CN108039915A - One kind cascade variable optical power unit fast synergistic control method and device - Google Patents
One kind cascade variable optical power unit fast synergistic control method and device Download PDFInfo
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- CN108039915A CN108039915A CN201711326702.9A CN201711326702A CN108039915A CN 108039915 A CN108039915 A CN 108039915A CN 201711326702 A CN201711326702 A CN 201711326702A CN 108039915 A CN108039915 A CN 108039915A
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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
- H04B10/50—Transmitters
- H04B10/564—Power control
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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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/672—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal
Abstract
The present invention relates to a kind of cooperative control method and device, belong to technical field of photo communication, be specifically related to a kind of cascade variable optical power unit fast synergistic control method and device.This method and device are demarcated the gain/attenuation control parameter of single variable optical power gain/attenuation unit by certain resolution ratio according to the actual requirements, two-step evolution parameter combination is formed into a control parameter matrix into control parameter array, all control parameter arrays.Different two-step evolution targets is abstracted as on control parameter matrix certain element to the different jump strategies of next element, so as to quick search to the two-step evolution parameter for realizing control targe, the final fast synergistic control for realizing cascade variable optical power gain/attenuation unit.
Description
Technical field
The present invention relates to a kind of cooperative control method and device, belong to technical field of photo communication, be specifically related to a kind of level
Join variable optical power unit fast synergistic control method and device.
Background technology
Variable optical attenuator (Variable Optical Attenuator, VOA), Dynamic Gain Equalizer (dynamic
Gain equalizer, DGE), erbium-doped fiber amplifier (erbium-doped optical fiber amplifier,
EDFA), semiconductor optical amplifier (semiconductor optical amplifier, SOA) etc. is typical in fiber optic communication
Variable optical power gain or attenuation units, are realized to the real-time of channel luminous power by providing decay or gain to input signal
Control.In the design of actual optic communication device, subsystem and system, it is often necessary to the gain of above variable optical power or decline
Subtract unit cascaded use, such as the EDFA of two-stage amplification, the receiving terminal of CFP modules integrate VOA and SOA of cascade etc..
Control for cascading variable optical power gain/attenuation unit, generally first determines the adjustable extent of two-stage unit,
And the priority strategy that two-stage is adjusted, then the two units are serially adjusted successively, the finally influence to luminous power is two-stage
The linear superposition of gain/attenuation.Such control method is clear in process CIMS, but the time controlled is longer, and works as plan
When slightly changing, control method needs to compare big adjustment.
The content of the invention
The present invention mainly solves the above-mentioned technical problem present in the prior art, there is provided one kind cascade can darkening work(
Rate unit fast synergistic control method and device.This method and device according to the actual requirements by certain resolution ratio calibration is single can
Become the gain/attenuation control parameter of optical power gain/attenuation units, by two-step evolution parameter combination into control parameter array, institute
Some control parameter arrays form a control parameter matrix.Different two-step evolution targets is abstracted as on control parameter matrix
Certain element to next element different jump strategies so that quick search is to the two-step evolution parameter for realizing control targe, finally
Realize the fast synergistic control of cascade variable optical power gain/attenuation unit.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
A kind of fast synergistic control method for cascading variable optical power unit, including：
Scope demarcating steps, by the excursion of adjacent two-stage variable optical power gain or attenuation units be demarcated as respectively m,
Ordered series of numbers C1, C2 are respectively constituted after n equal portions and sequence；
Matrix construction step, control parameter matrix A, the control ginseng are formed by the various combination of element in ordered series of numbers C1, C2
The gain of the change characterization previous stage of row or attenuation change in matrix number A, the gain or decay of its change characterization rear stage arranged
Change；
Parameter finding step, determines position Q of the changed two-step evolution parameter of line status in matrix Aij, according to
The series and excursion of change search target component by row or column in a matrix.
Preferably, the fast synergistic control method of above-mentioned a kind of cascade variable optical power unit, the scope calibration step
In rapid,
By whole variable range G1 of two-stage unit, G2 is divided into m, n equal portions according to the resolution ratio r1, r2 of actual needs and gives
Calibration, wherein：G1=r1*m, G2=r2*n.=
Preferably, the fast synergistic control method of above-mentioned a kind of cascade variable optical power unit, the control parameter square
Battle array A be：
Wherein, Qij=(ai,bj)；aiFor i-th of parameter of calibrated previous stage unit, bjFor calibrated rear stage
J-th of parameter of unit.
Preferably, the fast synergistic control method of above-mentioned a kind of cascade variable optical power unit, the parameter search step
In rapid,
When the gain or decay absolute value that current primary unit needs adjust are g1, the step-length number for calculating adjustment is s1=
G1/r1, the strategy that next parameter is searched in control parameter matrix A remain unchanged for columns, according to gain or attenuation change feelings
Condition, line number redirect s1 rows up or down, i.e., next parameter is Qi-s1,jOr Qi+s1,j。
Preferably, the fast synergistic control method of above-mentioned a kind of cascade variable optical power unit, when rear stage needs to adjust
When whole gain or decay adjustment absolute value is g2, then the step-length number adjusted is s2=g2/r2, and next ginseng is searched in A matrixes
Several strategies are：Line number remains unchanged, and according to gain or attenuation change situation, columns redirects s2 row to the left or to the right, i.e., next
Parameter is Qi,j-s2Or Qi,j+s1。
Preferably, the fast synergistic control method of above-mentioned a kind of cascade variable optical power unit, when calculated value exceedes square
During battle array scope, the boundary value for taking matrix is next parameter.
A kind of fast synergistic control device for cascading variable optical power unit, including：
Scope demarcating module, by the excursion of adjacent two-stage variable optical power gain or attenuation units be demarcated as respectively m,
Ordered series of numbers C1, C2 are respectively constituted after n equal portions and sequence；
Matrix builds module, and the various combination of element in ordered series of numbers C1, C2 is formed control parameter matrix A, the control ginseng
The gain of the change characterization previous stage of row or attenuation change in matrix number A, the gain or decay of its change characterization rear stage arranged
Change；
Parameter searching module, determines position Q of the changed two-step evolution parameter of line status in matrix Aij, according to
The series and excursion of change search target component by row or column in a matrix.
Preferably, the fast synergistic control device of above-mentioned a kind of cascade variable optical power unit, the scope calibration mold
In block,
By whole variable range G1 of two-stage unit, G2 is divided into m, n equal portions according to the resolution ratio r1, r2 of actual needs and gives
Calibration, wherein：G1=r1*m, G2=r2*n.
Preferably, the fast synergistic control device of above-mentioned a kind of cascade variable optical power unit, the control parameter square
Battle array A be：
Wherein, Qij=(ai,bj)；aiFor i-th of parameter of calibrated previous stage unit, bjFor calibrated rear stage
J-th of parameter of unit.
Preferably, the fast synergistic control device of above-mentioned a kind of cascade variable optical power unit, the parameter search mould
In block,
When the gain or decay absolute value that current primary unit needs adjust are g1, the step-length number for calculating adjustment is s1=
G1/r1, the strategy that next parameter is searched in control parameter matrix A remain unchanged for columns, according to gain or attenuation change feelings
Condition, line number redirect s1 rows up or down, i.e., next parameter is Qi-s1,jOr Qi+s1,j。
Therefore, the invention has the advantages that：, can when being controlled to cascade variable optical power gain/attenuation unit
The control parameter of quick definite two-stage, the control adjustment needed so as to Rapid Implementation；If coordinate the parallel control such as FPGA
Hardware, or even can realize the quick of two-stage while control.The present invention can quickly realize cascade variable optical power gain/attenuation
The Collaborative Control of unit so that using the optic communication device or system of the present invention, can more rapidly be made when circuit changes
Accommodation, so as to improve the bit error rate of circuit, line switching time, receive and lose or receive the importance such as overload time
Energy.
Brief description of the drawings
Attached drawing 1 is a kind of principle schematic of the present invention；
Attached drawing 2 is the schematic diagram of control parameter matrix and parameter strategy of the present invention；
Wherein the 1st stage gain become larger or decay become hour parameter redirect direction D1,
1st stage gain parameter when becoming larger that diminishes or decay redirects direction D2,
2nd stage gain become larger or decay become hour parameter redirect direction D3,
2nd stage gain parameter when becoming larger that diminishes or decay redirects direction D4,
1st stage gain become larger or decay diminish and the 2nd stage gain become larger or decay become hour parameter redirect direction D5,
1st stage gain, which becomes larger or decays, to diminish and the 2nd stage gain parameter when becoming larger that diminishes or decay redirects direction D6,
1st stage gain diminish or decay become larger and the 2nd stage gain become larger or decay become hour parameter redirect direction D7,
1st stage gain, which diminishes or decays, to become larger and the 2nd stage gain parameter when becoming larger that diminishes or decay redirects direction D8.
Embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：
Step 1：Resolution ratio according to the actual requirements, by whole variable range G1 of the 1st, 2 grade of unit, G2 is according to actual need
The resolution ratio r1, r2 wanted is divided into m, n equal portions and is demarcated, then G1=r1*m, G2=r2*n.
Step 2：The calibrated parameter of step 1 is formed into two-stage independent control parameter table C1, C2, according to two-stage variable light work(
Rate gain/attenuation module gain is from big to small or decay parameter from small to large is arranged as C1={ a1,a2,……amAnd C2=
{b1,b2,……bn}。
Step 3：Respectively take 1 element array synthesis control parameter array Q successively from C1, C211, Q12,……Qmn, access
Principle is, its change of the 1st subscript from small to large represents the 1st stage gain from big to small or decay change from small to large, its
The change of 2nd subscript from small to large represents the 2nd stage gain from big to small or decay change from small to large, i.e. Q11={ a1,
b1},Q12={ a1,b2},……,Q1n={ a1,bn},Q21={ a1,b1},……,Qmn={ am,bn}。
Step 4：All control parameter arrays are formed into a control parameter matrix A, the element of the i-th row is Qi1,
Qi2... ... Qin, the element Q of jth row1j, Q2j... ... Qmj, i.e. A matrixes are
Step 5：Line status is monitored in real time, when line status does not change, step 5 is maintained at, works as line
When line state changes, step 6 is jumped to.
Step 6：It is Q to determine position of the current two-step evolution parameter in matrix Aij, calculate the adjustment of two-stage gain/attenuation
Target, if the 1st grade needs to adjust, jumps to step 7；If the 1st grade need not adjust, step 8 is jumped to.
Step 7：The absolute value for calculating 1 stage gain/decay adjustment is g1, and the step-length number for calculating adjustment is s1=g1/r1,
When be adjusted to gain increase or decay reduce when, the strategy that next parameter is searched in A matrixes remains unchanged for columns, line number to
On redirect s1 rows, i.e., next parameter is Qi-s1,j；When being adjusted to gain reduction or decay increase, next ginseng is searched in A matrixes
Several strategies remain unchanged for columns, and line number redirects downwards s1 rows, i.e., next parameter is Qi+s1,j.According to the parameter control found
Actual hardware is made, then branches to step 8.
Step 8：The target that 2 stage gains calculated according to step 6/decay adjusts, if the 2nd grade needs to adjust, redirects
To step 9；If the 2nd grade need not adjust, step 5 is jumped to.
Step 9：The absolute value for calculating 2 stage gains/decay adjustment is g2, then the step-length number adjusted is s2=g2/r2, when
When being adjusted to gain increase or decay reduction, the strategy that next parameter is searched in A matrixes remains unchanged for line number, and columns is to the left
S2 row are redirected, i.e., next parameter is Qi,j-s2；When being adjusted to gain reduction or decay increase, next parameter is searched in A matrixes
Strategy remained unchanged for line number, columns redirect to the right s1 row, i.e., next parameter is Qi,j+s1.According to the state modulator found
Actual hardware, then branches to step 5.
In above step 7 and step 9, bound protection is done to the value of next parameter, when calculated value exceedes matrix model
When enclosing, the boundary value for taking matrix is next parameter, to ensure the real work scope no more than hardware and try one's best close to reality
Control targe.
According to above example, when being controlled to cascade variable optical power gain/attenuation unit, two can be quickly determined
The control parameter of level, the control adjustment needed so as to Rapid Implementation；If coordinate the parallel control hardware such as FPGA, or even energy
Enough realize the quick of two-stage while control.The association of cascade variable optical power gain/attenuation unit can be quickly realized in effect
With control so that, accommodation can be more rapidly made when circuit changes, so as to improve the bit error rate of circuit, circuit
Switching time, receive and lose or receive the important performances such as overload time.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
Generation, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (10)
- A kind of 1. fast synergistic control method for cascading variable optical power unit, it is characterised in that including：Scope demarcating steps, are demarcated as m, n etc. respectively by the excursion of adjacent two-stage variable optical power gain or attenuation units Ordered series of numbers C1, C2 are respectively constituted after part and sequence；Matrix construction step, control parameter matrix A, the control parameter square are formed by the various combination of element in ordered series of numbers C1, C2 The gain of the change characterization previous stage of row or attenuation change in battle array A, the change of gain or the decay of its change characterization rear stage arranged Change；Parameter finding step, determines position Q of the changed two-step evolution parameter of line status in matrix Aij, according to change Series and excursion in a matrix by row or column search target component.
- A kind of 2. fast synergistic control method for cascading variable optical power unit according to claim 1, it is characterised in that In the scope demarcating steps,By whole variable range G1 of two-stage unit, G2 is divided into m, n equal portions according to the resolution ratio r1, r2 of actual needs and is marked It is fixed, wherein：G1=r1*m, G2=r2*n.
- A kind of 3. fast synergistic control method for cascading variable optical power unit according to claim 1, it is characterised in that The control parameter matrix A is：Wherein, Qij=(ai,bj)；aiFor i-th of parameter of calibrated previous stage unit, bjFor calibrated rear stage unit J-th of parameter.
- A kind of 4. fast synergistic control method for cascading variable optical power unit according to claim 1, it is characterised in that In the parameter finding step,When the gain or decay absolute value that current primary unit needs adjust are g1, the step-length number for calculating adjustment is s1=g1/r1, The strategy that next parameter is searched in control parameter matrix A remains unchanged for columns, according to gain or attenuation change situation, line number S1 rows are redirected up or down, i.e., next parameter is Qi-s1,jOr Qi+s1,j。
- A kind of 5. fast synergistic control method for cascading variable optical power unit according to claim 1, it is characterised in thatWhen the gain or decay adjustment absolute value that rear stage needs adjust are g2, then the step-length number adjusted is s2=g2/r2, The strategy that next parameter is searched in A matrixes is：Line number remains unchanged, according to gain or attenuation change situation, columns to the left or to The right side redirects s2 row, i.e., next parameter is Qi,j-s2Or Qi,j+s1。
- A kind of 6. fast synergistic control method for cascading variable optical power unit according to claim 1, it is characterised in that When calculated value exceedes matrix scope, the boundary value for taking matrix is next parameter.
- A kind of 7. fast synergistic control device for cascading variable optical power unit, it is characterised in that including：Scope demarcating module, is demarcated as m, n etc. respectively by the excursion of adjacent two-stage variable optical power gain or attenuation units Ordered series of numbers C1, C2 are respectively constituted after part and sequence；Matrix builds module, and the various combination of element in ordered series of numbers C1, C2 is formed control parameter matrix A, the control parameter square The gain of the change characterization previous stage of row or attenuation change in battle array A, the change of gain or the decay of its change characterization rear stage arranged Change；Parameter searching module, determines position Q of the changed two-step evolution parameter of line status in matrix Aij, according to change Series and excursion in a matrix by row or column search target component.
- A kind of 8. fast synergistic control device for cascading variable optical power unit according to claim 7, it is characterised in that In the scope demarcating module,By whole variable range G1 of two-stage unit, G2 is divided into m, n equal portions according to the resolution ratio r1, r2 of actual needs and is marked It is fixed, wherein：G1=r1*m, G2=r2*n.
- A kind of 9. fast synergistic control device for cascading variable optical power unit according to claim 7, it is characterised in that The control parameter matrix A is：Wherein, Qij=(ai,bj)；aiFor i-th of parameter of calibrated previous stage unit, bjFor calibrated rear stage unit J-th of parameter.
- 10. a kind of fast synergistic control device for cascading variable optical power unit according to claim 7, its feature exist In, in the parameter searching module,When the gain or decay absolute value that current primary unit needs adjust are g1, the step-length number for calculating adjustment is s1=g1/r1, The strategy that next parameter is searched in control parameter matrix A remains unchanged for columns, according to gain or attenuation change situation, line number S1 rows are redirected up or down, i.e., next parameter is Qi-s1,jOr Qi+s1,j。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112737697A (en) * | 2021-01-19 | 2021-04-30 | 成都新易盛通信技术股份有限公司 | Method for quickly controlling adjustable light amplification unit |
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