CN111505842A - Passive optical sensitive device for improving laser power stability and implementation and test method thereof - Google Patents
Passive optical sensitive device for improving laser power stability and implementation and test method thereof Download PDFInfo
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- CN111505842A CN111505842A CN202010363872.XA CN202010363872A CN111505842A CN 111505842 A CN111505842 A CN 111505842A CN 202010363872 A CN202010363872 A CN 202010363872A CN 111505842 A CN111505842 A CN 111505842A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 7
- 238000010998 test method Methods 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims abstract description 35
- 230000008859 change Effects 0.000 claims abstract description 8
- 230000005012 migration Effects 0.000 claims abstract description 3
- 238000013508 migration Methods 0.000 claims abstract description 3
- 238000002310 reflectometry Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 25
- 230000000087 stabilizing effect Effects 0.000 claims description 21
- 238000002834 transmittance Methods 0.000 claims description 20
- 150000002500 ions Chemical class 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 claims description 9
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 8
- 229940096017 silver fluoride Drugs 0.000 claims description 8
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 8
- REYHXKZHIMGNSE-UHFFFAOYSA-M silver monofluoride Chemical compound [F-].[Ag+] REYHXKZHIMGNSE-UHFFFAOYSA-M 0.000 claims description 8
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 claims description 6
- 229910021612 Silver iodide Inorganic materials 0.000 claims description 6
- 229940045105 silver iodide Drugs 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 230000006872 improvement Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 description 7
- 238000011105 stabilization Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
Abstract
The invention relates to a passive photosensitive device for improving laser power stability, which is characterized in that: the laser stable power passive photosensitive lens has photosensitive property and controls laser power, and the laser stable power passive photosensitive lens structure is characterized in that a photosensitive molecular material is arranged between two lenses with different reflectivity as a dielectric layer, when laser irradiates the photosensitive molecular material, a current carrier can be excited to enter a conduction band or a valence band of the photosensitive molecular material, so that the migration of the current carrier is realized, the laser stable power passive photosensitive lens generates refractive index change corresponding to incident light space distribution, and when the laser moves to a dark space or the laser does not continue to work, the refractive index is recovered. The scheme is a passive optical sensitive device which has simple design and low cost, does not need a driving source and is suitable for large-range power.
Description
Technical Field
The invention belongs to the technical field of laser stabilization, and relates to a device for improving laser power stability by using a passive photosensitive lens for laser power stabilization, and an implementation and test method thereof.
Background
The power stability of the laser is extremely important in a plurality of scientific research and industrial fields, and the high-stability laser can widen huge application market prospect and can be widely applied to the fields of high-precision spectrums, laser radars, laser ranging and the like.
The main factors influencing the stability of the laser include the gain coefficient in the laser cavity, the loss coefficient in the laser cavity, the stability of the driving current of the laser tube, the intensity outside the laser cavity, the magnetic field and the like. In the existing technology for improving the stability of laser power, the technology for stabilizing the driving current of a laser tube and the temperature of the environment in a cavity is a common internal power stabilizing technology; in addition, the external power stabilization techniques include an acousto-optic modulation method, a liquid crystal phase method, an electro-optic modulation method, and the like, and for example, the method based on acousto-optic modulation utilizes an acousto-optic effect: when light passes through the crystal, the refractive index of the crystal can be changed, part of the output light of the crystal is fed back to the feedback loop to control the acousto-optic driver, and the change of the refractive index of the acousto-optic crystal can change the direction, power and frequency of diffracted laser, so that the fluctuation of the stable laser power is reduced; however, the optical damage threshold of acousto-optic modulation is low, so that the acousto-optic modulation is not suitable for stable power output in a large-range power, and the active driving device is complex and has relatively high cost. In the power stabilizing method for liquid crystal phase control developed in recent years, the polarization of light emitted is changed by changing the liquid crystal direction through loading voltage, and the laser power is stabilized by combining with the polarization detection.
Disclosure of Invention
In order to solve the problems in the prior laser power stabilization technology, the invention provides a passive device and a method for stabilizing laser power, which have the advantages of simple design, low cost, no need of a driving source and suitability for large-range power, for the first time internationally.
The invention mainly utilizes a laser power stabilizing passive photosensitive lens with photosensitive property to control the laser power, and the structure of the invention is mainly that a photosensitive molecular material is arranged between two lenses with different reflectivity as a medium layer, when laser irradiates the photosensitive material, a current carrier is excited to enter a conduction band or a valence band of the material, so as to realize the migration of the current carrier, thus the laser power stabilizing passive photosensitive lens generates the refractive index change corresponding to the incident light space distribution, and when the laser is moved to a dark space or the laser does not work any more, the refractive index is recovered. The effect is that the transmittance is low when the laser power is high, and the transmittance is high when the laser power is low, so that the power fluctuation of the laser is stabilized within a certain limit to achieve the purpose of stabilizing the laser power. The laser stable power passive photosensitive lens is a photochromic lens, and photosensitive substances are doped in the lens, such as: photosensitive compositions such as silver iodide, silver bromide, silver chloride or silver fluoride.
The photochromic lens turns grey or brown under the irradiation of laser in a specific wave band range, and if the laser is removed, the photosensitive material in the lens can restore the glass to a near colorless and more transparent state from the grey or brown.
The invention provides a passive photosensitive lens for improving laser power stability, which needs a laser, an attenuation sheet, a laser power-stabilizing passive photosensitive lens and a detector in a specific test, and comprises the following operation steps:
1) blocking the output light of the laser in a non-illumination environment;
2) removing the shelter, outputting light from the laser, adjusting the laser power through the attenuation sheet, and then exciting photosensitive substances in the laser power-stabilizing passive photosensitive lens to separate ions;
3) the ions have different transmittances to the laser with different powers, so that the aim of stabilizing the laser power is fulfilled.
Fig. 1 is a schematic structural diagram of stabilized laser power according to an embodiment of the present invention, fig. 2 is a transmittance of a laser stabilized passive photosensitive lens under different laser powers, fig. 3 is a transmittance and a linear fitting curve of the laser stabilized passive photosensitive lens under different laser powers, and experimental results show that the transmittance of the laser stabilized passive photosensitive lens is linearly changed with the input laser power, and the output power can be approximately expressed as
Pout＝S×Pin+I (1)
Wherein the laser input power is PinLaser output power of PoutS is the slope of the linear fitting curve, and I is the intercept of the linear fitting curve;
the output power with power fluctuation is expressed as:
P'out＝S×(Pin+)+I (2)
wherein input power fluctuations are present;
the relative power fluctuation across the laser stabilized passive photosensitive mirror can be expressed as
The ratio of the output power fluctuation to the input power fluctuation can be defined as a power stability factor expressed by
It can be seen from the formula that the ratio of the relative output power fluctuation to the input power fluctuation under the condition of constant input power depends on the slope constant S and the intercept constant I. From the formula, it can be seen that if the ratio of the output power fluctuation to the input power fluctuation is smaller, the larger the value of I is required, and the smaller the value of S is required. If the corresponding photosensitive material and the doping material are reasonably proportioned, the smaller the power stability coefficient is, the more remarkable the power stability effect is.
The laser stable power passive photosensitive lens is a photochromic lens, and the material of the laser stable power passive photosensitive lens can be organic photosensitive material or inorganic photosensitive material and the like; the doped ions of the passive device can be photosensitive compositions such as silver iodide, silver bromide, silver chloride or silver fluoride. The output light of the laser passes through the laser power-stabilizing passive photosensitive lens, and the photosensitive substance in the laser power-stabilizing passive photosensitive lens is excited to separate ions, which show different transmittances according to different laser powers, so that the effect of stabilizing the laser power is achieved.
The laser can be an X-ray laser, an ultraviolet laser, a visible light laser, an infrared laser and the like.
The laser stable power passive photosensitive lens can be an optical resin lens, a sunglass lens and other glass lenses which are prepared from photosensitive materials, and the photosensitive characteristics and the photosensitive response time of the laser stable power passive photosensitive lens are adjusted by the change and the proportion of the materials.
The doped photosensitive substance of the laser stable-power passive photosensitive lens can be photosensitive compounds such as silver bromide, silver chloride or silver fluoride.
The invention also provides a method for realizing the improvement of the laser stability of the laser power-stabilizing passive photosensitive lens, which comprises the following steps:
1) screening a proper passive photosensitive lens according to a laser with a specific wavelength;
2) adjusting different doping ion types and doping concentrations to minimize the power stability coefficient, including adjusting the photosensitive characteristics and photosensitive response time of the material by the change and proportion doping of the material;
3) the passive photosensitive lens with the best debugging effect is arranged in the required light path to improve the laser power stability.
The laser stable power passive photosensitive lens is a photochromic lens, and the material of the laser stable power passive photosensitive lens can be organic photosensitive material or inorganic photosensitive material; the doped ions of the passive device can be photosensitive compositions such as silver iodide, silver bromide, silver chloride or silver fluoride. The output light of the laser passes through the laser power-stabilizing passive photosensitive lens, and the photosensitive substance in the laser power-stabilizing passive photosensitive lens is excited to separate ions, which show different transmittances according to different laser powers, so that the effect of stabilizing the laser power is achieved.
The laser can be an X-ray laser, an ultraviolet laser, a visible light laser and an infrared laser.
The laser stable power passive photosensitive lens can be an optical resin lens, a sunglass lens and other glass lenses which are prepared from photosensitive materials.
The doped photosensitive substance of the laser stable-power passive photosensitive lens can be photosensitive compounds such as silver bromide, silver chloride or silver fluoride.
The invention has the beneficial effects that: the laser power is controlled by the laser power stabilizing passive photosensitive lens with photosensitive property, the transmittance of the laser power stabilizing passive photosensitive lens can be changed when laser passes through the laser power stabilizing passive photosensitive lens, the transmittance becomes low when the laser power is high, and the transmittance becomes high when the laser power is low, so that the power fluctuation of the laser is stabilized within a certain limit, and the purpose of stabilizing the laser power is achieved. Compared with the laser power stabilization methods such as the international existing acousto-optic modulation method, the liquid crystal phase method, the electro-optic modulation method and the like, the laser power stabilization method only utilizes the passive photosensitive lens to perform stability control on the laser power, does not have any additional driving source, and has the advantages of simple structure, convenience in use and low cost.
Drawings
FIG. 1 is a schematic diagram of a structure for stabilizing laser power according to an embodiment of the present invention;
FIG. 2 is a graph showing the transmittance of a laser stabilized passive photosensitive lens under different laser powers;
fig. 3 is a transmission power and linear fitting curve of the laser stabilized passive photosensitive lens under different laser powers. In the figure: 1-a laser; 2-an attenuation sheet; 3-laser power-stabilizing passive photosensitive lens; 4-detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1 to fig. 3, the present invention discloses a device for improving laser power stability by using a laser power-stabilizing passive photosensitive lens, and a method for implementing and testing the same, and referring to fig. 1, the laser power stabilizing apparatus includes: the device comprises a laser 1, an attenuation sheet 2, a laser stabilized power passive photosensitive lens 3 and a detector 4. The output light of the laser 1 passes through the attenuation sheet 2 to adjust the laser power, then the photosensitive substance in the laser power stabilizing passive photosensitive lens 3 is excited to separate ions, the ion density excited by the lasers with different powers is different, so that the transmittance of the laser power stabilizing passive photosensitive lens 3 is different, and the laser power plays a role in stabilizing the laser power under the action of the ions.
Fig. 2 is a transmittance of the laser stabilized passive photosensitive lens under different laser powers, and fig. 3 is a transmittance, a transmittance and a linear fitting curve of the laser stabilized passive photosensitive lens under different laser powers.
The invention designs a laser stability control device taking a photosensitive passive device as a core, and explains the composition and the working principle of the system in detail, and by analyzing the experimental data result of the figure 3, the device realizes the technical index of improving the laser power stability, and obtains technical breakthrough and method. Therefore, the device firstly proposes a new technology and a new method for effectively realizing the laser power stability by using the passive device internationally.
Referring to fig. 2 and 3, it can be seen that the transmittance of the laser stabilized passive photosensitive lens is linearly varied with the input laser power, and the output power can be approximately expressed as
Pout＝S×Pin+I (1)
Wherein the laser input power is PinLaser output power of PoutS is the slope of the linear fitting curve, and I is the intercept of the linear fitting curve;
the output power with power fluctuation is expressed as:
P'out＝S×(Pin+)+I (2)
wherein input power fluctuations are present;
the relative power fluctuation across the laser stabilized passive photosensitive mirror can be expressed as
The ratio of the output power fluctuation to the input power fluctuation can be defined as a power stability factor expressed by
It can be seen from the formula that the ratio of the relative output power fluctuation to the input power fluctuation under the condition of constant input power depends on the slope constant S and the intercept constant I. From the formula, it can be seen that if the ratio of the output power fluctuation to the input power fluctuation is smaller, the larger the value of I is required, and the smaller the value of S is required. If the corresponding photosensitive material and the doping material are reasonably proportioned, the smaller the power stability coefficient is, the more remarkable the power stability effect is.
The above-mentioned embodiments are only for illustrating the working principle of the present invention, and are not intended to limit the scope of the present invention. Specifically, the invention is suitable for the photosensitive characteristics of photosensitive compositions such as silver iodide, silver bromide, silver chloride or silver fluoride and the like to laser to realize the purpose of stabilizing the laser power, and is also suitable for other substances with photosensitive characteristics and capable of changing the laser power transmittance. For example, power stabilization of ultraviolet band, visible light, and infrared light can be achieved by using silver bromide molecules as the photosensitive substance. The photosensitive property and the photosensitive response time can be adjusted by the transformation of various photosensitive materials and the doping of the glass in proportion, and the photosensitive material can be specifically utilized to realize the invention, is well known by the technical personnel in the field, and therefore, the description is not repeated. It will be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Therefore, the protection scope of the present invention is subject to the limitation of the claims. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a passive photosensitive device of improvement laser power stability which characterized in that: the laser stable power passive photosensitive lens has photosensitive property and controls laser power, and the laser stable power passive photosensitive lens structure is characterized in that a photosensitive molecular material is arranged between two lenses with different reflectivity as a dielectric layer, when laser irradiates the photosensitive molecular material, a current carrier can be excited to enter a conduction band or a valence band of the photosensitive molecular material, so that the migration of the current carrier is realized, the laser stable power passive photosensitive lens generates refractive index change corresponding to incident light space distribution, and when the laser moves to a dark space or the laser does not continue to work, the refractive index is recovered.
2. The passive photosensitive device of claim 1, wherein the passive photosensitive device is configured to increase laser power stability, and further comprises: the laser stable power passive photosensitive lens is a photochromic lens, and photosensitive compositions sensitive to light are doped in the lens.
3. The passive photosensitive device of claim 2, wherein the passive photosensitive device is configured to increase laser power stability, and further comprises: the photosensitive composition is selected from one or more of silver iodide, silver bromide, silver chloride or silver fluoride.
4. A method for realizing a passive photosensitive device for improving laser power stability is characterized in that: the method comprises the following steps:
1) screening a proper passive photosensitive lens according to a laser with a specific wavelength;
2) adjusting different doping ion types and doping concentrations to minimize the power stability coefficient, including adjusting the photosensitive characteristics and photosensitive response time of the material by the change and proportion doping of the material;
3) a passive photosensitive lens with the best debugging effect is arranged in a required light path to improve the stability of laser power;
the passive photosensitive lens adopts a passive photosensitive device for improving the laser power stability of claim 1, 2 or 3.
5. A method for realizing a passive photosensitive device for improving laser power stability is characterized in that: the laser can be one of an X-ray laser, an ultraviolet laser, a visible light laser and an infrared laser.
6. A test method of a passive photosensitive device for improving laser power stability is characterized in that: the adopted devices comprise a laser, an attenuation sheet, a laser stabilized power passive photosensitive lens and a detector, and the operation steps comprise:
1) blocking the output light of the laser in a non-illumination environment;
2) removing the shelter, outputting light from the laser, adjusting the laser power through the attenuation sheet, and then exciting photosensitive substances in the laser power-stabilizing passive photosensitive lens to separate ions;
3) the ions have different transmittances to the laser with different powers, so that the aim of stabilizing the laser power is fulfilled.
7. The preparation of the passive photosensitive device for improving the laser power stability according to claim 5, wherein: the transmittance of the laser stable power passive photosensitive lens is linearly changed along with the input laser power,
(1) the output power can be expressed as:
Pout＝S×Pin+I
wherein the laser input power is PinLaser output power of PoutS is the slope of the linear fitting curve, and I is the intercept of the linear fitting curve;
(2) the output power with power fluctuation is expressed as:
P'out＝S×(Pin+)+I
wherein input power fluctuations are present;
the relative power fluctuation across the laser stabilized passive photosensitive mirror can be expressed as
The ratio of the output power fluctuation to the input power fluctuation can be defined as a power stability factor expressed by
It can be seen from the formula that the ratio of the relative output power fluctuation to the input power fluctuation under the condition of constant input power depends on the slope constant S and the intercept constant I. From the formula, it can be seen that if the ratio of the output power fluctuation to the input power fluctuation is smaller, the larger the value of I is required, and the smaller the value of S is required. If the corresponding photosensitive material and the doping material are reasonably proportioned, the smaller the power stability coefficient is, the more remarkable the power stability effect is.
8. The method for testing the passive photosensitive device for improving the laser power stability according to claim 7, wherein the method comprises the following steps: the laser stable power passive photosensitive lens is a photochromic lens, and the material of the laser stable power passive photosensitive lens can be organic photosensitive material or inorganic photosensitive material and the like; the passive photosensitive lens is added with a photosensitive composition, and the doped ions of the photosensitive composition can be silver iodide, silver bromide, silver chloride or silver fluoride.
9. The method for testing the passive photosensitive device for improving the laser power stability according to claim 8, wherein the method comprises the following steps: the laser can be one of an X-ray laser, an ultraviolet laser, a visible light laser and an infrared laser.
10. The method for testing the passive photosensitive device for improving the laser power stability according to claim 7, wherein the method comprises the following steps: the laser stable power passive photosensitive lens is an optical resin lens, a sunglass lens and other glass lenses prepared from photosensitive materials.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492259A (en) * | 2003-09-04 | 2004-04-28 | 上海理工大学 | Method for producing tunable optical fiber attenuator |
| CN1594162A (en) * | 2004-06-30 | 2005-03-16 | 华南理工大学 | Glass material with photosensitivity |
| CN200950628Y (en) * | 2006-03-28 | 2007-09-19 | 陈文雷 | Self-adaption photosensitive video camera |
| CN101231387A (en) * | 2008-01-22 | 2008-07-30 | 长春理工大学 | Light intensity self-adaptive control system based on LCD for atmospheric laser communication system |
| CN101548231A (en) * | 2007-06-28 | 2009-09-30 | 株式会社理光 | Photosensitized composite material, three-dimensional memory material and recording medium, optical power limiting material and element, photocuring material and stereolithography system, and fluoresc |
| US20110051231A1 (en) * | 2009-08-26 | 2011-03-03 | Kilolambda Technologies Ltd. | Light excited limiting window |
| CN102025097A (en) * | 2010-11-05 | 2011-04-20 | 电子科技大学 | Electro-optic frequency modulation single-frequency short-cavity laser for improving laser efficiency |
| CN102629731A (en) * | 2012-02-14 | 2012-08-08 | 浙江嘉莱光子技术有限公司 | Control method for simultaneously stabilizing laser wavelength and power and control device thereof |
| CN102684056A (en) * | 2012-05-16 | 2012-09-19 | 清华大学 | Laser device capable of adjusting optimal transmittance |
| CN103756228A (en) * | 2013-12-17 | 2014-04-30 | 华中科技大学 | Self-driven dimming device and preparation method thereof |
| CN105375255A (en) * | 2015-09-14 | 2016-03-02 | 北京理工大学 | Laser output power optimization method based on variable-transmittance endoscope |
| CN106842759A (en) * | 2017-02-23 | 2017-06-13 | 中国人民解放军国防科学技术大学 | For the Light polarizing high accuracy light power stabilising device of rubidium atom and its application method |
-
2020
- 2020-04-30 CN CN202010363872.XA patent/CN111505842B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492259A (en) * | 2003-09-04 | 2004-04-28 | 上海理工大学 | Method for producing tunable optical fiber attenuator |
| CN1594162A (en) * | 2004-06-30 | 2005-03-16 | 华南理工大学 | Glass material with photosensitivity |
| CN200950628Y (en) * | 2006-03-28 | 2007-09-19 | 陈文雷 | Self-adaption photosensitive video camera |
| CN101548231A (en) * | 2007-06-28 | 2009-09-30 | 株式会社理光 | Photosensitized composite material, three-dimensional memory material and recording medium, optical power limiting material and element, photocuring material and stereolithography system, and fluoresc |
| CN101231387A (en) * | 2008-01-22 | 2008-07-30 | 长春理工大学 | Light intensity self-adaptive control system based on LCD for atmospheric laser communication system |
| US20110051231A1 (en) * | 2009-08-26 | 2011-03-03 | Kilolambda Technologies Ltd. | Light excited limiting window |
| CN102025097A (en) * | 2010-11-05 | 2011-04-20 | 电子科技大学 | Electro-optic frequency modulation single-frequency short-cavity laser for improving laser efficiency |
| CN102629731A (en) * | 2012-02-14 | 2012-08-08 | 浙江嘉莱光子技术有限公司 | Control method for simultaneously stabilizing laser wavelength and power and control device thereof |
| CN102684056A (en) * | 2012-05-16 | 2012-09-19 | 清华大学 | Laser device capable of adjusting optimal transmittance |
| CN103756228A (en) * | 2013-12-17 | 2014-04-30 | 华中科技大学 | Self-driven dimming device and preparation method thereof |
| CN105375255A (en) * | 2015-09-14 | 2016-03-02 | 北京理工大学 | Laser output power optimization method based on variable-transmittance endoscope |
| CN106842759A (en) * | 2017-02-23 | 2017-06-13 | 中国人民解放军国防科学技术大学 | For the Light polarizing high accuracy light power stabilising device of rubidium atom and its application method |
Non-Patent Citations (1)
| Title |
|---|
| 胡吉永, pages: 137 - 139 * |
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