CN114414497A - Full-automatic spectrum test calibration method and system for multi-channel light source product - Google Patents
Full-automatic spectrum test calibration method and system for multi-channel light source product Download PDFInfo
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- CN114414497A CN114414497A CN202210012118.0A CN202210012118A CN114414497A CN 114414497 A CN114414497 A CN 114414497A CN 202210012118 A CN202210012118 A CN 202210012118A CN 114414497 A CN114414497 A CN 114414497A
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000001228 spectrum Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000003595 spectral effect Effects 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 7
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The invention discloses a full-automatic spectrum test calibration method and system for a multi-channel light source product, and relates to the technical field of multi-channel light source product test calibration. The invention comprises the following steps: setting spectral wavelength, adjusting precision range and refreshing spectral time; step two, scanning wavelength in a spectrum and analyzing the wavelength to obtain a wave peak value; step three, storing the wavelength and the corresponding temperature value; and step four, judging the wavelength and setting the wavelength difference, wherein when the comparison between the debugging wavelength and the set wavelength exceeds the adjustment precision, the step two is executed, and when the comparison between the debugging wavelength and the set wavelength accords with the adjustment precision range, the debugging is finished. The invention shortens the process time of testing a 6-channel optical module product from 1.5h to within 15min, controls the wavelength precision within 0.02nm through continuous feedback adjustment, improves the rigor of the testing process by automatically deriving data and graphs, and simultaneously avoids the problems of time consumption of manual recording and easy recording error.
Description
Technical Field
The invention belongs to the technical field of multi-channel light source product testing and calibration, and particularly relates to a full-automatic spectrum testing and calibration method and system for a multi-channel light source product.
Background
In recent years, DWDM multi-channel optical source products have been widely used, and as with common optical modules, they convert electrical signals into optical signals and then convert the optical signals into electrical signals.
However, a multi-channel light source product has high requirements on the wavelength of each channel, and in actual production, the actual wavelength emitted by an LD laser and the calibrated wavelength often have a difference, so we generally adjust the TEC parameters manually through upper computer software, thereby adjusting the wavelength by changing the temperature. However, such products require high precision of the wavelength, so that manual adjustment requires a long time.
Disclosure of Invention
The invention aims to provide a full-automatic spectrum test calibration method and system for a multi-channel light source product, and solves the technical problems that the multi-channel light source product has high requirement on wavelength precision and needs long time for manual adjustment.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a full-automatic spectrum test calibration method for a multi-channel light source product comprises the following steps: the method comprises the following steps:
setting spectral wavelength, adjusting precision range and refreshing spectral time;
step two, scanning wavelength in a spectrum and analyzing the wavelength to obtain a wave peak value;
step three, storing the wavelength and the corresponding temperature value;
and step four, judging the wavelength and setting the wavelength difference, wherein when the comparison between the debugging wavelength and the set wavelength exceeds the adjustment precision, the step two is executed, and when the comparison between the debugging wavelength and the set wavelength accords with the adjustment precision range, the debugging is finished.
Optionally, the fourth step further includes: when the comparison difference between the debugging wavelength and the set wavelength is larger than 0.8nm, coarse adjustment is carried out, and when the comparison difference between the debugging wavelength and the set wavelength is below 0.1nm, fine adjustment is carried out.
A full-automatic spectrum test calibration system of a multi-channel light source product comprises a spectrometer, a computer and a multi-channel power supply, wherein the multi-channel power supply comprises an electrifying plate, the spectrometer is connected with the computer and the multi-channel power supply, and the computer is connected with the electrifying plate.
Optionally, add electric plate one end and be connected with DC power supply, add the signal output part and the signal output part of electric plate and all be connected with the computer, the signal output part and the signal output part of spectrum appearance all are connected with the computer, DC power supply through the electric wire with add the electric plate and be connected.
Optionally, the multichannel light source is connected with the spectrometer through a jumper, the spectrometer is connected with the computer through a network cable, and the computer is connected with the power-up plate through a cable.
The embodiment of the invention has the following beneficial effects:
the invention shortens the process time of testing a 6-channel optical module product from 1.5h to within 15min, controls the wavelength precision within 0.02nm through continuous feedback adjustment, improves the rigor of the testing process by automatically deriving data and graphs, and simultaneously avoids the problems of time consumption of manual recording and easy recording error.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a system diagram of an embodiment of the present invention;
FIG. 2 is a flowchart of a method according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
the spectrometer comprises a spectrometer 1, a computer 2, a multi-channel power supply 3, an electrifying plate 4 and a direct current power supply 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
Referring to fig. 1-2, in the present embodiment, a method for calibrating a full-automatic spectrum test of a multi-channel light source product is provided, including: the method comprises the following steps:
setting spectral wavelength, adjusting precision range and refreshing spectral time;
step two, scanning wavelength in a spectrum and analyzing the wavelength to obtain a wave peak value;
step three, storing the wavelength and the corresponding temperature value;
and step four, judging the wavelength and setting a wavelength difference, wherein when the comparison between the debugging wavelength and the set wavelength exceeds the adjustment precision, the step two is executed, when the comparison difference between the debugging wavelength and the set wavelength is larger than 0.8nm, rough adjustment is carried out, when the comparison difference between the debugging wavelength and the set wavelength is less than 0.1nm, fine adjustment is carried out, and when the comparison between the debugging wavelength and the set wavelength accords with the adjustment precision range, the debugging is finished.
The utility model provides a full-automatic spectrum test calibration system of multichannel light source product, including spectrum appearance 1, computer 2, multichannel power supply 3 is including adding electroplax 4, spectrum appearance 1 and computer 2, multichannel power supply 3 is connected, computer 2 with add electroplax 4 and be connected, add 4 one ends of electroplax and be connected with DC power supply 5, add the signal output part and the signal output part of electroplax 4 and all be connected with computer 2, the signal output part and the signal output part of spectrum appearance 1 all are connected with computer 2, DC power supply 5 through the electric wire with add electroplax 4 and be connected, multichannel light source 3 is connected with spectrum appearance 1 through the wire jumper, connect through the net twine between spectrum appearance 1 and the computer 2, computer 2 through the cable with add electroplax 4 and be connected.
The power-on board 4 is a power-on board of the multi-channel light source 3 and has two functions of power-on and communication, wherein the power-on function is connected with an independent direct-current power supply 5, and the communication function is connected to upper computer software on the computer 2 through the communication board and a communication line;
the multi-channel light source 3 mainly comprises a multi-channel LD laser and a PCBA mainboard written in a lower computer program, and the PCBA mainboard is connected with the TEC of a product so as to achieve the purpose of controlling the temperature;
the multichannel light source 3 is connected to the spectrograph 1 through a jumper wire, and graph data such as waveforms, wavelengths and the like are obtained through a scanning function;
the spectrometer 1 is connected with the computer 2 through a network cable, the required wavelength is set through upper computer software of the computer 2, and the required wavelength is obtained through continuous feedback;
different multi-channel light sources 3 need to select different jumpers according to different adapter types.
The invention connects the spectrometer 1 and the computer 2 through a network cable, sets spectrum demand conditions from an upper computer software interface, controls the test board by the upper computer, adjusts a lower computer program of the light source module, changes the working temperature of the TEC, feeds data measured by the spectrometer 1 back to the upper computer system, and repeatedly debugs the upper computer system according to the feedback value and the set value until the spectrum deviation value meets the requirement, thereby realizing the full-automatic spectrum test calibration function.
The manual test system needs 1.5h for testing a 6-channel optical module product, the existing full-automatic calibration system can shorten the process to within 15min, even one computer can be connected with a plurality of spectrum test devices, and the test efficiency is improved by more than 10 times.
The previous test precision is controlled within 0.1nm, and the system controls the precision within 0.02nm because of continuous feedback adjustment.
In the previous test, data and images need to be recorded manually, time is consumed, meanwhile, errors are easy to record, the system automatically derives the data and the images, and the rigor of the test process is improved.
The above embodiments are combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (10)
1. A full-automatic spectrum test calibration method of a multi-channel light source product is characterized by comprising the following steps: the method comprises the following steps:
setting spectral wavelength, adjusting precision range and refreshing spectral time;
step two, scanning wavelength in a spectrum and analyzing the wavelength to obtain a wave peak value;
step three, storing the wavelength and the corresponding temperature value;
and step four, judging the wavelength and setting the wavelength difference, wherein when the comparison between the debugging wavelength and the set wavelength exceeds the adjustment precision, the step two is executed, and when the comparison between the debugging wavelength and the set wavelength accords with the adjustment precision range, the debugging is finished.
2. The method for calibrating full-automatic spectrum test of a multi-channel light source product according to claim 1, wherein the step four further comprises: when the comparison difference between the debugging wavelength and the set wavelength is larger than 0.8nm, coarse adjustment is carried out, and when the comparison difference between the debugging wavelength and the set wavelength is below 0.1nm, fine adjustment is carried out.
3. The full-automatic spectrum test calibration system of the multi-channel light source product is characterized by comprising a spectrometer (1), a computer (2) and a multi-channel power supply (3), wherein the multi-channel power supply (3) comprises a power supply board (4), the spectrometer (1) is connected with the computer (2) and the multi-channel power supply (3), and the computer (2) is connected with the power supply board (4).
4. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 3, wherein one end of the power applying plate (4) is connected with a direct current power supply (5).
5. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 3, wherein the signal output end and the signal output end of the power applying plate (4) are both connected with the computer (2).
6. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 3, wherein the signal output end and the signal output end of the spectrometer (1) are both connected with the computer (2).
7. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 3, wherein the multi-channel light source (3) is connected with the spectrometer (1) through a jumper wire.
8. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 3, wherein the spectrometer (1) and the computer (2) are connected through a network cable.
9. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 3, wherein the computer (2) is connected with the power-on board (4) through a cable.
10. The full-automatic spectrum test calibration system of the multi-channel light source product as claimed in claim 4, wherein the direct current power supply (5) is connected with the power-on board (4) through a wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210012118.0A CN114414497A (en) | 2022-01-06 | 2022-01-06 | Full-automatic spectrum test calibration method and system for multi-channel light source product |
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| CN202210012118.0A CN114414497A (en) | 2022-01-06 | 2022-01-06 | Full-automatic spectrum test calibration method and system for multi-channel light source product |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995936A (en) * | 2005-12-31 | 2007-07-11 | 中国科学院半导体研究所 | Automated test control system and method for wavelength tunable laser |
| CN107036712A (en) * | 2017-06-22 | 2017-08-11 | 中国科学院长春光学精密机械与物理研究所 | A kind of spectrum channel calibration data acquisition method and system |
| CN110112649A (en) * | 2019-04-29 | 2019-08-09 | 安徽安匠信息科技有限公司 | The method and device of inexpensive automatic Calibration Distributed Feedback Laser wavelength |
| CN113050239A (en) * | 2021-02-05 | 2021-06-29 | 武汉英飞光创科技有限公司 | Method for adjusting wavelength of optical module by utilizing astigmatism |
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- 2022-01-06 CN CN202210012118.0A patent/CN114414497A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995936A (en) * | 2005-12-31 | 2007-07-11 | 中国科学院半导体研究所 | Automated test control system and method for wavelength tunable laser |
| CN107036712A (en) * | 2017-06-22 | 2017-08-11 | 中国科学院长春光学精密机械与物理研究所 | A kind of spectrum channel calibration data acquisition method and system |
| CN110112649A (en) * | 2019-04-29 | 2019-08-09 | 安徽安匠信息科技有限公司 | The method and device of inexpensive automatic Calibration Distributed Feedback Laser wavelength |
| CN113050239A (en) * | 2021-02-05 | 2021-06-29 | 武汉英飞光创科技有限公司 | Method for adjusting wavelength of optical module by utilizing astigmatism |
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