CN102499619A - GRIN (Gradient-Index Fiber Probe) optical fiber probe and manufacturing method, focusing performance detection device and detection method thereof - Google Patents
GRIN (Gradient-Index Fiber Probe) optical fiber probe and manufacturing method, focusing performance detection device and detection method thereof Download PDFInfo
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Abstract
The invention discloses a GRIN (Gradient-Index Fiber Probe) optical fiber probe and manufacturing method, focusing performance detection device and detection method thereof. The GRIN optical fiber probe is an ultra-small optical probe which is formed by welding a single-mode optical fiber, a coreless optical fiber and a multi-mode optical fiber and performing length cutting. The focusing performance detection device of the GRIN optical fiber probe comprises a light source, a probe clamp, a microscope objective, a light guide pipe, a CCD (Charge Coupled Device) and a computer, wherein a Gaussian beam emitted by the light source is amplified by the microscope objective and then is transmitted to a CCD target surface through the light guide pipe to detect and record a light intensity distribution profile; and light intensity information is processed and analyzed in the computer to further judge a distance from a waist position to an output end face of the probe and the size of light spots. By using the manufacturing method of the optical probe provided by the invention, the manufacturing of the GRIN optical fiber probe with length not over 1 mm scale is realized; and the detection device provided by the invention can realize high-accuracy detection of the focusing performance of the probe.
Description
Technical field
The present invention relates to the optical fiber technology field, especially GRIN optical fiber probe in the biomedical imaging system Miniaturization Research and preparation method thereof, focusing performance checkout gear and detection method.
Background technology
Optic probe is that (Optical Coherence Tomography, a critical component in OCT) are mainly used in the output light source signal and collect and carry biological tissue's detection of information signal for the optical coherence tomography of detection of biological tissue characteristics.Development based on the miniaturization optic probe of GRIN Lens (gradient-index lens) is to make the OCT system be used for great difficult problem of endoscope's environment; Wherein, the detection of the making of GRIN optical fiber probe (gradient-index fiber probe) and focusing performance thereof is a key technology.
At present; Based on the size of the optic probe of GRIN Lens several millimeters magnitudes; In the diagnosis of relatively large tissues such as gastrointestinal tract and arteries or organ, has using value; But the imaging that is inappropriate for deep layer, narrow and small tissue or organ (like cardiovascular) detects, and this need develop and the good extra small optic probe of biological tissue's machinery compatibility.In addition; The focusing performance of extra small optic probe is to be used for the key index that the OCT imaging detects; But because of the optic probe size extra small; The distance of the position distance probes output end face that light beam focuses on is very short, and focused spot size is very little, and present beam quality detecting instrument can not be used for directly detecting the focusing performance of extra small optic probe.
A typical extra small optic probe should be and the good extra small probe of full fiber type (size is in the 0.1mm magnitude) of biological tissue's machinery compatibility; The checkout gear of its focusing performance should comprise light source, probe anchor clamps, microcobjective, light guide and ingredients such as CCD and computer; And present optic probe is not accomplished full fiber type as yet; Its Performance Detection instrument can't be used for directly carrying out the beam waist position of extra small optic probe focus gauss light beam and the detection of size with a tight waist, and the present invention carries out unfolded to this key technology just.
Summary of the invention
The objective of the invention is to overcome present optic probe size and can not reach the problem that 0.1mm magnitude and beam quality detecting instrument can not directly detect aspects such as extra small optic probe focusing performance, a kind of GRIN optical fiber probe and preparation method thereof, focusing performance checkout gear and detection method are provided.
For achieving the above object, the present invention adopts following technical proposals:
A kind of GRIN optical fiber probe comprises a section single-mould fiber, one section coreless fiber and one section multimode fibre, and it is characterized in that: said single-mode fiber, coreless fiber and multimode fibre are in turn connected into one and constitute extra small optic probe.
The optical fiber of GRIN optical fiber probe making usefulness can adopt the remarkable optical fiber company limited in Taiwan, and (Prime Optical Fiber Corporation, the model of Taiwan) producing is that coreless fiber and the model of NCF125 is the multimode fibre of MMF125.
A kind of manufacture method of above-mentioned GRIN optical fiber probe is characterized in that, comprises the steps:
(1) single-mode fiber one end assembling FC/APC standard interface, an end and coreless fiber weld together;
(2) be put into single-mode fiber and coreless fiber after the welding on the special optic fibre cutting machine, carry out the coreless fiber cutting, make it remain to preset length by means of microscope;
(3) take and step (1)-(2) identical step, weld together coreless fiber and multimode fibre, and the cutting multimode fibre is accomplished the making of GRIN optical fiber probe to preset length;
The model that the optical fiber bonding machine of using in the above step adopts manufacturer of electrical equipment industry Co., Ltd. of Furukawa Electronic to produce is the Fusion Splicer heat sealing machine of S117A; The model that fiber cutter adopts U.S. PK Technology manufacturer to produce is the Fiber Cleaver cutting machine of FK II-4, and it is the stereomicroscope of XTL-2400 that microscope adopts the model of the close optical instrument company limited of Chinese Shanghai cosmos Rhizoma Atractylodis Macrocephalae production.
A kind of GRIN optical fiber probe focusing performance checkout gear; Be used to detect above-mentioned GRIN optical fiber probe, comprise light source, optical fiber, probe anchor clamps, GRIN optical fiber probe, microcobjective, light guide, CCD and computer, it is characterized in that: the light beam that said light source sends is received the import of GRIN optical fiber probe through optical fiber; The GRIN optical fiber probe is located by the clamping of probe anchor clamps; Make its outlet aim at microcobjective, microcobjective connects CCD through light guide, and the output of CCD is connected to computer.
A kind of above-mentioned GRIN optical fiber probe focusing performance detection method; Adopt the focusing performance checkout gear of above-mentioned GRIN optical fiber probe to detect; It is characterized in that: be fixed in the GRIN optical fiber probe on the probe anchor clamps, have an end of FC/APC interface to connect light source, the other end is over against microcobjective; Light source sends Gaussian beam; This light beam focuses on the back through the GRIN optical fiber probe and carries out the beam sizes amplification by microcobjective, and through carrying out IMAQ by CCD behind the light guide, last length and the spot size with a tight waist of in computer, analyzing and judge the output face of beam waist position distance probes.
The present invention compared with prior art; Have following conspicuous outstanding substantive distinguishing features and remarkable advantage: coreless fiber is welded between single-mode fiber and the multimode fibre; Overcome the little defective of Mode-field Diameter in Single-mode, thereby improved the focusing performance of probe; When focusing performance detects; After utilizing microcobjective that light beam is amplified; Be input on the CCD target surface through light guide again; Light source, GRIN optical fiber probe, object lens, light guide, CCD and computer are organically combined, realized accurate detection and analysis extra small GRIN optical fiber probe focusing performance, and processing ease, convenient.
Description of drawings
Fig. 1 is a GRIN optical fiber probe focusing performance checkout gear structural representation of the present invention;
Fig. 2 is the GRIN optical fiber probe structural principle sketch map among Fig. 1;
Fig. 3 is the GRIN optical fiber probe sketch map that has reflecting surface;
Fig. 4 is the GRIN optical fiber probe sketch map that has micro prisms.
The specific embodiment
The preferred embodiments of the present invention combine accompanying drawing to discuss as follows:
Embodiment one: referring to Fig. 2; This GRIN optical fiber probe comprises a section single-mould fiber (203), one section coreless fiber (204) and one section multimode fibre (205), it is characterized in that: said single-mode fiber (203), coreless fiber (204) and multimode fibre (205) are in turn connected into one and constitute extra small optic probe.
Embodiment two: referring to Fig. 2; This GRIN optical fiber probe manufacture method is: single-mode fiber (203) and coreless fiber (204) weld together with optical fiber splicer behind the coat through going; And carry out length cutting with fiber cutter; Make coreless fiber (204) keep preset length, adopts same welding and cutting method, make welding, coreless fiber (204) and multimode fibre (205) after cutting weld together; And cutting multimode fibre (205) is accomplished the making of GRIN optical fiber probe to preset length; The fibre core (202) of light beam of light source (201) through single-mode fiber (203) enters into coreless fiber (204) and expands bundle, focuses to aerial a certain position through multimode fibre (205) again, i.e. beam waist position (206).
Embodiment three: participate in Fig. 3, present embodiment and embodiment two are basic identical, and special feature is following: multimode fibre (205) and another coreless fiber (301) welding; And cutting coreless fiber (302) is to length in reserve; Utilize abrasive method to grind an inclined-plane to coreless fiber (302) then, and plating one deck total reflection film (301), thereby make the direction of propagation of incident beam change 90 degree; And focus to the aerial a certain position of probe sidewall, i.e. beam waist position (303).
Embodiment four: referring to Fig. 4; Present embodiment and embodiment three are basic identical; Special feature is following: paste a multimode fibre (205) and a micro prisms (401), micro prisms (401) has reflection mould (402), and direction changed 90 degree when incident beam was transmitted to reflection mould (402); And focus to the aerial a certain position of probe sidewall, i.e. beam waist position (403).
Embodiment five: referring to Fig. 1; This GRIN optical fiber probe focusing performance checkout gear; Comprise light source (101), optical fiber (102), probe anchor clamps (103), microcobjective (106), light guide (107), CCD (108) and computer (109), it is characterized in that the light beam that said light source (101) sends is received GRIN optical fiber probe (104) import through optical fiber (102); GRIN optical fiber probe (104) is located by probe anchor clamps (103) clamping; Make its outlet aim at microcobjective (106), microcobjective (106) connects CCD (108) through light guide (107), and the output of CCD (108) is connected to computer (109).
Embodiment six: referring to Fig. 1; This GRIN optical fiber probe focusing performance detection method; Adopt above-mentioned focusing performance checkout gear to detect; It is characterized in that: be fixed in GRIN optical fiber probe (104) on the probe anchor clamps (103), have an end of FC/APC interface to connect light source (101), the other end is over against microcobjective (106); Light source sends Gaussian beam; This light beam focuses on the back through GRIN optical fiber probe (104) and carries out the beam sizes amplification by microcobjective (106), and carries out IMAQ through light guide (107) back by CCD (108), in computer (109), analyzes and judge the length and the spot size with a tight waist of beam waist position (105) distance probes output face at last.
Claims (4)
1. GRIN optical fiber probe; Comprise a section single-mould fiber (203), one section coreless fiber (204) and one section multimode fibre (205), it is characterized in that: said single-mode fiber (203), coreless fiber (204) and multimode fibre (205) are in turn connected into one and constitute extra small optic probe.
2. the manufacture method of a GRIN optical fiber probe according to claim 1 is characterized in that making step is following:
(1) single-mode fiber (203) one ends assembling FC/APC standard interface, an end and coreless fiber (204) weld together;
(2) be put into single-mode fiber (203) and coreless fiber (204) after the welding on the special optic fibre cutting machine, carry out coreless fiber (204) cutting, make it remain to preset length by means of microscope;
(3) take and step (1)-(2) identical step, weld together coreless fiber (204) and multimode fibre (205), and cutting multimode fibre (205) is accomplished the making of GRIN optical fiber probe (104) to preset length;
The model that the optical fiber bonding machine of using in the above step adopts manufacturer of electrical equipment industry Co., Ltd. of Furukawa Electronic to produce is the Fusion Splicer heat sealing machine of S117A; The model that fiber cutter adopts U.S. PK Technology manufacturer to produce is the Fiber Cleaver cutting machine of FK II-4, and it is the stereomicroscope of XTL-2400 that microscope (201) adopts the model of the close optical instrument company limited of Chinese Shanghai cosmos Rhizoma Atractylodis Macrocephalae production.
3. the focusing performance checkout gear of a GRIN optical fiber probe; Be used to detect GRIN optical fiber probe according to claim 1; Comprise light source (101), optical fiber (102), probe anchor clamps (103), GRIN optical fiber probe (104), microcobjective (106), light guide (107), CCD (108) and computer (109); It is characterized in that: the light beam that said light source (101) sends is received GRIN optical fiber probe (104) import through optical fiber (102); GRIN optical fiber probe (104) is located by probe anchor clamps (103) clamping; Make its outlet aim at microcobjective (106), microcobjective (106) connects CCD (108) through light guide (107), and the output of CCD (108) is connected to computer (109).
4. the detection method of the focusing performance of a GRIN optical fiber probe according to claim 1; Adopt the focusing performance checkout gear of GRIN optical fiber probe according to claim 3 to detect; It is characterized in that: be fixed in GRIN optical fiber probe (104) on the probe anchor clamps (103); There is an end of FC/APC interface to connect light source (101); The other end is over against microcobjective (106), and light source sends Gaussian beam, and this light beam focuses on the back through GRIN optical fiber probe (104) and carries out the beam sizes amplification by microcobjective (106); And, in computer (109), analyze at last and the length and the spot size with a tight waist of judgement beam waist position (105) distance probes output face through light guide (107) back carrying out IMAQ by CCD (108).
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Cited By (18)
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|---|---|---|---|---|
| CN103246011A (en) * | 2013-05-17 | 2013-08-14 | 珠海瑞光科技有限公司 | Beam expanding fiber and manufacturing method thereof |
| CN104019964A (en) * | 2014-06-10 | 2014-09-03 | 上海大学 | Device and method for detecting quality of focused light spot of mini-type self-focusing lens |
| WO2015172699A1 (en) * | 2014-05-14 | 2015-11-19 | 深圳大学 | All-fibre laser mixer and mixing optical fibre laser thereof |
| CN105531611A (en) * | 2013-09-13 | 2016-04-27 | 诺华股份有限公司 | OCT probe with bowing flexor |
| CN105556361A (en) * | 2013-07-22 | 2016-05-04 | Adc电信股份有限公司 | Expanded beam fiber optic connector, and cable assembly, and methods for manufacturing |
| CN105698674A (en) * | 2016-02-25 | 2016-06-22 | 上海大学 | Integration fiber optic interferometer |
| CN105737741A (en) * | 2016-02-25 | 2016-07-06 | 上海大学 | Integrated interference type micro-displacement optical fiber sensor, calibration device thereof and calibration method thereof |
| CN106033092A (en) * | 2015-03-09 | 2016-10-19 | 中国科学院物理研究所 | Optical fiber probe and preparation method thereof |
| CN106092517A (en) * | 2016-06-01 | 2016-11-09 | 上海大学 | The test device of extra small GRIN fiber lens coupling efficiency and method of testing |
| CN107247037A (en) * | 2017-07-28 | 2017-10-13 | 中国工程物理研究院激光聚变研究中心 | Molecular state organic pollutant monitoring sensor based on single mode multimode coreless fiber structure |
| CN107515446A (en) * | 2017-09-14 | 2017-12-26 | 浙江大学 | Method and probe based on optical-fiber type iris filter extended focal depth |
| CN110132398A (en) * | 2019-05-30 | 2019-08-16 | 上海大学 | Integrated interference-type micro-vibration fibre optical sensor and its caliberating device and scaling method |
| CN111521269A (en) * | 2020-04-22 | 2020-08-11 | 西北核技术研究院 | Liquid nitrogen refrigeration type infrared focal plane array laser focusing irradiation experimental device and method |
| CN112099160A (en) * | 2020-08-14 | 2020-12-18 | 中国科学院上海微系统与信息技术研究所 | Rear end connecting structure of implantable nerve photoelectric electrode and preparation method thereof |
| CN112611543A (en) * | 2020-12-11 | 2021-04-06 | 武汉光谷信息光电子创新中心有限公司 | Calibration structure of optical fiber probe array and calibration method thereof |
| CN112816188A (en) * | 2021-01-19 | 2021-05-18 | 浙江未来技术研究院(嘉兴) | GRIN lens optimal object image distance measuring system |
| CN112842270A (en) * | 2021-01-06 | 2021-05-28 | 浙江大学 | Focal depth expansion probe based on high-order mode energy regulation |
| CN107515446B (en) * | 2017-09-14 | 2024-04-26 | 浙江大学 | Method for expanding focal depth based on optical fiber type pupil filter and probe |
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| CN103246011A (en) * | 2013-05-17 | 2013-08-14 | 珠海瑞光科技有限公司 | Beam expanding fiber and manufacturing method thereof |
| CN103246011B (en) * | 2013-05-17 | 2015-04-29 | 光库通讯(珠海)有限公司 | Beam expanding fiber and manufacturing method thereof |
| CN105556361A (en) * | 2013-07-22 | 2016-05-04 | Adc电信股份有限公司 | Expanded beam fiber optic connector, and cable assembly, and methods for manufacturing |
| CN105556361B (en) * | 2013-07-22 | 2019-02-15 | Adc电信股份有限公司 | Expanded core fiber connector and cable assembly and manufacturing method |
| CN105531611A (en) * | 2013-09-13 | 2016-04-27 | 诺华股份有限公司 | OCT probe with bowing flexor |
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| CN106033092B (en) * | 2015-03-09 | 2018-09-07 | 中国科学院物理研究所 | A kind of optical fiber probe and preparation method thereof |
| CN106033092A (en) * | 2015-03-09 | 2016-10-19 | 中国科学院物理研究所 | Optical fiber probe and preparation method thereof |
| CN105737741B (en) * | 2016-02-25 | 2018-08-07 | 上海大学 | Integrated interference-type micro-displacement fibre optical sensor and its caliberating device and scaling method |
| CN105737741A (en) * | 2016-02-25 | 2016-07-06 | 上海大学 | Integrated interference type micro-displacement optical fiber sensor, calibration device thereof and calibration method thereof |
| CN105698674A (en) * | 2016-02-25 | 2016-06-22 | 上海大学 | Integration fiber optic interferometer |
| CN106092517A (en) * | 2016-06-01 | 2016-11-09 | 上海大学 | The test device of extra small GRIN fiber lens coupling efficiency and method of testing |
| CN107247037B (en) * | 2017-07-28 | 2023-06-02 | 中国工程物理研究院激光聚变研究中心 | Molecular organic pollutant monitoring sensor based on single-mode-multimode-coreless optical fiber structure |
| CN107247037A (en) * | 2017-07-28 | 2017-10-13 | 中国工程物理研究院激光聚变研究中心 | Molecular state organic pollutant monitoring sensor based on single mode multimode coreless fiber structure |
| CN107515446A (en) * | 2017-09-14 | 2017-12-26 | 浙江大学 | Method and probe based on optical-fiber type iris filter extended focal depth |
| CN107515446B (en) * | 2017-09-14 | 2024-04-26 | 浙江大学 | Method for expanding focal depth based on optical fiber type pupil filter and probe |
| CN110132398A (en) * | 2019-05-30 | 2019-08-16 | 上海大学 | Integrated interference-type micro-vibration fibre optical sensor and its caliberating device and scaling method |
| CN111521269A (en) * | 2020-04-22 | 2020-08-11 | 西北核技术研究院 | Liquid nitrogen refrigeration type infrared focal plane array laser focusing irradiation experimental device and method |
| CN112099160A (en) * | 2020-08-14 | 2020-12-18 | 中国科学院上海微系统与信息技术研究所 | Rear end connecting structure of implantable nerve photoelectric electrode and preparation method thereof |
| CN112611543B (en) * | 2020-12-11 | 2022-12-27 | 武汉光谷信息光电子创新中心有限公司 | Calibration structure of optical fiber probe array and calibration method thereof |
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| CN112842270A (en) * | 2021-01-06 | 2021-05-28 | 浙江大学 | Focal depth expansion probe based on high-order mode energy regulation |
| CN112816188A (en) * | 2021-01-19 | 2021-05-18 | 浙江未来技术研究院(嘉兴) | GRIN lens optimal object image distance measuring system |
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Application publication date: 20120620 |