CN108760244B - A kind of high-resolution optical information networks device and method - Google Patents
A kind of high-resolution optical information networks device and method Download PDFInfo
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Abstract
The present invention relates to optical information networks technical fields, provide a kind of high-resolution optical information networks device and method.Wherein photodetector array 5 is fixed on the servo motor 6 of achievable high-precision rotary in device, the shaft of servo motor 6 is vertical with photodetector array 5, and the optical axis coincidence of rear center's wavelength is divided with grating 3, servo motor 6 rotationally and/or translationally, can make photodetector array be divided direction relative to grating 3 and rotate and/or translate around own torque.The present invention is not under the premise of dramatically increasing size and cost, photodetector array is driven to complete preset rotation/translation motion using servo motor, to acquire and store a series of picture dot distribution results of corresponding a certain imaging, and the calculation procedure by being preset in data processing circuit, realize high-resolution optical information networks.
Description
[technical field]
The present invention relates to optical information networks technical fields, more particularly to a kind of high-resolution optical information networks device and side
Method.
[background technique]
With the increase of network traffic data demand, optical network band width requires higher and higher.The raising of spectrum efficiency, bring
It is more and more narrow channel wavelength interval, the spectral resolution bandwidth of optical information networks module is put forward higher requirements.Such as
The channel spacing of 12.5GHz, it is desirable that the resolution ratio of optical information networks module will at least reach 6.25GHz.It is traditional based on grating
Optical information networks module, be limited to detector Pixel size, spectral resolution is difficult to very high.If using light is similar to
The light path design of spectrometer can achieve very high resolution ratio, but the size of module and cost can greatly increase again.
In consideration of it, overcoming defect present in the prior art is the art urgent problem to be solved.
[summary of the invention]
Technical problems to be solved of the embodiment of the present invention are realized a kind of high under the premise of not dramatically increasing size and cost
The optical property of resolution ratio monitors.
The further technical problems to be solved of the embodiment of the present invention are to be irradiated to photodetection for passing through grating in spectrum
When hot spot in device array partly overlaps, how effectively to complete to monitor and identify.
The embodiment of the present invention adopts the following technical scheme that
In a first aspect, device includes optical input port 1 the present invention provides a kind of high-resolution optical information networks device,
Collimation lens 2, grating 3, condenser lens 4, photodetector array 5, at servo motor 6, motor driving controling circuit 7 and data
Manage circuit 8, wherein the photodetector array 5 is fixed on the servo motor 6 of achievable high-precision rotary, the servo
The shaft of motor 6 is vertical with the photodetector array 5, and the optical axis coincidence with the grating 3 light splitting rear center's wavelength, institute
Servo motor 6 is stated around own torque rotationally and/or translationally, the photodetector array can be made to be divided direction relative to grating 3
It rotates and/or translates；
Wherein, the signal output port of the photodetector array 5 is also connect with the data processing circuit 8；It is described
Servo motor 6 connects the motor driving controling circuit 7；Also, the motor driving controling circuit 7 is also connected at the data
Circuit 8 is managed, for obtaining the driving instruction for the servo motor 6 of the transmission of data processing circuit 8.
Preferably, the 3-5dB bandwidth imaging size that grating 3 is imaged on the photodetector array 5 after being divided, is less than
Two pixel spacing in photodetector array 5.
Preferably, the monitoring device includes translation motor 61 and rotating electric machine 62, the translation motor 61 and electric rotating
Machine 62 is respectively connected with the motor driving controling circuit 7, for the driving current in the motor driving controling circuit 7
Lower corresponding translation and/or the rotary photoelectric completed is with regard to the movement of detector array.
Preferably, the grating 3 has double-layer grating structure, wherein parallel between first layer grating and second layer grating
Setting, is produced in the incidence surface side and light-emitting surface side of grating 3.
Preferably, 1530nm~1565nm, 1565nm~1625nm of L-band that photoelectricity is visited.
Second aspect, the present invention also provides a kind of high-resolution optical information networks methods, using as described in relation to the first aspect
High-resolution optical information networks device, method includes:
On the initial position of the photodetector array 5, first is collected by the photodetector array 5
Imaging spectral, first imaging spectral pass to the data processing circuit 8 by the photodetector array 5；
The data processing circuit 8 sends driving instruction, the drive and control of electric machine to the motor driving controling circuit 7
Circuit 7 controls the rotation that the servo motor 6 completes preset n-1 rotational angle, so as to the data processing circuit 8 acquisition
Collected the second to the n-th imaging spectral of photodetector array；
The n imaging spectral is substituted into the first calculation expression by the data processing circuit 8, completes the picture of spectrum picture
The calculating of first reading value.
Preferably, first calculation expression, specifically:
Wherein, dn(j) indicate that the spectrum reading value of j-th of pixel of n-th of spectrum, K are on rotation the latter CCD pixel
The number of regions of the spectrum to be asked of covering, f (i) indicate the reading value of i-th of pixel of spectrum picture to be asked, the spectrum one to be asked
Shared M × N number of pixel,Indicate that f (i) falls in dn(j) part on accounts for the ratio of f (i), and above equation can arrange altogether M
× N number of；
The above M × N number of equation composition equation group is sought, it can be in the hope of M × N number of picture of the high-resolution spectroscopy image
First reading value f (i).
Preferably, after the angle rotational angle θ meets rotation each time, less than one pixel of rotation distance on electric explorer side
The size of point.
Preferably, also related with the required precision of monitoring in the rotational angle θ, wherein the precision of monitoring gets over Gao Suoshu
The number of rotation is more.
Preferably, the data processing circuit 8 is analyzed according to the calculated result of the pixel reading value of the spectrum picture
Distributing position and hot spot of each hot spot in photodetector array 5 in the frequency distribution of spectrum and spectrum under first stage
Size, the monitoring method further include:
The data processing circuit 8 be each hot spot determine one with wherein axial line distance less than one of preset threshold or
The multiple second stage of person monitor pixel；Wherein, the central axes are parallel with the direction that servo motor 6 translates；
The data processing circuit 8 sends control instruction to the motor driving controling circuit 7, so as to the motor driven
Control circuit 7 drives the servo motor 6 to complete the respectively translation with corresponding second stage monitoring pixel for each hot spot
Operation, wherein the translation includes that hot spot is gradually translated by the state for being irradiated to the side of corresponding second stage monitoring pixel
To the state for the other side for being irradiated to corresponding second stage monitoring pixel；
The data processing circuit 8 monitors the continuous light intensity waveform that pixel returns according to each second stage, determines the first rank
Hot spot involved in the frequency distribution of the lower spectrum of section partly overlaps and the hot spot that is not effectively recognized.
Compared with prior art, the beneficial effect of the embodiment of the present invention is:
The present invention drives photodetector array complete under the premise of not dramatically increasing size and cost, using servo motor
At preset rotation/translation motion, to acquire and store a series of picture dot distribution results of corresponding a certain imaging, and pass through
The calculation procedure being preset in data processing circuit realizes high-resolution optical information networks.I.e. in the prior art
The channel spacing of 12.5GHz, it is desirable that the resolution ratio of optical information networks module will at least reach 6.25GHz and higher frequency is logical
The channel of road such as 25GHz 50GHz frequency, can be used the method that the embodiment of the present invention is proposed and takes to realize in light source
Differentiation and identification with different frequency optical signal.
Further, it in currently preferred implementation, additionally provides for there is part hot spot to overlap in spectrum
In the case where detection mode.The robustness for being applicable in complex environment of solution proposed by the invention is extended, equally
It can be according to the analysis result of respective extension functional check first stage.
[Detailed description of the invention]
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of configuration diagram of high-resolution optical information networks device provided in an embodiment of the present invention；
Fig. 2 is the pixel quantity schematic diagram of photodetector array in the embodiment of the present invention；
Fig. 3 is the schematic diagram that ellipse light spot is imaged in photodetector array in the embodiment of the present invention；
Fig. 4 is the spectroscopic data figure of single-wavelength light imaging on photosensor arrays in the embodiment of the present invention；
Fig. 5 is the configuration diagram of another high-resolution optical information networks device provided in an embodiment of the present invention；
Fig. 6 is a kind of optical grating construction schematic diagram with two-sided grating layer structure provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram of high-resolution optical information networks method provided in an embodiment of the present invention；
Fig. 8 is the high-low resolution pixel comparison diagram on photosensor arrays provided in an embodiment of the present invention；
Fig. 9 is photosensor arrays rotating coordinate transformation schematic diagram provided in an embodiment of the present invention；
Figure 10 is that photosensor arrays provided in an embodiment of the present invention rotate pixel transformation relation schematic diagram；
Figure 11 is the light for doubling resolution ratio that ellipse light spot provided in an embodiment of the present invention passes through that calculation processing obtains
Spectrogram；
Figure 12 is original photoelectric sensor array acquisition spectrum effects schematic diagram provided in an embodiment of the present invention；
Figure 13 is that the photosensor arrays after resolution ratio provided in an embodiment of the present invention improves acquire spectrum effects signal
Figure；
Figure 14 is that expansion scheme provided in an embodiment of the present invention further identifies the generation partly overlapping method flow of hot spot
Figure；
Figure 15 is during reference 5 layout type of photodetector array shown in Fig. 3 provided in an embodiment of the present invention shows
Axis and servo motor translation direction, and pixel structure relation schematic diagram is monitored relative to selected second stage；
Figure 16 is to hold the photodetector array 5 of original state shown in Figure 15 according to the operation content described in step 302
Effect diagram after row；
Figure 17 is two kinds of light intensity waveform diagrams that second stage monitoring pixel is monitored by step 302-303；
Figure 18 is two kinds of light intensity waveform diagrams that second stage monitoring pixel is monitored by step 302-303.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
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.
In the description of the present invention, term "inner", "outside", " longitudinal direction ", " transverse direction ", "upper", "lower", "top", "bottom" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention rather than
It is required that the present invention must be constructed and operated in a specific orientation, therefore it is not construed as limitation of the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of high-resolution optical information networks device, as shown in Figure 1, device includes optics
Input terminal 1, collimation lens 2, grating 3, condenser lens 4, photodetector array 5, servo motor 6, motor driving controling circuit 7
With data processing circuit 8, the photodetector array 5 is fixed on the servo motor 6 of achievable high-precision rotary, described to watch
The shaft for taking motor 6 is vertical with the photodetector array 5, and the optical axis coincidence with the grating 3 light splitting rear center's wavelength,
The servo motor 6 rotationally and/or translationally, can make the photodetector array relative to 3 side of light splitting of grating around own torque
To rotating and/or translate；
Wherein, the signal output port of the photodetector array 5 is also connect with the data processing circuit 8；It is described
Servo motor 6 connects the motor driving controling circuit 7；Also, the motor driving controling circuit 7 is also connected at the data
Circuit 8 is managed, for obtaining the driving instruction for the servo motor 6 of the transmission of data processing circuit 8.
Wherein, the optical input port can be transmission fiber, be also possible to it is a certain have multi-band optical signal output work
The optical module etc. of energy.
The embodiment of the present invention drives photodetector under the premise of not dramatically increasing size and cost, using servo motor
Array completes preset rotation/translation motion, so that a series of picture dot distribution results of corresponding a certain imaging are acquired and store,
And the calculation procedure by being preset in data processing circuit, realize high-resolution optical information networks.I.e. for the prior art
The channel spacing of middle 12.5GHz, it is desirable that the resolution ratio of optical information networks module will at least reach 6.25GHz and higher frequency
The channel of channel such as 25GHz 50GHz frequency, can be used the method that the embodiment of the present invention is proposed to realize in light source
Carry the differentiation and identification of different frequency optical signal.
In embodiments of the present invention, the photodetector array 5 is charge coupled cell of the work in communication band
CCD；Such as: the pixel of CCD is 640 × 512 shown in Fig. 2, and the size of each pixel is 20 μm of 20 μ m, optical diffraction direction
For long axis.Hot spot is elliptical spot (as shown in Figure 3), is 20 μm in the size of diffraction direction, perpendicular to the big of diffraction direction
Small is 40 μm, can adopt 640 points in wavelength diffractive direction in this way.Wherein, communication band include C-band 1530nm~
1565nm, 1565nm~1625nm of L-band.In communication band as shorter or longer range of wavelengths occurs in the differentiation of standard
When, newly-increased range of wavelengths is equally applicable to the solution that the embodiment of the present invention is proposed.
The data matrix detected is input in data processing circuit 8 and stores by photodetector array 5.The data matrix
Size be equal to photodetector pixel quantity, i.e. a pixel can export one detection value.Pass through drive and control of electric machine
Circuit 7 controls motor 6 and rotates θ (wherein, the angle θ meets size of the rotation distance on rotation back less than a pixel), light
Electric explorer array 5 rotates θ also with motor, and the hot spot distribution after condenser lens 4 on photodetector array 5 also can
Rotate θ.The data for having rotated the hot spot distribution at the angle θ are input in data processing circuit 8 and store by photodetector array 5.
It repeats the above steps to obtain n group data.As Fig. 4 be Single wavelength light incidence when, will be obtained after the data processing of each point on CCD
Each wavelength corresponding to optical power size.
In order to reach a kind of more preferably monitoring result, in conjunction with the embodiment of the present invention there is also a kind of more preferably implementation,
The 3-5dB bandwidth imaging size that the grating 3 is imaged on the photodetector array 5 after being divided, is less than photodetector
Two pixel spacing in array 5.The embodiment of the present invention needs exist for the promotion for the resolution ratio realized, outstanding advantage is embodied in hot spot
It is smaller relative to CCD, and the promotion that the inadequate situation of sampled point of CCD is done.When three dB bandwidth is greater than the distance of two pixels
When, the embodiment of the present invention equally may be implemented, but its advantage just not when three dB bandwidth less than two pixels distance when
Time highlights.Here there are several amounts, one is irradiated on the photodetector array 5 after the condenser lens 4
Hot spot size, one be pixel in photodetector array 5 (showing as CCD in embodiments of the present invention) size.Such as
The distance of center of the light of two frequencies of fruit on CCD is less than the position of their three dB bandwidth on CCD, then this two
The light of a frequency by the prior art be substantially can not separate, this be also propose the embodiment of the present invention original intention it
One.
In conjunction with the embodiment of the present invention, there is also a kind of preferred implementations, as shown in figure 5, the monitoring device includes
Translation motor 61 and rotating electric machine 62, the translation motor 61 and rotating electric machine 62 are respectively electric with the drive and control of electric machine
Road 7 is connected, and just visits for completing corresponding translation and/or rotary photoelectric under the driving current of the motor driving controling circuit 7
Survey the movement of device array.
In conjunction with the embodiment of the present invention, there is also a kind of preferred implementations, as shown in fig. 6, the grating 3 has bilayer
Optical grating construction, wherein be arranged in parallel between first layer grating and second layer grating, be produced in grating 3 incidence surface side and
Light-emitting surface side.This set can further increase spot center distance between different frequency, to improve institute of the embodiment of the present invention
The applicable band limits of the high-resolution optical information networks device of proposition, and further increase it and monitor accuracy.
Embodiment 2:
The present invention is proposing a kind of high-resolution optical information networks method as described in Example 1, uses such as embodiment 1
The high-resolution optical information networks device, as shown in fig. 7, method the following steps are included:
In step 201, on the initial position of the photodetector array 5, pass through the photodetector array 5
The first imaging spectral is collected, first imaging spectral passes to the data processing by the photodetector array 5
Circuit 8.
In step 202, the data processing circuit 8 sends driving instruction to the motor driving controling circuit 7, described
Motor driving controling circuit 7 controls the rotation that the servo motor 6 completes preset n-1 rotational angle, so as to the data
Processing circuit 8 obtains collected the second to the n-th imaging spectral of the photodetector array.Wherein, n is just intended to be promoted and divide
The 1/n of the multiple of resolution, CCD pixel is preferably greater than the three dB bandwidth of hot spot, can more highlight the embodiment of the present invention at this time and be mentioned
Scheme out compares the superiority of the prior art.
In step 203, the n imaging spectral is substituted into the first calculation expression by the data processing circuit 8, is completed
The calculating of the pixel reading value of spectrum picture.
The embodiment of the present invention drives photodetector under the premise of not dramatically increasing size and cost, using servo motor
Array completes preset rotation/translation motion, so that a series of picture dot distribution results of corresponding a certain imaging are acquired and store,
And the calculation procedure by being preset in data processing circuit, realize high-resolution optical information networks.I.e. for the prior art
The channel spacing of middle 12.5GHz, it is desirable that the resolution ratio of optical information networks module will at least reach 6.25GHz and higher frequency
The channel of channel such as 25GHz 50GHz frequency, can be used the method that the embodiment of the present invention is proposed to realize in light source
Carry the differentiation and identification of different frequency optical signal.
In embodiments of the present invention, first calculation expression, specifically:
Wherein, dn(j) indicate that the spectrum reading value of j-th of pixel of n-th of spectrum, K are on rotation the latter CCD pixel
The number of regions of the spectrum to be asked of covering, as shown in Figure 10, wherein the value of k, which shows as 6, f (i), indicates the i-th of spectrum picture to be asked
The reading value of a pixel, the spectrum one to be asked share M × N number of pixel (such as in Fig. 2 M be specially 640, N be specially 512),Indicate that f (i) falls in dn(j) part on accounts for the ratio of f (i), and above equation can arrange altogether M × N number of；
The above M × N number of equation composition equation group is sought, it can be in the hope of M × N number of picture of the high-resolution spectroscopy image
First reading value f (i).The light of two frequencies as shown in Figure 12 and Figure 13 is incident on the effect diagram on CCD.Figure 12 is original
What CCD was adopted, the light intensity magnitude value that from left to right each picture dot is collected shows as (0,5,0,5,0) this 5 values (i.e. in Figure 12
Each grid of lower section represents the pixel of a photodetector array 5).Figure 13 is to have done CCD acquisition shown in opposite Figure 12
Effect diagram after 3 times of precision promotions, then obtaining the light intensity magnitude value that each picture dot is collected shows as 15 values, tool
Body includes: (0,0,0,1,3,1,0,0,0,1,3,1,0,0,0).5 luminous intensities obtained by CCD structure shown in Figure 12 are big
Small value can only recover two points, and can be obtained by a rough shape after being promoted.This is for farther apart feelings
Condition can actually be understood as the promotion of single hot spot.
In embodiments of the present invention, first calculation expression, after the angle rotational angle θ meets rotation each time, electrical resistivity survey
Survey the size of less than the one pixel point of rotation distance on device side.Since the arc trajectory on side is inconsistent, it is preferred that here
The point of the extreme side is described.Wherein, R is determined by the angle θj(i) size, range are exactly less than one pixel on side, this
A is to calculate for convenience.
Embodiment 3:
Describing high-resolution optical information networks device as described in Example 1 and high-performance as described in Example 2
After monitoring method, the embodiment of the present invention will illustrate how the embodiment of the present invention utilizes the in conjunction with specific CCD structure application scenarios
The calculating of one calculation expression completion monitoring result.As shown in figure 3, the small rectangle in background (for the ease of identification, also specially exists
Picked in the small rectangular array first small rectangle with the mode with shade mark out come) be needed for the embodiment of the present invention
The corresponding region on detector array of each value f (j) of high sampling rate data f to be achieved；The bulk of thick line is photodetection
The size of each unit d (i) of array d has schematically carried out the mark of d (i) with the shade of another grid in Fig. 3.
Also, it is the background and photodetector array is as shown in Figure 8 with the schematic diagram after respective serial number mark respectively.
Wherein, the value for the pixel that detector array obtains can indicate are as follows:
D (1)=f (1)+f (2)
D (2)=f (3)+f (4)
……
D (n)=f (2n-1)+f (2n)
……
D (36)=f (71)+f (72)
Just there is 640 × n sampled point on optical diffraction direction.It is exactly each wavelength that the value of point on CCD is added up by column
Corresponding optical power value.When Fig. 4 is Single wavelength incidence, pass through the obtained spectral distribution graph of data on processing CCD.
Coordinate rotation relationship shown in Fig. 9:
As shown in Figure 10, before rotation A, B, C, D coordinate are as follows: A=(- 60,40), B=(- 60,20), C=(- 40,
20) when, D=(- 40,40) rotates angle, θ=5 °: A=(- 56.285,45.077), B=(- 58.028,25.153), C=(-
36.361,23.334), (- 38.105,43.410) D=.The slope K of line AB and line CDAB=KCD=11.43, line AC and line BD
Slope KAC=KBD=-0.087.LAB: y=11.43x+688.4228, LCD: y=11.43x+458.9485, LBC: y=-
0.087x+20.764, LAD: y=-0.087x+40.1528.
It is as follows by the coordinate that can be calculated E, F, G, H, I, J:
E=(- 56.730,40)
F=(- 50,24.451)
G=(- 40,23.576)
H=(- 36.653,40)
I=(- 40,43.652)
J=(- 50,44.527)
AEKJ is the area of f (1) in d (7): SAEKJ=31.3115；
JKLI is the area of f (2) in d (7): SJKLI=40.8978；
ILHD is the area of f (3) in d (7): SILHD=12.2235；
EBFK is the area of f (13) in d (7): SEBFK=112.3755；
KFGL is the area of f (14) in d (7): SKFGL=159.8661；
LGCH is the area of f (15) in d (7): SLGCH=43.3256；
It is available according to the above geometrical relationship:
D (7)=0.1566f (1)+0.2045f (2)+0.0611f (3)+0.5619f (13)+0.7993f (14)+
0.2166f(15)
It similarly can be in the hope of other d after rotation2(i) with the relationship of f, this relationship is built into data processing unit, is solved
System of linear equations can both calculate f (i), and Figure 11 is the spatial distribution obtained after handling the multi-group data that rotation obtains, adopt
Sample rate becomes original twice.The angle of rotation is more, the spectrogram of available higher resolution.
Embodiment 4:
The embodiment of the present invention is to may relate to spectrum based on the basis of embodiment 3, being further used for solving under complex environment
When being irradiated to the photodetector array 5 and partly overlapping, can not effectively be found using method described in embodiment 3 and
It copes under above situation, the expansion scheme that the embodiment of the present invention is proposed can be used and further identify that hot spot, which occurs, to partly overlap
Situation, as shown in figure 14, in the case where analyzing the first stage in the frequency distribution of spectrum and spectrum each hot spot in photodetector
Distributing position and spot size in array 5, the monitoring method further include:
In step 301, the data processing circuit 8 be each hot spot determine one be less than with wherein axial line distance it is default
One or more second stage of threshold value monitors pixel；Wherein, the central axes are parallel with the direction that servo motor 6 translates.
The central axes and servo motor translation side showed as shown in figure 15 for reference 5 layout type of photodetector array shown in Fig. 3
To, and relative to second stage monitoring pixel structure relation schematic diagram selected in Figure 15.
From in Figure 15 it is not difficult to find that partly overlapping situation for the hot spot occurred in figure, only along in two hot spots
Heart connecting line effectively could recognise that generation weight by the step 301-303 through the embodiment of the present invention as central axes
It is folded.Therefore, in the actual operation process, the translation direction that translation motor 61 is controlled generally according to the central axes, make its two
It is identical as servo motor translation direction that person's relationship meets the central axes.And referring now to selected by hot spot in figure shown in Figure 15
Second stage monitoring pixel be also one in many alternative objects, with shown in Figure 15, the central axes first on picture dot all
It can be used as second stage monitoring pixel, and why select to be marked in Figure 15 is adjustment for reduction as far as possible
The time of initial position shown in hot spot to current Figure 15 improves detection efficiency.
In step 302, the data processing circuit 8 sends control instruction to the motor driving controling circuit 7, so as to
The motor driving controling circuit 7 drives the servo motor 6 to complete respectively to supervise with corresponding second stage for each hot spot
The translation of pixel is surveyed, wherein the translation includes the side that hot spot monitors pixel by being irradiated to corresponding second stage
State gradually moves to the state for being irradiated to the other side of corresponding second stage monitoring pixel.
As shown in figure 16, for by the photodetector array 5 of original state shown in Figure 15 according to the operation described in step 302
Effect diagram after content execution.
In step 303, the data processing circuit 8 monitors the continuous light intensity wave that pixel returns according to each second stage
Shape determines the hot spot that hot spot involved in the frequency distribution of spectrum under the first stage partly overlaps and is not effectively recognized.
As shown in Figure 17 and Figure 18, two kinds of light intensity that pixel is monitored by step 302-303 are monitored for second stage
Waveform diagram.Wherein, Figure 17 light intensity between typical two hot spots that overlap has certain gap, to occur
It is not gentle unimodal shown in Figure 17；And Figure 18 is then that light intensity is similar between typical two hot spots that overlap, and
And spot center also relatively close to situation, therefore, the luminous intensity of overlapping region does not have relative to the intensity of respective spot center
It shows excessive decaying, also, has also appeared the small wave crest as shown in the intermediate region Figure 18 (between the wave crest of two sides).In
The testing result as shown in Figure 17 or 18 is obtained, can infer the case where two hot spot regional area overlappings have occurred.
By the above-mentioned elaboration for present invention extension implementation, it can be found that embodiment 2 is for the embodiment of the present invention
The necessity of realization can determine the general shape (as described in example 2 above) of hot spot by embodiment 2, and respective shapes
Confirmation then can specifically be applied to the confirmations of hot spot central axes in the present embodiment, for finally obtaining accurate judgement
As a result most important.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of high-resolution optical information networks method, which is characterized in that use high-resolution optical information networks device, the height
Resolution ratio optical information networks device includes optical input port (1), collimation lens (2), grating (3), condenser lens (4), photoelectricity spy
It surveys device array (5), servo motor (6), motor driving controling circuit (7) and data processing circuit (8), it is characterised in that: described
Photodetector array (5) is fixed on the servo motor (6) of achievable high-precision rotary, the shaft of the servo motor (6)
It is vertical with the photodetector array (5), and the optical axis coincidence with the grating (3) light splitting rear center's wavelength, the servo
Motor (6) rotationally and/or translationally, can make the photodetector array relative to grating (3) light splitting direction hair around own torque
Raw rotation and/or translation；Wherein, the signal output port of the photodetector array (5) also with the data processing circuit
(8) it connects；The servo motor (6) connects the motor driving controling circuit (7)；Also, the motor driving controling circuit
(7) data processing circuit (8) are also connected with, for obtain data processing circuit (8) transmission for the servo motor (6)
Driving instruction, then monitoring method include:
On the initial position of the photodetector array (5), first is collected by the photodetector array (5)
Imaging spectral, first imaging spectral pass to the data processing circuit (8) by the photodetector array (5)；
Data processing circuit (8) the Xiang Suoshu motor driving controling circuit (7) sends driving instruction, the drive and control of electric machine
Circuit (7) controls the rotation that the servo motor (6) completes preset n-1 rotational angle, so as to the data processing circuit
(8) collected the second to the n-th imaging spectral of photodetector array is obtained；
The n imaging spectral is substituted into the first calculation expression by the data processing circuit (8), completes the pixel of spectrum picture
The calculating of reading value；
First calculation expression, specifically:
,
Wherein,Indicate the spectrum reading value of j-th of pixel of n-th of spectrum, K be rotate covered on the latter CCD pixel to
The number of regions of spectrum is sought,Indicate that the reading value of i-th of pixel of spectrum picture to be asked, the spectrum one to be asked are shared
A pixel,It indicatesIt falls inOn part account forRatio, above equation altogether can arrangeIt is a；
It seeks aboveThe equation group of a equation composition, can be in the hope of high-resolution spectroscopy imageA pixel is read
Numerical value。
2. high-resolution optical information networks method according to claim 1, which is characterized in that the angle rotational angle θ meets every
After primary rotation, the size of less than the one pixel point of rotation distance on photodetector side.
3. high-resolution optical information networks method according to claim 2, which is characterized in that the rotational angle θ also
It is related with the required precision of monitoring, wherein the number of the higher rotation of the precision of monitoring is more.
4. high-resolution optical information networks method according to claim 1 to 3, which is characterized in that the data processing
Circuit (8) analyzes the frequency distribution of spectrum under the first stage according to the calculated result of the pixel reading value of the spectrum picture,
And distributing position and spot size of each hot spot in photodetector array (5), the monitoring method in spectrum further include:
The data processing circuit (8) be each hot spot determine one with wherein axial line distance less than one of preset threshold or
Multiple second stage monitor pixel；Wherein, the central axes are parallel with the direction that servo motor (6) translates；
Data processing circuit (8) the Xiang Suoshu motor driving controling circuit (7) sends control instruction, so as to the motor driven
Control circuit (7) drives the servo motor (6) to complete respectively to monitor pixel with corresponding second stage for each hot spot
Translation, wherein the translation include hot spot by be irradiated to corresponding second stage monitoring pixel side state gradually
Move to the state for being irradiated to the other side of corresponding second stage monitoring pixel；
The data processing circuit (8) monitors the continuous light intensity waveform that pixel returns according to each second stage, determines the first stage
Hot spot involved in the frequency distribution of lower spectrum partly overlaps and the hot spot that is not effectively recognized.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788340A (en) * | 2010-03-24 | 2010-07-28 | 上海交通大学 | Wavelength scanning device |
| CN102967365A (en) * | 2012-10-08 | 2013-03-13 | 上海交通大学 | Method and system for expanding spectral measurement range of spectrograph |
| CN103411674A (en) * | 2013-07-08 | 2013-11-27 | 杭州久傲科技有限公司 | Micro fiber spectrometer based oncortex-M3 |
| CN105021125A (en) * | 2015-06-11 | 2015-11-04 | 北京控制工程研究所 | A moving platform position measurement system and a measurement method based on a linear array CCD |
| CN105119142A (en) * | 2015-10-09 | 2015-12-02 | 深圳力策科技有限公司 | External cavity tuning laser |
| CN106330360A (en) * | 2016-08-30 | 2017-01-11 | 武汉光迅科技股份有限公司 | Optical channel detection device and method thereof |
| CN106534636A (en) * | 2016-11-10 | 2017-03-22 | 南京理工大学 | Rotary scanning imaging system device for linear array CCD (Charge Coupled Device) camera |
-
2018
- 2018-04-17 CN CN201810344109.5A patent/CN108760244B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788340A (en) * | 2010-03-24 | 2010-07-28 | 上海交通大学 | Wavelength scanning device |
| CN102967365A (en) * | 2012-10-08 | 2013-03-13 | 上海交通大学 | Method and system for expanding spectral measurement range of spectrograph |
| CN103411674A (en) * | 2013-07-08 | 2013-11-27 | 杭州久傲科技有限公司 | Micro fiber spectrometer based oncortex-M3 |
| CN105021125A (en) * | 2015-06-11 | 2015-11-04 | 北京控制工程研究所 | A moving platform position measurement system and a measurement method based on a linear array CCD |
| CN105119142A (en) * | 2015-10-09 | 2015-12-02 | 深圳力策科技有限公司 | External cavity tuning laser |
| CN106330360A (en) * | 2016-08-30 | 2017-01-11 | 武汉光迅科技股份有限公司 | Optical channel detection device and method thereof |
| CN106534636A (en) * | 2016-11-10 | 2017-03-22 | 南京理工大学 | Rotary scanning imaging system device for linear array CCD (Charge Coupled Device) camera |
Non-Patent Citations (1)
| Title |
|---|
| "超窄带宽可调光滤波器的研究";夏源 等;《激光技术》;20130731;第37卷(第4期);第493-497页 * |
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