CN112864781A - Communication waveband laser system and method for cold atom interferometer - Google Patents
Communication waveband laser system and method for cold atom interferometer Download PDFInfo
- Publication number
- CN112864781A CN112864781A CN202110026610.9A CN202110026610A CN112864781A CN 112864781 A CN112864781 A CN 112864781A CN 202110026610 A CN202110026610 A CN 202110026610A CN 112864781 A CN112864781 A CN 112864781A
- Authority
- CN
- China
- Prior art keywords
- unit
- laser
- frequency
- electro
- light
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000001675 atomic spectrum Methods 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 238000001069 Raman spectroscopy Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 208000016758 Congenital fibrosis of extraocular muscles Diseases 0.000 claims description 3
- ORUCDOXAKFCOJF-UHFFFAOYSA-N [O-2].[Mg+2].[Li+] Chemical compound [O-2].[Mg+2].[Li+] ORUCDOXAKFCOJF-UHFFFAOYSA-N 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000010354 integration Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1123—Q-switching
- H01S3/115—Q-switching using intracavity electro-optic devices
Abstract
The invention relates to a communication waveband laser system and a method for a cold atom interferometer. The laser emitting device based on the single laser is easy to operate and adjust and high in integration level; the all-fiber connection is adopted, the vibration resistance is excellent, the stability is good, and the all-fiber connection is particularly suitable for the external field measurement and the application of a cold atom interferometer.
Description
Technical Field
The invention belongs to the technical field of inertial navigation, relates to a communication waveband laser system and a method, and particularly relates to a communication waveband laser system and a method for a cold atom interferometer.
Background
Since the realization of cold atom interferometers by the junkerer group in 1991, atom interference inertial measurement technology is gradually mature, and atomic inertial sensors with high sensitivity and high precision, basic physics, engineering application and other fields are widely applied. At present, the atomic interference type absolute gravimeter has the measurement precision of 10-9g, the zero-offset stability of the atomic interference type gyroscope can reach 7 multiplied by 10-5 degrees/h, and the measurement resolution of the atomic accelerometer can reach 10-11 g.
In order to meet the long-term stability and measurement accuracy of external field measurement, a set of stable laser control system is very necessary. The traditional cold atom interferometer is generally based on two or three lasers, and generates lasers with different functions such as cooling light, re-pumping light, detecting light, pushing light, Raman light and the like through the technologies such as a frequency shift device, an optical phase-locked loop and the like. The whole volume is huge, optical devices are numerous, the structure is complex, and the use in an external field environment is not facilitated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a communication waveband laser system and a method for a cold atom interferometer, which are easy to operate and adjust and high in integration level.
The invention solves the practical problem by adopting the following technical scheme:
a communication waveband laser system for a cold atom interferometer comprises a laser unit (1), a light splitting unit (2), a frequency locking unit (5), a first electro-optic modulation unit (3), a second electro-optic modulation unit (6), a first frequency doubling unit (4), a second frequency doubling unit (8), a laser power amplification unit (7) and a power distribution unit (9).
The output light of the laser unit (1) is divided into two beams by the light splitting unit (2), wherein one beam of light is input into the first frequency doubling unit (3) and is used for generating laser with the wavelength near 780 nm; the signal is input into a frequency locking unit (5) after passing through a first electro-optical modulation unit (4) and is used for adjusting the position of a frequency locking frequency point; the output end of the frequency locking unit (5) is connected with a current/voltage modulation port of the laser unit (1) and is used for feeding back an atomic spectrum signal to the laser unit (1) for frequency locking;
the other beam of laser of the light splitting unit (2) is input to a laser power amplifying unit (7) through a second electro-optical modulation unit (6) and is used for providing the laser power required by the system; the output laser passes through a second frequency doubling unit (8) and then is connected with a power distribution unit (9) for generating all laser frequencies and laser power for cold atom interference.
The first electro-optical modulation unit (3) and the second electro-optical modulation unit (6) are light type electro-optical modulation crystals FEOM.
Moreover, the first frequency doubling unit (3) and the second frequency doubling unit (8) are made of frequency doubling materials of periodically poled magnesium oxide lithium niobate crystal MgO: PPLN.
The power amplification unit (7) is an erbium-doped fiber amplifier in the communications band 1560 nm.
And the laser unit (1) is a distributed feedback laser which emits single-frequency laser near a communication waveband 1560 nm.
Moreover, the frequency locking unit (5) adopts a Modulation Transfer Spectrum (MTS) to obtain an atomic spectrum signal, and adopts a proportional-integral-derivative (PID) to feed the atomic spectrum signal back to the laser unit (1) for frequency locking;
moreover, the power distribution unit (9) adjusts the light splitting ratio by the light splitting device, and controls the corresponding frequency shift and power change by the acousto-optic modulator AOM 1;
and the frequency locking unit (5) is connected with the laser unit (1) through a circuit cable, and the other units are connected through single-mode polarization-maintaining optical fibers.
A method for realizing a communication waveband laser system for a cold atom interferometer comprises the following steps:
The invention has the advantages and beneficial effects that:
1. the laser emitting device based on the single laser is easy to operate and adjust and high in integration level; the all-fiber connection is adopted, the vibration resistance is excellent, the stability is good, and the all-fiber connection is particularly suitable for the external field measurement and the application of a cold atom interferometer.
2. The distributed feedback laser based on the communication band has the advantages of mature laser amplification, frequency doubling and other technologies and stable structure.
3. The invention is applied to the technical field of cold atom interference inertia measurement, such as cold atom interference gravimeters, gyroscopes, accelerometers and gravity gradiometers, and can also be applied to cold atom related experiments.
Drawings
FIG. 1 is a system configuration diagram of the present invention;
FIG. 2 is a schematic diagram of the laser frequency composition of the present invention;
description of reference numerals:
1-a laser unit;
2-a light splitting unit;
3-a first electro-optical modulation unit,
4-a first frequency doubling unit;
5-a frequency locking unit;
6-a second electro-optical modulation unit;
7-a laser power amplification unit;
8-a second frequency multiplying unit;
9-power distribution unit.
Detailed Description
The embodiments of the invention will be described in further detail below with reference to the accompanying drawings:
a communication waveband laser system for a cold atom interferometer is shown in fig. 1 and comprises a laser unit (1), a light splitting unit (2), a frequency locking unit (5), a first electro-optical modulation unit (3), a second electro-optical modulation unit (6), a first frequency doubling unit (4), a second frequency doubling unit (8), a laser power amplification unit (7) and a power distribution unit (9).
The output light of the laser unit (1) is divided into two beams by the light splitting unit (2), wherein one beam of light is input into the first frequency doubling unit (3) and is used for generating laser with the wavelength near 780 nm; the signal is input into a frequency locking unit (5) after passing through a first electro-optical modulation unit (4) and is used for adjusting the position of a frequency locking frequency point; the output end of the frequency locking unit (5) is connected with a current/voltage modulation port of the laser unit (1) and is used for feeding back an atomic spectrum signal to the laser unit (1) for frequency locking;
the other beam of laser of the light splitting unit (2) is input to a laser power amplifying unit (7) through a second electro-optical modulation unit (6) and is used for providing the laser power required by the system; the output laser passes through a second frequency doubling unit (8) and then is connected with a power distribution unit (9) for generating all laser frequencies and laser power for cold atom interference.
In this embodiment, the first electro-optical modulation unit (3) and the second electro-optical modulation unit (6) are optical electro-optical modulation crystals (FEOM).
In this embodiment, the first frequency doubling unit (3) and the second frequency doubling unit (8) are frequency doubling materials of periodically poled lithium magnesium oxide niobate crystal (MgO: PPLN).
In this embodiment, the power amplification unit (7) is an erbium-doped fiber amplifier in the communications band 1560 nm.
In this embodiment, the laser unit (1) is a distributed feedback laser, and emits a single-frequency laser near a communication band 1560 nm.
In the embodiment, the frequency locking unit (5) obtains an atomic spectrum signal by using a Modulation Transfer Spectrum (MTS), and feeds the atomic spectrum signal back to the laser unit (1) for frequency locking by using a proportional-integral-derivative (PID);
in the embodiment, the power distribution unit (9) adjusts the light splitting ratio by a light splitting device (a fiber splitter, a space optical device and the like), and controls corresponding frequency shift and power change by an acousto-optic modulator (AOM 1);
in this embodiment, the frequency locking unit (5) and the laser unit (1) are connected by a circuit cable, and the other units are connected by a single-mode polarization-maintaining fiber.
A method for realizing a communication waveband laser system for a cold atom interferometer comprises the following steps:
In the atomic cooling and capturing stage: setting the modulation frequency omega1Setting the modulation frequency ω to 1.132GHz26.58GHz, produced rubidium-87D 2Line F2 → F3 detuned 12MHz cooling light; generating a pump light frequency resonant to rubidium-87D 2 line F ═ 1 → F' ═ 2;
in the cold atom interference stage: setting the modulation frequency omega1Setting the modulation frequency omega at 2GHz2Generating a pair of raman lasers coupling F2 and F1 at 6.834 GHz;
and a light detection stage: setting the modulation frequency omega1At 1.12GHz, a probe laser resonating at rubidium-87D 2 line F2 → F' 3 is generated.
It should be emphasized that the examples described herein are illustrative and not restrictive, and thus the present invention includes, but is not limited to, those examples described in this detailed description, as well as other embodiments that can be derived from the teachings of the present invention by those skilled in the art and that are within the scope of the present invention.
Claims (9)
1. A communication waveband laser system for a cold atom interferometer, characterized by: the laser frequency-locked loop comprises a laser unit (1), a light splitting unit (2), a frequency locking unit (5), a first electro-optic modulation unit (3), a second electro-optic modulation unit (6), a first frequency doubling unit (4), a second frequency doubling unit (8), a laser power amplification unit (7) and a power distribution unit (9).
The output light of the laser unit (1) is divided into two beams by the light splitting unit (2), wherein one beam of light is input into the first frequency doubling unit (3) and is used for generating laser with the wavelength near 780 nm; the signal is input into a frequency locking unit (5) after passing through a first electro-optical modulation unit (4) and is used for adjusting the position of a frequency locking frequency point; the output end of the frequency locking unit (5) is connected with a current/voltage modulation port of the laser unit (1) and is used for feeding back an atomic spectrum signal to the laser unit (1) for frequency locking;
the other beam of laser of the light splitting unit (2) is input to a laser power amplifying unit (7) through a second electro-optical modulation unit (6) and is used for providing the laser power required by the system; the output laser passes through a second frequency doubling unit (8) and then is connected with a power distribution unit (9) for generating all laser frequencies and laser power for cold atom interference.
2. The communications band laser system for a cold atom interferometer of claim 1, wherein: the first electro-optical modulation unit (3) and the second electro-optical modulation unit (6) are light type electro-optical modulation crystals FEOM.
3. The communications band laser system for a cold atom interferometer of claim 1, wherein: the first frequency doubling unit (3) and the second frequency doubling unit (8) are made of frequency doubling materials of periodically poled magnesium oxide lithium niobate crystal MgO: PPLN.
4. The system and method of claim 1 for a cold atom interferometer, wherein: the power amplification unit (7) is an erbium-doped fiber amplifier near a communication waveband 1560 nm.
5. The communications band laser system for a cold atom interferometer of claim 1, wherein: the laser unit (1) is a distributed feedback laser which emits single-frequency laser near a communication waveband 1560 nm.
6. The communications band laser system for a cold atom interferometer of claim 1, wherein: the frequency locking unit (5) obtains an atomic spectrum signal by adopting a Modulation Transfer Spectrum (MTS), and feeds the atomic spectrum signal back to the laser unit (1) for frequency locking by adopting a proportional-integral-differential (PID).
7. The communications band laser system for a cold atom interferometer of claim 1, wherein: the power distribution unit (9) adjusts the light splitting ratio by the light splitting device, and controls corresponding frequency shift and power change by the acousto-optic modulator AOM 1.
8. The communications band laser system for a cold atom interferometer of claim 1, wherein: the frequency locking unit (5) is connected with the laser unit (1) through a circuit cable, and the rest units are connected through single-mode polarization-maintaining optical fibers.
9. A method for realizing a communication waveband laser system for a cold atom interferometer is characterized by comprising the following steps: the method comprises the following steps:
step 1, the laser unit (1) outputs laser with 1560nm wavelength and frequency omega0The first electro-optical modulation unit (2) modulates the frequency to be omega1After being modulated by the first electro-optical modulation unit (2), the laser frequency is omega0±nω1And n is the number of the sideband stages, and the sideband size can be changed by changing the modulation frequency. After being modulated, the frequency of the mixed signal is changed into 2 omega after passing through a first frequency doubling unit (3)0±nω1Then, the signals are sent to a frequency locking unit (5) for locking;
step 2, locking the positive-stage sideband to the rubidium-85D 2 line by using the modulation transfer spectrum frequency locking of the frequency locking unit (5), wherein F is 3 → F is 4, and the modulation frequency is set to be omega1Cooling light, probe light, and blow light are output near 1GHz, and F2 raman laser light and the like are output.
Step 3, the second electro-optical modulation unit (2) modulates the frequency to be omega2After being modulated by the second electro-optical modulation unit (2), the laser frequency is omega0±nω2And n is the sideband progression. The frequency of the electro-optically modulated laser light is changed into 2 omega after passing through a second frequency doubling unit (3)0±nω2Selection of 2 omega0±nω2The sideband is used for generating laser light of re-pumping light and Raman F ═ 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110026610.9A CN112864781A (en) | 2021-01-08 | 2021-01-08 | Communication waveband laser system and method for cold atom interferometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110026610.9A CN112864781A (en) | 2021-01-08 | 2021-01-08 | Communication waveband laser system and method for cold atom interferometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112864781A true CN112864781A (en) | 2021-05-28 |
Family
ID=76001953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110026610.9A Pending CN112864781A (en) | 2021-01-08 | 2021-01-08 | Communication waveband laser system and method for cold atom interferometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112864781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336240A (en) * | 2021-12-28 | 2022-04-12 | 中国人民解放军国防科技大学 | Modularized cold atom interference laser system based on single-frequency fiber laser |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761057A (en) * | 2011-04-26 | 2012-10-31 | 中国科学院福建物质结构研究所 | Intracavity frequency-doubling 780 nm solid laser |
| CN204858271U (en) * | 2015-08-13 | 2015-12-09 | 中国船舶重工集团公司第七一七研究所 | Laser system suitable for can carry atom interferometer |
| CN107069406A (en) * | 2017-04-12 | 2017-08-18 | 中国科学技术大学 | A kind of 671nm laser systems tested for cold atom |
| CN107328355A (en) * | 2017-09-01 | 2017-11-07 | 中国科学院武汉物理与数学研究所 | Integrated optical system for cold atom interferometer |
| CN107959222A (en) * | 2016-10-16 | 2018-04-24 | 华中科技大学 | A kind of atomic interferometer light source suppressed based on sideband |
| CN108225578A (en) * | 2017-12-25 | 2018-06-29 | 中国科学技术大学 | A kind of twin-laser system suitable for cold atom interference accurate measurement |
| CN108592783A (en) * | 2018-06-29 | 2018-09-28 | 中国科学院武汉物理与数学研究所 | Integrated optics system for atomic interferometer |
| CN109301687A (en) * | 2018-11-26 | 2019-02-01 | 中国人民解放军国防科技大学 | Laser automatic frequency stabilization system based on intelligent saturated absorption spectrum identification technology |
| CN110718853A (en) * | 2019-10-23 | 2020-01-21 | 中国人民解放军军事科学院国防科技创新研究院 | Integrated single laser source optical device for movable cold atom interferometer |
| CN110854663A (en) * | 2019-11-19 | 2020-02-28 | 中国船舶重工集团公司第七0七研究所 | Polarization spectrum frequency stabilization system for inhibiting frequency locking zero drift |
| CN111884045A (en) * | 2020-06-02 | 2020-11-03 | 中国科学院西安光学精密机械研究所 | High-stability modulation transfer spectrum frequency stabilization light path device |
-
2021
- 2021-01-08 CN CN202110026610.9A patent/CN112864781A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761057A (en) * | 2011-04-26 | 2012-10-31 | 中国科学院福建物质结构研究所 | Intracavity frequency-doubling 780 nm solid laser |
| CN204858271U (en) * | 2015-08-13 | 2015-12-09 | 中国船舶重工集团公司第七一七研究所 | Laser system suitable for can carry atom interferometer |
| CN107959222A (en) * | 2016-10-16 | 2018-04-24 | 华中科技大学 | A kind of atomic interferometer light source suppressed based on sideband |
| CN107069406A (en) * | 2017-04-12 | 2017-08-18 | 中国科学技术大学 | A kind of 671nm laser systems tested for cold atom |
| CN107328355A (en) * | 2017-09-01 | 2017-11-07 | 中国科学院武汉物理与数学研究所 | Integrated optical system for cold atom interferometer |
| CN108225578A (en) * | 2017-12-25 | 2018-06-29 | 中国科学技术大学 | A kind of twin-laser system suitable for cold atom interference accurate measurement |
| CN108592783A (en) * | 2018-06-29 | 2018-09-28 | 中国科学院武汉物理与数学研究所 | Integrated optics system for atomic interferometer |
| CN109301687A (en) * | 2018-11-26 | 2019-02-01 | 中国人民解放军国防科技大学 | Laser automatic frequency stabilization system based on intelligent saturated absorption spectrum identification technology |
| CN110718853A (en) * | 2019-10-23 | 2020-01-21 | 中国人民解放军军事科学院国防科技创新研究院 | Integrated single laser source optical device for movable cold atom interferometer |
| CN110854663A (en) * | 2019-11-19 | 2020-02-28 | 中国船舶重工集团公司第七0七研究所 | Polarization spectrum frequency stabilization system for inhibiting frequency locking zero drift |
| CN111884045A (en) * | 2020-06-02 | 2020-11-03 | 中国科学院西安光学精密机械研究所 | High-stability modulation transfer spectrum frequency stabilization light path device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336240A (en) * | 2021-12-28 | 2022-04-12 | 中国人民解放军国防科技大学 | Modularized cold atom interference laser system based on single-frequency fiber laser |
| CN114336240B (en) * | 2021-12-28 | 2023-11-21 | 中国人民解放军国防科技大学 | Modularized cold atom interference laser system based on single-frequency fiber laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107328355B (en) | Integrated optical system for cold atom interferometer | |
| Zhang et al. | Angular velocity measurement with improved scale factor based on a wideband-tunable optoelectronic oscillator | |
| Devgan | A review of optoelectronic oscillators for high speed signal processing applications | |
| Li et al. | Tutorial on optoelectronic oscillators | |
| Hosseini et al. | Low-drift optoelectronic oscillator based on a phase modulator in a Sagnac loop | |
| CN110718853A (en) | Integrated single laser source optical device for movable cold atom interferometer | |
| CN102353373B (en) | Double-closed loop locking technology-based resonant optical gyro | |
| CN109066274B (en) | Raman laser optical system based on atomic filter and filtering method thereof | |
| London et al. | Electro-opto-mechanical radio-frequency oscillator driven by guided acoustic waves in standard single-mode fiber | |
| CN207180595U (en) | A kind of integrated Optical devices for cold atom interferometer | |
| Liu et al. | GVD-insensitive stable radio frequency phase dissemination for arbitrary-access loop link | |
| CN109357672A (en) | A method of the bi-directional light based on circulator structure carries microwave resonance system and its detection angular speed | |
| Pan et al. | Passive phase correction for stable radio frequency transfer via optical fiber | |
| CN114336228A (en) | Active frequency stabilizing system and method for all-optical terahertz oscillator | |
| Zhang et al. | High-sensitivity measurement of angular velocity based on an optoelectronic oscillator with an intra-loop Sagnac interferometer | |
| Hu et al. | Multi-node optical frequency dissemination with post automatic phase correction | |
| CN104092491A (en) | Optical frequency comb generating device and method of photoelectric oscillator | |
| CN112864781A (en) | Communication waveband laser system and method for cold atom interferometer | |
| Hu et al. | Passive optical phase stabilization on a ring fiber network | |
| Coomans et al. | Semiconductor ring lasers coupled by a single waveguide | |
| Shoman et al. | Stable and reduced-linewidth laser through active cancellation of reflections without a magneto-optic isolator | |
| Linslal et al. | Implementation of stochastic parallel gradient descent algorithm for coherent beam combining | |
| Shang et al. | Tunable frequency-doubled optoelectronic oscillator based on a phase modulator in a Sagnac loop | |
| Li et al. | All-fiber laser system for all-optical 87 Rb Bose Einstein condensate to space application | |
| CN108489478A (en) | Resonance type optical gyroscope coefficient of phase modulation antihunt means based on multiple harmonic and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |
|
| RJ01 | Rejection of invention patent application after publication |