CN103471819B - Index-matching fluid - Google Patents
Index-matching fluid Download PDFInfo
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- CN103471819B CN103471819B CN201310450547.7A CN201310450547A CN103471819B CN 103471819 B CN103471819 B CN 103471819B CN 201310450547 A CN201310450547 A CN 201310450547A CN 103471819 B CN103471819 B CN 103471819B
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Abstract
The invention discloses a kind of index-matching fluid, comprise the raw material of following parts by weight: polyglycol 1-99.9 part and dilution or emulsifying agent 0.1-99 part.Index-matching fluid of the present invention, adopt polyglycol as base fluid, be mixed with dilution or emulsifying agent, its cost is low, makes simple; Have good stability, mobility, less surface tension, result of use is good.
Description
Technical field
The present invention relates to a kind of REFRACTIVE LIQUID, particularly relate to a kind of index-matching fluid.
Background technology
In the detection that all kinds of optics is relevant, frequent needs add the impact that index-matching fluid brings optical property to eliminate interface, junction between two optical device.For optical communication field, China's broadband access in recent years and fiber-to-the-home development make the demand of planar optical waveguide chip product surge.Planar optical waveguide is exactly in wafer plane, utilize the optical index of different material to produce light wave conduction path, and completes over the technology of the specific light communication function that could be realized by multiple single optical device.During test planar optical waveguide chip; chip and other optical device such as optical fiber, fiber array etc. can be coupled together; in order to avoid the change of the optical property such as intensity, polarization state change to appear in light in these tie point positions, usually can between these tie points index-matching fluid on point.
Index-matching fluid, except being used between optical device, also can be used in one or more outside surfaces of single optical device to improve the optical property at the interface contacted with air.The index-matching fluid major part that current China uses is all from imported from America, and complicated component, and its price is at about 300 yuan/bottle (every bottle of 7.4cc), expensive, use cost is high.
Summary of the invention
The technical problem to be solved in the present invention is, for existing above-mentioned defect, provides the index-matching fluid that a kind of cost is low, result of use is good.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of index-matching fluid, comprises the raw material of following parts by weight: polyglycol 1-99.9 part and dilution or emulsifying agent 0.1-99 part.
In index-matching fluid of the present invention, the preferred polyglycol-200 of described polyglycol.
In index-matching fluid of the present invention, described dilution is at least one in water and alcohol organic solvent.
In index-matching fluid of the present invention, described wet concentration selects deionized water; Described alcohol organic solvent selects ethanol.
In index-matching fluid of the present invention, described emulsifying agent adopts the emulsifying agent of OP series.
In index-matching fluid of the present invention, emulsifier op-10 selected by described emulsifying agent.
In index-matching fluid of the present invention, the raw material of this index-matching fluid comprises polyglycol and dilution; This index-matching fluid at 25 DEG C, the refractive index at wavelength 1550nm place is 1.3645-1.4456.
In index-matching fluid of the present invention, the raw material of this index-matching fluid comprises polyglycol and emulsifying agent; This index-matching fluid at 25 DEG C, the refractive index at wavelength 1550nm place is 1.4290-1.4456.
In index-matching fluid of the present invention, the preparation of this index-matching fluid is: mixed by described raw material by described parts by weight, is stirred to abundant mixing at normal temperatures.
In index-matching fluid of the present invention, the preparation of this index-matching fluid also comprises carries out de-soak treatment step to the described index-matching fluid of gained.
Implement the present invention and have following beneficial effect: index-matching fluid of the present invention, adopt polyglycol as base fluid, be mixed with dilution or emulsifying agent, its cost is low, makes simple; There is good stability, mobility, and less surface tension, result of use is good.
This index-matching fluid is used between two optical device, as camera lens and detect between workpiece, planar optical waveguide chip and between optical fiber and fiber array, between quartz (glass) base or silica-based optical device, quartz (glass) base or silica-based optical device and fiber array, quartz (glass) base or carry out index matching between silica-based optical device and optical fiber, between optical fiber and optical fiber, between optical fiber and fiber array, between fiber array and fiber array, be unlikely to make light occur the change of the optical property such as intensity, polarization state change in these tie point positions.Such as: because refractive index does not mate the optical power loss caused when reducing being coupled and aligned of optical device and fiber array and optical fiber.
This index-matching fluid also may be used for one or more outside surfaces of single optical device to improve the optical property with air contact interface.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the refractive index curve chart of the index-matching fluid that embodiment of the present invention 1-4 obtains;
Fig. 2 is the refractive index curve chart of the index-matching fluid that embodiment of the present invention 5-8 obtains.
Embodiment
Index-matching fluid of the present invention, comprises the raw material of following parts by weight: polyglycol (PEG) 1-99.9 part and dilution or emulsifying agent 0.1-99 part.
Wherein, polyglycol as base fluid, preferred polyglycol-200(PEG-200).
One as index-matching fluid of the present invention is selected, and it comprises polyglycol and dilution.The viscosity of dilution this index-matching fluid adjustable, to make this matching fluid have good mobility, can penetrate in the gap of waiting between device better; Meanwhile, be also beneficial to the dissipation of bubble in this index-matching fluid, the refractive index of this matching fluid can be regulated to a certain extent.Dilution is at least one in water and alcohol organic solvent; The wherein preferred deionized water of water, alcohol organic solvent preferred alcohol.Understandably, this dilution also can adopt common water and other alcohol organic solvent.This index-matching fluid at 25 DEG C, the refractive index at wavelength 1550nm place is 1.3645-1.4456; The polyglycol of corresponding parts by weight and dilution can be adopted to carry out obtained index-matching fluid by required refractive index.
The preparation of this index-matching fluid is: by weight by polyglycol and dilution mixing, be stirred to abundant mixing at normal temperatures, obtain final product.Mixing time is determined according to actual conditions, as 5min.If have bubble in this index-matching fluid made, then further de-soak process is carried out to this index-matching fluid made, avoid having bubble in index-matching fluid and cause stop to light, reduce the probability that light passes through.De-soak process can be adopted with the following method: be placed on by index-matching fluid in vacuum tank, carries out vacuumizing to remove bubble.The index-matching fluid of gained also can leave standstill to dissipation of air bubbles by de-soak process, and the standing time determined according to the actual conditions dissipation of air bubbles time.De-soak process then can be carried out after index-matching fluid is made, and also can carry out before index-matching fluid uses again.
Another kind as index-matching fluid of the present invention is selected, and it comprises polyglycol and emulsifying agent; The surface tension of emulsifying agent this index-matching fluid adjustable.Emulsifying agent adopts the emulsifying agent of OP series; Preferably, emulsifying agent is emulsifier op-10 (analyzing pure).This index-matching fluid at 25 DEG C, the refractive index at wavelength 1550nm place is 1.4290-1.4456; The polyglycol of corresponding parts by weight and emulsifying agent can be adopted to carry out obtained index-matching fluid by required refractive index.And, by regulating the ratio between polyglycol and emulsifying agent, when the refractive index that can ensure index-matching fluid is almost constant, regulate the surface tension of this index-matching fluid, thus make this index-matching fluid can form the cambered surface of different radian on the end face such as device or optical fiber, adapt to various test request.
The preparation of this index-matching fluid is: by weight by polyglycol and emulsifying agent mixing, be stirred to abundant mixing at normal temperatures, obtain final product.Mixing time is determined according to actual conditions, as 5min.If have bubble in this index-matching fluid made, then further de-soak process is carried out to this index-matching fluid made, avoid having bubble in index-matching fluid and cause stop to light, reduce the probability that light passes through.De-soak process can be adopted with the following method: be placed on by index-matching fluid in vacuum tank, carries out vacuumizing to remove bubble.The index-matching fluid of gained also can leave standstill to dissipation of air bubbles by de-soak process, and the standing time determined according to the actual conditions dissipation of air bubbles time.De-soak process then can be carried out after index-matching fluid is made, and also can carry out before index-matching fluid uses again.
Index-matching fluid of the present invention, be applicable between two optical device, as between camera lens and detection workpiece, between planar optical waveguide chip and optical fiber (or fiber array), quartz (glass) base or silica-based optical device between, quartz (glass) base or silica-based optical device and fiber array, quartz (glass) base or between silica-based optical device and optical fiber, between optical fiber and optical fiber, between optical fiber and fiber array, index matching is carried out between fiber array and fiber array, light can be avoided to occur intensity in these tie point positions, the change of the optical properties such as polarization state change.Such as: because refractive index does not mate the optical power loss caused when reducing being coupled of optical device and fiber array and optical fiber.During use, the chien shih light this index-matching fluid being joined above-mentioned device by entering into corresponding device after index-matching fluid again, thus reduces the loss of coupling from a device.This index-matching fluid can also assist planar optical waveguide chip to guarantee the accurate of planar optical waveguide chip testing result with accurate aligning the between fiber array and optical fiber further.
Understandably, this index-matching fluid also may be used for one or more outside surfaces of single optical device to improve the optical property with Air Interface.
Below in conjunction with embodiment 1-8, the invention will be further described.
Embodiment 1-8
Get each raw material by parts by weight listed by table 1, prepare index-matching fluid, and at 25 DEG C, wavelength 1550nm place records the refractive index of index-matching fluid.
The refractive index of each raw material weight number of table 1. embodiment 1-8 and acquisition index-matching fluid
The refractive index curve of the index-matching fluid that embodiment 1-4 obtains as shown in Figure 1, wherein adopts linear fit: y=0.081x+1.363, R
2=0.999.The refractive index curve of the index-matching fluid that embodiment 5-8 obtains as shown in Figure 2, wherein adopts linear fit: y=0.016x+1.429, R
2=0.984.All can draw from Fig. 1,2, the refractive index of index-matching fluid increases along with the increase of polyglycol parts by weight, and both are linear; The ranges of indices of refraction of index-matching fluid of the present invention meets actual optic test and docking demand, and effective.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. an index-matching fluid, is characterized in that, comprises the raw material of following parts by weight: polyglycol 1-99.9 part and dilution or emulsifying agent 0.1-99 part;
Described dilution is at least one in water and alcohol organic solvent;
Described emulsifying agent adopts the emulsifying agent of OP series;
This index-matching fluid is applicable between two optical device.
2. index-matching fluid according to claim 1, is characterized in that, the preferred polyglycol-200 of described polyglycol.
3. index-matching fluid according to claim 1, is characterized in that, described wet concentration selects deionized water; Described alcohol organic solvent selects ethanol.
4. index-matching fluid according to claim 1, is characterized in that, emulsifier op-10 selected by described emulsifying agent.
5. index-matching fluid according to claim 1, is characterized in that, the raw material of this index-matching fluid comprises polyglycol and dilution; This index-matching fluid at 25 DEG C, the refractive index at wavelength 1550nm place is 1.3645-1.4456.
6. index-matching fluid according to claim 1, is characterized in that, the raw material of this index-matching fluid comprises polyglycol and emulsifying agent; This index-matching fluid at 25 DEG C, the refractive index at wavelength 1550nm place is 1.4290-1.4456.
7. the index-matching fluid according to any one of claim 1-6, is characterized in that, the preparation of this index-matching fluid is: mixed by described raw material by described parts by weight, is stirred to abundant mixing at normal temperatures.
8. index-matching fluid according to claim 7, is characterized in that, the preparation of this index-matching fluid also comprises carries out de-soak treatment step to the described index-matching fluid of gained.
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| CN201310450547.7A CN103471819B (en) | 2013-09-27 | 2013-09-27 | Index-matching fluid |
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| CN113533253A (en) * | 2021-06-25 | 2021-10-22 | 光华科学技术研究院(广东)有限公司 | Refractive index matching fluid and application thereof in optical detection of glass |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661850A (en) * | 2012-04-12 | 2012-09-12 | 中国科学院西安光学精密机械研究所 | Non-destructive testing device for transmission loss of plastic optical fibre |
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| WO2006135344A1 (en) * | 2005-06-13 | 2006-12-21 | National University Of Singapore | A photosensitising composition and uses thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102661850A (en) * | 2012-04-12 | 2012-09-12 | 中国科学院西安光学精密机械研究所 | Non-destructive testing device for transmission loss of plastic optical fibre |
Non-Patent Citations (2)
| Title |
|---|
| 全息聚合物弥散液晶器件电光特性的研究;张斌等;《物理学报》;20040630;第53卷(第6期);B016-34页 * |
| 甲基丙烯酸甲酯/含氟丙烯酸酯共聚物梯度折射率光学小球的合成与应用;黄维;《中国优秀硕士学位论文全文数据库（电子期刊）》;20061231;1850-1855页 * |
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Effective date of registration: 20170505 Address after: The cultural building No. 11 garden Zhao letter square Nanhai District Guicheng road 528200 South Street of Guangdong city in Foshan Province, one of the 3 layer 301 Patentee after: Guangdong Rui Xinyuan Technology Co. Ltd. Address before: 528251 Guangdong Province, Foshan City Nanhai Pingzhou community building A block 4 photoelectric Valley Patentee before: Sunblence Technologies Co., Ltd. |