CN109186598A - One kind being used for the unpiloted navigation chip of new-energy automobile - Google Patents
One kind being used for the unpiloted navigation chip of new-energy automobile Download PDFInfo
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- CN109186598A CN109186598A CN201811145575.7A CN201811145575A CN109186598A CN 109186598 A CN109186598 A CN 109186598A CN 201811145575 A CN201811145575 A CN 201811145575A CN 109186598 A CN109186598 A CN 109186598A
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- Prior art keywords
- resonant cavity
- modulator
- phasmon
- branch
- unpiloted
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/18—Stabilised platforms, e.g. by gyroscope
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/265—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network constructional aspects of navigation devices, e.g. housings, mountings, displays
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses one kind to be used for the unpiloted navigation chip of new-energy automobile, including pump light source, first medium optical waveguide, second medium optical waveguide, gyro chip based on active cascade surface phasmon resonant cavity, output optical fibre and Photoelectrical detector, the gyro chip based on active cascade surface phasmon resonant cavity includes source level connection surface annular phasmon resonant cavity, tunable coupled output, X branch, modulator and Y-branch, the first medium optical waveguide, directional coupler is connected between second medium optical waveguide, and light field is constituted with the gyro chip of active cascade surface annular phasmon resonant cavity and is coupled.Of the invention is used for the unpiloted navigation chip of new-energy automobile, realize real chip surface phasmon laser gyro, realize the miniaturization of gyro chip, the difficulty that laser light source and modulator integrate in laser gyro system is substantially reduced, the integrated level and stability of laser gyro system are improved.
Description
Technical field
The present invention relates to a kind of chips, and in particular to a kind of navigation chip.
Background technique
New-energy automobile refers to using unconventional vehicle fuel as a source of power, or using conventional vehicle fuel,
Using new vehicle-mounted power plant, the dynamic Control of comprehensive vehicle and the advanced technology of driving aspect, the technical principle elder generation of formation
Into, the automobile with new technology, new construction, on new-energy automobile, it will usually be equipped with all kinds of onboard navigation systems, to automobile into
Row positioning, while guiding drive route, reaches the destination convenient for car owner, and existing onboard navigation system is mainly by touch screen, micro-
Processor and navigation module composition, it is more advanced at present to surely belong to laser gyro chip, laser gyro have dynamic range it is big,
It is the ideal element of inertia system especially strap-down inertial system, largely without the superiority such as acceleration effect, structure be simple
Applied to military and civilian field, the principle of laser gyro is Sagnac effect, and the optical resonance at it intracavitary is at least run
The light wave that a pair is propagated in opposite directions, when it is rotated around sensitive axes relative to inertial space, the frequency of opposite traveling wave generates division, shape
The directly proportional beat frequency in slewing rate, thus the rotation letter that can be obtained laser gyro relative to inertial space by measuring beat frequency
Breath, laser gyro are the one kind for developing comparative maturity in moment gyroscope field, have been widely used for positioning, tracking and navigation etc.
Field, with the continuous development of science and technology, Technology for Modern Equipment system constantly put forward new requirements laser gyro, are miniaturized, are high-precision
Degree, low cost have become the trend of current laser gyro development.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide it is a kind of for new-energy automobile without
The navigation chip that people drives is easy to use.
Technical solution: of the present invention a kind of for the unpiloted navigation chip of new-energy automobile, including pump light
It is source, first medium optical waveguide, second medium optical waveguide, the gyro chip based on active cascade surface phasmon resonant cavity, defeated
Optical fiber and Photoelectrical detector out, the gyro chip based on active cascade surface phasmon resonant cavity includes source cascade list
Face ring shape phasmon resonant cavity, tunable coupled output, X branch, modulator and Y-branch, the first medium optical waveguide,
Directional coupler, and the gyro core with active cascade surface annular phasmon resonant cavity are connected between second medium optical waveguide
Piece constitutes light field coupling, and the active cascade surface annular phasmon resonant cavity includes the first resonant cavity, the second resonant cavity, the
Three resonant cavities and gain media, the pump light source is set to the surface of first medium optical waveguide, second medium optical waveguide, described
First resonant cavity and the second resonant cavity are connected or adjacent at region as the first coupler, first resonant cavity and third resonant cavity
It is connected or adjacent to be the second coupler at region, second resonant cavity and tunable coupled output are connected or adjacent at region
For third coupler, the third resonant cavity and tunable coupled output are connected or adjacent at region as the 4th coupler, institute
It states and is equipped with slit between tunable coupled output, X branch, modulator and Y-branch, the Y-branch output port is through output light
Fibre is connect with Photoelectrical detector.
The active cascade surface annular phasmon resonant cavity, tunable coupled output, X branch, the first modulator,
Second modulator and Y-branch are made of surface plasmon waveguide.
The surface plasmon waveguide includes substrate, metal core layer, top covering and under-clad layer, and the under-clad layer is set to upper
Between covering and substrate, metal core layer is equipped between the under-clad layer and substrate, the under-clad layer is identical with top covering refractive index,
And its contact surface is Raman scattering.
Doped with gain media between the under-clad layer and substrate of the active cascade surface annular phasmon resonant cavity, and
The size of the first resonant cavity in active cascade surface annular phasmon resonant cavity is greater than the second resonant cavity, third resonant cavity
Size, second resonant cavity, the size of third resonant cavity are identical.
The dual-mode laser of the active cascade surface annular phasmon resonant cavity output passes through third coupler, the 4th coupling
Enter the curved surface phasmon waveguide of tunable coupled output, the curved surface phasmon waveguide after clutch coupling
In first metal core layer one end connect with first electrode contact by first electrode lead, the other end passes through second electrode lead
The connection of second electrode contact.
By changing in the first electrode contact, second electrode contact and curved surface phasmon waveguide circuit circuit
Voltage value, adjust the waveguide of curved surface phasmon in the first metal core layer and its temperature of surrounding cladding layers, to third coupler,
4th coupler coupling performance is tuned.
The modulator is Thermo-optical modulator, and the Thermo-optical modulator includes the first modulator and the second modulator, described
Second metal core layer one end of first modulator is connect by third contact conductor with third electrode contacts, and the other end passes through the 4th
Contact conductor is connect with the 4th electrode contacts, third metal core layer one end of second modulator by the 5th contact conductor with
The connection of 5th electrode contacts, the other end are connect by the 6th contact conductor with the 6th electrode contacts, the in first modulator
Third metal core layer is to pass the waveguide core layer of light and the modulator electrode that conducts electricity simultaneously in two metal core layers and the second modulator, the heat
The first top covering and the first under-clad layer in optical modulator are thermoluminescent material.
The pump light source vertical irradiation first medium optical waveguide, second medium optical waveguide, the first medium optical waveguide,
It is single inclined that second medium optical waveguide motivates the gain media in the active cascade surface annular phasmon resonant cavity to be formed in turn
Shake laser, it is described list polarization laser by third coupler, the 4th coupler along tunable coupled output the first metal core
Layer four beam laser of output, the four beams laser passes through X respectively and branches into the first modulator and the second modulator, then passes through Y points
Enter Photoelectrical detector by output optical fibre after branch coupling output.
It is equidistant slit between the tunable coupled output, X branch, modulator and Y-branch, the slit is 0.8
~1.5 μm.
The under-clad layer is connected with top covering by wavy surface, and the gain media is solid state gain medium.
The utility model has the advantages that one kind of the invention is used for the unpiloted navigation chip of new-energy automobile, swashed by pump light source
Encourage dielectric optical waveguide, and then motivate the solid state gain medium in ring resonator covering, ultimately form based on cascade surface etc. from
The laser of excimer resonant cavity, the laser of output have narrow linewidth and a single polarization characteristic, and the transmission optical path in chip by
Surface plasmon waveguide realizes that single polarization transfer characteristics of surface plasmon waveguide can effectively reduce gyro noise, improves
Gyro Precision and stability, active cascade surface annular phasmon resonance-cavity laser, X branch, modulator and Y-branch are integrated
In same chip, real chip surface phasmon laser gyro is realized, improves the stability of gyro, simultaneously
The miniaturization of gyro chip is also achieved, the difficulty that laser light source and modulator integrate in laser gyro system is substantially reduced, mentions
The high integrated level and stability of laser gyro system.
Detailed description of the invention
Fig. 1 is the laser gyro structural schematic diagram based on active cascade surface annular phasmon resonant cavity；
Fig. 2 is surface plasmon waveguide cross section structure schematic diagram；
Fig. 3 is tunable coupled output structural schematic diagram；
Fig. 4 is Thermo-optical modulator structural schematic diagram.
Specific embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
As shown in Figures 1 to 4, one kind of the invention is used for the unpiloted navigation chip of new-energy automobile, including pumping
Light source 1, first medium optical waveguide 2, second medium optical waveguide 3, the gyro core based on active cascade surface phasmon resonant cavity
Piece 42, output optical fibre 4 and Photoelectrical detector 43, the gyro chip 42 based on active cascade surface phasmon resonant cavity include
Source level joins surface annular phasmon resonant cavity 5, tunable coupled output 6, X branch 7, modulator 8 and Y-branch 9, and first is situated between
Be connected with directional coupler 10 between matter optical waveguide 2, second medium optical waveguide 3, and with active cascade surface annular phasmon
The gyro chip of resonant cavity 5 constitutes light field coupling, and active cascade surface annular phasmon resonant cavity 5 includes the first resonant cavity
11, the second resonant cavity 12, third resonant cavity 13 and gain media, pump light source 1 are set to first medium optical waveguide 2, second medium
The surface of optical waveguide 3, the first resonant cavity 11 and the second resonant cavity 12 are connected or adjacent at region as the first coupler 14, and first
Resonant cavity 11 and third resonant cavity 13 are connected or adjacent to be the second coupler 15 at region, and the second resonant cavity 12 is coupled with tunable
Output end 6 is connected or adjacent to be third coupler 16 at region, and third resonant cavity 13 connect or leans on tunable coupled output 6
It is the 4th coupler 17 near field, slit, Y is equipped between tunable coupled output 6, X branch 7, modulator 8 and Y-branch 9
9 output port of branch is connect through output optical fibre 4 with Photoelectrical detector 43.
Active cascade surface annular phasmon resonant cavity 5, tunable coupled output 6, X branch 7, the first modulator
18, the second modulator 19 and Y-branch 9 are made of surface plasmon waveguide.
Surface plasmon waveguide includes substrate 20, metal core layer 21, top covering 22 and under-clad layer 23, and under-clad layer 23 is set to
Between top covering 22 and substrate 20, metal core layer 21,22 folding of under-clad layer 23 and top covering are equipped between under-clad layer 23 and substrate 20
It is identical to penetrate rate, and its contact surface is Raman scattering.
Doped with gain media between the under-clad layer 23 and substrate 20 of active cascade surface annular phasmon resonant cavity 5,
And the size of the first resonant cavity 11 in active cascade surface annular phasmon resonant cavity 5 is greater than the second resonant cavity 12, third
The size of resonant cavity 13, the second resonant cavity 12, the size of third resonant cavity 13 are identical.
The dual-mode laser that active cascade surface annular phasmon resonant cavity 5 exports passes through third coupler 16, the 4th coupling
Clutch coupling 17 enters the curved surface phasmon waveguide 24 of tunable coupled output 6, curved surface phasmon wave after closing
It leads 25 one end of the first metal core layer in 24 to connect by first electrode lead 26 with first electrode contact 27, the other end passes through the
The connection of two contact conductors, 28 second electrode contact 29.
By changing first electrode contact 27,24 circuit loop of second electrode contact 29 and the waveguide of curved surface phasmon
Middle voltage value adjusts the first metal core layer 25 and its temperature of surrounding cladding layers in curved surface phasmon waveguide 24, to third
Coupler 16,17 coupling performance of the 4th coupler are tuned.
Modulator 8 is Thermo-optical modulator, and Thermo-optical modulator includes the first modulator 18 and the second modulator 19, the first modulation
30 one end of the second metal core layer of device 18 is connect by third contact conductor 31 with third electrode contacts 32, and the other end passes through the 4th
Contact conductor 33 is connect with the 4th electrode contacts 34, and 35 one end of third metal core layer of the second modulator 19 is drawn by the 5th electrode
Line 36 is connect with the 5th electrode contacts 37, and the other end is connect by the 6th contact conductor 38 with the 6th electrode contacts 39, and first adjusts
The waveguide core layer and biography to pass light simultaneously of third metal core layer 35 in second metal core layer 30 and the second modulator 19 in device 18 processed
Electrical modulation electrode, the first top covering 40 and the first under-clad layer 41 in Thermo-optical modulator are thermoluminescent material.
1 vertical irradiation first medium optical waveguide 2 of pump light source, second medium optical waveguide 3, first medium optical waveguide 2, second
Dielectric optical waveguide 3 motivates the gain media in active cascade surface annular phasmon resonant cavity 5 to form single polarization laser in turn,
Single polarization laser is defeated along the first metal core layer 25 of tunable coupled output 6 by third coupler 16, the 4th coupler 17
Four beam laser out, four beam laser pass through X branch 7 respectively and enter the first modulator 18 and the second modulator 19, then pass through Y-branch 9
Enter Photoelectrical detector 43 by output optical fibre 4 after coupling output.
It is equidistant slit between tunable coupled output 6, X branch 7, modulator 8 and Y-branch 9, slit is 0.8~1.5
μm。
Under-clad layer 22 is connected with top covering 23 by wavy surface, and gain media is solid state gain medium.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (10)
1. one kind is used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: including pump light source, first medium light
Waveguide, second medium optical waveguide, the gyro chip based on active cascade surface phasmon resonant cavity, output optical fibre and photoelectricity are visited
Instrument is surveyed, the gyro chip based on active cascade surface phasmon resonant cavity includes source level connection surface annular phasmon
Resonant cavity, tunable coupled output, X branch, modulator and Y-branch, the first medium optical waveguide, second medium optical waveguide
Between be connected with directional coupler, and constitute light field coupling with the gyro chip of active cascade surface annular phasmon resonant cavity
It closes, the active cascade surface annular phasmon resonant cavity includes the first resonant cavity, the second resonant cavity, third resonant cavity and increasing
Beneficial medium, the pump light source be set to first medium optical waveguide, second medium optical waveguide surface, first resonant cavity and
Second resonant cavity is connected or adjacent at region be the first coupler, and first resonant cavity and third resonant cavity are connected or adjacent to area
It is the second coupler at domain, second resonant cavity is connected or adjacent at region couple for third with tunable coupled output
Device, the third resonant cavity and tunable coupled output are connected or adjacent at region as the 4th coupler, the tunable coupling
It closes and is equipped with slit between output end, X branch, modulator and Y-branch, the Y-branch output port is visited through output optical fibre and photoelectricity
Survey instrument connection.
2. according to claim 1 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: described active
Cascade surface annular phasmon resonant cavity, tunable coupled output, X branch, the first modulator, the second modulator and Y points
Branch is made of surface plasmon waveguide.
3. according to claim 2 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: the surface
Phasmon waveguide includes substrate, metal core layer, top covering and under-clad layer, and the under-clad layer is set between top covering and substrate,
Metal core layer is equipped between the under-clad layer and substrate, the under-clad layer is identical with top covering refractive index, and its contact surface is to draw
Graceful scattering.
4. according to claim 1 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: described active
Doped with gain media between the under-clad layer and substrate of cascade surface annular phasmon resonant cavity, and active cascade surface is annular
The size of the first resonant cavity in phasmon resonant cavity is greater than the size of the second resonant cavity, third resonant cavity, and described second is humorous
Chamber, the size of third resonant cavity of shaking are identical.
5. according to claim 1 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: described active
The dual-mode laser of cascade surface annular phasmon resonant cavity output can by entering after third coupler, the coupling of the 4th coupler
Tune the curved surface phasmon waveguide of coupled output, the first metal core layer in the curved surface phasmon waveguide
One end is connect by first electrode lead with first electrode contact, and the other end is connected by second electrode lead second electrode contact
It connects.
6. according to claim 5 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: pass through change
Voltage value in the first electrode contact, second electrode contact and curved surface phasmon waveguide circuit circuit adjusts bending
First metal core layer and its temperature of surrounding cladding layers in surface plasmon waveguide couple third coupler, the 4th coupler
Performance is tuned.
7. according to claim 1 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: the modulation
Device is Thermo-optical modulator, the Thermo-optical modulator include the first modulator and the second modulator, the second of first modulator
Metal core layer one end is connect by third contact conductor with third electrode contacts, and the other end passes through the 4th contact conductor and the 4th electricity
Third metal core layer one end of the connection of pole contact, second modulator is connected by the 5th contact conductor and the 5th electrode contacts
It connects, the other end is connect by the 6th contact conductor with the 6th electrode contacts, the second metal core layer and the in first modulator
Third metal core layer is to pass the waveguide core layer of light and conduct electricity modulator electrode simultaneously in two modulators, the in the Thermo-optical modulator
One top covering and the first under-clad layer are thermoluminescent material.
8. according to claim 1 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: the pumping
Light source vertical irradiation first medium optical waveguide, second medium optical waveguide, the first medium optical waveguide, second medium optical waveguide into
And the gain media in the active cascade surface annular phasmon resonant cavity is motivated to form single polarization laser, single polarization
Laser exports four beam laser, institute along the first metal core layer of tunable coupled output by third coupler, the 4th coupler
State four beam laser and pass through X respectively and branch into the first modulator and the second modulator, then by after Y-branch coupling output by defeated
Optical fiber enters Photoelectrical detector out.
9. according to claim 1 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: described adjustable
It is equidistant slit between humorous coupled output, X branch, modulator and Y-branch, the slit is 0.8~1.5 μm.
10. according to claim 4 be used for the unpiloted navigation chip of new-energy automobile, it is characterised in that: under described
Covering is connected with top covering by wavy surface, and the gain media is solid state gain medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811145575.7A CN109186598A (en) | 2018-09-29 | 2018-09-29 | One kind being used for the unpiloted navigation chip of new-energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811145575.7A CN109186598A (en) | 2018-09-29 | 2018-09-29 | One kind being used for the unpiloted navigation chip of new-energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109186598A true CN109186598A (en) | 2019-01-11 |
Family
ID=64907921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811145575.7A Withdrawn CN109186598A (en) | 2018-09-29 | 2018-09-29 | One kind being used for the unpiloted navigation chip of new-energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109186598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931931A (en) * | 2019-03-29 | 2019-06-25 | 南京博内特信息科技有限公司 | A kind of reckoning chip of Internet of Things pilotless automobile |
| CN110186448A (en) * | 2019-05-09 | 2019-08-30 | 南京博内特信息科技有限公司 | A kind of ring laser gyroscope for unmanned navigation chip |
| CN113280804A (en) * | 2021-05-19 | 2021-08-20 | 北京航空航天大学 | Nano-photon gyroscope |
-
2018
- 2018-09-29 CN CN201811145575.7A patent/CN109186598A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931931A (en) * | 2019-03-29 | 2019-06-25 | 南京博内特信息科技有限公司 | A kind of reckoning chip of Internet of Things pilotless automobile |
| CN110186448A (en) * | 2019-05-09 | 2019-08-30 | 南京博内特信息科技有限公司 | A kind of ring laser gyroscope for unmanned navigation chip |
| CN113280804A (en) * | 2021-05-19 | 2021-08-20 | 北京航空航天大学 | Nano-photon gyroscope |
| CN113280804B (en) * | 2021-05-19 | 2023-02-17 | 北京航空航天大学 | Nano-photon gyroscope |
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Application publication date: 20190111 |