CN112882224B - Wavefront control method - Google Patents
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Abstract
The invention relates to a wave front control method, belonging to the wave front distortion correction technical field, grouping drivers of a deformable mirror at least twice, grouping the next time based on the grouping of the previous time, applying the same voltage to the drivers in the same group, using the control voltage vector of an equivalent driver obtained after grouping as an iteration control target, utilizing a random algorithm wave front control method based on a far-field focal spot to carry out iteration control, converging to obtain a control voltage, carrying out the iteration control of the next time based on the control voltage of the previous time until the number of the drivers in the same group is 1 to obtain a final control voltage, reducing the number of the equivalent drivers by grouping the drivers of the deformable mirror, being capable of obviously reducing the iteration number of the random algorithm wave front closed-loop control, thereby improving the convergence speed of the wave front closed-loop control, and simultaneously, by grouping for many times, the number of the small groups is increased continuously, the number of the drivers in the same group is reduced continuously until the number of the drivers is changed to 1, and the final control voltage is obtained.
Description
Technical Field
The invention belongs to the technical field of wavefront distortion correction, and particularly relates to a wavefront control method.
Background
Since wavefront distortion seriously affects laser beam quality, wavefront control techniques are widely used in order to eliminate wavefront distortion. In order to reduce the complexity of the optical path, many wavefront control methods use a focal spot detector instead of a wavefront sensor, and perform closed-loop control on the far-field focal spot directly by using various random algorithms such as a random parallel gradient descent algorithm, a simulated annealing algorithm, a genetic algorithm, etc. to achieve the effect of optimizing the beam quality (e.g., "Comparison of several random parallel optimization control algorithms of adaptive Optics system," strong Laser and particle beam ", volume 20, pages 11-16, 2008; and" Optics of mechanical parallel optimization algorithms for adaptive Optics systems system with a wave front sensor ", Optics & Laser Technology, vol.43, pp.630-635,2011"). Although the existing wavefront control technology based on the far-field focal spot and utilizing the random algorithm has a good correction effect on wavefront distortion, the problem of low convergence speed is obvious, and therefore a great improvement space is provided in the aspect of wavefront closed-loop control convergence speed.
Disclosure of Invention
In order to solve the above problems, a wavefront control method is proposed, which can significantly improve the convergence rate of wavefront closed-loop control without changing hardware conditions, compared to the existing wavefront control technology based on a random algorithm of a far-field focal spot.
In order to achieve the purpose, the invention provides the following technical scheme:
the drivers of the deformable mirror are grouped at least twice, the next grouping is carried out based on the previous grouping, the same voltage is applied to the drivers in the same group, the control voltage vector of the equivalent driver obtained after the grouping is used as an iteration control target, iteration control is carried out by using a random algorithm wave front control method based on a far-field focal spot, the control voltage is obtained through convergence, the next iteration control is carried out based on the control voltage of the previous grouping until the number of the drivers in the same group is 1, and the final control voltage is obtained.
Further, the method comprises the following steps:
step S1, performing primary grouping on drivers of the deformable mirror to obtain primary equivalent drivers, applying the same voltage to the drivers in the same group, measuring the far-field focal spot of the light beam by using a focal spot detector, using the control voltage vector of the primary equivalent driver as an iteration control target, performing iteration control by using a random algorithm wave front control method based on the far-field focal spot, and converging to obtain primary control voltage;
step S2, performing secondary grouping on the drivers in the same group after the primary grouping to obtain a secondary equivalent driver, applying a primary control voltage corresponding to the secondary equivalent driver (namely on the basis of the primary control voltage), applying the same voltage on the drivers in the same group, measuring a far-field focal spot of a light beam by using a focal spot detector, taking a control voltage vector of the secondary equivalent driver as an iterative control target, performing iterative control by using a random algorithm wave-front control method based on the far-field focal spot, and converging to obtain a secondary control voltage;
and S3, repeating the step S2 until the number of the drivers in the same group is 1, and obtaining the final control voltage.
Further, in step S1, the number of drivers of the deformable mirror is set to n, and the drivers are grouped for the first time to obtain m subgroups, where m subgroups are regarded as m first-time equivalent drivers, and 1<m<n, applying the same voltage to the drivers in the same group, and converting the control voltage vector V of the first equivalent driver1＝(V11,V12,...,V1m) As an iteration control target, convergeObtaining a primary control voltage V1'＝(V11',V12',...,V1m'). Since m is significantly smaller than n, it is possible to converge to the primary control voltage more quickly.
Further, in step S2, the drivers in the m subgroups are all grouped twice to obtain p subgroups, and m is<p is less than or equal to n, p small groups are regarded as p secondary equivalent drivers, primary control voltages corresponding to the p secondary equivalent drivers are respectively applied to the p secondary equivalent drivers, the same voltage is applied to the drivers in the same group, and control voltage vectors V of the secondary equivalent drivers are converted into control voltage vectors V2＝(V21,V22,...,V2p) As an iteration control target, converging to obtain a secondary control voltage V2'＝(V21',V22',...,V2p'). Although p is increased compared with m, the secondary control voltage can be converged quickly on the premise of the action of the primary control voltage.
Specifically, a certain secondary equivalent driver is set as a secondary equivalent driver a, the secondary equivalent driver a is determined to be located in the group a after the primary grouping, and then the primary control voltage corresponding to the group a is determined and applied to the secondary equivalent driver a.
Further, in step S3, when the number of subgroups obtained after grouping is equal to n, the number of drivers in the same group is 1, and the final control voltage is obtained. That is, by grouping multiple times, the number of subgroups is gradually increased and the number of drivers in the same group is correspondingly decreased until there is only one driver in the same group.
Further, according to the space distribution characteristics of the deformable mirror drivers, the drivers are grouped through the controller, the same voltage is applied to the drivers in the same group, the deformable mirror is in a working mode that the number of the equivalent drivers after the drivers are grouped changes, and the control voltage of the deformable mirror drivers is subjected to optimized iterative control in multiple steps.
Further, a plurality of drivers adjacent to each other form a small group, and the plurality of drivers are 1 or more.
Further, different sets of drivers may apply the same voltage.
Further, different sets of drivers may apply different voltages.
Further, the number of drives in different groups may be different.
Further, the beam incidence is to the closed loop optical system who comprises beam splitter, deformable mirror, speculum, focal spot detector and controller, the beam splitter slope sets up, and the beam splitter sets up with the deformable mirror with the optical axis, and the light beam transmits to deformable mirror after the beam splitter, and the light beam that returns through deformable mirror is divided into sample light beam and output beam behind the beam splitter, speculum and focal spot detector set up with the optical axis, and speculum and beam splitter correspond the setting, and sample light beam incides to speculum and focal spot detector in proper order, the controller is connected with focal spot detector, deformable mirror electricity respectively.
The invention has the beneficial effects that:
compared with the prior wave front control technology, the number of equivalent drivers is reduced by grouping the drivers of the deformable mirror, the iteration times of the wave front closed-loop control of the random algorithm can be obviously reduced, so that the convergence speed of the wave front closed-loop control is improved, meanwhile, the number of the groups is continuously increased by grouping for many times, the number of the drivers in the same group is continuously reduced until the number of the drivers in the same group is changed into 1, and the final control voltage is obtained.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the primary control voltage according to the third embodiment;
FIG. 3 shows the third embodiment without applying the preliminary control voltage V1' front far field focal spot schematic;
FIG. 4 shows the application of the preliminary control voltage V in the third embodiment1' rear far field focal spot diagram;
FIG. 5 is a schematic diagram of the secondary control voltage in the third embodiment;
FIG. 6 shows the application of the secondary control voltage V in the third embodiment1' rear far field focal spot diagram;
FIG. 7 is a diagram illustrating the final control voltage in the third embodiment;
fig. 8 is a schematic diagram of the far field focal spot after the final control voltage is applied in the third embodiment.
In the drawings: the device comprises a 1-light beam, a 2-light splitting sheet, a 3-deformable mirror, a 4-reflector, a 5-lens, a 6-focal spot detector, a 7-controller and an 8-output light beam.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.
The first embodiment is as follows:
a wavefront control method, which, in effect, involves a random algorithmic wavefront control method based on far-field focal spots. In order to improve the convergence speed of the wavefront closed-loop control, the drivers of the deformable mirror are grouped at least twice, the next grouping is carried out based on the previous grouping, the same voltage is applied to the drivers in the same group, the control voltage vector of the equivalent driver obtained after the grouping is used as an iteration control target, iteration control is carried out by using a random algorithm wavefront control method based on a far-field focal spot, the control voltage is obtained through convergence, the next iteration control is carried out based on the control voltage of the previous time until the number of the drivers in the same group is 1, and the final control voltage is obtained.
Specifically, the transmission path of light beam is as shown in fig. 1, and light beam 1 incides to the closed loop optical system who comprises beam splitter 2, deformable mirror 3, speculum 4, focal spot detector 6 and controller 7, 2 slope settings on beam splitter, and beam splitter 2 and deformable mirror 3 are with the optical axis setting, and light beam 1 transmits to deformable mirror 3 behind beam splitter 2, and the light beam that reflects back through deformable mirror 3 divide into sample light beam and output beam 8 behind beam splitter 2, speculum 4 and focal spot detector 6 are with the optical axis setting, and speculum 4 corresponds the setting with beam splitter 2, and sample light beam incides to speculum 4, lens 5 and focal spot detector 6 in proper order, controller 7 is connected with focal spot detector 6, deformable mirror 3 electricity respectively.
The wavefront control method includes the steps of:
step S1, the drivers of the deformable mirror 3 are grouped for the first time to obtain a primary equivalent driver, the same voltage is applied to the drivers in the same group, the focal spot detector 6 is used for measuring the far-field focal spot of the light beam, the control voltage vector of the primary equivalent driver is used as an iterative control target, iterative control is carried out by using a random algorithm wave front control method based on the far-field focal spot, and the primary control voltage is obtained through convergence.
The random algorithm comprises a random parallel gradient descent algorithm, a simulated annealing algorithm, a genetic algorithm and the like, the wavefront control method of the random algorithm based on the far-field focal spot belongs to the mature prior art, the iterative control method can refer to the comparison of several random parallel optimization control algorithms of an adaptive optics system, and meanwhile, the creativity of the invention is not in the improvement of the existing random algorithm, so that the detailed iterative control process is not repeated.
And step S2, performing secondary grouping on the drivers in the same group after the primary grouping to obtain a secondary equivalent driver, applying a primary control voltage corresponding to the secondary equivalent driver (namely on the basis of the primary control voltage), applying the same voltage on the drivers in the same group, measuring the far-field focal spot of the light beam by using the focal spot detector 6, taking the control voltage vector of the secondary equivalent driver as an iterative control target, performing iterative control by using a random algorithm wave-front control method based on the far-field focal spot, and converging to obtain a secondary control voltage.
And S3, repeating the step S2 until the number of the drivers in the same group is 1, and obtaining the final control voltage.
According to the space distribution characteristics of the drivers of the deformable mirror 3, the drivers are grouped through the controller 7, the same voltage is applied to the drivers in the same group, so that the deformable mirror 3 is in a working mode that the number of the equivalent drivers after the drivers are grouped is changed, and the control voltage of the deformable mirror driver is subjected to optimized iterative control in multiple steps. In the grouping process, a plurality of adjacent drivers form a small group, and the plurality of drivers are more than or equal to 1. In addition, different groups of drivers may apply the same or different voltages, and the number of drivers in different groups may be different. That is, the voltages applied by the drivers of different groups and the number of drivers in different groups are not strictly required.
Example two:
parts of this embodiment that are the same as those of the first embodiment are not described again, except that:
firstly, the number of drivers of the deformable mirror is set as n, the drivers are grouped for the first time to obtain m small groups, the m small groups are regarded as m first-time equivalent drivers, and 1<m<n, applying the same voltage to the drivers in the same group, and converting the control voltage vector V of the first equivalent driver1＝(V11,V12,...,V1m) As an iteration control target, converging to obtain a primary control voltage V1'＝(V11',V12',...,V1m'). Since m is significantly smaller than n, it is possible to converge to the primary control voltage more quickly.
Secondly, the drivers in m subgroups are grouped twice to obtain p subgroups, and m<p is less than or equal to n, p small groups are regarded as p secondary equivalent drivers, primary control voltages corresponding to the p secondary equivalent drivers are respectively applied to the p secondary equivalent drivers, the same voltage is applied to the drivers in the same group, and control voltage vectors V of the secondary equivalent drivers are converted into control voltage vectors V2＝(V21,V22,...,V2p) As an iteration control target, converging to obtain a secondary control voltage V2'＝(V21',V22',...,V2p'). Although p is increased compared with m, the secondary control voltage can be converged quickly on the premise of the action of the primary control voltage.
And finally, when the number of the groups obtained after grouping is equal to n, the number of the drivers in the same group is 1, and the final control voltage is obtained. That is, by grouping multiple times, the number of subgroups is gradually increased and the number of drivers in the same group is correspondingly decreased until there is only one driver in the same group.
Example three:
parts of this embodiment that are the same as the embodiment are not described again, except that:
the wavelength of the light beam 1 is 1053nm, the aperture of the light beam 1 is 40mm multiplied by 40mm, the aperture of the light splitting sheet 2 is 60mm multiplied by 60mm, the splitting ratio is 1:1, the main technical parameters of the deformable mirror 3 are shown in table 1, the aperture of the reflector 4 is 60mm multiplied by 60mm, the aperture of the lens 5 is 100mm, the focal length of the lens 5 is 1500mm, and the main technical parameters of the focal spot detector 6 are shown in table 2.
TABLE 1 Primary technical parameters of anamorphic mirrors
TABLE 2 main technical parameters of the focal spot detector
The specific wavefront control process is as follows:
firstly, according to the spatial distribution characteristics of deformable mirror drivers, 64 drivers are grouped for the first time to form 4 groups, the 4 groups are regarded as 4 primary equivalent drivers, each group is provided with 16 drivers after grouping, the driver voltage in each group is set to be the same, closed-loop iterative control is carried out on the 4 primary equivalent drivers by utilizing a random algorithm wavefront control technology based on far-field focal spots, and primary control voltage V is obtained1', as shown in FIG. 2. Without applying the preliminary control voltage V1' i.e. wavefront closed-loop correction) the far-field focal spot is shown in fig. 3, with a preliminary control voltage V applied1The far field focal spot after' (i.e., wavefront closed loop correction) is shown in fig. 4.
Secondly, 16 drivers in each subgroup after the initial groupingThe device is further divided into 4 groups, namely drivers in 4 groups formed by primary grouping are grouped for the second time to obtain 16 groups in total, the 16 groups are regarded as 16 secondary equivalent drivers, each group has 4 drivers after secondary grouping, the 16 secondary equivalent drivers are respectively applied with primary control voltages corresponding to the primary control voltages, the drivers in the same group are applied with the same voltage, random algorithm wavefront closed loop iterative control is continuously carried out, and secondary control voltages V are obtained through convergence2' As shown in FIG. 5, a secondary control voltage V is applied1The far field focal spot after' (i.e., wavefront closed loop correction) is shown in fig. 6.
Thirdly, dividing 4 drivers in each group after secondary grouping into 4 groups, namely, dividing the drivers in 16 groups formed by secondary grouping into three groups, obtaining 64 groups in total, regarding the 64 groups as 64 triple equivalent drivers, wherein each group after the three groups has 1 driver, respectively applying secondary control voltages corresponding to the 64 triple equivalent drivers, continuously performing random algorithm wave-front closed loop iterative control to obtain final control voltages, and obtaining far-field focal spots after the final control voltages (namely wave-front closed loop correction) are applied as shown in fig. 8.
In summary, by gradually grouping the deformable mirror drivers and gradually performing the wavefront closed-loop control of the random algorithm, the driver control voltage is gradually updated and the final control voltage is obtained as the number of driver groups increases and the number of drivers in each group decreases in the driver grouping process.
The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Claims (8)
1. A wave front control method is characterized in that drivers of a deformable mirror are grouped at least twice, the next grouping is carried out based on the previous grouping, the same voltage is applied to the drivers in the same group, a control voltage vector of an equivalent driver obtained after the grouping is used as an iteration control target, iteration control is carried out by a random algorithm wave front control method based on a far-field focal spot, convergence is carried out to obtain a control voltage, the next iteration control is carried out based on the previous control voltage until the number of the drivers in the same group is 1, and a final control voltage is obtained.
2. A wavefront control method according to claim 1, characterized by the steps of:
step S1, performing primary grouping on drivers of the deformable mirror to obtain primary equivalent drivers, applying the same voltage to the drivers in the same group, measuring the far-field focal spot of the light beam by using a focal spot detector, using the control voltage vector of the primary equivalent driver as an iteration control target, performing iteration control by using a random algorithm wave front control method based on the far-field focal spot, and converging to obtain primary control voltage;
step S2, performing secondary grouping on the drivers in the same group after the primary grouping to obtain a secondary equivalent driver, applying a primary control voltage corresponding to the secondary equivalent driver, applying the same voltage on the drivers in the same group, measuring a far-field focal spot of a light beam by using a focal spot detector, taking a control voltage vector of the secondary equivalent driver as an iterative control target, performing iterative control by using a random algorithm wave-front control method based on the far-field focal spot, and converging to obtain a secondary control voltage;
and S3, repeating the step S2 until the number of the drivers in the same group is 1, and obtaining the final control voltage.
3. The method according to claim 2, wherein in step S1, the number of drivers of the deformable mirror is set to n, the drivers are grouped for the first time to obtain m subgroups, the m subgroups are regarded as m first-time equivalent drivers, and 1<m<n, applying the same voltage to the drivers in the same group, and converting the control voltage vector V of the first equivalent driver1＝(V11,V12,...,V1m) As an iteration control target, converging to obtain a primary control voltage V1'＝(V11',V12',...,V1m') due tom is significantly smaller than n, and therefore, the initial control voltage can be converged faster.
4. The method according to claim 3, wherein in step S2, the drivers in m subgroups are grouped twice to obtain p subgroups, and m is<p is less than or equal to n, p small groups are regarded as p secondary equivalent drivers, primary control voltages corresponding to the p secondary equivalent drivers are respectively applied to the p secondary equivalent drivers, the same voltage is applied to the drivers in the same group, and the control voltage vector V of the secondary equivalent drivers is converted into a control voltage vector V on the basis of the primary control voltage2＝(V21,V22,...,V2p) As an iteration control target, converging to obtain a secondary control voltage V2'＝(V21',V22',...,V2p') although p is increased compared to m, it can converge to the secondary control voltage faster on the premise that the primary control voltage is applied.
5. The method according to claim 4, wherein in step S3, when the number of subgroups obtained after grouping is equal to n, the number of drivers in the same group is 1, and the final control voltage is obtained.
6. A wavefront control method according to any of claims 1-5, characterized in that the drivers are grouped by the controller according to the spatial distribution characteristics of the anamorphic mirror drivers and the same voltage is applied to the drivers in the same group.
7. The method of claim 6, wherein a plurality of drivers are grouped into a group, and wherein the plurality of drivers is greater than or equal to 1.
8. The method according to claim 7, wherein the light beam is incident on a closed-loop optical system including a splitter, a deformable mirror, a reflector, a focal spot detector, and a controller, the splitter is disposed obliquely, the splitter and the deformable mirror are disposed on the same optical axis, the light beam is transmitted to the deformable mirror after passing through the splitter, the light beam reflected by the deformable mirror is divided into a sampling light beam and an output light beam after passing through the splitter, the reflector and the focal spot detector are disposed on the same optical axis, the reflector and the splitter are disposed correspondingly, the sampling light beam is incident on the reflector and the focal spot detector in sequence, and the controller is electrically connected to the focal spot detector and the deformable mirror, respectively.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016997A (en) * | 1990-05-15 | 1991-05-21 | The United States Of America As Represented By The United States Department Of Energy | Partially segmented deformable mirror |
| EP0546811A1 (en) * | 1991-12-10 | 1993-06-16 | Hughes Aircraft Company | Simple adaptive optical system |
| CN1673819A (en) * | 2004-02-17 | 2005-09-28 | 夏普株式会社 | Image display apparatus |
| WO2005124425A2 (en) * | 2004-06-22 | 2005-12-29 | Bae Systems Plc | Improvements relating to deformable mirrors |
| CN101266334A (en) * | 2008-05-07 | 2008-09-17 | 北京理工大学 | Wavefront-free detector self-adapting optical system based on random paralleling gradient descent algorithm |
| EP2015125A1 (en) * | 2007-07-09 | 2009-01-14 | BAE Systems plc | Optically controlled deformable mirror |
| CN101546037A (en) * | 2009-05-05 | 2009-09-30 | 长春理工大学 | Model-free wavefront distortion correcting system based on spatial light modulator |
| CN101783105A (en) * | 2010-02-22 | 2010-07-21 | 中国科学院苏州纳米技术与纳米仿生研究所 | Drive circuit of spatial light modulator and operating method thereof |
| CN102494785A (en) * | 2011-10-21 | 2012-06-13 | 中国科学院光电技术研究所 | Adaptive optical system transfer matrix measuring device and method based on Hadamard matrix multi-channel method |
| CN103399401A (en) * | 2013-07-15 | 2013-11-20 | 北京理工大学 | Wavefront error correction system and method for inhibiting speckle noises of coronagraph system |
| CN103901617A (en) * | 2014-04-17 | 2014-07-02 | 淮海工学院 | Wavefront detection-free adaptive optical system based on model |
| CN105223688A (en) * | 2015-11-05 | 2016-01-06 | 中国工程物理研究院激光聚变研究中心 | A kind of laser beam wave-front correction system and method |
| CN108646407A (en) * | 2018-05-08 | 2018-10-12 | 宜宾学院 | A kind of no wavefront perception self-adaption optical imaging system and its imaging method |
| CN109633891A (en) * | 2019-01-16 | 2019-04-16 | 中国工程物理研究院激光聚变研究中心 | A kind of wavefront control method |
| CN109683306A (en) * | 2019-01-31 | 2019-04-26 | 中国工程物理研究院激光聚变研究中心 | It is a kind of for overcoming the wavefront control method of thermal lensing effect |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030107137A1 (en) * | 2001-09-24 | 2003-06-12 | Stierman Roger J. | Micromechanical device contact terminals free of particle generation |
| EP3879334B1 (en) * | 2014-07-31 | 2023-11-29 | Mtt Innovation Incorporated | Numerical approaches for free-form lensing: area parameterization free-form lensing |
-
2021
- 2021-01-19 CN CN202110066489.2A patent/CN112882224B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016997A (en) * | 1990-05-15 | 1991-05-21 | The United States Of America As Represented By The United States Department Of Energy | Partially segmented deformable mirror |
| EP0546811A1 (en) * | 1991-12-10 | 1993-06-16 | Hughes Aircraft Company | Simple adaptive optical system |
| CN1673819A (en) * | 2004-02-17 | 2005-09-28 | 夏普株式会社 | Image display apparatus |
| WO2005124425A2 (en) * | 2004-06-22 | 2005-12-29 | Bae Systems Plc | Improvements relating to deformable mirrors |
| EP2015125A1 (en) * | 2007-07-09 | 2009-01-14 | BAE Systems plc | Optically controlled deformable mirror |
| CN101266334A (en) * | 2008-05-07 | 2008-09-17 | 北京理工大学 | Wavefront-free detector self-adapting optical system based on random paralleling gradient descent algorithm |
| CN101546037A (en) * | 2009-05-05 | 2009-09-30 | 长春理工大学 | Model-free wavefront distortion correcting system based on spatial light modulator |
| CN101783105A (en) * | 2010-02-22 | 2010-07-21 | 中国科学院苏州纳米技术与纳米仿生研究所 | Drive circuit of spatial light modulator and operating method thereof |
| CN102494785A (en) * | 2011-10-21 | 2012-06-13 | 中国科学院光电技术研究所 | Adaptive optical system transfer matrix measuring device and method based on Hadamard matrix multi-channel method |
| CN103399401A (en) * | 2013-07-15 | 2013-11-20 | 北京理工大学 | Wavefront error correction system and method for inhibiting speckle noises of coronagraph system |
| CN103901617A (en) * | 2014-04-17 | 2014-07-02 | 淮海工学院 | Wavefront detection-free adaptive optical system based on model |
| CN105223688A (en) * | 2015-11-05 | 2016-01-06 | 中国工程物理研究院激光聚变研究中心 | A kind of laser beam wave-front correction system and method |
| CN108646407A (en) * | 2018-05-08 | 2018-10-12 | 宜宾学院 | A kind of no wavefront perception self-adaption optical imaging system and its imaging method |
| CN109633891A (en) * | 2019-01-16 | 2019-04-16 | 中国工程物理研究院激光聚变研究中心 | A kind of wavefront control method |
| CN109683306A (en) * | 2019-01-31 | 2019-04-26 | 中国工程物理研究院激光聚变研究中心 | It is a kind of for overcoming the wavefront control method of thermal lensing effect |
Non-Patent Citations (3)
| Title |
|---|
| Design and Implementation of SCM and SSD based Hybrid Key-Value Store;Ling Zhan;《The 2019 International Conference on Artificial Intelligence and Computer Scienc》;20190712;565-572 * |
| 激光大气水平传输湍流畸变波前的功率谱分析I:波前整体倾斜与泰勒频率;李新阳;《光学学报》;20000731;第20卷(第7期);882-889 * |
| 高功率固体激光系统中激光空间强度与波前控制技术研究;李森森;《中国博士学位论文全文库》;20170228;I135-42 * |
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