiment of the present invention is locally tied
Structure schematic diagram；
Figure 11 is a kind of Now therefore to all whom it may concern ASE compensating parameters application method flow chart provided in an embodiment of the present invention；
Figure 12 is a kind of slope of Raman Fiber Amplifier provided in an embodiment of the present invention, the slope of erbium-doped fiber amplifier
And both mapping relations schematic diagrames each between gain；
Figure 13 is the ASE compensating parameter users that a kind of erbium-doped fiber amplifier provided in an embodiment of the present invention is used alone
Method flow chart；
Figure 14 is the error schematic diagram of the gain that a kind of actual measurement control provided in an embodiment of the present invention is obtained and target gain；
Figure 15 is the error schematic diagram of the gain that a kind of actual measurement control provided in an embodiment of the present invention is obtained and target gain.
【Embodiment】
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As long as in addition, technical characteristic involved in each embodiment of invention described below is each other not
Constituting conflict can just be mutually combined.
In Raman Fiber Amplifier (hereafter be also referred to as RFA), its gain by being determined with the relation with outer ASE,
The precision of its gain is not influenceed by input light height, and in erbium-doped fiber amplifier (being hereafter also referred to as EDFA), it increases
Benefit is to be compared by the light after amplification with the light before amplification, and gain control is represented when its difference and equal gain in place.After amplification
Power be all to be obtained by photodetector (Photoelectric detector, hereinafter referred to as PD), PD can only detect work(
Rate, it is impossible to distinguish flashlight or ASE.When flashlight is larger, the proportion of ASE compositions is smaller, and the control to gain does not have substantially
Influence；When flashlight is smaller, the proportion of ASE compositions is larger.Now subtract each other only by output light and input light equal to gain
If controlling, gain has larger deviation, it is therefore desirable to carry out ASE compensation.In systems using when, when entering HYFA
Light than it is larger when, RFA and EDFA are that can obtain the accurate control to gain by current prior art；But work as and enter HYFA
Input light it is smaller when, after input light is amplified by RFA first, the flashlight into EDFA parts is included substantial amounts of
ASE, if the flashlight and ASE in input light are equally considered as flashlight and put together by EDFA according to conventional control mode
Greatly, final whole HYFA gain will be bigger than target gain.
Before starting to illustrate various embodiments of the present invention, first to being likely to occur or being related in various embodiments of the present invention
Mark is defined as follows：
RFA gain is designated as Gain_R_m, and its excursion is designated as Gain_R_1~Gain_R_i, and m is between 1~i；
RFA slope is designated as Tilt_R_x, and its excursion is designated as Tilt_R_1~Tilt_R_a, and x is between 1~a；
EDFA gain is designated as Gain_E_n, and its excursion is designated as Gain_E_1~Gain_E_j, n between 1~j it
Between；
EDFA slope is designated as Tilt_E_y, and its excursion is designated as Tilt_E_1~Tilt_E_b, y between 1~b it
Between；
RFA is when gain is Gain_R_m, and the interior ASE power of band that RFA parts are produced is ASE_R_m；
EDFA is when gain is Gain_E_n, and the ASE power that EDFA parts are produced is designated as ASE_E_n；
EDFA input optical power probe value is designated as：P_E_IN；
EDFA Output optical power probe value is designated as：P_E_OUT；
Need the ASE power of compensation to be designated as ASE_H, target ASE compensating parameters are also referred to as in various embodiments of the present invention.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of Now therefore to all whom it may concern ASE compensating parameter acquisition methods, using by Raman light
The Now therefore to all whom it may concern that fiber amplifier and erbium-doped fiber amplifier are constituted, the Now therefore to all whom it may concern is by access test light
Road, as shown in figure 1, the optical system for testing by light source 1, adjustable attenuator 2, Now therefore to all whom it may concern 4 and spectroanalysis instrument 5 successively
Connect and compose, the control port of Now therefore to all whom it may concern 4 is connected to regulation device, as shown in Fig. 2 methods described includes：
In step 201, according to involved one group or the multigroup optical signal in the work environment of Now therefore to all whom it may concern 4
Parameter, sets the light source 1 and adjustable attenuator 2 so that the optical signal for entering Now therefore to all whom it may concern 4 reaches specified requirement.
Wherein, the specified requirement can be that requirement enters in the optical signal and working environment of Now therefore to all whom it may concern 4
Optical signal is similar, and its similar behavior is for example：It is same or similar between the parameters such as wavelength of optical signal, optical signal light intensity.
In step 202., it is provided with one on the test light-path of the Raman Fiber Amplifier and erbium-doped fiber amplifier
Individual or multiple optical splitters, the drop two port connection photodetector of the optical splitter；The photodetector is used to get
Detection content feed give analysis end, so as to after analysis result is drawn, pass through the regulation device and adjust Raman fiber and amplify
The running parameter of device and/or erbium-doped fiber amplifier so that the optical signal that the spectroanalysis instrument 5 is detected meets predetermined light
Signal amplifies result, and records corresponding adjusting parameter.
Wherein, analysis end can be independent computer or server or the place being integrated on regulation device
Device is managed, can also be setting is exactly the regulation device itself for possessing analytic function, and the body format at the analysis end can be many
Kind, various ways of realization are belonged in the protection domain of the embodiment of the present invention.
In step 203, the optical signal simulation in multigroup working environment is completed, and correspondence Raman Fiber Amplifier
And/or after the adjustment of erbium-doped fiber amplifier running parameter, according to the multigroup Raman Fiber Amplifier and/or Erbium-doped fiber amplifier
Running parameter after device adjustment calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence.
In embodiments of the present invention, the running parameter of the Raman Fiber Amplifier and erbium-doped fiber amplifier is mainly wrapped
Include：The yield value and slope value of the Raman Fiber Amplifier, and erbium-doped fiber amplifier yield value and slope value.
A kind of Now therefore to all whom it may concern ASE compensating parameter acquisition methods provided in an embodiment of the present invention, by simulating work
Pattern obtains different ASE offsets, wherein, the ASE offsets can be for the gain to EDFA in practical application
It is controlled so that Now therefore to all whom it may concern can reach accurate gain control effect under different utilization scenes.
In embodiments of the present invention, the mode of operation of Now therefore to all whom it may concern includes mode of operation one：One-piece pattern and work
Operation mode two：Stand-alone mode.
Mode of operation one：
One-piece pattern is meant that Raman amplifiers and EDFA amplifiers as an entirety and controls gain, typically passes through
Cross Raman amplifiers amplification after optical signal enter back into the amplification that EDFA amplifiers enter traveling optical signal, i.e. HYFA output lights=
The ASE that the interior ASE*EDFA gains+EDFA of band that HYFA input light+Raman gain+EDFA gains+Raman is produced is produced.It is above-mentioned
Formula is illustrated from DB unit angles.
For example：The one-piece pattern can refer to Raman Fiber Amplifier and Erbium-doped fiber amplifier in Now therefore to all whom it may concern
Device is in series connection, and is in the " Raman fiber in power amplification working condition, the i.e. embodiment of the present invention in each step simultaneously
The description of amplifier and/or erbium-doped fiber amplifier " is embodied in " Raman Fiber Amplifier and erbium-doped fiber amplifier ".
In embodiments of the present invention, for being realized in step 203 according to multigroup Raman Fiber Amplifier and/or
Running parameter after erbium-doped fiber amplifier adjustment calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence, especially
It is, for the realization under above-mentioned overall work pattern, to give the elaboration of particular content, as follows：
It is public according to the first of ASE offsets ASE_H and the running parameter of Raman Fiber Amplifier and erbium-doped fiber amplifier
Formula relation (1), described first is substituted into by the running parameter after multigroup Raman Fiber Amplifier and/or erbium-doped fiber amplifier adjustment
Formula (1), calibration obtains the coefficient in first formula relationship (1)；First formula (1) is：
ASE_H=(k1*Gain_R_m+k2*Tilt_R_x+B1) * Gain_E_n+k3*Gain_E_n+k4*Tilt_E_y+
B2 (1)
Wherein, Gain_R_m and Gain_E_n represent m-th of the gain parameter and er-doped light of Raman Fiber Amplifier respectively
N-th of gain parameter of fiber amplifier；Tilt_R_x and Tilt_E_y represent Raman Fiber Amplifier respectively and Er-doped fiber is put
The slope of big device.K1, k2, k3, k4, B1, B2 is the coefficient for needing to calibrate.For the calibrating method, it can specifically use
Linear regression realizes that i.e. Tilt_R_x and Tilt_E_y for setting, by gathering multigroup Gain_R_i and Gain_E_i, leads to
Cross linear regression method calculating and obtain coefficient k 1, k2, k3, k4, B1 and B2.
Mode of operation two：
Stand-alone mode means Raman amplifiers and EDFA amplifier independent controls, can be specifically：1), only make
With the Raman amplifiers in the Now therefore to all whom it may concern, the EDFA amplifiers now connected with the Raman amplifiers are in
Resting state；Or, 2), using only the EDFA amplifiers in the Now therefore to all whom it may concern, now with the EDFA amplifiers
The Raman amplifiers of series connection are in resting state；Or, 3), can also be Raman amplifiers in Now therefore to all whom it may concern and
EDFA amplifiers not cascaded structure in one-piece pattern, but a kind of pattern each worked independently, now, Raman amplifiers
Each worked independently with EDFA amplifiers.When being worked independently for Raman amplifiers, Raman output lights=HYFA input light
(input light of the HYFA input light equivalent to Raman)+Raman gains+Raman produce the interior ASE of band (now its produce band
Outer ASE can be ignored for interior ASE)；When being worked independently for EDFA amplifiers, EDFA output lights=EDFA
Input light+EDFA gains+EDFA produce ASE.
When the Now therefore to all whom it may concern is operated in stand-alone mode (being specially EDFA independent working modes), then basis is mixed
Running parameter after doped fiber amplifier adjustment calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence, specifically
It is embodied as：
According to ASE offsets ASE_H and the second formula (2) of the running parameter of erbium-doped fiber amplifier, by multigroup Raman
Running parameter after fiber amplifier and erbium-doped fiber amplifier adjustment substitutes into second formula (2), and calibration obtains described the
Coefficient in two formula (2)；Second formula (2) is：
ASE_H=k5*Gain_E_n+k6*Tilt_E_y+B3 (2)
According to the running parameter after the second formula (2) and the adjustment of multigroup erbium-doped fiber amplifier, calibration obtains coefficient k 5, k6
And B3.
It is emphasized that the first formula (1) and the second formula (2) that the embodiment of the present invention is provided be only it is many can
One of corresponding relation of realization, the claimed embodiment of the present invention is the resolving ideas, and not limits the invention to institute
State on the first formula (1) and the second formula (2) because, future be potentially based on during practice first formula (1) and
Second formula (2) proposes more excellent equilibrium relationships.
The embodiment of the present invention is when step 203 is completed, in addition to it can obtain ASE compensating parameters, can also be further
Subsequently to be prepared using the ASE compensating parameters, therefore, when the Now therefore to all whom it may concern 4 is operated in mode of operation one
When (Raman Fiber Amplifier and erbium-doped fiber amplifier are in one-piece pattern working condition i.e. in Now therefore to all whom it may concern), then institute
State to be calculated according to the running parameter after multigroup Raman Fiber Amplifier and/or erbium-doped fiber amplifier adjustment and obtain correspondence respectively
The ASE compensating parameters of optical signal, are specifically included in working environment：
The running parameter of one group or multigroup Raman Fiber Amplifier and erbium-doped fiber amplifier is selected, the first formula is imported
(1) one or more ASE compensating parameter is obtained；By each ASE compensating parameters and the corresponding Raman fiber for importing the first formula (1)
The running parameter of amplifier and erbium-doped fiber amplifier sets up mapping relations.As shown in figure 3, wherein, each ASE compensating parameter
Value, can by the Raman Fiber Amplifier imported yield value Gain_R_i and the yield value Gain_E_i of erbium-doped fiber amplifier
Unique locking (the mapping relations performance form of i.e. above-mentioned mode of operation one), can pass through similar figure during specifically used
3 database searches the ASE compensating parameters under Now therefore to all whom it may concern actual working state.Require supplementation with, Fig. 3 institutes
The slope of the form shown the generally slope of one group of Raman Fiber Amplifier of correspondence and erbium-doped fiber amplifier, i.e., each group graceful optical fiber
The slope of amplifier and the slope of erbium-doped fiber amplifier, all correspond to a list data as shown in Figure 3.As shown in figure 4, being
The mapping relations performance form of the above-mentioned mode of operation two of correspondence provided in an embodiment of the present invention.
Embodiment 2:
The embodiment of the present invention is obtained except providing a kind of ASE compensating parameters of Now therefore to all whom it may concern as described in Example 1
Method is taken, also further provides in a kind of ASE compensating parameter application methods of Now therefore to all whom it may concern, method and has used reality
Apply Now therefore to all whom it may concern ASE compensating parameters acquisition methods described in example 1 and calculate and obtain multiple ASE compensating parameters and (refer to Fig. 3
Shown ASE compensating parameters show form), and by each ASE compensating parameters and the corresponding Raman Fiber Amplifier for importing formula and
The running parameter of erbium-doped fiber amplifier sets up mapping relations, as shown in figure 5, methods described specifically includes step performed below：
In step 301, the mapping relations are stored in the regulation device of Now therefore to all whom it may concern 4.
During implementing, if there is the control of higher section on the regulation device of the Now therefore to all whom it may concern 4
Main body processed, then the mapping relations data can also be stored in the control main body of the higher section, for example：Described higher section
The control main body of position can be computer, central management device etc..
In step 302, the regulation device receives the running parameter of current Now therefore to all whom it may concern 4, the mixed light
The running parameter of fiber amplifier 4 includes the running parameter of Raman Fiber Amplifier and/or erbium-doped fiber amplifier.
Wherein, the running parameter of the Now therefore to all whom it may concern 4 illustrated in step 202 includes Raman Fiber Amplifier
And/or the running parameter of erbium-doped fiber amplifier, refer to that the embodiment of the present invention goes for the Working mould introduced in embodiment 1
Formula one and mode of operation two.
Wherein, the running parameter of Now therefore to all whom it may concern 4 is typically to be inputted to complete by operating personnel, and input mode can be
Input is realized or by introduced in similar step 301 higher section directly in the input interface of the regulation device
The control main body of position is transmitted to the regulation device to complete after the running parameter of operating personnel's input is obtained.It obtains shape
Formula does not do particular determination herein, can be covered by the embodiment of the present invention.
In step 303, according to the Raman Fiber Amplifier and/or the running parameter of erbium-doped fiber amplifier, search
The mapping relations stored in regulation device obtain ASE compensating parameters.
Before step 303 is realized, it should actually also need to first carry out the slope and er-doped light of Raman Fiber Amplifier
The acquisition of the slope of fiber amplifier, and the mapping relations stored are searched according to the slope, as illustrated in embodiment 1, often
The slope and erbium-doped fiber amplifier slope of one group of Raman Fiber Amplifier can be corresponded to as shown in Figure 3 to be amplified by Raman fiber
The form that the gain of device, the gain of erbium-doped fiber amplifier and ASE offsets are constituted.Now, mapping relations are actually covered
The gain of Raman Fiber Amplifier and slope, the gain of erbium-doped fiber amplifier and slope, and ASE offsets.
In step 304, using the ASE compensating parameters as current Now therefore to all whom it may concern 4 ASE compensating parameters.
Wherein, the use of above-mentioned ASE compensating parameters is specially：Analysis end passes through formula P_E_OUT=P_E_IN+Gain_E
+ ASE_H (3) offset, makes EDFA Output optical power P_E_OUT parameter values and EDFA input optical powers P_E_IN+Gain_E+
The result of ASE_H offsets is equal, then EDFA enters stable state；If unequal, regulation pump laser (including Raman
Fiber amplifier and erbium-doped fiber amplifier) until its is equal.Wherein, adjustment each time is required for being swashed according to the pumping after adjustment
Light device parameter (include the yield value and slope value of the Raman Fiber Amplifier, and erbium-doped fiber amplifier yield value and
One or more parameter in slope value) recalculate and obtain new ASE_H offsets, for bringing above-mentioned formula (3) weight into
Whether new calculation equation is set up and (whether enters stable state, without adjusting again).
The embodiments of the invention provide how to utilize the Now therefore to all whom it may concern ASE compensating parameters acquisition described in embodiment 1
The mapping relations that method is obtained, are applied to the example under specific works environment.In embodiments of the present invention, the Raman fiber is put
The running parameter of big device includes the yield value and slope value of the Raman Fiber Amplifier；The work of the erbium-doped fiber amplifier
Parameter includes the yield value and slope value of erbium-doped fiber amplifier.
After the ASE compensating parameters acquisition methods and ASE compensating parameter application methods given by embodiment 1 and embodiment 2,
Again during specifically used ASE compensating parameters, except the mapping relations (as shown in Figure 3) that the present embodiment can be used to be proposed,
Can also be by calculating obtained coefficient (such as：K1, k2, k3, k4, B1 and B2), the real-time basis during one-piece pattern use
First formula (1), is substituted with this and mapping relations is inquired about in the present embodiment；Or can also be by calculating obtained coefficient (such as：
K5, k6 and B3), in real time according to the second formula (2) during EFDA independent working mode uses, in this, as in the present embodiment
Inquire about the alternative solution of mapping relations.
Embodiment 3:
After there is provided a kind of Now therefore to all whom it may concern ASE compensating parameter application methods as described in Example 2, the present invention
Embodiment further provides a kind of Now therefore to all whom it may concern ASE compensating parameter use devices, and the use device can be used for
Complete the method content illustrated in embodiment 2.As shown in figs 6-8, the use device include light source 1, adjustable attenuator 2,
Now therefore to all whom it may concern 4, it is characterised in that the light source 1, adjustable attenuator 2 and Now therefore to all whom it may concern 4 are sequentially connected, its
In, the control port of Now therefore to all whom it may concern 4 is connected to regulation device 6, and the regulation device is adjusted including Raman Fiber Amplifier
Subelement 6-1 and erbium-doped fiber amplifier regulation and control subelement 6-2 are controlled, specifically：
Light signal output end mouthful the first signal light splitting coupler of connection of the Raman Fiber Amplifier, first signal
The drop two port connection laser detector 1 of light splitting coupler, the light-emitting window connection secondary signal of the first signal light splitting coupler
Light splitting coupler.The laser detector 1 is specifically as follows detects PD with interior ASE.
The drop two port connection laser detector 2 of the secondary signal light splitting coupler, the secondary signal light splitting coupler
Light-emitting window connection erbium-doped fiber amplifier, the light-emitting window of the erbium-doped fiber amplifier connects the 3rd signal light splitting coupler,
The drop two port connection laser detector 3 of the 3rd signal light splitting coupler；Wherein, the laser detector 2 and laser acquisition
EDFA input PD and EDFA outputs PD shown in the difference corresponding diagram 8 of device 3.
The control port of wherein described Raman Fiber Amplifier connects with Raman Fiber Amplifier regulation and control subelement 6-1
Connect；The control port of the erbium-doped fiber amplifier is connected with erbium-doped fiber amplifier regulation and control subelement.
In embodiments of the present invention, as shown in fig. 7, the Raman Fiber Amplifier include the first pump signal wave multiplexer and
RFA pump units, wherein, the first pump signal wave multiplexer input connects adjustable attenuator 2, first pump signal
The coupled end of wave multiplexer connects the RFA pump units, and the output port of the first pump signal wave multiplexer is Raman fiber
The light signal output end mouthful of amplifier；The Raman Fiber Amplifier regulation and control subelement 6-1 specifically amplifies with the Raman fiber
RFA pump units in device are connected.
In embodiments of the present invention, as shown in figure 8, the erbium-doped fiber amplifier include the second pump signal wave multiplexer and
EDFA pump units, wherein, the second pump signal wave multiplexer input connects secondary signal light splitting coupler, described second
The coupled end of pump signal wave multiplexer connects the EDFA pump units, and the output port of the second pump signal wave multiplexer is
The light signal output end mouthful of erbium-doped fiber amplifier, and connect one the 3rd signal light splitting coupler；The Erbium-doped fiber amplifier
Device regulation and control subelement is specifically connected with the EDFA pump units in the erbium-doped fiber amplifier；Wherein, the secondary signal point
The drop two port of photo-coupler and the 3rd signal light splitting coupler connects EDFA input optical signals detector and EDFA output lights respectively
Signal sensor.
As shown in figure 9, being combined with obtaining after above-mentioned specific Raman Fiber Amplifier structure and erbium-doped fiber amplifier structure
The use structure chart arrived.
The structural representation as shown in Figure 7 and Figure 8 that the embodiment of the present invention is given, in being only a variety of possible implementations
One kind.For example, it can collectively form (such as Figure 10 by each construction unit in Fig. 7 that the structure of Raman Fiber Amplifier, which is divided,
It is shown), its mode divided is specifically determined by different manufacturers, and particular determination is not done herein.Similar structure divides same
Suitable for erbium-doped fiber amplifier, it will not be repeated here.
Embodiment 4:
After there is provided a kind of Now therefore to all whom it may concern ASE compensating parameter use devices as described in Example 3, the present invention
Embodiment additionally provides a kind of corresponding Now therefore to all whom it may concern ASE compensating parameter application methods, and shown application method can be with
Realize, can also apply in the similar device that other similar embodiments 3 are derived, such as in device as described in Example 3
Shown in Figure 11, methods described includes：
In step 401, according to the target gain parameter value of setting, the Raman fiber in configuration Now therefore to all whom it may concern 4
The running parameter of amplifier and erbium-doped fiber amplifier.
Wherein, the running parameter of the Raman Fiber Amplifier and erbium-doped fiber amplifier includes：The Raman fiber is put
The yield value and slope value of big device, and erbium-doped fiber amplifier yield value and slope value.
In step 402, the Raman Fiber Amplifier and erbium-doped fiber amplifier of lookup and configuration from mapping relations
Target ASE compensating parameters corresponding to running parameter.
Wherein, the target ASE compensating parameters are to search to obtain from the ASE power ASE_H of many compensation, such as Fig. 3
Search and obtain in shown database.
The mapping relations may be referred to corresponding form as shown in Figure 3, and can be according to the lookup of the mapping relations
Realize step by step, for example：In the specific environment that present invention method is applicable, the slope value of its Raman Fiber Amplifier
Operating personnel are all needed to set with the slope value of erbium-doped fiber amplifier, then now step 402 will be split into：First
According to the slope value of the Raman Fiber Amplifier of setting and the slope value of erbium-doped fiber amplifier, as shown in figure 12, first is searched
Corresponding second mapping relations as shown in Figure 3, Tu12Zhong in mapping relations, what Gain_R1_E1 was represented is not single
It is worth (Gain_E_1, Gain_R_1), but one group in corresponding diagram 3, and the yield value according to Raman Fiber Amplifier and er-doped
The yield value of fiber amplifier is searched and obtains corresponding ASE offsets.
In step 403, input optical power, target ASE compensating parameters and the Er-doped fiber of erbium-doped fiber amplifier are calculated
The gain sum of amplifier, and by adjusting the gain of Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that correspondence is adjusted
The gain sum that whole rear each parameter meets input optical power, target ASE compensating parameters and erbium-doped fiber amplifier increases equal to target
Beneficial parameter value.Now, the ASE compensation of Now therefore to all whom it may concern is just completed.
Embodiment 5:
The embodiment of the present invention, is to be directed to the specific descriptions realized in embodiment 4 in step 403 after content expansion, the tune
The gain of whole Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that correspondence adjustment after each parameter meet input optical power,
Target ASE compensating parameters and the gain sum of erbium-doped fiber amplifier are equal to target gain parameter value, specifically include Raman fiber
Amplifier side and/or erbium-doped fiber amplifier side, being according to Now therefore to all whom it may concern for specifically chosen which side is implemented
Any in two kinds of working methods determines in example, and the embodiment of the present invention is then the adjustment progress from erbium-doped fiber amplifier side
Illustrate, it is adaptable to the two kinds of Now therefore to all whom it may concern mode of operations introduced in embodiment 1, as shown in figure 13, including：
In step 601, the power output P_E_OUT of erbium-doped fiber amplifier is obtained.
As shown in figure 8, the power output P_E_OUT that PD detects erbium-doped fiber amplifier can be exported by EDFA.
In step 602, calculate obtain the input power P_E_IN of erbium-doped fiber amplifier, target ASE compensating parameters and
The gain G ain_E of doped fiber amplifier summation EDFA_ALL.
As shown in figure 8, the power output P_E_IN that PD detects erbium-doped fiber amplifier can be inputted by EDFA.Institute
State Now therefore to all whom it may concern and be operated in mode of operation described in embodiment 1 for the moment, shown target ASE compensating parameters can pass through class
Inquiry is obtained in database like shown in Fig. 3；And it is operated in the mode of operation described in embodiment 1 in the Now therefore to all whom it may concern
When two, shown target ASE compensating parameters can be obtained by being inquired about in database similar to Figure 4.Wherein, Er-doped fiber is put
The input power P_E_IN of big device for the moment, is embodied in the optical signal after amplifying via RFA in above-mentioned mode of operation；And er-doped
The input power P_E_IN of fiber amplifier is embodied in the optical signal of light source in above-mentioned mode of operation two.
In step 603, the power output and the summation EDFA_ALL of relatively more described erbium-doped fiber amplifier.
In step 604, if equal, represent to reach EDFA target gain；If unequal, by adjusting RFA
And/or EDFA pump power is until both are equal.
Wherein, regulation RFA and/or EDFA pump power is required for searching mapping relations again each time, and updates use
Target ASE compensating parameter values in the calculating summation EDFA_ALL.Certainly, if EDFA pump power is adjusted,
The corresponding gain G ain_E for being used to calculate the doped fiber amplifier in the summation EDFA_ALL is also required to update.Then, exist
Step 603 and 604 comparison and adjustment process are re-started, until comparative result is equal.
The embodiment of the present invention is using the different ASE offsets that mode of operation is obtained are simulated, in practical application
EDFA gain is controlled so that Now therefore to all whom it may concern can reach accurate gain control effect.
According to above-mentioned ASE compensation method, the mode of operation for setting Now therefore to all whom it may concern is one-piece pattern, in 100km
Transmission Fibers in, the gain for setting RFA is 10dB, EDFA gain from 10dB to 25dB, the actual measurement obtained gain of control with
The error of target gain is as shown in figure 14.Wherein abscissa is sets gain, and unit is dB, and ordinate is error.
According to above-mentioned ASE compensation method, the mode of operation for setting Now therefore to all whom it may concern is stand-alone mode, in 100km
Transmission Fibers in, set RFA gain be 10dB, EDFA gain from 10dB to 25dB, survey EDFA gain with and mesh
The error for marking gain is as shown in figure 15, and wherein abscissa is sets gain, and unit is dB, and ordinate is error.
It can be seen from the result of actual test, the Now therefore to all whom it may concern that thus method is controlled, its gain accuracy can be controlled
Make within ± 0.2dB.
What deserves to be explained is, in information exchange, implementation procedure between module, unit in said apparatus and system etc.
Hold, due to being based on same design with the processing method embodiment of the present invention, particular content can be found in the inventive method embodiment
Narration, here is omitted.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (13)
1. a kind of Now therefore to all whom it may concern ASE compensating parameter acquisition methods, put using by Raman Fiber Amplifier and Er-doped fiber
The Now therefore to all whom it may concern that big device is constituted, the Now therefore to all whom it may concern by access optical system for testing, the optical system for testing by light source,
Adjustable attenuator, Now therefore to all whom it may concern and spectroanalysis instrument are sequentially connected composition, it is characterised in that Now therefore to all whom it may concern
Control port is connected to regulation device, and method includes：
According to Now therefore to all whom it may concern involved one group or multigroup optical signal parameters in the work environment, the light source is set
And adjustable attenuator so that the optical signal for entering Now therefore to all whom it may concern reaches specified requirement；
One or more optical splitter is provided with the test light-path of the Raman Fiber Amplifier and erbium-doped fiber amplifier,
The drop two port connection laser detector of the optical splitter；The laser detector be used for will the detection content feed that get to point
End is analysed, so as to which after analysis result is drawn, Raman Fiber Amplifier and/or Erbium-doped fiber amplifier are adjusted by the regulation device
The running parameter of device so that the optical signal that the spectroanalysis instrument is detected meets predetermined optical signal amplification result, and records
Corresponding adjusting parameter；
Optical signal simulation in multigroup working environment is completed, and correspondence Raman Fiber Amplifier and/or Er-doped fiber are put
After big device running parameter adjustment, according to the work after multigroup Raman Fiber Amplifier and/or erbium-doped fiber amplifier adjustment
Parameter calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence.
2. Now therefore to all whom it may concern ASE compensating parameter acquisition methods according to claim 1, it is characterised in that Raman light
The running parameter of fiber amplifier and erbium-doped fiber amplifier includes：
The yield value and slope value of the Raman Fiber Amplifier, and erbium-doped fiber amplifier yield value and slope value.
3. Now therefore to all whom it may concern ASE compensating parameter acquisition methods according to claim 2, it is characterised in that when described
It is described according to multigroup Raman Fiber Amplifier when Raman Fiber Amplifier and erbium-doped fiber amplifier are operated in one-piece pattern
And/or the running parameter after erbium-doped fiber amplifier adjustment calculates the ASE compensation ginsengs for obtaining optical signal in each working environment of correspondence
Number, is specifically included：
According to ASE offsets ASE_H and the running parameter of graceful fiber amplifier and erbium-doped fiber amplifier the first formula relationship,
The running parameter obtained after multigroup Raman Fiber Amplifier and erbium-doped fiber amplifier adjustment is substituted into first formula, calibration
Obtain the coefficient in the formula relationship；First formula is：
ASE_H=(k1*Gain_R_m+k2*Tilt_R_x+B1) * Gain_E_n+k3*Gain_E_n+k4*Tilt_E_y+B2
Wherein, Gain_R_m and Gain_E_n represent m-th of the gain parameter and Er-doped fiber of Raman Fiber Amplifier and put respectively
N-th of gain parameter of big device；Tilt_R_x and Tilt_E_y represent Raman Fiber Amplifier and erbium-doped fiber amplifier respectively
Slope；Wherein, k1, k2, k3, k4, B1 and B3 are the coefficient, and described m, n, x and y are natural number.
4. Now therefore to all whom it may concern ASE compensating parameter acquisition methods according to claim 2, it is characterised in that when described
When Now therefore to all whom it may concern is operated in stand-alone mode, then running parameter after being adjusted according to erbium-doped fiber amplifier, which is calculated, to be obtained pair
The ASE compensating parameters of optical signal in each working environment are answered, are implemented as：
According to ASE offsets ASE_H and the second formula of the running parameter of erbium-doped fiber amplifier, multigroup Raman fiber is amplified
Running parameter after device and erbium-doped fiber amplifier adjustment substitutes into second formula, calibration obtain be in second formula
Number；Second formula is：
ASE_H=k5*Gain_E_n+k6*Tilt_E_y+B3；After the second formula and the adjustment of multigroup erbium-doped fiber amplifier
Running parameter, calibration obtain coefficient k 5, k6 and B3.
5. Now therefore to all whom it may concern ASE compensating parameter acquisition methods according to claim 3, it is characterised in that when described
It is when Now therefore to all whom it may concern is operated in one-piece pattern, then described according to the multigroup Raman Fiber Amplifier and/or Er-doped fiber
Running parameter after amplifier adjustment calculates the ASE compensating parameters for obtaining optical signal in each working environment of correspondence, specifically includes：
The running parameter of one group or multigroup Raman Fiber Amplifier and erbium-doped fiber amplifier is selected, the first formula is imported：
ASE_H=(k1*Gain_R_m+k2*Tilt_R_x+B1) * Gain_E_n+k3*Gain_E_n+k4*Tilt_E_y+B2,
Obtain one or more ASE compensating parameter；By each ASE compensating parameters with accordingly importing the Raman Fiber Amplifier of formula and mixing
The running parameter of doped fiber amplifier sets up mapping relations.
6. the ASE compensating parameter application methods of a kind of Now therefore to all whom it may concern, it is characterised in that usage right requires 1- in method
5 any Now therefore to all whom it may concern ASE compensating parameters acquisition methods, which are calculated, obtains multiple ASE compensating parameters, and each ASE is mended
Repay parameter and the running parameter of the corresponding Raman Fiber Amplifier for importing formula and erbium-doped fiber amplifier sets up mapping relations, have
Body：
The mapping relations are stored in the regulation device of Now therefore to all whom it may concern；
The regulation device receives the running parameter of current Now therefore to all whom it may concern, the running parameter of the Now therefore to all whom it may concern
Running parameter including Raman Fiber Amplifier and/or erbium-doped fiber amplifier；
According to the Raman Fiber Amplifier and/or the running parameter of erbium-doped fiber amplifier, search what is stored in regulation device
Mapping relations obtain ASE compensating parameters；
Using the ASE compensating parameters as current Now therefore to all whom it may concern ASE compensating parameters.
7. Now therefore to all whom it may concern ASE compensation methodes according to claim 6, it is characterised in that the Raman fiber is put
The running parameter of big device includes the yield value and slope value of the Raman Fiber Amplifier；The work of the erbium-doped fiber amplifier
Parameter includes the yield value and slope value of erbium-doped fiber amplifier.
8. the Now therefore to all whom it may concern ASE compensation methodes according to claim 6 or 7, it is characterised in that the mapping relations
It is made up of multigroup comprising Raman Fiber Amplifier yield value, Gain in Er-Doped Fiber Amplifiers value and ASE offsets, wherein, drawing
In the case of slope and erbium-doped fiber amplifier the slope setting of graceful fiber amplifier, every a pair of Raman Fiber Amplifiers yield value
An ASE offsets corresponding with Gain in Er-Doped Fiber Amplifiers value.
9. a kind of Now therefore to all whom it may concern ASE compensating parameter use devices, including the amplification of light source, adjustable attenuator, hybrid fiber
Device, it is characterised in that the light source, adjustable attenuator and Now therefore to all whom it may concern are sequentially connected, wherein, Now therefore to all whom it may concern
Control port be connected to regulation device, the regulation device includes that Raman Fiber Amplifier regulates and controls subelement and Er-doped fiber is put
Big device regulation and control subelement, specifically：
Light signal output end mouthful the first signal light splitting coupler of connection of the Raman Fiber Amplifier, the first signal light splitting
The drop two port connection laser detector of coupler, the light-emitting window connection secondary signal light splitting coupling of the first signal light splitting coupler
Clutch；
The drop two port connection laser detector of the secondary signal light splitting coupler, the light extraction of the secondary signal light splitting coupler
Mouthful connection erbium-doped fiber amplifier, the light-emitting window of the erbium-doped fiber amplifier connects the 3rd signal light splitting coupler, and described the
The drop two port connection laser detector of three signal light splitting couplers；
The control port of wherein described Raman Fiber Amplifier is connected with Raman Fiber Amplifier regulation and control subelement；It is described to mix
The control port of doped fiber amplifier is connected with erbium-doped fiber amplifier regulation and control subelement.
10. Now therefore to all whom it may concern ASE compensating parameter use devices according to claim 9, it is characterised in that the drawing
Graceful fiber amplifier includes the first pump signal wave multiplexer and RFA pump units, wherein, the first pump signal wave multiplexer is defeated
Enter end connection adjustable attenuator, the coupled end of the first pump signal wave multiplexer connects the RFA pump units, described first
The output port of pump signal wave multiplexer is the light signal output end mouthful of Raman Fiber Amplifier；The Raman Fiber Amplifier is adjusted
Control subelement is specifically connected with the RFA pump units in the Raman Fiber Amplifier.
11. the Now therefore to all whom it may concern ASE compensating parameter use devices according to claim 9 or 10, it is characterised in that institute
Stating erbium-doped fiber amplifier includes the second pump signal wave multiplexer and EDFA pump units, wherein, second pump signal is closed
Ripple device input connects secondary signal light splitting coupler, and the coupled end of the second pump signal wave multiplexer connects the EDFA pumps
Pu unit, the output port of the second pump signal wave multiplexer is the light signal output end mouthful of erbium-doped fiber amplifier, and
Connect one or three signal light splitting couplers；Erbium-doped fiber amplifier regulation and control subelement specifically with the erbium-doped fiber amplifier
EDFA pump units be connected；Wherein, the drop two port of the secondary signal light splitting coupler and the 3rd signal light splitting coupler point
Lian Jie not EDFA input optical signals detector and EDFA output optical signal detectors.
12. a kind of Now therefore to all whom it may concern ASE compensating parameter application methods, it is characterised in that methods described includes：
According to the target gain parameter value of setting, Raman Fiber Amplifier and Er-doped fiber in configuration Now therefore to all whom it may concern are put
The running parameter of big device；
Searched from mapping relations corresponding to Raman Fiber Amplifier and the running parameter of erbium-doped fiber amplifier with configuring
Target ASE compensating parameters；
The gain sum of input optical power, target ASE compensating parameters and the erbium-doped fiber amplifier of erbium-doped fiber amplifier is calculated,
And by adjusting the gain of Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that each parameter meets defeated after correspondence adjustment
The gain sum of optical power, target ASE compensating parameters and erbium-doped fiber amplifier is equal to target gain parameter value.
13. Now therefore to all whom it may concern ASE compensating parameter application methods according to claim 12, it is characterised in that described
Adjust the gain of Raman Fiber Amplifier and/or erbium-doped fiber amplifier so that each parameter meets input light work(after correspondence adjustment
The gain sum of rate, target ASE compensating parameters and erbium-doped fiber amplifier is equal to target gain parameter value, specifically includes：
Obtain the power output P_E_OUT of erbium-doped fiber amplifier；
Calculate input power P_E_IN, target ASE compensating parameters and the doped fiber amplifier gain for obtaining erbium-doped fiber amplifier
Summation EDFA_ALL；
Compare the power output of the erbium-doped fiber amplifier and the summation EDFA_ALL of the doped fiber amplifier gain；
If equal, represent to reach EDFA target gain；If unequal, by the pumping work(for adjusting RFA and/or EDFA
It is blunt equal to both.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768510A (en) * | 2018-06-27 | 2018-11-06 | 武汉光迅科技股份有限公司 | The equivalent 0km splicing losses acquisition methods of Fiber Node and device in a kind of Raman Fiber Amplifier |
| CN108833003A (en) * | 2018-06-27 | 2018-11-16 | 武汉光迅科技股份有限公司 | The equivalent 0km splicing loss acquisition methods of fiber attenuation coefficient and device in a kind of Raman Fiber Amplifier |
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| CN109946047B (en) * | 2019-04-02 | 2020-09-08 | 南京聚科光电技术有限公司 | Technology for measuring phase frequency noise characteristics of weak laser signals |
| CN113746557A (en) * | 2021-11-08 | 2021-12-03 | 北京邮电大学 | Regulation and control method based on erbium-doped and Raman amplifier and hybrid amplifier |
| CN113746557B (en) * | 2021-11-08 | 2022-02-15 | 北京邮电大学 | Regulation and control method based on erbium-doped and Raman amplifier and hybrid amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110350977B (en) | 2022-05-13 |
| CN110350977A (en) | 2019-10-18 |
| CN107332607B (en) | 2019-11-26 |
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