CN101769860A - Second-order nonlinear optical test system realized by utilizing integrating sphere - Google Patents
Second-order nonlinear optical test system realized by utilizing integrating sphere Download PDFInfo
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- CN101769860A CN101769860A CN200810072519A CN200810072519A CN101769860A CN 101769860 A CN101769860 A CN 101769860A CN 200810072519 A CN200810072519 A CN 200810072519A CN 200810072519 A CN200810072519 A CN 200810072519A CN 101769860 A CN101769860 A CN 101769860A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims description 8
- 238000007405 data analysis Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000004907 flux Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000012113 quantitative test Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- WYOHGPUPVHHUGO-UHFFFAOYSA-K potassium;oxygen(2-);titanium(4+);phosphate Chemical compound [O-2].[K+].[Ti+4].[O-]P([O-])([O-])=O WYOHGPUPVHHUGO-UHFFFAOYSA-K 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000005477 standard model Effects 0.000 description 1
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Abstract
本发明涉及一种基于积分球的二阶非线性光学测试系统。本系统充分利用积分球的工作原理，输出正比于倍频光光通量的光通量到探测器上，实现对样品的倍频效应的定性和定量测试。使用积分球具有测量结果可靠，能降低并除去光线的形状、发散角度以及探测器上不同位置响应度差异所造成的测量误差等优点。同时它相当于一种光强度衰减器，能降低强的倍频光对探测器的可能损伤。
The invention relates to a second-order nonlinear optical testing system based on an integrating sphere. This system makes full use of the working principle of the integrating sphere to output the luminous flux proportional to the frequency doubling luminous flux to the detector to realize the qualitative and quantitative testing of the frequency doubling effect of the sample. The use of an integrating sphere has the advantages of reliable measurement results, and can reduce and eliminate the measurement errors caused by the shape of the light, the divergence angle, and the difference in responsivity at different positions on the detector. At the same time, it is equivalent to a light intensity attenuator, which can reduce the possible damage to the detector caused by strong frequency doubled light.
Description
Technical field:
The present invention relates to a kind of new second-order nonlinear optical test system that utilizes integrating sphere to realize.
Background technology:
Nonlinear optics is a frontier of contemporary optics, is the research response of material and science of the nonlinear relationship that light intensity presents under the high light effect.In numerous nonlinear optical effects, second order nonlinear optical effect (frequency-doubled effect) be the most noticeable also be the nonlinear effect of studying at most.The spectral range of utilizing second order nonlinear optical effect can the expanded laser light frequency to cover.
At present, the second order nonlinear optical effect test macro is not seen yet ripe commercial machine product, especially carries out accurate quantitative analysis.For overcoming this problem, we have set up a cover to frequency doubled light high resolving power, high sensitivity, and easily distinguish and discern the second order nonlinear optical effect test macro of frequency doubled light and non-frequency doubled light, patent applied for: 200710008880.7.In this cover system, the collection of frequency doubled light is seemed most important, aspect quantitative test, frequency doubled light collection analysis fully is the key of quantitative test especially.Therefore, a kind of mode that can rationally collect frequency doubled light of design is very meaningful.
Summary of the invention:
The objective of the invention is the optical integration ball part is installed in the novel second order nonlinear optical effect test macro of our development, thereby make it can fully collect frequency doubled light, carry out the test of qualitative and quantitative second order nonlinear optical effect more easily.
A kind of second-order nonlinear optical test system based on integrating sphere, in this system, LASER Light Source 1 emitted laser irradiation sample 2, sample 2 places the center of integrating sphere 3 or places the back side of integrating sphere incident light window, integrating sphere 3 is collected the frequency doubled light that sample produces, output to spectrometer 4, after spectrometer 4 beam split light is outputed to detector 5, signal is outputed to instrument control with detector 5 and data analysis system 6 carries out data analysis.
Described LASER Light Source 1 adopts the electric-optically Q-switched solid state laser of output 1.06um laser, or adopts the laser of other wavelength of OPO technology modulation output.
The light-emitting window of described integrating sphere 3 is directly aimed at the slit of spectrometer 4.
Described frequency doubled light is transmitted to spectrometer 4 with optical fiber 7.
The major function of integrating sphere is a light collector, and the light that is collected can be used as diffuse reflection light source or measured source, has been widely used in the multiple optic testing system.Adding integrating sphere in the former patent " second-order nonlinear optical test system " (200710008880.7) is exactly as a light collector and measured source with it.Frequency doubled light repeatedly after the diffuse reflection, evenly distributes the illumination on the whole ball wall through integrating sphere ball wall, so be mapped to the luminous flux that luminous flux on the detector is proportional to frequency doubled light by the window on the ball wall.Therefore, by making comparisons with the test of standard model, the frequency doubled light of tested sample is through integrating sphere, spectrometer beam split, and the luminous flux to the detector just can carry out the size of quantitative test sample frequency-doubled effect again.
When the advantage of sample chamber placement integrating sphere was to use integrating sphere to come the measuring light flux in this test macro, measurement result was very reliable.Integrating sphere can reduce and remove the measuring error that diverse location responsiveness difference is caused on shape, dispersion angle and the detector of light.And integrating sphere also can be thought a kind of light intensity decays device, can reduce strong frequency doubled light may damage detector.This cover test macro makes full use of the advantage of integrating sphere, accurately realizes the qualitative and quantitative test to the frequency-doubled effect of sample.
Description of drawings:
Accompanying drawing 1 is not for using the placement synoptic diagram based on the second-order nonlinear optical test system of integrating sphere of optical fiber, accompanying drawing 2 is for using the placement synoptic diagram based on the second-order nonlinear optical test system of integrating sphere of optical fiber, comprise: LASER Light Source 1, sample 2, integrating sphere 3, spectrometer 4, detector 5, instrument control and data analysis system 6, optical fiber 7.
Before LASER Light Source is positioned at sample, sample is positioned at the back side of integrating sphere center or integrating sphere incident light window, connect the slit of the light-emitting window of integrating sphere and spectrometer or the light-emitting window of integrating sphere is directly aimed at the slit of spectrometer with optical fiber, connect detector behind the spectrometer, detector is connected to instrument control and data analysis system.
Accompanying drawing 3,4 is respectively the frequency multiplication peak figure of nonlinear optical crystal potassium titanium oxide phosphate under 1.06um that instrument control and data gathering system capture and the 1.94um laser.
Embodiment:
Be somebody's turn to do the specific embodiments of invention below in conjunction with description of drawings.
The LASER Light Source that the present invention adopts: adopt electric-optically Q-switched solid state laser output 1.06um laser, or adopt the laser of other wavelength of OPO technology modulation output.Use optical filter, can use wherein a kind of laser of wavelength respectively; Or use the laser of two kinds of wavelength simultaneously.
The integrating sphere that the present invention adopts is general integrating sphere, places the sample chamber, is used to collect the frequency doubled light that sample produces.Sample or place the integrating sphere center or place the back side of integrating sphere incident light window.
Spectrometer preferred resolution≤0.2nm that the present invention adopts, wavelength accuracy≤0.5nm, wavelength repeatable accuracy≤0.3nm.The light-emitting window of integrating sphere is directly aimed at the slit of spectrometer 3.
The detector that the present invention adopts can be selected array type detector for use.
Instrument control and data analysis system that the present invention adopts are used for data acquisition and analysis.
The optical fiber that the present invention adopts is used to connect the light-emitting window of integrating sphere and the slit of spectrometer, and the light that integrating sphere is come out is transmitted to spectrometer.
Embodiment:
Use respectively 1.06um and 1.94um laser testing classical nonlinear optical crystal potassium titanium oxide phosphate (KTiOPO
4, frequency-doubled effect KTP).
Adopt electric-optically Q-switched solid state laser output 1.06um laser, or adopt the laser of OPO technology modulation output 1.94um, add optical filter respectively, make the laser radiation of having only a kind of wave band to sample.Collect the light that sample produces with integrating sphere, be transmitted to the slit of Edinburgh FLS920 spectrometer with optical fiber, spectrometer with frequency doubled light and other veiling glare separately outputs to ANDOR with light
TMThe iDus ccd detector.Instrument control and data gathering system (main frame: intel Pentium Dual-Core Inside
TM) captured the frequency multiplication peak well.Frequency multiplication peak figure under two wavelength sees accompanying drawing 3,4, wherein Fig. 3 be test under the 1.06um arrive at the frequency multiplication peak of 0.532um, Fig. 4 is the frequency multiplication peak at 0.97um that the test under the 1.94um is arrived.
Claims (5)
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| CN200810072519A CN101769860A (en) | 2008-12-31 | 2008-12-31 | Second-order nonlinear optical test system realized by utilizing integrating sphere |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018217A (en) * | 2012-11-30 | 2013-04-03 | 中国科学院福建物质结构研究所 | Non-linear optical test system under out-field induction |
| CN110763640A (en) * | 2019-11-20 | 2020-02-07 | 大连民族大学 | An integrating sphere absorption spectrometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508449A (en) * | 1981-06-25 | 1985-04-02 | Shimadzu Corporation | Apparatus for measuring diamond colors |
| JPH0829258A (en) * | 1994-07-12 | 1996-02-02 | Canon Inc | Color and gloss-degree measuring apparatus |
| CN101295117A (en) * | 2007-04-26 | 2008-10-29 | 中国科学院福建物质结构研究所 | A second-order nonlinear optical testing system |
-
2008
- 2008-12-31 CN CN200810072519A patent/CN101769860A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508449A (en) * | 1981-06-25 | 1985-04-02 | Shimadzu Corporation | Apparatus for measuring diamond colors |
| JPH0829258A (en) * | 1994-07-12 | 1996-02-02 | Canon Inc | Color and gloss-degree measuring apparatus |
| CN101295117A (en) * | 2007-04-26 | 2008-10-29 | 中国科学院福建物质结构研究所 | A second-order nonlinear optical testing system |
Non-Patent Citations (3)
| Title |
|---|
| 陆耀东等: "积分球技术在高能激光能量测量中的应用", 《强激光与粒子束 增刊》 * |
| 高学燕等: "积分球的光功率波形变换理论", 《光学学报》 * |
| 魏继峰等: "高能激光能量计溯源问题研究", 《强激光与粒子束》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018217A (en) * | 2012-11-30 | 2013-04-03 | 中国科学院福建物质结构研究所 | Non-linear optical test system under out-field induction |
| CN110763640A (en) * | 2019-11-20 | 2020-02-07 | 大连民族大学 | An integrating sphere absorption spectrometer |
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Application publication date: 20100707 |