CN109540284A - A kind of optical power detector and its measurement method and preparation method - Google Patents
A kind of optical power detector and its measurement method and preparation method Download PDFInfo
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- CN109540284A CN109540284A CN201811312385.XA CN201811312385A CN109540284A CN 109540284 A CN109540284 A CN 109540284A CN 201811312385 A CN201811312385 A CN 201811312385A CN 109540284 A CN109540284 A CN 109540284A
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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
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- 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
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
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Abstract
The present invention relates to actinometry field, a kind of optical power detector and its measurement method and preparation method are disclosed, wherein the detector includes optical fiber, the first light-absorption layer, heat-conducting layer and temperature sensor；First light-absorption layer is coated on the surface of the terminal of the optical fiber, and the material of first light-absorption layer is light absorbent；The heat-conducting layer is coated on the surface of first light-absorption layer, and the material of the heat-conducting layer is Heat Conduction Material；The surface of the heat-conducting layer is arranged in the temperature sensor, for detecting the temperature of the heat-conducting layer.Detector provided by the invention can accurate measurement optical power, and measurement result will not be influenced because of the divergence characterization of light, therefore the detector can guarantee the pinpoint accuracy of testing result.
Description
Technical field
The present invention relates to actinometry fields, more particularly to a kind of optical power detector and its measurement method and preparation side
Method.
Background technique
Optical fiber (that is, optical fiber) is a kind of fiber that can conduct light wave and various optical signals.In current information
In generation, people have a large amount of information and data to need to process and handle in economic activity and scientific research, and optical fiber exactly transmits
The optimal tool of information.Information system based on optical commucication technology is compared with traditional cable system, same
It can carry out the transmission of a greater amount of and more type informations in more time.
Optical power measurement method is usually: after tested light is incident on optical fiber, fibre-optic terminus being directed at a planar detector
Device, the test surface of the planar detector can effectively cover the light radiation cross section being emitted from fibre-optic terminus, spectral responsivity one
As be trace to the source it is quasi- to corresponding national measurement disjunction mark.But the standard that the spectral responsivity of planar detector is traceable to, generally
It is realization to be realized by collimated light, and optical power has certain divergence characterization after leaving fibre-optic terminus, with difference
Angle can bring error when being incident on detector plane, it is therefore desirable to develop better method to realize that high accuracy measures.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of optical power detectors, it is intended at least solve the prior art or deposit in the related technology
The technical issues of one of.
The object of the present invention is to provide a kind of optical power measurement methods of optical power detector, it is intended at least solve existing skill
One of technical problem present in art or the relevant technologies.
The object of the present invention is to provide a kind of preparation methods of optical power detector, it is intended at least the solution prior art or phase
One of technical problem present in the technology of pass.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of optical power detectors, comprising: optical fiber, the first light-absorption layer,
Heat-conducting layer and temperature sensor；First light-absorption layer is coated on the surface of the terminal of the optical fiber, and first light-absorption layer
Material be light absorbent；The heat-conducting layer is coated on the surface of first light-absorption layer, and the material of the heat-conducting layer is to lead
Hot material；The surface of the heat-conducting layer is arranged in the temperature sensor, for detecting the temperature of the heat-conducting layer.
The present invention also provides a kind of optical power measurement methods using above-mentioned optical power detector, comprising: by light to be measured
It is incident to optical fiber, so that the first light-absorption layer of the terminal of the optical fiber absorbs the light to be measured and heats up；First light-absorption layer
Temperature be transferred to heat-conducting layer so that the temperature of the heat-conducting layer increases；According to the heat-conducting layer of temperature sensor detection
First time temperature change obtains the power of the light to be measured.
The present invention also provides a kind of preparation methods of above-mentioned optical power detector, comprising: on the surface of the terminal of optical fiber
The first light-absorption layer is coated, and coats heat-conducting layer on the surface of first light-absorption layer；On the surface of the heat-conducting layer, temperature is set
Spend sensor；Wherein, the material of first light-absorption layer is light absorbent；The material of the heat-conducting layer is Heat Conduction Material.
(3) beneficial effect
Optical power detector provided by the invention and its measurement method and preparation method are successively wrapped by the terminal in optical fiber
Cover the first light-absorption layer and heat-conducting layer, and temperature sensor be set on heat-conducting layer, then can by the first light-absorption layer, heat-conducting layer and
The mutual cooperation of temperature sensor to detect the power for the light for being incident to optical fiber, and then obtains one kind and accurate can survey
The detector of optical power is measured, and the optical power detector will not influence measurement result because of the divergence characterization of light, therefore the detector
It can guarantee the pinpoint accuracy of testing result.
Detailed description of the invention
Fig. 1 is the longitudinal sectional view of a preferred embodiment of optical power detector of the present invention；
Fig. 2 is the longitudinal sectional view of another preferred embodiment of optical power detector of the present invention；
Fig. 3 is the right view of another preferred embodiment of optical power detector of the present invention；
Fig. 4 is the right view of another preferred embodiment of optical power detector of the present invention；
In figure, 1- fibre core；2- covering；3- protective layer；The first light-absorption layer of 4-；5- heat-conducting layer；6- temperature sensor；7- adds
Hot device；8- substrate；9- heat-conducting medium layer；The second light-absorption layer of 10-.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Embodiment 1:
Fig. 1 shows the longitudinal sectional view of a preferred embodiment of optical power detector of the present invention, as shown in Figure 1, should
Optical power detector includes: optical fiber, the first light-absorption layer 4, heat-conducting layer 5 and temperature sensor 6；First light-absorption layer 4 is coated on optical fiber
Terminal surface, and the material of the first light-absorption layer 4 be light absorbent；Heat-conducting layer 5 is coated on the surface of the first light-absorption layer 4, and
The material of heat-conducting layer 5 is Heat Conduction Material；The surface of heat-conducting layer 5 is arranged in temperature sensor 6, for detecting the temperature of heat-conducting layer 5.
Specifically, since light absorbent refers to that light is radiated on things, transmission is had no except Yu Zhaoming, is not also generated
Mapping and the solar flare of bulk and reflective, but diffusing reflection goes out some light again after absorbing light, to keep regular bright
Blindstory.For example, the material of the first light-absorption layer 4 use high absorbance material, for example, the material of the first light-absorption layer 4 be it is novel,
Ultra-thin graphene thin plate etc..And the first light-absorption layer 4 is coated on to the surface of the terminal of optical fiber, for example, by first extinction
Layer 4 is coated on the surface of the terminal of optical fiber completely, if the surface of the terminal of optical fiber is cylinder, the shape of first light-absorption layer 4
Shape is hollow cylinder, and the straight line of the terminal of the interior diameter and optical fiber of the hollow cylinder matches, i.e. the first light-absorption layer 4 and light
Fine terminal fits closely.Certainly, the shape of the first light-absorption layer 4 can be different according to the shape of the terminal of optical fiber, and accordingly change
Become.Then when light is incident on optical fiber, so that light is absorbed by first light-absorption layer 4, so that the temperature of the first light-absorption layer 4
It increases.
Since Heat Conduction Material is a kind of infant industry material.These materials be in recent years for equipment heat transfer requirement and
Design, it has excellent performance, reliably.For example, the material of heat-conducting layer 5 uses highly heat-conductive material, for example, the material of heat-conducting layer 5 is height
Fine copper or graphite flake etc..And the heat-conducting layer 5 is coated on to the surface of the first light-absorption layer 4, for example, the heat-conducting layer 5 is inhaled first
Photosphere 4 coats completely, and the shape of heat-conducting layer 5 is similar with the shape of the first light-absorption layer 4, if the shape of the first light-absorption layer 4 is sky
The heart is cylindrical, then the shape of heat-conducting layer 5 is also hollow cylinder, and heat-conducting layer 5 is fitted closely with the first light-absorption layer 4.Certainly, it leads
The shape of thermosphere 5 can be different according to the shape of the first light-absorption layer 4, and accordingly change.Then when in the temperature of the first light-absorption layer 4
When rising, the temperature of the first light-absorption layer 4 can be transferred to the heat-conducting layer 5, so that the temperature of heat-conducting layer 5 also accordingly increases.
And temperature can be experienced and be converted into can since temperature sensor 6 (temperature transducer) refers to
With the sensor of output signal.By the surface of heat-conducting layer 5 be arranged temperature sensor 6, then can real-time detection heat-conducting layer 5 temperature
Degree, and then the heat of temperature change generation can be obtained according to the temperature change of heat-conducting layer 5, to obtain the light for being incident to optical fiber
The watt level of line.
In the present embodiment, the first light-absorption layer 4 and heat-conducting layer 5 are successively coated by the terminal in optical fiber, and thermally conductive
Temperature sensor 6 is set on layer 5, then it can be by the mutual cooperation of the first light-absorption layer 4, heat-conducting layer 5 and temperature sensor 6, to examine
Survey the power for being incident to the light of optical fiber, so obtain it is a kind of can accurate measurement optical power detector, and the light function
Rate detector will not influence measurement result because of the divergence characterization of light, therefore the detector can guarantee the high precision of testing result
Degree.
In addition, same layer can be set as the first light-absorption layer 4 and heat-conducting layer 5, the material of this layer is provided simultaneously with extinction and thermally conductive
Performance, for example, the material of this layer is graphene etc..In addition, 0.1-100mm can be set as the thickness of the first light-absorption layer；And
The thickness direction of first light-absorption layer and the length direction of optical fiber are consistent.
Further, optical power detector, further includes: at least one heater 7；Heat-conducting layer 5 is arranged in heater 7
Surface, for heating heat-conducting layer 5.It is illustrated in the present embodiment by for a heater 7 is arranged in the surface of heat-conducting layer 5,
But the protection scope being not intended to restrict the invention.For example, the straight flange on heat-conducting layer 5 with wedge shape is arranged in temperature sensor 6
Opposite place；Opposite place is arranged on heat-conducting layer 5 with the bevel edge of wedge shape in heater 7.For example, the heater 7 is to pass through electricity
The electric heater 7 that pole is heated.
Then in the detector measurement optical power, tested light is first incident to optical fiber, then light is inhaled by the first light-absorption layer 4
It receives, so that the temperature of the first light-absorption layer 4 increases；Then, the temperature of the first light-absorption layer 4 is transferred to heat-conducting layer 5, so that heat-conducting layer 5
Temperature also increase, temperature sensor 6 can detect the temperature change of heat-conducting layer 5 at this time, for example, at this time temperature sensor 6 examine
The temperature change for measuring heat-conducting layer 5 is T1.Later, tested light is removed, heater 7 is heated using electrode, in turn
So that the temperature of heat-conducting layer 5 increases, when temperature sensor 6 detects that the temperature change of heat-conducting layer 5 is also T1, stop to adding
Hot device 7 is heated, at this time the electric current I and voltage value U of recording electrode.The temperature for making heat-conducting layer 5 can be calculated by P=UI
Degree variation T1 needed for power, can by the power with according to the temperature change of temperature sensor 6 obtain light to be measured power into
Row compares, and realizes the self calibration to the detector, and then obtain the measurement accuracy of the detector.
In addition, can also be as needed in the multiple heaters 7 of the surface of heat-conducting layer 5 setting, multiple heaters 7 while to thermally conductive
Layer 5 is heated, and can shorten the heating-up time of heat-conducting layer 5, to improve the efficiency of detector.
Further, the vertical sectional shape of the terminal of optical fiber is wedge shape；And the bevel edge of wedge shape is located at the end of the terminal of optical fiber
At face.Preferably, the angle between wedge-shaped bevel edge and the central axis of the optical fiber is 45-75 °.That is, the terminal of the optical fiber
End face is inclined-plane, for example, inclined-plane inclined upward to the left.That is, the angle between the bevel edge of the wedge shape and the central axis of optical fiber is
Acute angle, the fibre-optic terminus of this kind of structure can reduce noise, improve detector when the terminal and light-absorption layer of optical fiber contact
Accuracy.And when the angular range is between 45-75 °, preferable noise reduction effect can be played.
Further, the main part of optical fiber includes the fibre core 1, covering 2 and protective layer 3 successively coated；The terminal of optical fiber
Including fibre core 1, covering 2, the first light-absorption layer 4 and the heat-conducting layer 5 successively coated；And the table of heat-conducting layer 5 is arranged in temperature sensor 6
Face.That is, protective layer 3 is removed in the end of optical fiber, so that the covering 2 of optical fiber is exposed, and then the first light-absorption layer 4 is coated on this
Outside covering 2, and heat-conducting layer 5 is coated on outside the first light-absorption layer 4.And the main part of optical fiber still maintains original structure,
That is fibre core 1., covering 2 and protective layer 3 successively coat.After the terminal of optical fiber removes protective layer 3, the is bonded outside covering 2
One light-absorption layer 4 and heat-conducting layer 5 allow the first light-absorption layer 4 more completely by light absorption, so that the first light-absorption layer 4
Power because absorbing heat and light that light generates is closer to, so that the heat-conducting layer detected according to temperature sensor 6
The optical power that 5 temperature change obtains is more accurate, improves the measurement accuracy of detector.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, brief for description, during the description of the present embodiment, no longer
Technical characteristic same as Example 1 is described, only illustrates the present embodiment difference from Example 1:
As shown in Figures 2 and 3, optical power detector, further includes: basal layer；The side of basal layer is connected with heat-conducting layer 5,
And the surface of basal layer is arranged in temperature sensor 6；Basal layer is the substrate 8 that heat-conducting medium layer 9 or surface have heating conduction.
If basal layer is heat-conducting medium layer 9, for example, the material of the heat-conducting medium layer 9 is highly heat-conductive material.The then optical power
The structure of detector (that is, detector) is as shown in Fig. 2, can set the fibre-optic terminus for being coated with the first light-absorption layer 4 and heat-conducting layer 5
It sets on the surface of the heat-conducting medium layer 9；It is led for example, the fibre-optic terminus for being coated with the first light-absorption layer 4 and heat-conducting layer 5 is attached to this
The left side on the surface of thermal medium layer 9；Temperature sensor 6 is arranged in the right side on the surface of the heat-conducting medium layer 9.It can will also heat
The left side on the surface of the heat-conducting medium layer 9 is arranged in device 7, so that the heat transfer of the heat of heater 7 and heat-conducting layer 5 is extremely
After heat-conducting medium layer 9, the heat that heat-conducting medium layer 9 absorbs is spread around, and diffuses to the path phase of temperature sensor 6
It seemingly, being capable of accurate calibration detectors so that detecting the temperature change of heat-conducting medium layer 9 twice according to temperature sensor 6.
If basal layer is the substrate 8 that surface has heating conduction, the structure of the optical power detector (that is, detector) is such as
Shown in Fig. 3, the fibre-optic terminus for being coated with the first light-absorption layer 4 and heat-conducting layer 5 can be arranged in the upper surface of the substrate 8, i.e., will
Heat-conducting layer 5 is connected with the upper surface of the substrate 8；Then temperature sensor 6 is also disposed to the upper surface of the substrate 8.It can also incite somebody to action
The lower surface of the substrate 8, and the heater 7 and the optical fiber end for being coated with the first light-absorption layer 4 and heat-conducting layer 5 is arranged in heater 7
End is opposite；After making the heat of heater 7 and the heat transfer to substrate 8 of heat-conducting layer 5 in this way, the Surface absorption of substrate 8
Heat is spread around, and the path for diffusing to temperature sensor 6 is similar, so that detecting base twice according to temperature sensor 6
The temperature change on 8 surface of plate, being capable of accurate calibration detectors.
Further, as shown in figure 4, the optical power detector, further includes: the second light-absorption layer 10；Second light-absorption layer 10 with
The other side of basal layer is connected；The material of second light-absorption layer 10 is light absorbent.For example, the shape of second light-absorption layer 10 is saw
Tooth form.Then pass through the interaction of the first light-absorption layer 4 and the second light-absorption layer 10, light to be measured can all be absorbed, so that
First light-absorption layer 4 and the fever of the second light-absorption layer 10, the heat transfer of the first light-absorption layer 4 to heat-conducting layer 5, and transmitted through heat-conducting layer 5
To the surface of substrate 8；The heat of second light-absorption layer 10 is transferred directly to the surface of substrate 8 so that substrate 8 absorb heat with to
The power for surveying light is consistent, and then being capable of accurate measurement optical power.
Embodiment 3:
The present invention also provides a kind of methods using above-mentioned optical power detector measurement optical power, comprising: by light to be measured
It is incident to optical fiber, so that the first light-absorption layer 4 of the terminal of optical fiber absorbs light to be measured and heats up；The temperature of first light-absorption layer 4 is transmitted
To heat-conducting layer 5, so that the temperature of heat-conducting layer 5 increases；According to temperature sensor 6 detect heat-conducting layer 5 first time temperature change,
Obtain the power of light to be measured.It is equal with the heat that heat-conducting layer 5 generates due to the power of light to be measured；It then can be according to heat-conducting layer 5 because inhaling
It receives the heat of the first light-absorption layer 4 and increases its temperature, i.e., the temperature change of heat-conducting layer 5 is first time temperature change, can basis
The first time temperature change obtains the heat of the generation of heat-conducting layer 5, so as to obtain the power of light to be measured according to the heat Calculation.
This kind of measurement method is simple and reliable, and will not influence measurement result because of the divergence characterization of light, therefore the measurement method can guarantee
The pinpoint accuracy of testing result.
Further, the optical power measurement method, further includes: light to be measured is removed, heater 7 is heated, so that plus
The heat transfer of hot device 7 is to heat-conducting layer 5；Second of temperature change and the first time of heat-conducting layer 5 are detected to temperature sensor 6
When temperature change is identical, the electric current and voltage heated at this time to heater 7 is recorded；And stop heating heater 7；
The power that heater 7 consumes is obtained based on electric current and voltage, the power of the power and light to be measured that consume according to heater 7 is to detection
Device is calibrated.Heat-conducting layer 5 is heated using heater 7, so that the temperature of heat-conducting layer 5 increases；And make the heat-conducting layer 5
Second of temperature change with using light incident optical when the first time temperature change of heat-conducting layer 5 it is identical, i.e. heat-conducting layer 5
Raising temperature twice is identical, i.e., heater 7 is identical with smooth work done to be measured.According to second of temperature change of heat-conducting layer 5
When identical as first time temperature change, the electric current and voltage heated to heater 7 is recorded；It can according to the electric current and voltage
With obtain making the temperature change of heat-conducting layer 5 to it is identical as first time temperature change when required power, and then can be by the power
Optical power is surveyed with the band obtained according to first time temperature change to be compared, and the calibration to the detector can be realized, i.e. the spy
Surveying device has self-alignment function, improves the accuracy and reliability of the detector.
In addition, optical power detector can be also mounted in vacuum and low temperature working environment.Because under cryogenic, thermally conductive
Layer 5 and basal layer (for example, basal layer is fine copper) have high thermal conductivity, so that the measurement result of detector is more accurate.Or
Optical power detector is mounted in polyphase equilibrium constant temperature working environment by person.Because at polyphase equilibrium (for example, three phase point of water)
In isoperibol, temperature can control extremely stable, and corresponding noise is low, therefore can more sensitively measure temperature change.
Embodiment 4:
The present invention also provides a kind of preparation methods of above-mentioned optical power detector, comprising: on the surface of the terminal of optical fiber
The first light-absorption layer 4 is coated, and coats heat-conducting layer 5 on the surface of the first light-absorption layer 4；On the surface of heat-conducting layer 5, setting temperature is passed
Sensor 6；Wherein, the material of the first light-absorption layer 4 is light absorbent；The material of heat-conducting layer 5 is Heat Conduction Material.For example, using plated film
Mode the first light-absorption layer 4 is coated on optical fiber terminal surface, and heat-conducting layer 5 is coated on by the way of plated film
The surface of one light-absorption layer 4.Furthermore it is also possible to the first light-absorption layer 4 is coated on to the surface of the terminal of optical fiber using other modes,
And heat-conducting layer 5 is coated on to the surface of the first light-absorption layer 4.The detector obtained using the preparation method and above-mentioned detector strip
The beneficial effect come is identical, and no longer tool is stated herein.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of optical power detector characterized by comprising optical fiber, the first light-absorption layer, heat-conducting layer and temperature sensor；
First light-absorption layer is coated on the surface of the terminal of the optical fiber, and the material of first light-absorption layer is extinction material
Material；
The heat-conducting layer is coated on the surface of first light-absorption layer, and the material of the heat-conducting layer is Heat Conduction Material；
The surface of the heat-conducting layer is arranged in the temperature sensor, for detecting the temperature of the heat-conducting layer.
2. optical power detector according to claim 1, which is characterized in that further include: at least one heater；
The surface of the heat-conducting layer is arranged in the heater, for heating the heat-conducting layer.
3. optical power detector according to claim 2, which is characterized in that the vertical sectional shape of the terminal of the optical fiber is
Wedge shape；And the bevel edge of the wedge shape is located at the endface of the terminal of the optical fiber.
4. optical power detector according to claim 3, which is characterized in that in the bevel edge and the optical fiber of the wedge shape
Angle between mandrel is 45-75 °.
5. optical power detector according to claim 1-4, which is characterized in that the main part subpackage of the optical fiber
Include the fibre core, covering and protective layer successively coated；
The terminal of the optical fiber includes the fibre core successively coated, covering, first light-absorption layer and the heat-conducting layer；And the temperature
The surface of the heat-conducting layer is arranged in degree sensor.
6. optical power detector according to claim 5, which is characterized in that further include: basal layer；
The side of the basal layer is connected with the heat-conducting layer, and the surface of the basal layer is arranged in the temperature sensor；
The basal layer is the substrate that heat-conducting medium layer or surface have heating conduction.
7. optical power detector according to claim 6, which is characterized in that further include: the second light-absorption layer；
Second light-absorption layer is connected with the other side of the basal layer；The material of second light-absorption layer is light absorbent.
8. a kind of optical power measurement method using the described in any item optical power detectors of claim 1-7, which is characterized in that
Include:
Light to be measured is incident to optical fiber, so that the first light-absorption layer of the terminal of the optical fiber absorbs the light to be measured and heats up；
The temperature of first light-absorption layer is transferred to heat-conducting layer, so that the temperature of the heat-conducting layer increases；
According to the first time temperature change of the heat-conducting layer of temperature sensor detection, the power of the light to be measured is obtained.
9. optical power measurement method according to claim 8, which is characterized in that further include:
Light to be measured is removed, heater is heated, so that the heat transfer of the heater is to the heat-conducting layer；
Detect that second of temperature change of the heat-conducting layer is identical as the first time temperature change to the temperature sensor
When, record the electric current and voltage heated at this time to the heater；And stop heating the heater；
The power that heater consumption is obtained based on the electric current and voltage, according to the power of heater consumption and described
The power of light to be measured calibrates detector.
10. a kind of preparation method of the described in any item optical power detectors of claim 1-7 characterized by comprising
The first light-absorption layer is coated on the surface of the terminal of optical fiber, and coats heat-conducting layer on the surface of first light-absorption layer；
On the surface of the heat-conducting layer, temperature sensor is set；
Wherein, the material of first light-absorption layer is light absorbent；The material of the heat-conducting layer is Heat Conduction Material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111624227A (en) * | 2020-06-17 | 2020-09-04 | 南京大学 | Distributed soil body heat conductivity coefficient test system and test method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422883A (en) * | 1977-07-21 | 1979-02-21 | Agency Of Ind Science & Technol | Laser power detector |
| JPS60198419A (en) * | 1984-03-23 | 1985-10-07 | Agency Of Ind Science & Technol | Calorimeter device for measuring transmission power of optical fiber |
| CN205403951U (en) * | 2016-02-29 | 2016-07-27 | 中国工程物理研究院激光聚变研究中心 | Laser energy meter probe |
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2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422883A (en) * | 1977-07-21 | 1979-02-21 | Agency Of Ind Science & Technol | Laser power detector |
| JPS60198419A (en) * | 1984-03-23 | 1985-10-07 | Agency Of Ind Science & Technol | Calorimeter device for measuring transmission power of optical fiber |
| CN205403951U (en) * | 2016-02-29 | 2016-07-27 | 中国工程物理研究院激光聚变研究中心 | Laser energy meter probe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624227A (en) * | 2020-06-17 | 2020-09-04 | 南京大学 | Distributed soil body heat conductivity coefficient test system and test method thereof |
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