CN107942542A - Optoisolator, laser export head, laser - Google Patents
Optoisolator, laser export head, laser Download PDFInfo
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- CN107942542A CN107942542A CN201711494860.5A CN201711494860A CN107942542A CN 107942542 A CN107942542 A CN 107942542A CN 201711494860 A CN201711494860 A CN 201711494860A CN 107942542 A CN107942542 A CN 107942542A
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- Prior art keywords
- magnetic line
- guiding block
- force
- faraday
- light beam
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/093—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect used as non-reciprocal devices, e.g. optical isolators, circulators
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
- G02F1/0955—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure used as non-reciprocal devices, e.g. optical isolators, circulators
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The present invention relates to laser equipment technical field, there is provided a kind of optoisolator, laser export head and laser, the optoisolator, including：Main part, the main part include：Group of magnets, Faraday component, the first magnetic line of force guiding block and the second magnetic line of force guiding block；The group of magnets has passage, the Faraday component, first magnetic line of force guiding block and second magnetic line of force guiding block are respectively positioned in the passage, and the Faraday component is between first magnetic line of force guiding block and the second magnetic line of force guiding block；Magnetic field is formed between first magnetic line of force guiding block and second magnetic line of force guiding block, the Faraday component includes faraday components, and the light beam and the angle of the magnetic line of force in the magnetic field propagated in the faraday components are zero degree to 45 degree.In the above manner, first magnetic line of force guiding block and the second magnetic line of force bootstrap block collect the open magnetic line of force propagated, improve the magnetic field intensity residing for faraday components, so that the optically-active angle of bigger is obtained under limited faraday components size, so that optoisolator in the sizes of faraday components further reduce, reduce cost.
Description
【Technical field】
The present invention relates to laser equipment technical field, more particularly to a kind of optoisolator, the laser with this optoisolator
Export head and the laser with this laser export head.
【Background technology】
Optoisolator, is also isolator, is a kind of Passive Optical Components for allowing Unidirectional light to pass through, its operation principle is base
In the nonreciprocity of Faraday rotation.It can be isolated well by optoisolator by the light of optical fiber echo reflection.Optoisolator
The main Faraday effect for utilizing magneto-optical crystal.The characteristic of optoisolator is：Positive insertion loss is low, and reverse isolation degree is high, returns
Ripple loss is high.Optoisolator is to allow light to direction by preventing the passive device passed through round about, and effect is
The direction of light is limited, make light can only one direction transmission, can be fine by optoisolator by the light of optical fiber echo reflection
Isolation, improve light wave transmissions efficiency.
In the implementation of the present invention, inventor has found that the prior art has at least the following problems：Existing light every
From in device, often because needing stronger magnetic field intensity so that the size of the faraday components and optoisolator is larger, so that
Cause cost excessive.
【The content of the invention】
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of size is small, cost is low optoisolator, has
The laser export head of this optoisolator and the laser with this laser export head.
In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme：
A kind of optoisolator, including：Main part, the main part include：Group of magnets, Faraday component, first magnetic line of force
Guiding block and the second magnetic line of force guiding block；
The group of magnets has passage, the Faraday component, first magnetic line of force guiding block and described second
Magnetic line of force guiding block is respectively positioned in the passage, and the Faraday component is located at first magnetic line of force guiding block and second
Between magnetic line of force guiding block；
Magnetic field, the Faraday are formed between first magnetic line of force guiding block and second magnetic line of force guiding block
Component includes faraday components, and the light beam and the angle of the magnetic line of force in the magnetic field propagated in the faraday components are that zero degree arrives
45 degree.
In certain embodiments, first magnetic line of force guiding block and second magnetic line of force guiding block with the magnet
Group is hinged；The optoisolator further includes rotating member and connector, and the rotating member is fixed with first magnetic line of force guiding block
Connection, for driving first magnetic line of force guiding block to rotate, one end of the connector and first magnetic line of force guiding block
Hinged, the other end is hinged with second magnetic line of force guiding block.
In certain embodiments, it is bar path by the light beam of the faraday components, first magnetic line of force
Guiding block is parallel with the light beam towards the side of the light beam, and second magnetic line of force guiding block is towards the side of the light beam
It is parallel with the light beam；First magnetic line of force guiding block is towards the side of the light beam and second magnetic line of force guiding block court
It is equal to the width of the light beam to the spacing of the side of the light beam.
In certain embodiments, it is reflected light path by the light beam of the faraday components, the light beam is entering
It is incident section light beam before the faraday components, is outgoing section light beam, first magnetic after faraday components injection
Line of force guiding block is parallel with the incident section light beam towards the side of the incident section light beam, and is close to the incident section light beam
Edge；Second magnetic line of force guiding block is parallel with the outgoing section light beam towards the side of the outgoing section light beam, and tightly
It is affixed on the edge of the outgoing section light beam.
In certain embodiments, the area on first magnetic line of force guiding block towards the surface of the faraday components is small
Area in it away from the surface of the faraday components；Towards the faraday components on second magnetic line of force guiding block
The area on surface is less than its area away from the surface of the faraday components.
In certain embodiments, the Faraday component further includes the first beam splitter, the second beam splitter and half-wave plate,
First beam splitter and the second beam splitter are respectively arranged at the both sides of the faraday components, and the half-wave plate is arranged at described
Between faraday components and first beam splitter or between the faraday components and second beam splitter.
In certain embodiments, the Faraday component further includes half-wave plate adjusting mechanism, and the half-wave plate is adjusted
Mechanism includes：Rotation axis, first gear, second gear, rack and knob, the first gear share two, are sheathed on respectively
The both ends of the rotation axis, the outer rim of the half-wave plate are provided with screw thread, and one of first gear is engaged with the half-wave plate,
And the half-wave plate can be driven to rotate, the knob is fixedly connected with the second gear, the rack respectively with another
First gear and the second gear engagement.
In certain embodiments, the group of magnets includes the first group of magnets and the second group of magnets；The first group of magnets bag
Include the first magnet, the second magnet and the 3rd magnet, the magnetic line of force inside first magnet and the magnetic inside second magnet
The line of force is vertical, and the magnetic line of force inside first magnet is parallel with the magnetic line of force inside the 3rd magnet and direction is opposite；
Second group of magnets includes the 4th magnet, the 5th magnet and the 6th magnet, the magnetic line of force inside the 4th magnet with it is described
The magnetic line of force inside 5th magnet is vertical, and the magnetic line of force inside the 4th magnet is put down with the magnetic line of force inside the 6th magnet
Go and direction is opposite.
In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme：A kind of laser export head, including with
The upper optoisolator.
In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme：A kind of laser, including above institute
The laser export head stated.
Compared with prior art, the optoisolator of the embodiment of the present invention, including：Main part, the main part include：Magnet
Group, Faraday component, the first magnetic line of force guiding block and the second magnetic line of force guiding block；The group of magnets has passage, described
Faraday component, first magnetic line of force guiding block and second magnetic line of force guiding block are respectively positioned in the passage, institute
Faraday component is stated between first magnetic line of force guiding block and the second magnetic line of force guiding block；First magnetic line of force
Magnetic field is formed between guiding block and second magnetic line of force guiding block, the Faraday component includes faraday components, institute
The angle for stating the magnetic line of force in the light beam and magnetic field propagated in faraday components is zero degree to 45 degree.By with top
Formula, the first magnetic line of force guiding block and the second magnetic line of force bootstrap block collect the open magnetic line of force propagated, and improve residing for faraday components
Magnetic field intensity so that the optically-active angle of bigger is obtained under limited faraday components size so that optoisolator
In the sizes of faraday components further reduce, reduce cost.
【Brief description of the drawings】
One or more embodiments are illustrative by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in attached drawing are expressed as similar element, remove
Non- have a special statement, and composition does not limit the figure in attached drawing.
Fig. 1 is a kind of structure diagram for optoisolator that a wherein embodiment of the invention provides；
Fig. 2 is the structure diagram of first and second group of magnets and Faraday component in the optoisolator shown in Fig. 1；
Fig. 3 is the structure diagram of half-wave plate and half-wave plate adjusting mechanism in the Faraday component shown in Fig. 2；
Fig. 4 is the structural representation side view for the optoisolator that a wherein embodiment of the invention provides；
Fig. 5 is the sectional view of optoisolator in Fig. 4；
Fig. 6 is another sectional view of the optoisolator in some other embodiment；
Fig. 7 is another structure diagram for the optoisolator that a wherein embodiment of the invention provides.
【Embodiment】
For the ease of understanding the present invention, below in conjunction with the accompanying drawings and specific embodiment, the present invention will be described in more detail.
It should be noted that when element is expressed " being fixed on " another element, it can directly on another element or therebetween
There may be one or more elements placed in the middle.When an element is expressed " electrical connection " another element, it can be direct
It is connected to another element or there may be one or more elements placed in the middle therebetween.Term used in this specification
The orientation or position relationship of the instruction such as " on ", " under ", " interior ", " outer ", " bottom " are to be closed based on orientation shown in the drawings or position
System, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " the
One ", " second " " 3rd " etc. is only used for description purpose, and it is not intended that instruction or hint relative importance.
Unless otherwise defined, technical and scientific term all used in this specification is led with belonging to the technology of the present invention
The normally understood implication of technical staff in domain is identical.It is specific to be intended merely to description for used term in the description of the invention
Embodiment purpose, be not intended to limitation the present invention.Term "and/or" used in this specification includes one or more phases
The arbitrary and all combination of the Listed Items of pass.
In addition, as long as technical characteristic involved in invention described below difference embodiment is not formed each other
Conflict can be combined with each other.
As shown in Figure 1, a kind of optoisolator 100 that a wherein embodiment of the invention provides includes：Main part as shown in Figure 4
10, the main part 10 includes group of magnets, Faraday component 13, the first magnetic line of force guiding block 14, the second magnetic line of force guiding block
15 and main part housing 16.The group of magnets, Faraday component 13, the first magnetic line of force guiding block 14, the guiding of second magnetic line of force
Block 15 is respectively positioned in the main part housing 16.
The host shell 16 is provided with 161 and second through hole 162 of first through hole, the center line of the first through hole 161
Overlapped with the center line of the second through hole 162.The group of magnets has passage 101, and the passage 101 runs through the group of magnets.Institute
Align and connect with 161 and second through hole 162 of first through hole respectively in the both ends for stating passage 111.The Faraday group
Part 13 is located in the passage 101.First magnetic line of force guiding block 14 and the second magnetic line of force guiding block 15 are respectively positioned on described logical
In road 101, and the Faraday component 13 is located at first magnetic line of force guiding block 14 and the second magnetic line of force guiding block
Between 15.
The specific arrangement mode of the group of magnets is Halbach array, it includes the first group of magnets 11 and the second group of magnets
12, first group of magnets 11 includes the first magnet 111, the second magnet 112 and the 3rd magnet 113, in first magnet 111
The magnetic line of force in portion is vertical with the magnetic line of force inside second magnet 112, the magnetic line of force inside first magnet 111 with it is described
The magnetic line of force inside 3rd magnet 113 is parallel and direction is opposite.
Second group of magnets 12 includes the 4th magnet 121, the 5th magnet 122 and the 6th magnet 123, the 4th magnet
The magnetic line of force inside 121 is vertical with the magnetic line of force inside the 5th magnet 122, the magnetic line of force inside the 4th magnet 121
It is parallel with the magnetic line of force inside the 6th magnet 123 and direction is opposite.
As shown in Fig. 2, the Faraday component 13 includes faraday components 131,132, second points of the first beam splitter
Beam device 133 and half-wave plate 134.First beam splitter, 132 and second beam splitter 133 is respectively arranged at the faraday components
131 both sides.The half-wave plate 134 is arranged between the faraday components 131 and first beam splitter 132 or described
Between faraday components 131 and second beam splitter 133.
In the present embodiment, the half-wave plate 134 is arranged at the faraday components 131 and second beam splitter 133
Between.Non-polarized light is separated into O light and the orthogonal polarised light of two beam of E light, faraday components 131 by first beam splitter
O light and E light can be rotated first angle, then O light and E illumination is incident upon half-wave plate 134.The half-wave plate 134 is by O light and E
Light rotates second angle.The sum of first angle and second angle are 90 degree, and O light and E light exchange after rotating twice
(that is, becoming E light after O light rotated ninety degrees, become O light after E light rotated ninety degrees), finally pools in the second beam splitter 133
Light beam.In terms of light echo direction, non-polarized light is separated into O light and the mutually perpendicular polarization of two beam of E light by the second beam splitter 133
Two-beam is rotated second angle by light, half-wave plate 134, and two-beam opposite direction is rotated first angle by faraday components 131, is passed through
Rotate twice, two beam polarised lights all have rotated zero degree, and final two-beam is completely separable in the first beam splitter 132, and O light and E
Light cannot be by the light hole of the first beam splitter 132, therefore has the function that to isolate light echo.
As shown in figure 3, in the present embodiment, the Faraday component 13 further includes half-wave plate adjusting mechanism, should be partly
Wave plate adjusting mechanism specifically includes：Rotation axis 135, first gear 136, second gear 137, rack 138 and knob 139.It is described
The both ends of rotation axis 135 are respectively fixed with a first gear 136.The outer rim of the half-wave plate 134 is provided with screw thread, wherein one
A first gear 136 is engaged with the half-wave plate 134, and the half-wave plate 134 can be driven to rotate,.The rotation axis 135 is located at institute
State in main part housing 16, and it is hinged with the host shell 16, and two first gears 136 are sheathed on the rotation axis respectively
135 both ends, and the rotation axis of the first gear 136 is overlapped with the pivot center of the rotation axis 135.The knob
139 one end is located at the outside of the host shell 16, and the other end is inserted into the inside of the host shell 16, and with described second
Gear 137 is fixedly connected.The rack 138 is engaged with first gear one of them described 136 and second gear 137 respectively.Turn
One end of the knob 139 is moved, the second gear 137 can be driven to be rotated around the rotation axis of the knob 139.Described second
Gear 137 can drive the rack 138 to do straight reciprocating motion along its axial direction, so as to drive one of them described first gear
136 rotate, to achieve the purpose that to adjust 134 angle of half-wave plate.It is corresponding with the rack 138 on the host shell 16
Position at be additionally provided with observation port 163, the surface of the rack 138 towards the observation port 163 is provided with scale, the scale
Corresponding to the angle of inclination of the half-wave plate 134.That is, the scale currently shown can be observed by observation port, to obtain described half
The current angle of inclination of wave plate 134, to achieve the purpose that precisely to adjust.To adjust the angle of inclination of the half-wave plate 134
More accurate, the diameter of the first gear 136 is more than the diameter of the second gear 137, that is, is adjusting the half-wave plate 134
Angle during, the rotational angle of the second gear 137 is more than the angle of inclination of the first gear 136.
As shown in Figures 4 and 5, first magnetic line of force guiding block 14 and the second magnetic line of force guiding block 15 are respectively positioned on the passage
In 101, and the faraday components 131 be located at first magnetic line of force guiding block 14 and the second magnetic line of force guiding block 15 it
Between.First magnetic line of force guiding block 14 is used to collect the magnetic force that 11 and second group of magnets 12 of the first group of magnets opens propagation
Line, and it is propagated to the second magnetic line of force guiding block 15.First magnetic line of force guiding block 14 and the second magnetic line of force guiding block 15
Between form magnetic field, the light beam transmitted in the faraday components 131 is located in the magnetic field.Pass through first in the embodiment of the present invention
Magnetic line of force guiding block 14 collects the open magnetic line of force propagated, and improves the magnetic field intensity residing for faraday components 131 so that limited
131 size of faraday components under obtain the optically-active angle of bigger.So that optoisolator 100 in faraday components 131
Size further reduces, and reduces cost.
First magnetic line of force guiding block 14 and first magnet 111 are hinged, second magnetic line of force guiding block 15 with
3rd magnet 113 is hinged.The optoisolator 100 further includes transmission mechanism, the transmission mechanism include rotating member 171,
Shaft 172 and connector 173.First magnetic line of force guiding block 14 is cut with scissors by the shaft 172 and first magnet 111
Connect, second magnetic line of force guiding block 15 is hinged by another shaft 172 and the 3rd magnet 113.The rotating member
171 through first magnet 111 and first magnetic line of force guiding block 14, it can drive first magnetic line of force guiding block 14
Rotate.One end of the connector 173 is hinged with first magnetic line of force guiding block 14, and the other end is led with second magnetic line of force
It is hinged to draw block 15.When first magnetic line of force guiding block 14 rotates, second magnetic force can be driven by the connector 173
Line guiding block 15 rotates.First magnetic line of force guiding block 14 is towards the surface of the faraday components 131 and second magnetic
The surface of line of force guiding block 15 towards the faraday components 131 is parallel all the time.
In the present embodiment, as shown in figure 5, when the light path for passing through the faraday components 131 is bar path, light beam
X passes through the faraday components 131, the light beam X in the faraday components and first magnetic line of force guiding block 14 and second
The angle of the magnetic line of force is α in magnetic field between magnetic line of force guiding block 15.When first magnetic line of force guiding block 14 and second magnetic line of force
When guiding block 15 rotates, the direction of the magnetic line of force and the angle α of the light beam X in the faraday components 131 in its magnetic field formed
It is corresponding to change.The value range of the angle α is zero degree to 45 degree.In a preferred embodiment, in the ideal situation,
The angle α is zero degree, i.e., the described magnetic line of force is parallel with the light beam X.To cause the angle α as far as possible close to zero, to need to adjust
Save the angle of first magnetic line of force guiding block 14 and the second magnetic line of force guiding block 15 so that first magnetic line of force guiding block 14
Parallel with light beam X towards the side of light beam X, second magnetic line of force guiding block 15 is parallel with light beam X towards the side of light beam X.
First magnetic line of force guiding block 14 is towards the side of light beam X and second magnetic line of force guiding block 15 towards light beam X's at this time
Side is parallel to each other, and its spacing is equal to the width of the light beam X.
In some other embodiment, as shown in fig. 6, when the light path for passing through the faraday components 131 is reflected light path
When, the both ends of faraday components 131 are each provided with a reflecting surface, for making incident section light beam X1 enter faraday components 131
Behind one end, pass through multiple reflections in faraday components 131, projected from the other end of faraday components 131, form outgoing Duan Guang
Beam X2.Light forms multiple light beam X3 in the faraday components 131.The angle of each light beam X3 and the magnetic line of force should all
Less than 45 degree.To cause the angle α that as far as possible close to zero, first magnetic line of force guiding block 14 and the second magnetic need to be adjusted
The angle of line of force guiding block 15 so that first magnetic line of force guiding block 14 is towards the side of incident section light beam X1 and incident section light
Beam X1 is parallel, and second magnetic line of force guiding block 15 is parallel with outgoing section light beam X2 towards the side of outgoing section light beam X2.It is described
It is close to the edge of incident section light beam X1, the side of second magnetic line of force guiding block 15 in the side of first magnetic line of force guiding block 14
It is close to the edge of outgoing section light beam X2.
The area on surface of first magnetic line of force guiding block 14 towards the faraday components 131 is less than it away from described
The area on the surface of faraday components 131.Second magnetic line of force guiding block 15 is towards the surface of the faraday components 131
Area is less than its area away from the surface of the faraday components 131.First magnetic line of force guiding block 14 deviates from the method
Draw the surface of element 131 larger, be conducive to collect more magnetic lines of force；First magnetic line of force guiding block 14 is towards the method
The surface of element 131 is drawn to increase the density of the magnetic line of force in magnetic field compared with I, so as to increase magnetic field intensity.First magnetic line of force
The preferred material of 14 and second magnetic line of force guiding block 15 of guiding block is pure iron, glass not alloy or DT4E etc..Do not blocking light beam
Under conditions of propagation, the width on surface of first magnetic line of force guiding block 14 towards the faraday components 131 is close to above-mentioned
The width of first magnet 111.
Optoisolator further includes the incident collimater 20 being connected respectively with 10 both ends of main part and beam-expanding system 30.
Beam-expanding system 30 can specifically include：Biconcave lens 31, planoconvex spotlight 32, lens barrel 33.Beam-expanding system 30 will pass through
The less beam expander of beam diameter realizes that relatively long distance is transmitted into the larger light beam of beam diameter after main part 10.In order to be lifted
The quality of light beam, can also correct the number quantity and form of biconcave lens or planoconvex spotlight.Beam-expanding system 30 can be with the master
Part 10 is processed into a component, can also be split up into two components.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this
Under the thinking of invention, it can also be combined between the technical characteristic in above example or different embodiment, step can be with
Realized with random order, and there are many other changes of different aspect present invention as described above, for simplicity, they do not have
Have and provided in details；Although the present invention is described in detail with reference to the foregoing embodiments, the ordinary skill people of this area
Member should be understood：It can still modify the technical solution described in foregoing embodiments, or to which part skill
Art feature carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each reality of the present invention
Apply the scope of a technical solution.
Claims (10)
- A kind of 1. optoisolator, it is characterised in that including：Main part, the main part include：Group of magnets, Faraday component, One magnetic line of force guiding block and the second magnetic line of force guiding block；The group of magnets has passage, the Faraday component, first magnetic line of force guiding block and second magnetic force Line guiding block is respectively positioned in the passage, and the Faraday component is located at first magnetic line of force guiding block and the second magnetic force Between line guiding block；Magnetic field, the Faraday component are formed between first magnetic line of force guiding block and second magnetic line of force guiding block Including faraday components, the light beam and the angle of the magnetic line of force in the magnetic field propagated in the faraday components are zero degree to 40 Five degree.
- 2. optoisolator according to claim 1, it is characterised in thatFirst magnetic line of force guiding block and second magnetic line of force guiding block are hinged with the group of magnets；The optoisolator further includes rotating member and connector, and the rotating member is fixed with first magnetic line of force guiding block to be connected Connect, for driving first magnetic line of force guiding block to rotate, one end of the connector is cut with scissors with first magnetic line of force guiding block Connect, the other end is hinged with second magnetic line of force guiding block.
- 3. optoisolator according to claim 1, it is characterised in thatThe light beam by the faraday components is bar path, and first magnetic line of force guiding block is towards the light beam Side is parallel with the light beam, and second magnetic line of force guiding block is parallel with the light beam towards the side of the light beam；First magnetic line of force guiding block is towards the side of the light beam and second magnetic line of force guiding block towards the light beam Side spacing be equal to the light beam width.
- 4. optoisolator according to claim 1, it is characterised in that it is anti-to pass through the light beam of the faraday components Light path is penetrated, the light beam is incident section light beam before the faraday components are entered, and is after faraday components injection Section light beam is emitted, first magnetic line of force guiding block is parallel with the incident section light beam towards the side of the incident section light beam, And it is close to the edge of the incident section light beam；Second magnetic line of force guiding block towards it is described outgoing section light beam side and institute It is parallel to state outgoing section light beam, and is close to the edge for being emitted section light beam.
- 5. optoisolator according to claim 1, it is characterised in thatArea on first magnetic line of force guiding block towards the surface of the faraday components deviates from the faraday less than it The area on the surface of element；Area on second magnetic line of force guiding block towards the surface of the faraday components is carried on the back less than it From the area on the surface of the faraday components.
- 6. optoisolator according to claim 1, it is characterised in thatThe Faraday component further includes the first beam splitter, the second beam splitter and half-wave plate, first beam splitter and Two beam splitters are respectively arranged at the both sides of the faraday components, and the half-wave plate is arranged at the faraday components and described the Between one beam splitter or between the faraday components and second beam splitter.
- 7. optoisolator according to claim 6, it is characterised in thatThe Faraday component further includes half-wave plate adjusting mechanism, and the half-wave plate adjusting mechanism includes：Rotation axis, first Gear, second gear, rack and knob, the first gear share two, are sheathed on the both ends of the rotation axis respectively, described The outer rim of half-wave plate is provided with screw thread, and one of first gear is engaged with the half-wave plate, and can drive the half-wave plate Rotate, the knob is fixedly connected with the second gear, the rack respectively with first gear another described and the second tooth Wheel engagement.
- 8. optoisolator according to claim 1, it is characterised in thatThe group of magnets includes the first group of magnets and the second group of magnets；First group of magnets includes the first magnet, the second magnet With the 3rd magnet, the magnetic line of force inside first magnet is vertical with the magnetic line of force inside second magnet, first magnetic The magnetic line of force inside iron is parallel with the magnetic line of force inside the 3rd magnet and direction is opposite；Second group of magnets includes the 4th magnet, the 5th magnet and the 6th magnet, the magnetic line of force inside the 4th magnet with The magnetic line of force inside 5th magnet is vertical, the magnetic line of force inside the 4th magnet and the magnetic force inside the 6th magnet Line is parallel and direction is opposite.
- 9. a kind of laser export head, it is characterised in that including the optoisolator as any one of claim 1-8.
- 10. a kind of laser, it is characterised in that including laser export head as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711494860.5A CN107942542A (en) | 2017-12-31 | 2017-12-31 | Optoisolator, laser export head, laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711494860.5A CN107942542A (en) | 2017-12-31 | 2017-12-31 | Optoisolator, laser export head, laser |
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| Publication Number | Publication Date |
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| CN107942542A true CN107942542A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711494860.5A Pending CN107942542A (en) | 2017-12-31 | 2017-12-31 | Optoisolator, laser export head, laser |
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| WO2021256255A1 (en) * | 2020-06-15 | 2021-12-23 | 日本電気硝子株式会社 | Magnetic circuit, faraday rotator, and magneto-optic device |
| WO2021256256A1 (en) * | 2020-06-15 | 2021-12-23 | 日本電気硝子株式会社 | Magnetic circuit, faraday rotator, and magneto-optic device |
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Application publication date: 20180420 |