CN203981562U - The real-time monitoring device of a kind of optical material and laser interaction process - Google Patents
The real-time monitoring device of a kind of optical material and laser interaction process Download PDFInfo
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- CN203981562U CN203981562U CN201420348672.7U CN201420348672U CN203981562U CN 203981562 U CN203981562 U CN 203981562U CN 201420348672 U CN201420348672 U CN 201420348672U CN 203981562 U CN203981562 U CN 203981562U
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Abstract
The utility model provides the real-time monitoring device of a kind of optical material and laser interaction process, comprises the irradiation laser light source, probe source, photodetector, detector for scattered light and the fluorescent probe that are connected with optical material light path respectively; Between probe source and optical material, be provided with and survey light the first focalizer; Between optical material and photodetector, be provided with successively and survey light the second focalizer, survey light filtering apparatus and spatial filter; Between optical material and detector for scattered light, be provided with successively scattered light gathering-device and scattered light filtering apparatus; Between optical material and fluorescent probe, be provided with successively phosphor collection device and fluorescence filtering apparatus.Whether the utility model contributes to grasp in time the residing state of optical material, can predict optical material and can damage under the chronic exposure of laser, reduces unnecessary loss, greatly saves the use cost of laser system.
Description
Technical field
The utility model relates to the detection technique field of optical material and element, specifically the real-time monitoring device of a kind of optical material and laser interaction process.
Background technology
In a lot of optical systems, particularly, in strong laser system, the optical characteristics of adopted optical material and element is had to strict requirement, such as the homogeneity of the yardstick of laser-damaged threshold value, defect and density, optical characteristics etc.In existing optical system, the detection evaluation of the optical characteristics to adopted optical material and element is substantially all the mode that adopts off-line type, and adopt respectively diverse ways to detect to different optical characteristics, such as by scattering microtechnic or fluorescence microscopy, defect being detected to analysis, utilize laser calorimetry or spectrophotometric method to measure optical absorption characteristic etc.
Research shows, under laser irradiation, due to the interaction of laser and material, can cause that material behavior changes.Because the variation of this specific character tends to have influence on the performance of these materials in optical system, thereby have influence on the operation of whole optical system, and sometimes, the variation of the material behavior that this laser causes is also relevant with the time length of laser irradiation, therefore, the necessary process to these optical material Stimulated Light irradiation, or perhaps the interactional process of laser and material is carried out Real-Time Monitoring.
Utility model content
The purpose of this utility model is to provide the real-time monitoring device of a kind of optical material and laser interaction process, real-time detection is carried out in variation by the photo-thermal absorption signal under laser irradiation to optical material, and obtains the real-time information of optical material and laser interaction process in conjunction with the real-time detection of the variation of scattered light signal and the variation of LASER Excited Fluorescence.
The technical solution of the utility model is:
A real-time monitoring device for optical material and laser interaction process, comprises the irradiation laser light source, probe source, photodetector, detector for scattered light and the fluorescent probe that are connected with optical material light path respectively; Between described probe source and optical material, be provided with and survey light the first focalizer; Between described optical material and photodetector, be provided with successively and survey light the second focalizer, survey light filtering apparatus and spatial filter; Between described optical material and detector for scattered light, be provided with successively scattered light gathering-device and scattered light filtering apparatus; Between described optical material and fluorescent probe, be provided with successively phosphor collection device and fluorescence filtering apparatus.
The real-time monitoring device of described optical material and laser interaction process, is provided with and surveys light angular adjustment apparatus between described detection light the second focalizer and detection light filtering apparatus.
The real-time monitoring device of described optical material and laser interaction process, is provided with between described detection light filtering apparatus and spatial filter and surveys light light-dividing device, and the reflected light path of described detection light light-dividing device is provided with detection of optical power sniffer.
As shown from the above technical solution, the utility model is by the real-time detection to optical material variation of photo-thermal absorption characteristic under laser irradiation, in conjunction with the real-time detection of the variation of the variation to scattered light signal and LASER Excited Fluorescence signal, can obtain the real-time information of optical material and laser interaction process.The utility model can be used for the real time on-line monitoring of optical material and element in optical system.By the real time on-line monitoring analysis to optical material and laser interaction process, contribute to understand in time optical material and the residing state of element grasped, whether can predict optical material can damage under the chronic exposure of laser, thereby can take appropriate measures in advance to avoid the generation of damage process, reduce unnecessary loss, greatly save the use cost of laser system.
Brief description of the drawings
Fig. 1 is the structural representation of the real-time monitoring device of transmission class optical material described in the utility model and laser interaction process;
Fig. 2 is the structural representation of the real-time monitoring device of reflection class optical material described in the utility model and laser interaction process.
In upper figure: 1-irradiation laser light source, 2-optical material sample, 3-probe source, 4-surveys light the first focalizer, 5-surveys light the second focalizer, 6-surveys light angular adjustment apparatus, 7-surveys light filtering apparatus, 8-surveys light light-dividing device, 9-detection of optical power sniffer, 10-surveys light spatial filter, 11-photodetector, 12-scattered light gathering-device, 13-scattered light filtering apparatus, 14-detector for scattered light, 15-phosphor collection device, 16-fluorescence filtering apparatus, 17-fluorescent probe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of real-time monitoring device for transmission class optical material and laser interaction process, include irradiation laser light source 1, optical material sample 2, probe source 3, survey light the first focalizer 4, survey light the second focalizer 5, survey light angular adjustment apparatus 6, survey light filtering apparatus 7, survey light light-dividing device 8, detection of optical power sniffer 9, survey light spatial filter 10, photodetector 11, scattered light gathering-device 12, scattered light filtering apparatus 13, detector for scattered light 14, phosphor collection device 15, fluorescence filtering apparatus 16 and fluorescent probe 17.
Survey light the first focalizer 4, detection light the second focalizer 5, scattered light gathering-device 12 and phosphor collection device 15 and can adopt condenser lens, survey light angular adjustment apparatus 6 and can adopt high reflection mirror, survey light filtering apparatus 7, scattered light filtering apparatus 13 and fluorescence filtering apparatus 16 and can adopt optical filter, survey light light-dividing device 8 and can adopt light splitting piece or Amici prism, detection of optical power sniffer 9 can adopt light power meter or optical power detector.
The laser beam irradiation being sent by irradiation laser light source 1 is to optical material sample 2, due to the absorption of optical material sample 2 to irradiation laser energy, can produce temperature rise in Ear Mucosa Treated by He Ne Laser Irradiation region, the physical characteristics of optical material sample 2 is changed, produce the phenomenons such as photothermal laser effect.
The detection light light beam being sent by probe source 3 focuses on optical material sample 2 by surveying light the first focalizer, area coincidence with irradiation laser irradiation, from detection light light beam process detection light second focalizer 5 successively of optical material sample 2 transmissions, survey light angular adjustment apparatus 6, filter again the parasitic light of other wave band except surveying light through surveying light filtering apparatus 7, then be divided into two bundles by surveying light light-dividing device 8, a branch of detection of optical power sniffer 9 that enters, for the power of surveying light is surveyed, another Shu Ze is surveyed by photodetector 11 after spatial filter 10 is processed.
From optical material sample 2, the irradiation laser of scattering is collected by scattered light gathering-device 12, then is surveyed by detector for scattered light 14 after scattered light filtering apparatus 13 filters.
Optical material sample 2 is collected by phosphor collection device 15 because of the fluorescence of generation that laser irradiation excites, then is surveyed by fluorescent probe 17 after fluorescence filtering apparatus 16 filters.
Principle of work of the present utility model:
Optical material is under Irradiation of High, and absorbing laser energy causes that local temperature raises, and produces induced with laser photo-thermal effect, thereby causes that the physical characteristics of optical material changes, such as the variation of surperficial thermal deformation, refractive index etc.Now, also pass through the irradiation zone (producing the region of photo-thermal effect) of intense laser beam with the weak detecting light beam of another bundle, the propagation characteristic of this detecting light beam can change, such as producing newly-increased dispersing or convergence effect.The size of the variation of this propagation characteristic is relevant to absorptivity, the heat diffusion properties etc. of optical material, absorbs greatlyr, and the variation of propagation characteristic is also larger.The variation of this propagation characteristic detects by place a spatial filter in the detection light path of outgoing.After spatial filter, arrive photodetector detection luminous energy can due to survey light newly-increased disperse or convergence effect changes.Meanwhile, optical material, under laser irradiation, can cause the scattering of irradiation laser, and because the energy of absorbing laser can excite generation fluorescence.
In laser chronic exposure process, particularly in the irradiation process of light laser, because the continuous accumulation of laser energy on optical material, the photo-thermal absorption characteristic of optical material also can change continuously, therefore, the utility model obtains the real-time information of optical material and laser interaction process by the Real-Time Monitoring of the photo-thermal absorption characteristic under laser chronic exposure to optical material.In addition, in the process of laser irradiation, scattered light and fluorescence also may correspondingly change, therefore, when Real-Time Monitoring photo-thermal absorption characteristic changes, Real-Time Monitoring is also carried out in the variation of the variation to scattered light signal and LASER Excited Fluorescence signal, can obtain so the more real-time information about optical material and laser interaction process.
Figure 2 shows that the real-time monitoring device that can be used for reflecting class optical material and laser interaction process, its structure is all similar to the monitoring device of laser interaction process to the transmission class optical material shown in Fig. 1 with principle, repeats no more.
The above embodiment is only that preferred implementation of the present utility model is described; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. a real-time monitoring device for optical material and laser interaction process, is characterized in that: comprise the irradiation laser light source, probe source, photodetector, detector for scattered light and the fluorescent probe that are connected with optical material light path respectively; Between described probe source and optical material, be provided with and survey light the first focalizer; Between described optical material and photodetector, be provided with successively and survey light the second focalizer, survey light filtering apparatus and spatial filter; Between described optical material and detector for scattered light, be provided with successively scattered light gathering-device and scattered light filtering apparatus; Between described optical material and fluorescent probe, be provided with successively phosphor collection device and fluorescence filtering apparatus.
2. the real-time monitoring device of optical material according to claim 1 and laser interaction process, is characterized in that: between described detection light the second focalizer and detection light filtering apparatus, be provided with and survey light angular adjustment apparatus.
3. the real-time monitoring device of optical material according to claim 1 and laser interaction process, it is characterized in that: between described detection light filtering apparatus and spatial filter, be provided with and survey light light-dividing device, the reflected light path of described detection light light-dividing device is provided with detection of optical power sniffer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348672.7U CN203981562U (en) | 2014-06-27 | 2014-06-27 | The real-time monitoring device of a kind of optical material and laser interaction process |
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| CN201420348672.7U CN203981562U (en) | 2014-06-27 | 2014-06-27 | The real-time monitoring device of a kind of optical material and laser interaction process |
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| CN203981562U true CN203981562U (en) | 2014-12-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048915A (en) * | 2014-06-27 | 2014-09-17 | 无锡利弗莫尔仪器有限公司 | Real-time monitoring device and method of optical material and laser interaction process |
| CN110757014A (en) * | 2019-10-29 | 2020-02-07 | 北京航空航天大学 | High-efficiency laser processing real-time feedback method and device for thermal barrier coating blade |
-
2014
- 2014-06-27 CN CN201420348672.7U patent/CN203981562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048915A (en) * | 2014-06-27 | 2014-09-17 | 无锡利弗莫尔仪器有限公司 | Real-time monitoring device and method of optical material and laser interaction process |
| CN110757014A (en) * | 2019-10-29 | 2020-02-07 | 北京航空航天大学 | High-efficiency laser processing real-time feedback method and device for thermal barrier coating blade |
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