CN106404176B - A kind of spectrum detection device and method based on integrated device - Google Patents
A kind of spectrum detection device and method based on integrated device Download PDFInfo
- Publication number
- CN106404176B CN106404176B CN201611029407.2A CN201611029407A CN106404176B CN 106404176 B CN106404176 B CN 106404176B CN 201611029407 A CN201611029407 A CN 201611029407A CN 106404176 B CN106404176 B CN 106404176B
- Authority
- CN
- China
- Prior art keywords
- module
- electroabsorption modulator
- main control
- control module
- voltage
- 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.)
- Expired - Fee Related
Links
- 238000001228 spectrum Methods 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000010354 integration Effects 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims abstract description 3
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000003595 spectral effect Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000000474 nursing effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000862 absorption spectrum Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000005699 Stark effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
Abstract
The invention discloses a kind of spectrum detection device and method based on integrated device, detection means includes main control module, bias generator, electroabsorption modulator, signal processing module and analog-to-digital conversion module, and main control module is in series successively with bias generator, electroabsorption modulator, signal processing module and analog-to-digital conversion module.Main control module is also associated with display module and communication module, and display module is used for the working condition and relevant parameter of display device, and communication module is used to the actual spectrum of device conversion and related data being transferred to relevant device by wired or wireless communication agreement.Measuring method is：Step 1: it will treat that light-metering is incided in electroabsorption modulator；Step 2: it is amplified to the level of suitable analog-to-digital conversion module sampling；Step 3: it is transferred to main control module；Step 4: bias voltage is set；Step 5: measure integration spectrum；Step 6: complete test.Beneficial effect：Its small volume, cost is low, can get a lot of applications.
Description
Technical field
The present invention relates to a kind of spectrum detection device and method, more particularly to a kind of spectral detection dress based on integrated device
Put and method.
Background technology
At present, spectral detection is critically important e measurement technology, in multiple fields such as environment, safety, communication, Fibre Optical Sensors all
There is important, integrated low cost, the spectrum detection technique of small size has good development prospect.Passed in communication and optical fiber
Sense field, limited by optical fiber transmission window, wave-length coverage is concentrated mainly in 1260nm to 1650nm wave-length coverage, at this
In individual wave-length coverage, have benefited from the development of optical communications industry, the technology for many detection spectrum occur, such as grating Diffraction Method,
Tunable optic filter method, tunable laser method etc..But the cost of these methods is all higher, and measuring speed is also relatively slow, difficult
To realize the high speed spectral detection of low cost.
The content of the invention
The invention aims to solve, measuring speed is slow in existing spectrum detection technique and cost is high asks
A kind of spectrum detection device and method based on integrated device inscribed and provided.
Spectrum detection device provided by the invention based on integrated device includes main control module, bias generator, electricity and inhaled
Receive modulator, signal processing module and analog-to-digital conversion module, main control module with bias generator, electroabsorption modulator, signal
Reason module and analog-to-digital conversion module are in series successively.
Main control module is also associated with display module and communication module, and display module is used for the working condition and phase of display device
Related parameter, communication module are used to the actual spectrum of device conversion and related data being transferred to by wired or wireless communication agreement
Relevant device.
Bias generator is used to provide reverse bias voltage to electroabsorption modulator；Electroabsorption modulator is used for optical signal
Be converted to electric signal output electric current；Signal processing module is used for the voltage signal that current signal is converted to amplification；Analog-to-digital conversion
Module is used to voltage signal being converted to data signal, and is sent to main control module；Main control module is used to analyze electro-absorption modulation
Device biases and absorbed the curve of light intensity, carries out differential calculation to the curve, can restore actual spectrum, electroabsorption modulator
For multiple quantum trap electroabsorption modulator, bias generator is Dc bias generator, and the bias amplitude of output is 0-100V, mould
Number modular converter uses ADC.
Spectral method of detection provided by the invention based on integrated device, specific method are as described below：
Step 1: will treat that light-metering is incided in electroabsorption modulator, electroabsorption modulator converts optical signals to electric signal
Output current；It is transferred to signal processing module；
Step 2: the current signal that electroabsorption modulator exports is converted to voltage signal by signal processing module, and amplify
To the level of suitable analog-to-digital conversion module sampling；
Step 3: voltage signal is converted to data signal by analog-to-digital conversion module, and it is transferred to main control module；
Step 4: main control module can control bias generator to be arrived in 0V by digital-to-analogue conversion or pulse width modulation
Adjusted between the operating voltage of electroabsorption modulator, bias voltage is set；
Step 5: after main control module sets bias voltage, the voltage after nursing one's health electroabsorption modulator is acquired, and is led to
The relation of electroabsorption modulator voltage and current is crossed, measures integration spectrum；
Step 6: integration spectrum is converted to actual spectrum, completes test by main control module by differential algorithm.
Beneficial effects of the present invention：
Spectrum detection device and method provided by the invention based on integrated device can be realized quickly, inexpensive, corpusculum
Long-pending spectral detection.Due to its small volume, cost is low, Channel Detection in optical communications, and in fiber grating sensing technology
In, it can get a lot of applications.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the schematic flow sheet of the inventive method.
Fig. 3 is optical absorption spectra test result schematic diagram under different bias voltages.
Fig. 4 is a kind of typical signal converter amplifier circuit schematic diagram.
Fig. 5 is luminous intensity and wavelength schematic diagram and photoelectric current and V diagram.
1st, main control module 2, bias generator 3, electroabsorption modulator 4, signal processing module
5th, analog-to-digital conversion module 6, display module 7, communication module.
Embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5：
Spectrum detection device provided by the invention based on integrated device includes main control module 1, bias generator 2, electricity
Absorption modulation device 3, signal processing module 4 and analog-to-digital conversion module 5, main control module 1 and bias generator 2, electroabsorption modulator
3rd, signal processing module 4 and analog-to-digital conversion module 5 are in series successively.
Main control module 1 is also associated with display module 6 and communication module 7, and display module 6 is used for the working condition of display device
And relevant parameter, communication module 7 are used to the actual spectrum of device conversion and related data passing through wired or wireless communication agreement
It is transferred to relevant device.
Bias generator 2 is used to provide reverse bias voltage to electroabsorption modulator 3；Electroabsorption modulator 3 is used for light
Signal is converted to electric signal output electric current；Signal processing module 4 is used for the voltage signal that current signal is converted to amplification；Modulus
Modular converter 5 is used to voltage signal being converted to data signal, and is sent to main control module 1；Main control module 1 is used to analyze electric suction
The curve that modulator 3 biased and absorbed light intensity is received, differential calculation is carried out to the curve, actual spectrum can be restored, electricity is inhaled
Receipts modulator 3 is multiple quantum trap electroabsorption modulator, and bias generator 2 is Dc bias generator, the bias amplitude of output
For 0-100V, analog-to-digital conversion module 5 uses ADC.
Spectral method of detection provided by the invention based on integrated device, specific method are as described below：
Step 1: will treat that light-metering is incided in electroabsorption modulator 3, electroabsorption modulator 3 converts optical signals to telecommunications
Number output current；It is transferred to signal processing module 4；
Step 2: the current signal that electroabsorption modulator 3 exports is converted to voltage signal by signal processing module 4, and put
The big level sampled to suitable analog-to-digital conversion module 5；
Step 3: voltage signal is converted to data signal by analog-to-digital conversion module 5, and it is transferred to main control module 1；
Step 4: main control module 1 can control bias generator 2 in 0V by digital-to-analogue conversion or pulse width modulation
Adjusted between the operating voltage of electroabsorption modulator 3, bias voltage is set；
Step 5: after main control module 1 sets bias voltage, the voltage after nursing one's health electroabsorption modulator 3 is acquired, and
By the relation of the voltage and current of electroabsorption modulator 3, integration spectrum is measured；
Step 6: integration spectrum is converted to actual spectrum, completes test by main control module 1 by differential algorithm.
As shown in Figure 3：For optical absorption spectra test result under different bias voltages, it can be seen that the suction of quantum-well materials
Receive peak under External Electrical Field to long wave length direction occur " Red shiftings ", and the intensity at exciton absorption peak with the increase of extra electric field and
Reduce, simultaneously as the reduction of exciton bind energy shortens exciton lifetime, the notable broadening of absorption spectra is caused, so that exciton
Absworption peak shows unobvious under big External Electrical Field, and above experimental result is with being based on quantum confinement stark effects (QCSE)
Theory analysis it is consistent.
As shown in Figure 4：For a kind of typical signal converter amplifier circuit.Based on the empty short principle of integrated circuit, equivalent to EA
A terminal voltage be EAbias, one end 0, form reverse bias；
Electric current caused by EA flows through is across resistance, output voltage：
V=IEA*R
The input of wherein analog-to-digital conversion module 5 is connected to signal processing module 4, and output end is connected to main control module 1, mould
Number modular converter 5 is used for receiving voltage signal, and is converted to data signal and sends main control module 1 to.
Wherein main control module 1 biases for analyzing electroabsorption modulator 3, and adjusts bias generator 2, and main control module 1 is also
Voltage after EA current regulatings is acquired, and by the relation of the voltage and current of electroabsorption modulator 3, measures integral light
Spectrum, and differential etc. is carried out to the curve and calculated, it is possible to actual spectrum is restored, it is necessary to which explanation, actually EA's is oblique
Without so suddenly, we can carry out convolution using a function pair original function, the waveform to recover steeper, paint on side
Actual test EA absorption curve, do deconvolution and achieve that.
As shown in Figure 5：For luminous intensity and wavelength schematic diagram and photoelectric current and V diagram.The latter's curve is carried out micro-
Point, you can obtain spectrum.
This spectral method of detection based on integrated device, simple to operate compared with traditional spectrum determines method, cost
It is relatively low, small volume, it is possible to achieve real-time continuous measurement, there is the advantages that highly reliable, precision is high.
Claims (3)
1. a kind of spectrum detection device based on integrated device, include main control module, bias generator, electroabsorption modulator,
Signal processing module and analog-to-digital conversion module, main control module and bias generator, electroabsorption modulator, signal processing module and mould
Number modular converter is in series successively, it is characterised in that：Described bias generator is used for reversely inclined to electroabsorption modulator offer
Put voltage；Electroabsorption modulator is used to convert optical signals to electric signal output electric current；Signal processing module is used to believe in electric current
Number be converted to the voltage signal of amplification；Analog-to-digital conversion module is used to voltage signal being converted to data signal, and is sent to master control
Module；Main control module is used to analyze electroabsorption modulator bias and absorbs the curve of light intensity, and differential calculation, energy are carried out to the curve
Actual spectrum is enough restored, electroabsorption modulator is multiple quantum trap electroabsorption modulator, and bias generator is Dc bias
Generator, the bias amplitude of output is 0-100V, and analog-to-digital conversion module uses ADC.
A kind of 2. spectrum detection device based on integrated device according to claim 1, it is characterised in that：Described master control
Module is also associated with display module and communication module, and display module is used for the working condition and relevant parameter of display device, communication
Module is used to the actual spectrum of device conversion and related data being transferred to relevant device by wired or wireless communication agreement.
A kind of 3. spectral method of detection based on integrated device, it is characterised in that：Specific method is as described below：
Step 1: will treat that light-metering is incided in electroabsorption modulator, electroabsorption modulator converts optical signals to electric signal output
Electric current；It is transferred to signal processing module；
Step 2: the current signal that electroabsorption modulator exports is converted to voltage signal by signal processing module, and it is amplified to suitable
Close the level of analog-to-digital conversion module sampling；
Step 3: voltage signal is converted to data signal by analog-to-digital conversion module, and it is transferred to main control module；
Step 4: main control module can control bias generator to be inhaled in 0V to electricity by digital-to-analogue conversion or pulse width modulation
Adjusted between the operating voltage of receipts modulator, bias voltage is set；
Step 5: after main control module sets bias voltage, the voltage after nursing one's health electroabsorption modulator is acquired, and passes through electricity
The relation of Absorption modulation device voltage and current, measures integration spectrum；
Step 6: integration spectrum is converted to actual spectrum, completes test by main control module by differential algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029407.2A CN106404176B (en) | 2016-11-14 | 2016-11-14 | A kind of spectrum detection device and method based on integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029407.2A CN106404176B (en) | 2016-11-14 | 2016-11-14 | A kind of spectrum detection device and method based on integrated device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106404176A CN106404176A (en) | 2017-02-15 |
| CN106404176B true CN106404176B (en) | 2018-03-23 |
Family
ID=58081555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029407.2A Expired - Fee Related CN106404176B (en) | 2016-11-14 | 2016-11-14 | A kind of spectrum detection device and method based on integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106404176B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229518A (en) * | 2020-10-16 | 2021-01-15 | 武汉电信器件有限公司 | Method, device and equipment for measuring chip absorption spectrum and storage medium |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030074773A (en) * | 2001-02-01 | 2003-09-19 | 싸이퍼젠 바이오시스템즈, 인코포레이티드 | Improved methods for protein identification, characterization and sequencing by tandem mass spectrometry |
| CN101598598A (en) * | 2009-06-15 | 2009-12-09 | 中兴通讯股份有限公司 | A kind of optical spectrum instrumentation and measuring method thereof |
| CN101915615A (en) * | 2010-07-08 | 2010-12-15 | 北京农业智能装备技术研究中心 | Portable field spectroradiometer |
| DE202010010172U1 (en) * | 2010-07-14 | 2011-10-20 | Babel Management Consulting | Sensor for liquid or gas analysis |
| CN102226703B (en) * | 2011-03-29 | 2013-09-25 | 宁波诺驰光电科技发展有限公司 | Distributed fiber multi-parameter sensor and multi-parameter measuring method |
| CN202956187U (en) * | 2012-11-30 | 2013-05-29 | 中国科学院上海技术物理研究所 | Short wave infrared round-the-clock remote multispectral imager |
| CN203432683U (en) * | 2013-07-16 | 2014-02-12 | 北京奥博泰科技有限公司 | Wireless spectrum measuring apparatus |
| CN103674248A (en) * | 2013-11-22 | 2014-03-26 | 深圳先进技术研究院 | Spectral data acquisition and transmission system and operating and application methods thereof |
| CN205562040U (en) * | 2016-04-08 | 2016-09-07 | 深圳市比特原子科技有限公司 | A sensor circuit for gathering near infrared spectroscopy |
| CN206161159U (en) * | 2016-11-14 | 2017-05-10 | 长春工业大学 | Spectrum detection device based on integrated device |
-
2016
- 2016-11-14 CN CN201611029407.2A patent/CN106404176B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106404176A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103245369A (en) | Novel fiber bragg grating demodulation method and system thereof based on multi-longitudinal mode F-P laser device | |
| CN104792729A (en) | Handheld laser gas concentration monitor and control method thereof | |
| CN107219002A (en) | A kind of ultrahigh resolution spectral measurement method and system | |
| CN205843813U (en) | A kind of device of all-fiber formula time domain short scan tera-hertz spectra based on fiber stretcher | |
| CN104062265A (en) | Detection device and detection method for multi-component gas in transformer oil based on spectrum analysis | |
| CN104568835A (en) | Method for eliminating second harmonic residual amplitude modulation in optical fiber sensing system | |
| CN110879103A (en) | Device and method for testing frequency response of wide-band photoelectric detector | |
| CN103162724A (en) | Optical fiber grating sensor demodulation instrument and method based on dynamic scanning | |
| CN103852164B (en) | A kind of method obtaining light source light spectrum | |
| CN101604055A (en) | A kind of parallel double-chamber tunable fiber fabry-perot filter | |
| CN103674287A (en) | Laser wavelength monitoring device based on etalons | |
| CN206161159U (en) | Spectrum detection device based on integrated device | |
| CN106404176B (en) | A kind of spectrum detection device and method based on integrated device | |
| CN103776475A (en) | Optical fiber sensor and sensing method based on linear filter and photoelectric detector | |
| CN101364023A (en) | Modulation and demodulation method of fiber grating and device thereof | |
| CN105281829B (en) | Light vector Network Analyzer device based on Sagnac-ring | |
| CN103528959A (en) | Gas concentration measurement method and device | |
| CN203811538U (en) | Mach-Zehnder interferometer and microcavity cascaded intensity detection type sensor | |
| CN203785693U (en) | Optical fiber sensor based on linear filter and photoelectric detectors | |
| CN102654715A (en) | All-optical modulation device and method based on micro-nano GaAs optical waveguide | |
| CN107255627A (en) | A kind of gas concentration measuring method and its detection means based on series expansion | |
| CN201830267U (en) | Photon type digital microwave frequency measuring device adopting phase shift comb type filter array | |
| CN103196472A (en) | Demodulation instrument and demodulation method of fiber grating dynamic strain based on random unequal interval sampling | |
| CN210862726U (en) | Multichannel high-speed fiber grating demodulation module | |
| CN210774379U (en) | High-speed real-time sampling and measuring device for intermediate infrared ultrafast optical signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20191114 |