CN113178438A - Optical signal calculation device and optical signal calculation method - Google Patents
Optical signal calculation device and optical signal calculation method Download PDFInfo
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- CN113178438A CN113178438A CN202110446839.8A CN202110446839A CN113178438A CN 113178438 A CN113178438 A CN 113178438A CN 202110446839 A CN202110446839 A CN 202110446839A CN 113178438 A CN113178438 A CN 113178438A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 83
- 238000004364 calculation method Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 17
- 229910052710 silicon Inorganic materials 0.000 description 17
- 239000010703 silicon Substances 0.000 description 17
- 239000000377 silicon dioxide Substances 0.000 description 13
- 235000012239 silicon dioxide Nutrition 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000001444 catalytic combustion detection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
- H01L25/16—Assemblies consisting of a plurality of semiconductor or other solid state devices the devices being of types provided for in two or more different subclasses of H10B, H10D, H10F, H10H, H10K or H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of semiconductor or other solid state devices the devices being of types provided for in two or more different subclasses of H10B, H10D, H10F, H10H, H10K or H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
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Abstract
本发明涉及一种光信号计算装置及光信号计算方法，包括半导体衬底、发射单元、分光单元、探测单元；发射单元、分光单元、光电探测单元依次制备于半导体衬底上；发射单元，用于发射光信号，发射单元包括一个或多个第一光信号；分光单元，用于对第一光信号进行分光产生多路第二光信号；光电探测单元，光电探测单元包括一个或多个光电探测器，用于接收多路第二光信号组，实现光电转换。利用衍射效应进行分光，并用多路光电探测器进行光电信号转换，获得多个电信号数据，与传统单路探测方案相比可大幅提高光电信号处理效率，利用该技术方案可以将发射单元、分光单元、光电探测单元三个模块进行集成，获得高集成度的光信号计算装置。
The invention relates to an optical signal calculation device and an optical signal calculation method, comprising a semiconductor substrate, an emission unit, a light splitting unit, and a detection unit; the emission unit, the light separation unit and the photoelectric detection unit are sequentially prepared on the semiconductor substrate; For transmitting optical signals, the transmitting unit includes one or more first optical signals; the optical splitting unit is used for splitting the first optical signal to generate multiple second optical signals; the photoelectric detection unit includes one or more photoelectric signals The detector is used for receiving multiple second optical signal groups to realize photoelectric conversion. The diffraction effect is used for light splitting, and the multi-channel photodetector is used for photoelectric signal conversion to obtain multiple electrical signal data. Compared with the traditional single-channel detection scheme, the photoelectric signal processing efficiency can be greatly improved. Using this technical scheme, the transmitting unit, the light splitting The three modules of the unit and the photoelectric detection unit are integrated to obtain a highly integrated optical signal computing device.
Description
Technical Field
The present invention relates to the field of optical computing, and in particular, to an optical signal computing apparatus and an optical signal computing method.
Background
In the field of electricity, with the development of semiconductor process technology, photoelectric conversion devices have been developed rapidly, and various photoelectric conversion devices have been widely used in various industries. From the discovery of photoelectric effect, photoelectric conversion devices have been developed rapidly, and various photoelectric conversion devices have been widely used in various industries. Common photoelectric effect conversion devices include photoresistors, photomultipliers, photocells, PIN tubes, CCDs, and the like. The on-chip integrated optical computing device attracts much attention, and can realize chip-level integration of each functional module, thereby improving the system stability, reducing the size of the device and reducing the energy consumption ratio of the device. However, the conventional photoelectric conversion device cannot simultaneously realize the functions of photoelectric signal conversion and conversion of a single signal into multiple signals, and is convenient for performing multi-circuit control by using the output electric signals.
Disclosure of Invention
The invention provides an optical signal calculating device and an optical signal calculating method, which aim to overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an optical signal computing apparatus comprising: the device comprises a semiconductor substrate, an emitting unit, a light splitting unit and a detecting unit;
the emitting unit, the light splitting unit and the photoelectric detection unit are sequentially prepared on the semiconductor substrate;
the transmitting unit is used for transmitting optical signals and comprises one or more first optical signals;
the optical splitting unit is used for splitting the first optical signal to generate a plurality of paths of second optical signals;
and the photoelectric detection unit comprises one or more photoelectric detectors and is used for receiving the multiple paths of second optical signals and realizing photoelectric conversion.
Furthermore, the light splitting unit is a transmission grating, and the photoelectric detection unit is located on an arc line with the transmission grating as a circle center.
Further, the transmitting unit may be adjusted by an external circuit.
In a second aspect, an optical signal calculation method includes the steps of:
s1, the transmitting unit sends out a first optical signal;
s2, the light splitting unit receives the first optical signal, splits the first optical signal and outputs a plurality of paths of second optical signals;
s3, the photoelectric detection unit receives the multiple second optical signals and controls output according to the parameters of the multiple second optical signals; the method specifically comprises the following steps:
s301, receiving the second optical signal;
s302, comparing the second optical signal parameter with a set reference optical signal parameter;
and S303, outputting a corresponding electric signal by the photoelectric detector according to the comparison result in the S302.
Further, the method also comprises the following steps:
and S4, sending the signal output by the photoelectric detector in the step S3 to the photoelectric detector again, and realizing cascade operation.
Adopt above-mentioned scheme, utilize diffraction effect to carry out the beam split, and carry out photoelectric signal conversion with multichannel photoelectric detector, obtain a plurality of electric signal data, can improve photoelectric signal processing efficiency by a wide margin compared with traditional single-channel detection scheme, utilize this technical scheme can be integrated emission unit, beam split unit, three module of detecting element, obtain the optical signal computing device of high integration, the electric signal of output can be controlled through the luminescent characteristic of adjusting emission unit, the precision also can be controlled through quantity and the scope of adjusting grating constant and detector, wide in application range, in addition can use optical signal computing device to carry out optical computation.
Drawings
FIG. 1 is a schematic diagram of an optical signal computing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an optical signal calculating apparatus according to an embodiment of the present invention.
Wherein the reference numerals include: the device comprises an LED chip 1, a silicon dioxide grating 2, a silicon detector 3, an arc 4 taking the silicon dioxide grating as a circle center, a maximum diffraction angle 5 of the silicon dioxide grating and a silicon substrate 6.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic diagram illustrating an operation principle of an embodiment of an optical signal computing apparatus of the present invention, and fig. 2 is a schematic diagram illustrating a three-dimensional structure of an embodiment of an optical signal computing apparatus of the present invention, including a semiconductor substrate, an emitting unit, a light splitting unit, and a detecting unit; the light-emitting diode comprises an emitting unit, a light-splitting unit and a photoelectric detector, wherein the emitting unit is an LED chip 1, the light-splitting unit is a silicon dioxide grating 2, the photoelectric detector is a silicon detector 3, the three units are respectively and sequentially prepared on a silicon substrate 6, and the emitting unit is an LED chip 1 and is used for emitting a first optical signal; the silicon dioxide grating 2 splits the first optical signal to generate 5 paths of second optical signals; the silicon detector 3 is used for receiving the optical signals of the plurality of second optical signals and performing photoelectric conversion. The LED chip 1 may be selected from visible light, infrared light or ultraviolet light. The size of the LED chip 1 is not limited, and may be matched to the silicon substrate 6. The end face of the LED chip 1 facing the silica grating 2 is plated with an antireflection film, and other end faces are plated with reflecting films, so that the LED chip 1 is ensured to emit light only from the end face facing the silica grating 2, the interference of stray light of other end faces on the device is prevented, and the light emitting efficiency of the LED chip 1 is increased. The height of the LED chip 1 is consistent with that of the silicon dioxide grating 2 and the silicon detector 3, and the LED chip 1 needs to be close to the silicon dioxide grating 2 to enable more light rays to be diffracted and split.
In a preferred embodiment of the present invention, the silica grating 2 is a transmission grating, and the silicon detector 3 is located on an arc 4 centered on the silica grating, and the specific position can be changed according to the grating equation. The silica grating 2 diffracts the first optical signal according to the grating equation:
dsinθ＝kλ；
d: a grating constant;
θ: diffraction angle;
k: the number of fringe stages;
λ: the wavelength of the light wave is measured,
if at the maximum diffraction angle thetamaxAt the maximum diffraction angle theta of the silicon detector 3maxDepending on the order of light diffracted by the desired grating,
if the first order diffracted light is needed, k is 1
By analogy, if the silicon detector 3 needs to be placed at several orders of diffraction light, k is correspondingly valued to determine the placement position of the detector.
In a preferred embodiment of the invention, the LED chip 1 can be regulated by an external circuit.
The embodiment of the invention provides an optical signal calculation method, which comprises the following steps:
s1, the LED chip 1 sends out a first optical signal;
s2, receiving the first optical signal in the step S1 by the silicon dioxide grating 2, and splitting the first optical signal to output 5 paths of second optical signals;
s3, the silicon detector 3 receives the 5 paths of second optical signals in the step S2 and controls output according to the parameters of the 5 paths of second optical signals; the method specifically comprises the following steps:
s301, the silicon detector 3 receives 5 paths of second optical signals;
s302, setting two reference values A, B according to the intensity of the optical signals, and comparing the 5 paths of second optical signals with the reference value A, B in sequence;
s303, according to the comparison result in the S302, the light intensity is smaller than the reference value A, and the corresponding electric signal output by the silicon detector 3 is 0; the light intensity is between the reference value A, B, and the output of the silicon detector 3 corresponds to an electric signal of 1; the light intensity is greater than the reference value B, and the silicon detector 3 outputs a corresponding electrical signal of 2.
In a preferred embodiment of the present invention, the method further comprises the following steps:
and S4, re-sending the signal output by the silicon detector 3 in the step S3 to the silicon detector 3, and realizing cascade operation.
Adopt above-mentioned scheme, utilize diffraction effect to carry out the beam split, and carry out photoelectric signal conversion with multichannel photoelectric detector, obtain a plurality of electric signal data, can improve photoelectric signal processing efficiency by a wide margin compared with traditional single-channel detection scheme, utilize this technical scheme can be integrated emission unit, beam-splitting unit, three modules of photoelectric detection unit, obtain the optical signal computing device of high integration, the electric signal of photoelectric detection unit output can be controlled through the luminescent characteristic of adjustment emission unit, the precision also can be controlled through quantity and the scope of adjustment grating constant and detector, wide in use range, in addition can use optical signal computing device to carry out optical computation.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be taken as limiting the invention. Variations, modifications, substitutions and alterations of the above-described embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110446839.8A CN113178438A (en) | 2021-04-25 | 2021-04-25 | Optical signal calculation device and optical signal calculation method |
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| CN202110446839.8A CN113178438A (en) | 2021-04-25 | 2021-04-25 | Optical signal calculation device and optical signal calculation method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0850262A (en) * | 1994-08-05 | 1996-02-20 | Nippon Columbia Co Ltd | Optical band pass filter and photodetector |
| US20040145738A1 (en) * | 2002-10-28 | 2004-07-29 | Xerox Corporation | Structure and method for a microelectromechanic cylindrical reflective diffraction grating spectrophotometer |
| CN102636259A (en) * | 2012-04-25 | 2012-08-15 | 清华大学 | Multi-aperture optical signal detection system and method |
| CN105161550A (en) * | 2015-06-23 | 2015-12-16 | 中国科学院半导体研究所 | Photoelectric detector assembly |
| CN108155934A (en) * | 2017-12-22 | 2018-06-12 | 武汉光迅科技股份有限公司 | A kind of OLT ends optical transceiver module and method with time domain reflection function |
| CN110749893A (en) * | 2019-09-21 | 2020-02-04 | 深圳奥锐达科技有限公司 | Two-dimensional scanning laser radar device and electronic equipment |
| CN112449295A (en) * | 2019-08-30 | 2021-03-05 | 华为技术有限公司 | Microphone chip, microphone and terminal equipment |
-
2021
- 2021-04-25 CN CN202110446839.8A patent/CN113178438A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0850262A (en) * | 1994-08-05 | 1996-02-20 | Nippon Columbia Co Ltd | Optical band pass filter and photodetector |
| US20040145738A1 (en) * | 2002-10-28 | 2004-07-29 | Xerox Corporation | Structure and method for a microelectromechanic cylindrical reflective diffraction grating spectrophotometer |
| CN102636259A (en) * | 2012-04-25 | 2012-08-15 | 清华大学 | Multi-aperture optical signal detection system and method |
| CN105161550A (en) * | 2015-06-23 | 2015-12-16 | 中国科学院半导体研究所 | Photoelectric detector assembly |
| CN108155934A (en) * | 2017-12-22 | 2018-06-12 | 武汉光迅科技股份有限公司 | A kind of OLT ends optical transceiver module and method with time domain reflection function |
| CN112449295A (en) * | 2019-08-30 | 2021-03-05 | 华为技术有限公司 | Microphone chip, microphone and terminal equipment |
| CN110749893A (en) * | 2019-09-21 | 2020-02-04 | 深圳奥锐达科技有限公司 | Two-dimensional scanning laser radar device and electronic equipment |
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