CN206400141U - Optoisolator - Google Patents
Optoisolator Download PDFInfo
- Publication number
- CN206400141U CN206400141U CN201621474627.1U CN201621474627U CN206400141U CN 206400141 U CN206400141 U CN 206400141U CN 201621474627 U CN201621474627 U CN 201621474627U CN 206400141 U CN206400141 U CN 206400141U
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- China
- Prior art keywords
- pipe sleeve
- temperature
- optoisolator
- faraday
- heating unit
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Abstract
The utility model provides a kind of optoisolator, it includes pipe sleeve, optoisolator is provided with the first light splitting device in pipe sleeve along optical path direction, Faraday device and the second light splitting device, Faraday device is abutted against on the inwall of pipe sleeve, the perisporium of pipe sleeve is provided with through hole, optoisolator also includes temperature-adjusting device, temperature-adjusting device includes control unit, heating unit and temperature sensor, temperature sensor sets in through-holes and abutted with Faraday device, heating unit abuts against pipe sleeve positioned at the relative outer wall of Faraday device, temperature sensor detects signal to control unit output temperature, control unit is to heating unit output temperature control signal.By to Faraday device monitoring temperature and adjusting temperature to it so that optoisolator is in optimum working temperature, and this case assembling simple in construction is easily and heat transfer efficiency is high.
Description
Technical field
The utility model is related to field of optical equipment, more particularly to a kind of optoisolator.
Background technology
In high powered laser system, in order to prevent influenceing the steady running of laser even in return light return system
Laser internal component is destroyed, optoisolator need to be often added, light is unidirectionally passed through.
However, existing optoisolator is by being provided with optically-active device and light splitting device, when there is strong reflection return
When, by the cooperation of optically-active device and light splitting device make light can not backtracking into laser.Optoisolator
Core component is Farady rotator, and wherein the optical activity coefficient of Farady rotator is due to being influenced by temperature, in summer
Design isolator is in wavelength X during 30 DEG C of environment temperature0The isolation at place is 40dB or so, when winter environment temperature drop is to 0 DEG C
When, isolator is in wavelength X0The isolation at place would fall to 20dB or so, therefore, and the change of temperature has had a strong impact on optoisolator
Isolation effect, laser can be caused to damage when serious so that the maintenance charge that high powered laser system needs to enclose great number is used,
Increase use cost.
The content of the invention
The purpose of this utility model is to provide a kind of optoisolator for realizing temperature adjustment.
In order to realize the purpose of this utility model, the utility model provides a kind of optoisolator, including pipe sleeve, optoisolator
Optical path direction is provided with the first light splitting device, Faraday device and the second light splitting device in pipe sleeve, its
In, Faraday device is abutted against on the inwall of pipe sleeve, and the perisporium of pipe sleeve is provided with through hole, and optoisolator also includes temperature and adjusted
Regulating device, temperature-adjusting device includes control unit, heating unit and temperature sensor, and temperature sensor is set in through-holes simultaneously
Abutted with Faraday device, heating unit abuts against pipe sleeve on the relative outer wall of Faraday device, and temperature is passed
Sensor detects signal to control unit output temperature, and control unit is to heating unit output temperature control signal.
From such scheme, by the way that Faraday device is arranged on the inwall of pipe sleeve, temperature sensor is utilized
Through pipe sleeve perisporium and directly contacted with Faraday device acquisition its actual temperature, be conducive to improve temperature monitoring it is accurate
Degree, and be arranged on using heating unit on the corresponding pipe sleeve perisporium of Faraday device, led using the perisporium of pipe sleeve
Heat, its assembling simple in construction is easily and heat transfer efficiency is high, enabling the temperature to Faraday device is accurately controlled
System, 30 DEG C are maintained at when actual use by Faraday device, then cause optoisolator to be in optimum working temperature.
Further scheme is, the first light splitting device and the second light splitting device abut against the inwall of pipe sleeve
On.
Further scheme is that the optoisolator also includes setting being located at first light splitting device in pipe sleeve
Polarization rotator between second light splitting device, the polarization rotator is optically-active chip or half-wave plate.
Further scheme is that polarization rotator is abutted against on the inwall of pipe sleeve.
Further scheme is that temperature sensor is thermal resistor.
Further scheme is that heating unit is annularly set, and heating unit is enclosed on outside pipe sleeve.
Therefore, the temperature that thermal resistor is obtained is the temperature of Farady rotator, obtains temperature data accurate
Really and cost is low, the heating unit annularly set is enclosed on the outer wall of pipe sleeve, simple in construction, and assembling is easy, and is conducive to carrying
The high efficiency of heating surface and the heat conduction uniformity.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model optoisolator embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
Reference picture 1, Fig. 1 is the structure chart of optoisolator, and optoisolator includes pipe sleeve 1, and pipe sleeve 1 offers through hole along axis
11, pipe sleeve 1 penetratingly offers through hole 12 radially in its perisporium.Optoisolator is in the through hole 11 of pipe sleeve 1 along light path side
To being provided with light splitting device 21, polarization rotator 22, Faraday device 23 and light splitting device 24, polarization spectro
Device 21, polarization rotator 22, Faraday device 23 and light splitting device 24 are abutted against on the inwall of pipe sleeve 1, and
Faraday device 23 is covered on through hole 12.In the present embodiment, polarization rotator 22 can use optically-active chip or half-wave
Piece.
Optoisolator also includes temperature-adjusting device, and temperature-adjusting device includes control unit 31, heating unit 33 and temperature
Sensor 32 is spent, heating unit 33 and temperature sensor 32 are electrically connected with control unit 31 respectively, and temperature sensor 32 is arranged on
Abutted in through hole 12 and with Faraday device 23, heating unit 33 is annularly set, heating unit 33 can be using routine
Such as heating wire is heated, and heating unit 33 is enclosed on outside pipe sleeve 1, and heating unit 33 abuts against pipe sleeve 1 positioned at Faraday
The relative outer wall of device 23.Optoisolator also includes magnet 25, and magnet 25 is arranged on the outside of Faraday device 23, and
Magnetic field is provided positioned at the outside of heating unit 33, and for Faraday device 23, the magnetic field intensity of the magnet is to temperature-insensitive.
During work, temperature sensor 32 is monitored to the temperature of Faraday device 23, and defeated to control unit 31
Go out temperature detection signal, if the temperature of Faraday device 23 is less than 30 DEG C, control unit 31 is defeated to heating unit 33
Go out temperature control signals so that heating unit 33 is heated, then by pipe sleeve 1 transfer heat to light splitting device 21, partially
Shake in circulator 22, Faraday device 23 and light splitting device 24, because Faraday device 23 is by temperature shadow
Heating unit 33 is set the outside of Faraday device 23 by loud critical piece, miscellaneous part to temperature-insensitive, is had
Beneficial to the efficiency of heating surface is improved, then realize that isolator is in optimum working temperature.When the temperature of Faraday device 23 is 30
DEG C when, then control unit 31 control heating unit 33 stop heating so that the temperature of Faraday device 23 is constant at 30 DEG C,
Then ensure optoisolator in wavelength X0The isolation at place will not decline.
In the present embodiment, temperature sensor can be using the conventional sensor such as thermal resistor, and Faraday is filled
Magnetic rotation luminescent crystal can be used by putting, and certain above-described embodiment is preferred embodiment of the present utility model, in actual applications can be with
With more evolutions, the wave plate in such as light path can be replaced with optically-active chip, also can be achieved on the purpose of this utility model.
Claims (6)
1. optoisolator, including pipe sleeve, the optoisolator are provided with the first polarization spectro in the pipe sleeve along optical path direction
Device, Faraday device and the second light splitting device；
It is characterized in that：
The Faraday device is abutted against on the inwall of the pipe sleeve, and the perisporium of the pipe sleeve is provided with through hole；
The optoisolator also includes temperature-adjusting device, and the temperature-adjusting device includes control unit, heating unit and temperature
Sensor is spent, the temperature sensor is arranged in the through hole and abutted with the Faraday device, and the heating is single
Member abuts against the pipe sleeve on the relative outer wall of the Faraday device, and the temperature sensor is single to the control
First output temperature detects signal, and described control unit is to the heating unit output temperature control signal.
2. optoisolator according to claim 1, it is characterised in that：
First light splitting device and the second light splitting device are abutted against on the inwall of the pipe sleeve.
3. optoisolator according to claim 1, it is characterised in that：
The optoisolator, which also includes setting, is located at first light splitting device and second polarization spectro dress in pipe sleeve
Polarization rotator between putting, the polarization rotator is optically-active chip or half-wave plate.
4. optoisolator according to claim 3, it is characterised in that：
The polarization rotator is abutted against on the inwall of the pipe sleeve.
5. optoisolator according to claim 1, it is characterised in that：
The temperature sensor is thermal resistor.
6. the optoisolator according to any one of claim 1 to 5, it is characterised in that：
The heating unit is annularly set, and the heating unit is enclosed on outside the pipe sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474627.1U CN206400141U (en) | 2016-12-29 | 2016-12-29 | Optoisolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474627.1U CN206400141U (en) | 2016-12-29 | 2016-12-29 | Optoisolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206400141U true CN206400141U (en) | 2017-08-11 |
Family
ID=59517076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621474627.1U Active CN206400141U (en) | 2016-12-29 | 2016-12-29 | Optoisolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206400141U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158085A (en) * | 2018-11-08 | 2020-05-15 | 珠海光焱科技有限公司 | Reflection bipolar optical fiber circulator with all ports on same side |
| CN111175902A (en) * | 2018-11-09 | 2020-05-19 | 珠海光焱科技有限公司 | Optical fiber circulator with all ports on same side |
-
2016
- 2016-12-29 CN CN201621474627.1U patent/CN206400141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158085A (en) * | 2018-11-08 | 2020-05-15 | 珠海光焱科技有限公司 | Reflection bipolar optical fiber circulator with all ports on same side |
| CN111175902A (en) * | 2018-11-09 | 2020-05-19 | 珠海光焱科技有限公司 | Optical fiber circulator with all ports on same side |
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