CN101105554A - Metallic rod supported micro optical fiber circular optical resonance cavity - Google Patents
Metallic rod supported micro optical fiber circular optical resonance cavity Download PDFInfo
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- CN101105554A CN101105554A CNA200710070400XA CN200710070400A CN101105554A CN 101105554 A CN101105554 A CN 101105554A CN A200710070400X A CNA200710070400X A CN A200710070400XA CN 200710070400 A CN200710070400 A CN 200710070400A CN 101105554 A CN101105554 A CN 101105554A
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Abstract
The invention discloses a micro optical fiber circle optical resonator cavity supported by a metal bar; a micro optical fiber is wound around the metal bar and forms a circle resonator cavity; the optical fiber contacts a micro optical fiber ring in coupling way; one end of a tapered optical fiber is the input end of optical signals, and the other end of the tapered optical fiber is the output end of the optical signals. The resonator cavity in the invention has sound stability and is easy to be controlled and regulated; the distance between the micro optical fibers in coupling area can be regulated so that the output is regulated; the invention can reach critical coupling condition and be used in solution; furthermore, the character of the resonator cavity can be regulated by the way that the mental bar is electrified.
Description
Technical field
The present invention relates to micro optical element, especially relate to the micro optical fiber circular optical resonance cavity that a kind of metal bar supports.
Background technology
Optical resonator has been widely used in optical information processing, sensing, active device.The structure that realizes optical resonator at present mainly contains F-P chamber, microballoon resonator cavity, dish-type resonator cavity or the like.In recent years, along with the improvement of optical fiber preparation technology, low-loss micro-nano fiber is produced out, and is expected to be applied to micro-nano photonics device, improves the device integrated level.The optical fibre ring resonator cavity is exactly an example wherein.The method that obtains the fine optical resonator of low-light in the world mainly is that nano optical fibers is directly contacted by Van der Waals for and electrostatic force, forms annular or spirality resonator cavity, perhaps the ring junction resonator cavity is made in the optical fiber knotting.But Van der Waals for and electrostatic force all a little less than, make direct contacted ring resonator stable inadequately, ring junction resonator cavity coupling simultaneously is difficult relatively transfers.
Summary of the invention
The micro optical fiber circular optical resonance cavity that the object of the present invention is to provide a kind of metal bar to support, utilize the stable ring resonator of micron diameter optical fiber preparation, the adjusting coupling length can be controlled output and reach critical coupling, and the resonance characteristic that energising also can be regulated resonator cavity to metal bar.
The technical scheme that the present invention solves its technical matters employing is:
The low-light fibre is wrapped in makes the optics ring resonator on the metal bar, the coupling of little fiber optic loop optical fiber contact position, an end of tapered fiber is the light signal input end, the other end of tapered fiber is an output terminal.
The beneficial effect that the present invention has is: resonator cavity of the present invention has good stability, be easy to control and adjusting, can regulate output by regulating the fine overlapping length of coupled zone low-light, can reach the critical coupling state, can in solution, use, can also regulate the resonator cavity characteristic by switching on to metal bar.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the aerial typical transmission spectrum of ring resonator;
Typical resonance spectrum when being a plurality of peak (a) (b) is typical single harmonic peak when regulating coupling length and reaching critical coupling.
Fig. 4 is the situation that changes output by the adjusting coupling length; (a) be transmissivity with angle between input optical fibre and the output optical fibre (φ among Fig. 2), promptly situation about changing with respect to coupling length (b) is regulated in the coupling process typical change process of the single peak degree of depth.
Fig. 5 is after the metal bar energising, the situation that harmonic peak is mobile with size of current.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, 2, the present invention does not break the optical fiber drawing-down to micron dimension and maintenance, again the low-light fibre is wrapped in and makes the optics ring resonator on the metal bar 3, optical fiber contact position 4 forms coupling on little fiber optic loop, an end 1 of tapered fiber is the light signal input end simultaneously, and the other end 2 of tapered fiber is an output terminal.
The fine diameter of described low-light is 1～5 μ m.Described ring resonator, its diameter is determined by the metal bar diameter.The metal bar diameter generally is no more than 2cm.Described metal bar 3 is gold, silver or copper rod.Described ring resonator is a circle or a multi-turn structure.The loss decision that the maximum number of turns of multi-turn structure is introduced by metal bar generally is no more than ten circles.
(1) uses general single mode fiber drawing by high temperature method to prepare diameter and be about 2 μ m low-light fibres, under optical microscope, the low-light fibre is wrapped in the ring resonator of preparation diameter 480 μ m on the copper rod, then, the input tunable laser, measure resonance characteristic, reach critical coupling by regulating coupling length.Fig. 1, the 2nd, structural principle synoptic diagram of the present invention; Fig. 3 (a) is that this ring resonator is imported the transmitted spectrum that tunable laser obtains in air, calculates gained Q value and is about 4000; Fig. 3 (b) is the typical transmission spectrum at the single peak that the critical coupling situation records, and obtains loss that copper rod introduces the chances are 3.62dB/mm by Theoretical Calculation.
(2) use general single mode fiber drawing by high temperature method to prepare 2 μ m low-light fibres, same method is prepared ring resonator, by regulating accurate universal stage, regulates the output optical characteristics.Fig. 4 be the transmission spectrum of ring resonator with angle between input optical fibre and the output optical fibre, promptly coupling length situation about changing is regulated coupled zone length as can be seen and can effectively be regulated output characteristics.(a) be transmissivity with angle between input optical fibre and the output optical fibre (φ among Fig. 1), promptly situation about changing with respect to coupling length (b) is regulated in the coupling process typical change process of the single peak degree of depth.
(3) use general single mode fiber drawing by high temperature method to prepare 3 μ m low-light fibres, same method is prepared ring resonator, adds electric current to metal bar, changes the variation that size of current is measured output characteristics.Accompanying drawing 5 moves situation about changing with size of current for the transmission spectrum of ring resonator.In current ratio hour, frequency spectrum moves with size of current and almost satisfies linear relationship, thereby can realize accurately controlling the harmonic peak position with little electric current.
The present invention is wrapped in the low-light fibre and makes the micro optical fiber circular optical resonance cavity that metal bar supports on the metal bar, has extraordinary stability, and output characteristics is adjustable, can reach critical coupling by regulating.Simultaneously can also regulate resonance characteristic by switching on to metal bar.
Claims (5)
1. the micro optical fiber circular optical resonance cavity that supports of metal bar, it is characterized in that: the low-light fibre is wrapped in makes the optics ring resonator on the metal bar, the coupling of little fiber optic loop optical fiber contact position, an end of tapered fiber is the light signal input end, the other end of tapered fiber is an output terminal.
2. the micro optical fiber circular optical resonance cavity that metal bar according to claim 1 supports is characterized in that: the fine diameter of described low-light is 1～5 μ m.
3. the micro optical fiber circular optical resonance cavity that metal bar according to claim 1 supports, it is characterized in that: described ring resonator, its diameter is determined by the metal bar diameter.
4. the micro optical fiber circular optical resonance cavity that metal bar according to claim 1 supports, it is characterized in that: described metal bar is gold, silver or copper rod.
5. the micro optical fiber circular optical resonance cavity that metal bar according to claim 1 supports is characterized in that: described ring resonator is a circle or a multi-turn structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710070400XA CN100437174C (en) | 2007-07-30 | 2007-07-30 | Metallic rod supported micro optical fiber circular optical resonance cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710070400XA CN100437174C (en) | 2007-07-30 | 2007-07-30 | Metallic rod supported micro optical fiber circular optical resonance cavity |
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| Publication Number | Publication Date |
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| CN101105554A true CN101105554A (en) | 2008-01-16 |
| CN100437174C CN100437174C (en) | 2008-11-26 |
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| CNB200710070400XA Expired - Fee Related CN100437174C (en) | 2007-07-30 | 2007-07-30 | Metallic rod supported micro optical fiber circular optical resonance cavity |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621713A (en) * | 2012-03-22 | 2012-08-01 | 南京大学 | Rapid tunable microfiber ring resonator |
| CN102707388A (en) * | 2012-06-05 | 2012-10-03 | 华中科技大学 | Micro and nano optical fiber filter, optical fiber laser, optical fiber sensing device and manufacturing method |
| CN102830462A (en) * | 2012-09-13 | 2012-12-19 | 南京大学 | High-birefringence component and manufacturing method thereof |
| CN103178434A (en) * | 2013-03-04 | 2013-06-26 | 华南理工大学 | Wavelength-tunable miniature single-mode optical fiber laser |
| CN104155246A (en) * | 2014-08-26 | 2014-11-19 | 中国海洋大学 | Detection device and detection method of sea water salinity |
| CN104238009A (en) * | 2014-09-12 | 2014-12-24 | 北京大学 | Method for achieving optical isolation though nonreciprocity of mode coupling and optical isolator |
| CN105785287A (en) * | 2016-04-27 | 2016-07-20 | 浙江大学 | Ultrasensitive magnetic field sensor based on optical microcavity |
| CN105842637A (en) * | 2016-04-27 | 2016-08-10 | 浙江大学 | Extra-high sensitive magnetic field sensor based on multiple-mode interference optical microcavity |
| CN109164537A (en) * | 2018-09-25 | 2019-01-08 | 北京爱杰光电科技有限公司 | A kind of resonant cavity couple state control system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI487961B (en) * | 2014-05-02 | 2015-06-11 | Univ Nat Taiwan | Microfiber coupler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4676584A (en) * | 1983-06-22 | 1987-06-30 | Metatech Corporation | Fiber optic light coupling assemblies |
| US6633696B1 (en) * | 1998-12-07 | 2003-10-14 | California Institute Of Technology | Resonant optical wave power control devices and methods |
| US6891864B2 (en) * | 2001-07-09 | 2005-05-10 | California Institute Of Technology | Fiber-coupled microsphere Raman laser |
| CN2870237Y (en) * | 2006-02-20 | 2007-02-14 | 浙江大学 | Micro-optical-fiber ring knot optical resonance cavity |
| CN100385753C (en) * | 2006-05-17 | 2008-04-30 | 浙江大学 | Micro-ptical-fiber ring-node laser |
-
2007
- 2007-07-30 CN CNB200710070400XA patent/CN100437174C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621713A (en) * | 2012-03-22 | 2012-08-01 | 南京大学 | Rapid tunable microfiber ring resonator |
| CN102707388A (en) * | 2012-06-05 | 2012-10-03 | 华中科技大学 | Micro and nano optical fiber filter, optical fiber laser, optical fiber sensing device and manufacturing method |
| CN102707388B (en) * | 2012-06-05 | 2015-06-10 | 华中科技大学 | Micro and nano optical fiber filter, optical fiber laser, optical fiber sensing device and manufacturing method |
| CN102830462A (en) * | 2012-09-13 | 2012-12-19 | 南京大学 | High-birefringence component and manufacturing method thereof |
| CN102830462B (en) * | 2012-09-13 | 2014-10-29 | 南京大学 | High-birefringence component and manufacturing method thereof |
| CN103178434B (en) * | 2013-03-04 | 2016-01-20 | 华南理工大学 | A kind of Wavelength-tunable miniature single-mode optical fiber laser |
| CN103178434A (en) * | 2013-03-04 | 2013-06-26 | 华南理工大学 | Wavelength-tunable miniature single-mode optical fiber laser |
| CN104155246A (en) * | 2014-08-26 | 2014-11-19 | 中国海洋大学 | Detection device and detection method of sea water salinity |
| CN104238009A (en) * | 2014-09-12 | 2014-12-24 | 北京大学 | Method for achieving optical isolation though nonreciprocity of mode coupling and optical isolator |
| CN104238009B (en) * | 2014-09-12 | 2017-07-18 | 北京大学 | The nonreciprocity of Land use models coupling realizes optically isolated method and optoisolator |
| CN105785287A (en) * | 2016-04-27 | 2016-07-20 | 浙江大学 | Ultrasensitive magnetic field sensor based on optical microcavity |
| CN105842637A (en) * | 2016-04-27 | 2016-08-10 | 浙江大学 | Extra-high sensitive magnetic field sensor based on multiple-mode interference optical microcavity |
| CN109164537A (en) * | 2018-09-25 | 2019-01-08 | 北京爱杰光电科技有限公司 | A kind of resonant cavity couple state control system |
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| CN100437174C (en) | 2008-11-26 |
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