CN102866461A - Coupling method of photon chip and optical fibers - Google Patents
Coupling method of photon chip and optical fibers Download PDFInfo
- Publication number
- CN102866461A CN102866461A CN2012103793862A CN201210379386A CN102866461A CN 102866461 A CN102866461 A CN 102866461A CN 2012103793862 A CN2012103793862 A CN 2012103793862A CN 201210379386 A CN201210379386 A CN 201210379386A CN 102866461 A CN102866461 A CN 102866461A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- lens
- photon chip
- fiber
- photon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
Provided is a coupling method of a photon chip and optical fibers. The photon chip, a single mode input optical fiber and a single mode output optical fiber are included, wherein the single mode input optical fiber and the single mode output optical fiber are arranged at the input end and the output end of the photon chip respectively, and mode field converters are arranged between the photon chip and the single mode input optical fiber and between the photon chip and the single mode output optical fiber respectively. Fused biconical taper optical fibers, lens optical fibers and lens groups are adopted in the mode field converters. The input/output optical fiber and the fused biconical taper optical fibers or the lens optical fibers or the lens groups are coupled with the photon chip, the photon chip is a photon integration waveguide chip, and accordingly the problem of mode field mismatch between the waveguide chip and the optical fibers is solved. The coupling method has the advantage that mode field of arbitrary shapes and small mode field diameters can be achieved conveniently and feasibly by adopting the fused biconical taper optical fibers, the lens optical fibers or the lens groups.
Description
Technical field
The present invention relates to the coupling scheme of a kind of photon chip and optical fiber.Particularly relate to a kind of employing lens fiber for the special waveguide chip of optics or discrete optical lens/lens combination and carry out the photon chip of mould field conversion and the coupling process of optical fiber.
Background technology
Planar integration optical circuit (PIC) technology is transmitted photon energy in waveguide material, similar with the transmission of photon in optical fiber to a great extent.This technology is easy to scale, automated production with it, good stability, be easy to the various features such as integrated, at price and the aspect of performance various features such as all more have superiority, be considered to the rising star of optical communication industry, have boundless application prospect.And when performance requirement was higher, the superiority of PIC technology was more obvious.In case grasped structure and the technique of PIC, just can make on a large scale, at low cost very complicated device.Active and the passive device of PIC is in the just real market reflection of PIC technological development present situation of application present situation of optical communication field, in the extensive extensive commercial PIC type components and parts, mainly contain the device of the various functions such as laser instrument, detector, luminous-power distributor, array waveguide grating (AWG) multiplexer/demultiplexer, optical filter, optical attenuator, photoswitch, modulator/demodulator, two-way three wave devices and double wave device at present.
Integrated optical wave guide device is generally made at six kinds of materials, they are: lithium niobate (LiNbO3), III-V family semiconducting compound, silicon dioxide (SiO2), SOI(Silicon-on-Insulator, silicon-on-insulator), polymkeric substance (Polymer) and glass.The lithium niobate waveguide is to form waveguide by spreading the Ti ion at lithium columbate crystal, and waveguiding structure is diffused; The InP waveguide is take InP as substrate with under-clad layer, and take InGaAsP as sandwich layer, take InP or InP/ air as top covering, waveguiding structure is for burying ridged or ridged; SiO 2 waveguide is take silicon chip as substrate, and the SiO2 material that mixes take difference is as sandwich layer and covering, and waveguiding structure is for burying rectangle; The SOI waveguide is to make at the SOI substrate, and substrate, under-clad layer, sandwich layer and top covering material are respectively Si, SiO2, Si and air, and waveguiding structure is ridged; Polymer waveguide is take silicon chip as substrate, and take the Polymer material of different levels of doping as sandwich layer, waveguiding structure is for burying rectangle; Glass waveguide is to form waveguide by spreading the Ag ion at glass material, and waveguiding structure is diffused.
Optoelectronic device to be integrated with monolithic integrated and mix integrated two kinds.At present integrated opto-electronic device is in the junior stage, and the research of integrated device is just seemed more have important strategic importance.At present, a lot of companies have reduced single chip integrated research and development and have dropped into, and declaring to mix integrated is best scheme, and they think does not have a kind of material all to provide best performance for every kind of product, this has also determined to mix and has used various materials, and various functions is all realized by the material that mates most.The PLC technology is for the integrated reliable platform that provides is provided, can be with integrated such as laser instrument, detector, OEIC(photoelectricity) be integrated together with all kinds of passive PLC devices, make that the device inside light path is integrated, the optics discrete component reduces, its advantage is that feature richness, volume are little, speed is high, has improved degree of stability and fiduciary level, improve the encapsulation qualification rate of optical device product, reduced the device production cost.The research that mixes simultaneously integrated technology also will be the integrated technical foundation that provides of photoelectricity more highly, thereby plays an important role in next generation communication system.
Miniaturization, integrated be two important development directions of optoelectronic device, this miniaturization, integrated photon chip require waveguide to adopt high index-contrast, small size cross section, the mould field of waveguide guided mode is less and distribute may be irregular.The mode field diameter of the general accepted standard single-mode fiber of optical fiber telecommunications system is larger, is 10.4 microns.If this standard single-mode fiber is direct and the photon chip coupling, owing to mould field mismatch is brought larger added losses, thereby make the insertion loss of device can't satisfy commercial requirement.
At electronic technology field, the history that discrete device develops into integrated circuit has changed the electronic industry production model.Equally, at optical technical field, at present all kinds of optical elements of single form move towards the road of following integrated optics, also will greatly change current traditional optical Classification, and the exploitation of military affairs and civil information system is exerted far reaching influence.The forward position achievement of the subjects such as solid state physics, materialogy, waveguide optical and microfabrication that planar optical waveguide device is integrated, adopt semiconductor technology to make the planar optical waveguide chip, the function of the discrete optical element of tradition is integrated into same optical substrate, realize the beam splitting of light signal/the close functions such as bundle, conversion, light filtering, have compact conformation, volume is little, antijamming capability is strong, consistency of performance is good, reliable and stable, being convenient to the outstanding advantages such as automatic batch production, is the Some Questions To Be Researched of present optoelectronic device development.The photonic waveguide chip adopts the semiconductor technologies such as Material growth, photoetching, etching, diffusion to make, the waveguide cross section mainly contains rectangle, ridged, diffused etc., such as Fig. 1, Fig. 2, shown in Figure 3, its mould field shape is generally circular or irregular ellipse, such as Fig. 4, shown in Figure 5.
At C-band, the mode field diameter of single-mode fiber is 10.4 microns circular light spot, and generally, the mould field of photon chip waveguide is less, for example only have several 2,3 microns or even sub-micrometer scale, if and be ridge waveguide structure, its mould field distribution is irregular geometric configuration, the mould field on x, the y direction is in different size.If do not adopt certain moduli field transformational structure to realize the coupling of optical fiber and photon chip, then owing to mould field mismatch is brought larger added losses.If only consider mould field mismatch, the coupling efficiency η when single-mode fiber directly is coupled with photon chip can be expressed as:
In the formula
w
x, w
yBe respectively x, y direction basic mode spot size; A is the spot size of single-mode fiber.
From following formula as can be known, has different coupling efficiencies between the mould field of different mode field diameters, not isotype shape.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of mould field of standard single-mode fiber that can make identical with the mould field of photon chip waveguide, thereby eliminate the photon chip of the added losses that bring owing to mould field mismatch and the coupling process of optical fiber.
The technical solution adopted in the present invention is: the coupling process of a kind of photon chip and optical fiber, include photon chip, be separately positioned on the input end of photon chip and single mode input optical fibre and the single-mode output optical fiber of output terminal, be respectively arranged with the mould field converter between described photon chip and described single mode input optical fibre and the single-mode output optical fiber.
Described mould field converter is that the method that adopts fused biconical taper is drawn respectively the fused biconical taper optical fiber of the cone-shaped body structure that taper becomes at the end with photon chip is coupled of single mode input optical fibre and single-mode output optical fiber, wherein, the vertex of a cone of described cone-shaped body structure is the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre and single-mode output optical fiber connection.
Described mould field converter is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single mode input optical fibre and single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection.
The mould field converter that arranges between described photon chip and the described single mode input optical fibre is the fused biconical taper optical fiber that the end that adopts the method for fused biconical taper to be coupled at single mode input optical fibre and photon chip draws the cone-shaped body structure that taper becomes, wherein, the vertex of a cone of described cone-shaped body structure is the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre connection; The field converter that arranges between described photon chip and the described single-mode output optical fiber is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection.
The mould field converter that arranges between described photon chip and the described single mode input optical fibre is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection; The field converter that arranges between described photon chip and the described single-mode output optical fiber be the end that adopts the method for fused biconical taper to be coupled at single mode input optical fibre and photon chip to draw the vertex of a cone of the described cone-shaped body structure of fused biconical taper optical fiber of the cone-shaped body structure that taper becomes be the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre connection.
Described mould field converter with the be coupled taper angle of end of photon chip be arbitrarily angled in 0 to 180 °.
The lens combination that described mould field converter is comprised of N lens, wherein N is the integer more than or equal to 1.
Described mould field converter is to consist of by the discrete lens that is coupled with photon chip with sphere lens optical fiber that described discrete lens is joined, and the other end of described sphere lens optical fiber connects single mode input optical fibre/single-mode output optical fiber.
The end face of described photon chip, fused biconical taper optical fiber, lens fiber and lens has the angle of inclination of setting.
Described photon chip is to adopt the photon integrated technology to make, and waveguide material is a kind of in lithium niobate, III-V family semiconducting compound, silicon dioxide, SOI, polymkeric substance and the glass.
The coupling process of photon chip of the present invention and optical fiber, to adopt I/O optical fiber+fused biconical taper optical fiber or lens fiber or lens combination and photon chip coupling, photon chip is the photon integrated waveguide chip, thereby solves the mould field mismatch problems of waveguide chip and optical fiber.Has following features: adopt fused biconical taper optical fiber, lens fiber or lens combination can convenient realize the mould field conversion of arbitrary shape, less mode field diameter feasiblely.
Description of drawings
Fig. 1 is the rectangular waveguide cross section of photon chip;
Fig. 2 is the ridge waveguide cross section of photon chip;
Fig. 3 is the diffused waveguide cross section of photon chip;
Fig. 4 is the structural representation of fused biconical taper optical fiber;
Fig. 5 is the structural representation of lens fiber;
Fig. 6 is the structural representation of sphere lens optical fiber;
Fig. 7 is the schematic diagram that is coupled with fused biconical taper optical fiber and waveguide chip;
Fig. 8 is the schematic diagram that is coupled with lens fiber and waveguide chip;
Fig. 9, Figure 10 are the schematic diagram that is coupled with fused biconical taper optical fiber, lens fiber and waveguide chip;
Figure 11 is the schematic diagram that is coupled with discrete lens group and waveguide chip;
Figure 12 is the schematic diagram that is coupled with sphere lens optical fiber, sequential Stereoscopic lens and waveguide chip.
Wherein:
1: waveguide core layer 2: under-clad layer/substrate
3: top covering 4: cushion
6: photon chip; 7,8: the sequential Stereoscopic lens
9: single-mode fiber 10: sphere lens optical fiber
E: the top bending radius of the taper angle R-lens fiber of fused biconical taper optical fiber or lens fiber
Embodiment
Make a detailed description below in conjunction with embodiment and the accompanying drawing coupling process to photon chip of the present invention and optical fiber.
The added losses that bring in order to solve present existing mould field mismatch, the coupling process of photon chip of the present invention and optical fiber, employing fused biconical taper optical fiber, lens fiber or lens combination realize the mould field coupling between single-mode fiber and photon chip waveguide.Fused biconical taper optical fiber is to use the method for fused biconical taper that single-mode fiber is drawn into taper, and the one end is the larger core diameter of single-mode fiber, and the other end is less core diameter, and the centre is tapered zone, as shown in Figure 6; Lens fiber adopts laser or attrition process, and the one end is the larger core diameter of single-mode fiber, and the other end is taper sphere (as shown in Figure 7), wedge shape cylinder, parabola or other arbitrary shape end face; Lens combination refers to discrete body lens or micro-lensed fiber.
Such as Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, shown in Figure 12, the coupling process of photon chip of the present invention and optical fiber, include photon chip, be separately positioned on the input end of photon chip and single mode input optical fibre and the single-mode output optical fiber of output terminal, it is characterized in that, be respectively arranged with the mould field converter between described photon chip and described single mode input optical fibre and the single-mode output optical fiber.
Such as Fig. 4, shown in Figure 7, described mould field converter is that the method that adopts fused biconical taper is drawn respectively the fused biconical taper optical fiber of the cone-shaped body structure that taper becomes at the end with photon chip is coupled of single mode input optical fibre and single-mode output optical fiber, wherein, the vertex of a cone of described cone-shaped body structure is the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre and single-mode output optical fiber connection.That is, at input end, from the circular large mould field of single-mode fiber input through fused biconical taper optical fiber after, its mould field is converted to the circular little mould field that the mould field with waveguide is complementary; At output terminal, from the circular little mould field of waveguide output through fused biconical taper optical fiber after, the circular large mould field that its mould field is converted to single-mode fiber is complementary.
Described mould field converter with the be coupled taper angle of end of photon chip be arbitrarily angled in 0 to 180 °, with the conversion between not isotype size of coupling.The taper angle E that the present embodiment adopts is 50 °.
Such as Fig. 5, shown in Figure 8, described mould field converter is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single mode input optical fibre and single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection.That is, at input end, through behind the lens fiber, its mould field is converted to the little mould field of the circle that the mould field with waveguide is complementary/ellipse or other shape from the circular large mould field of single-mode fiber input; At output terminal, through behind the lens fiber, the circular greatly mould field that its mould field is converted to single-mode fiber is complementary from the little mould field of the circle of waveguide output/ellipse or other shape.
Described mould field converter with the be coupled taper angle of end of photon chip be arbitrarily angled in 0 to 180 °, radius of curvature R is arbitrary value, with the conversion between not isotype size of coupling.The taper angle E that the present embodiment adopts is that 75 °, radius of curvature R are 6 microns.
Such as Fig. 4, Fig. 5, shown in Figure 9, the mould field converter that arranges between described photon chip and the described single mode input optical fibre is the fused biconical taper optical fiber that the end that adopts the method for fused biconical taper to be coupled at single mode input optical fibre and photon chip draws the cone-shaped body structure that taper becomes, wherein, the vertex of a cone of described cone-shaped body structure is the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre connection; The field converter that arranges between described photon chip and the described single-mode output optical fiber is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection.That is, at input end, from the circular large mould field of single-mode fiber input through fused biconical taper optical fiber after, its mould field is converted to the circular little mould field that the mould field with waveguide is complementary; At output terminal, through behind the lens fiber, the circular large mould field that its mould field is converted to single-mode fiber is complementary from the circular little mould field of waveguide output.
The be coupled taper angle of end of described mould field converter and photon chip is arbitrarily angled in 0 to 180 °, and radius of curvature R is arbitrary value, with the conversion between not isotype size of coupling.The taper angle E of the fused biconical taper optical fiber that the present embodiment adopts is 50 °; The taper angle E of lens fiber is that 75 °, radius of curvature R are 6 microns.
Such as Fig. 4, Fig. 5, shown in Figure 10, the mould field converter that arranges between described photon chip and the described single mode input optical fibre is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection; The field converter that arranges between described photon chip and the described single-mode output optical fiber be the end that adopts the method for fused biconical taper to be coupled at single mode input optical fibre and photon chip to draw the vertex of a cone of the described cone-shaped body structure of fused biconical taper optical fiber of the cone-shaped body structure that taper becomes be the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre connection.That is, at input end, through behind the lens fiber, its mould field is converted to the circular little mould field that the mould field with waveguide is complementary from the circular large mould field of single-mode fiber input; At output terminal, from the circular little mould field of waveguide output through fused biconical taper optical fiber after, the circular large mould field that its mould field is converted to single-mode fiber is complementary.
Described mould field converter with the be coupled taper angle of end of photon chip be arbitrarily angled in 0 to 180 °, radius of curvature R is arbitrary value, with the conversion between not isotype size of coupling.The taper angle E of the lens fiber that the present embodiment adopts is that 75 °, radius of curvature R are 6 microns; The taper angle E of fused biconical taper optical fiber is 50 °.
As shown in figure 11, the lens combination that described mould field converter is comprised of N lens, wherein N is the integer more than or equal to 1.That is, at input end, through after the lens combination, its mould field is converted to the little mould field of the circle that the mould field with waveguide is complementary/ellipse or other shape from the circular large mould field of single-mode fiber input; At output terminal, through after the lens combination, the circular greatly mould field that its mould field is converted to single-mode fiber is complementary from the little mould field of the circle of waveguide output/ellipse or other shape.In the present embodiment: sequential Stereoscopic lens 7,8 all adopt C-Lens, the parameter of lens 7: length 4.3mm, radius-of-curvature 1.9mm, the parameter of lens 8: length 2.25mm, radius-of-curvature 0.95mm.This lens combination can realize the mode field diameter of 10 microns of standard single-mode fibers is converted to 5 microns, thereby realizes mating with the mode field diameter of photon chip waveguide.Certainly, those skilled in the art knows at an easy rate, and the length of this C-Lens, radius-of-curvature also can be the values that other technique can realize, with the conversion between not isotype size of coupling; This C-Lens also can be G-Lens, biconvex lens, post lens, shaping prism etc.
As shown in figure 12, described mould field converter is to consist of by the discrete lens that is coupled with photon chip with sphere lens optical fiber that described discrete lens is joined, and the other end of described sphere lens optical fiber connects single mode input optical fibre/single-mode output optical fiber.That is, at input end, from the circular large mould field of single-mode fiber input through sphere lens optical fiber, lens after, its mould field is converted to the little mould field of the circle that the mould field with waveguide is complementary/ellipse or other shape; At output terminal, from the little mould field of the circle of waveguide output/ellipse or other shape through sphere lens optical fiber, lens after, the circular greatly mould field that its mould field is converted to single-mode fiber is complementary.In the present embodiment: sequential Stereoscopic lens 7 adopt C-Lens, the parameter of lens 7: length 4.3mm, and radius-of-curvature 1.9mm, the bulb diameter of sphere lens optical fiber are 260 microns.Certainly, those skilled in the art knows at an easy rate, and the bulb diameter of the length of this C-Lens, radius-of-curvature and sphere lens optical fiber also can be the value that other technique can realize, with the conversion between not isotype size of coupling.
In an embodiment of the present invention, in order to solve light return loss problem, can also make the end face of described photon chip, fused biconical taper optical fiber, lens fiber and lens have the angle of inclination of setting.
Photon chip in the coupling process of photon chip of the present invention and optical fiber, to adopt the photon integrated technology to make, waveguide material is lithium niobate (LiNbO3), III-V family semiconducting compound, silicon dioxide (SiO2), SOI(Silicon-on-Insulator, silicon-on-insulator), a kind of in polymkeric substance (Polymer) and the glass.
Claims (10)
1. the coupling process of a photon chip and optical fiber, include photon chip, be separately positioned on the input end of photon chip and single mode input optical fibre and the single-mode output optical fiber of output terminal, it is characterized in that, be respectively arranged with the mould field converter between described photon chip and described single mode input optical fibre and the single-mode output optical fiber.
2. the coupling process of photon chip according to claim 1 and optical fiber, it is characterized in that, described mould field converter is that the method that adopts fused biconical taper is drawn respectively the fused biconical taper optical fiber of the cone-shaped body structure that taper becomes at the end with photon chip is coupled of single mode input optical fibre and single-mode output optical fiber, wherein, the vertex of a cone of described cone-shaped body structure is the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre and single-mode output optical fiber connection.
3. the coupling process of photon chip according to claim 1 and optical fiber, it is characterized in that, described mould field converter is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single mode input optical fibre and single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection.
4. the coupling process of photon chip according to claim 1 and optical fiber, it is characterized in that, the mould field converter that arranges between described photon chip and the described single mode input optical fibre is the fused biconical taper optical fiber that the end that adopts the method for fused biconical taper to be coupled at single mode input optical fibre and photon chip draws the cone-shaped body structure that taper becomes, wherein, the vertex of a cone of described cone-shaped body structure is the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre connection; The field converter that arranges between described photon chip and the described single-mode output optical fiber is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection.
5. the coupling process of photon chip according to claim 1 and optical fiber, it is characterized in that, the mould field converter that arranges between described photon chip and the described single mode input optical fibre is lens fiber, described lens fiber is an end that is coupled with photon chip that is integrally formed in single-mode output optical fiber, the end that described lens fiber and photon chip are coupled is taper sphere, wedge shape cylinder, parabola, and the core diameter of this end is less than the core diameter of this lens fiber and described single mode input optical fibre and single-mode output optical fiber connection; The field converter that arranges between described photon chip and the described single-mode output optical fiber be the end that adopts the method for fused biconical taper to be coupled at single mode input optical fibre and photon chip to draw the vertex of a cone of the described cone-shaped body structure of fused biconical taper optical fiber of the cone-shaped body structure that taper becomes be the plane, by the core diameter of the formed core diameter in this plane less than this fused biconical taper optical fiber and described single mode input optical fibre connection.
6. according to claim 2 or the coupling process of 3 or 4 described photon chips and optical fiber, it is characterized in that, described mould field converter with the be coupled taper angle of end of photon chip be arbitrarily angled in 0 to 180 °.
7. the coupling process of photon chip according to claim 1 and optical fiber is characterized in that, the lens combination that described mould field converter is comprised of N lens, and wherein N is the integer more than or equal to 1.
8. the coupling process of photon chip according to claim 1 and optical fiber, it is characterized in that, described mould field converter is to consist of by the discrete lens that is coupled with photon chip with sphere lens optical fiber that described discrete lens is joined, and the other end of described sphere lens optical fiber connects single mode input optical fibre/single-mode output optical fiber.
9. according to claim 2 or the coupling process of 3 or 4 or 5 or 7 or 8 described photon chips and optical fiber, it is characterized in that, the end face of described photon chip, fused biconical taper optical fiber, lens fiber and lens has the angle of inclination of setting.
10. the coupling process of photon chip according to claim 1 and optical fiber, it is characterized in that, described photon chip is to adopt the photon integrated technology to make, and waveguide material is a kind of in lithium niobate, III-V family semiconducting compound, silicon dioxide, SOI, polymkeric substance and the glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103793862A CN102866461A (en) | 2012-09-29 | 2012-09-29 | Coupling method of photon chip and optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103793862A CN102866461A (en) | 2012-09-29 | 2012-09-29 | Coupling method of photon chip and optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102866461A true CN102866461A (en) | 2013-01-09 |
Family
ID=47445435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103793862A Pending CN102866461A (en) | 2012-09-29 | 2012-09-29 | Coupling method of photon chip and optical fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102866461A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589136A (en) * | 2016-02-26 | 2016-05-18 | 浙江工业大学 | Optical comb filter based on lithium niobate and tapered filter and production method thereof |
| WO2016145989A1 (en) * | 2015-03-17 | 2016-09-22 | Huawei Technologies Co., Ltd. | Optical alignment using multimode edge couplers |
| CN107533195A (en) * | 2015-04-16 | 2018-01-02 | Asml控股股份有限公司 | Method and apparatus for optical fiber connection |
| US10018789B2 (en) | 2013-12-20 | 2018-07-10 | Huawei Technologies Co., Ltd. | Method and apparatus for coupling optical waveguide to single-mode fiber |
| CN109407208A (en) * | 2018-12-13 | 2019-03-01 | 中国科学院半导体研究所 | The preparation method of optical coupling structure, system and optical coupling structure |
| CN109765656A (en) * | 2019-03-07 | 2019-05-17 | 深圳市艾孚光电科技有限公司 | Expand multimode fibre lens and production method |
| US10514506B2 (en) | 2018-01-31 | 2019-12-24 | Corning Optical Communications LLC | Optical couplers for evanescent coupling of polymer clad fibers to optical waveguides using alignment features |
| US10545290B2 (en) | 2016-01-18 | 2020-01-28 | Corning Incorporated | Polymer clad fiber for evanescent coupling |
| CN110998391A (en) * | 2017-05-19 | 2020-04-10 | 阿道特公司 | Optical coupling structure |
| CN111367019A (en) * | 2020-02-20 | 2020-07-03 | 华东师范大学 | Optical waveguide coupling method based on optical fiber cone |
| CN112630888A (en) * | 2020-12-22 | 2021-04-09 | 光越科技(深圳)有限公司 | Mode field conversion system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508584A (en) * | 2002-12-19 | 2004-06-30 | 中国科学院长春光学精密机械与物理研 | Semiconductor laser and optical fiber coupling method and coupling device thereof |
| CN101013921A (en) * | 2007-01-12 | 2007-08-08 | 东南大学 | Optical path double-in multi-out splitter of plane light wave with redundant channel |
| CN101576635A (en) * | 2009-06-10 | 2009-11-11 | 东南大学 | Coupled structure for nano-photon integrated chip based on Bragg fiber |
| US7643710B1 (en) * | 2008-09-17 | 2010-01-05 | Intel Corporation | Method and apparatus for efficient coupling between silicon photonic chip and optical fiber |
-
2012
- 2012-09-29 CN CN2012103793862A patent/CN102866461A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508584A (en) * | 2002-12-19 | 2004-06-30 | 中国科学院长春光学精密机械与物理研 | Semiconductor laser and optical fiber coupling method and coupling device thereof |
| CN101013921A (en) * | 2007-01-12 | 2007-08-08 | 东南大学 | Optical path double-in multi-out splitter of plane light wave with redundant channel |
| US7643710B1 (en) * | 2008-09-17 | 2010-01-05 | Intel Corporation | Method and apparatus for efficient coupling between silicon photonic chip and optical fiber |
| CN101576635A (en) * | 2009-06-10 | 2009-11-11 | 东南大学 | Coupled structure for nano-photon integrated chip based on Bragg fiber |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10018789B2 (en) | 2013-12-20 | 2018-07-10 | Huawei Technologies Co., Ltd. | Method and apparatus for coupling optical waveguide to single-mode fiber |
| WO2016145989A1 (en) * | 2015-03-17 | 2016-09-22 | Huawei Technologies Co., Ltd. | Optical alignment using multimode edge couplers |
| US10288810B2 (en) | 2015-04-16 | 2019-05-14 | Asml Holding N.V. | Method and apparatus for optical fiber connection |
| CN107533195A (en) * | 2015-04-16 | 2018-01-02 | Asml控股股份有限公司 | Method and apparatus for optical fiber connection |
| CN107533195B (en) * | 2015-04-16 | 2021-01-15 | Asml控股股份有限公司 | Method and apparatus for optical fiber connection |
| US10545290B2 (en) | 2016-01-18 | 2020-01-28 | Corning Incorporated | Polymer clad fiber for evanescent coupling |
| CN105589136A (en) * | 2016-02-26 | 2016-05-18 | 浙江工业大学 | Optical comb filter based on lithium niobate and tapered filter and production method thereof |
| CN105589136B (en) * | 2016-02-26 | 2018-06-01 | 浙江工业大学 | A kind of optical interleaver based on lithium niobate and tapered fiber and preparation method thereof |
| CN110998391A (en) * | 2017-05-19 | 2020-04-10 | 阿道特公司 | Optical coupling structure |
| US10514506B2 (en) | 2018-01-31 | 2019-12-24 | Corning Optical Communications LLC | Optical couplers for evanescent coupling of polymer clad fibers to optical waveguides using alignment features |
| CN109407208A (en) * | 2018-12-13 | 2019-03-01 | 中国科学院半导体研究所 | The preparation method of optical coupling structure, system and optical coupling structure |
| CN109765656A (en) * | 2019-03-07 | 2019-05-17 | 深圳市艾孚光电科技有限公司 | Expand multimode fibre lens and production method |
| CN111367019A (en) * | 2020-02-20 | 2020-07-03 | 华东师范大学 | Optical waveguide coupling method based on optical fiber cone |
| CN112630888A (en) * | 2020-12-22 | 2021-04-09 | 光越科技(深圳)有限公司 | Mode field conversion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102866461A (en) | Coupling method of photon chip and optical fibers | |
| CN102844695B (en) | Multimode optical coupler interfaces | |
| CN107003478B (en) | Optical coupling device | |
| CN108885307B (en) | Optical edge coupler with controllable mode field for photonic chips | |
| CN104931036B (en) | A kind of lithium niobate base hybrid integrated optical fibre gyro optical chip | |
| CN102540505B (en) | SOI (silicon on insulator) based electrooptical modulator based on symmetrical and vertical grating coupling | |
| WO2014093616A4 (en) | Fiber optic coupler array | |
| CN106873076B (en) | A kind of grating coupler | |
| CN105759357B (en) | A kind of close-coupled mode step number converter based on slot type waveguide | |
| CN101915965A (en) | Grating coupler and package structure thereof | |
| CN103487883B (en) | The optical fiber facula conversion coupling mechanism of the passive line waveguide of InP-base and preparation method | |
| US8078021B2 (en) | Waveguide connecting structure | |
| CN103874945B (en) | The equipment for receiving the optical sensor of optical signal from waveguide with multiple | |
| CN103513333A (en) | Blended crossing device for silicon-based nanowire | |
| CN105093408A (en) | Silicon-based nanowire polarization beam splitter based on mode evolution principle | |
| CN108983352A (en) | A kind of end coupling device and preparation method thereof | |
| CN214256319U (en) | 90-degree optical mixer based on silicon-based silicon nitride waveguide | |
| CN113848609A (en) | Photonic integrated coupling structure and photonic integrated device | |
| CN109791251A (en) | Beam spot size converter | |
| CN111239895A (en) | Waveguide coupling structure and light emitter system | |
| CN113267847A (en) | Optical coupling device for coupling multi-core optical fiber and integrated optical chip and preparation method thereof | |
| US9063302B2 (en) | Optical connector and optical device having the same | |
| US20150286002A1 (en) | Multi-Taper Optical Coupler | |
| CN113406751B (en) | Optical fiber and waveguide coupling spot size converter with 850nm waveband | |
| CN111025474B (en) | Silicon waveguide mode coupler covering SU-8 cladding based on refractive index regulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130109 |