CN106019644B - A kind of single-stage isolated device core and its manufacture craft - Google Patents
A kind of single-stage isolated device core and its manufacture craft Download PDFInfo
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- CN106019644B CN106019644B CN201610624911.0A CN201610624911A CN106019644B CN 106019644 B CN106019644 B CN 106019644B CN 201610624911 A CN201610624911 A CN 201610624911A CN 106019644 B CN106019644 B CN 106019644B
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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
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Abstract
The present invention relates to a kind of single-stage isolated device cores, including magnet ring, Faraday rotator, first wedge cornual plate and the second angle of wedge piece are installed in magnet ring, it further include the connection ring being arranged in the magnet ring, the outer wall of connection ring is connected on the inner wall of magnet ring, the inner wall of connection ring is equipped with erecting bed, and Faraday rotator is arranged on erecting bed.The program, Faraday rotator is fixed on the erecting bed of connection ring, first wedge cornual plate and the second angle of wedge piece are separately fixed to the both ends of connection ring, insertion loss is influenced because glue leaks so as to avoid Faraday rotator and first wedge cornual plate, the second angle of wedge piece junction, pass through the setting of connection ring simultaneously, facilitate the adjustment of first wedge cornual plate and the second angle of wedge piece to install, can be improved yield rate.The production method that the present invention also proposes the isolator core has easy for installation using technique of the invention, and step is simple, the advantages of capable of reducing insertion loss, improve yield rate.
Description
Technical field
The present invention relates to a kind of single-stage isolated device core and its manufacture crafts, belong to technical field of optical fiber communication.
Background technique
Optoisolator is a kind of loss for having very little to positive light, has the optical passive component of very big decaying to backlight,
It is able to suppress undesirable reflecting light in optical communication system and the stable operation of system is guaranteed to the adverse effect of light source, be big
Commonly used and indispensable a kind of device in capacity optical communication system.Optoisolator is by it to transmission optical polarization
Degree of dependence can be divided into polarization relationship type and polarization independent type.No matter the characteristics of polarizing relationship type is to input the polarization of light wave
How is state, and the light wave exported by it will all become the linearly polarized light for having determining polarization direction, in this way for being unsatisfactory for inputting
The transmission light that polarization state requires will all be attenuated the light intensity of half, reduce the application efficiency of transmission light wave.Polarization independent type
The characteristics of be that transmit light is divided into two bundles polarised light in optoisolator, then by rotatory polarization state, then couples, again except delustering
Except the inevitable decaying that reflection and scattering of the beam in transmission process at each optical element generate, do not produce theoretically
Other raw losses.It is in the application of reality to need optical device insensitive to the polarization state of transmission light wave more, so as under a variety of occasions
The requirement of adaptation system.Existing than pressing in more typical polarization independent type, the optoisolator for realizing function using bulk crystals
It is divided into single-stage isolated device and Double-stage isolator according to the characteristics of its isolation structure, the isolation of Double-stage isolator is greater than single-stage, but
Insertion loss is also big, and due to being more than single step arrangement using crystal element quantity, will in cost, in technology difficulty
It is higher.
It is entitled " a kind of polarization unrelated fibre optic isolater " in 204945528 U of Authorization Notice No. CN, China it is practical
In new patent, a kind of unrelated fibre optic isolater of polarization, including magnet ring, Faraday rotator, first wedge cornual plate, second are disclosed
Angle of wedge piece, the first optical fiber collimator and the second optical fiber collimator, the Faraday rotator are arranged in magnet ring, first wedge cornual plate
It is mounted on the left side for being located at Faraday rotator in magnet ring, the second angle of wedge piece is mounted on the right side for being located at Faraday rotator in magnet ring
Side, the crystallographic axis of the second angle of wedge piece are in 45 ° of angles relative to first wedge cornual plate, and the left side outside magnet ring is arranged in the first optical fiber collimator
Side, the second optical fiber collimator are arranged in the right-hand end outside magnet ring, and the loss of the Faraday rotator is 0.02~
0.06dB。
In application publication number CN1402051, in entitled " a kind of polarization independent type optical isolator and its manufacturing method "
In state's application for a patent for invention, a kind of optoisolator is disclosed, is mainly revolved by light beam input unit, polarization selectivity device, polarization
Rotary device and light beam output device composition, the polarization selectivity device are polarized by the first polarization selectivity device and second respectively
Selective device composition；Along positive optical path, the light beam input unit is located at head end, and the first polarization selectivity device is located at
Between the light beam input unit and the polarization rotation device, the second polarization selectivity device is located at polarization rotation
Between device and the light beam output device；The first polarization selectivity device is by one piece of angle of wedge shape birefringece crystal institute group
At；The second polarization selectivity device is by the angle of wedge of one piece of angle of wedge rotation direction opposite with the first polarization selectivity device
Shape birefringece crystal is formed；The angle of wedge face of the angle of wedge shape birefringece crystal corresponds respectively to the light beam input unit and institute
State light beam output device；The angle of wedge shape birefringece crystal of the first polarization selectivity device and the second polarization selectivity device point
It Wei not the opposite positive and negative birefringece crystal of birefringent effect.
In optoisolator in above-mentioned patent, as core component, optoisolator core includes magnet ring, is arranged in magnet ring
Faraday rotator and the first wedge cornual plate and the second angle of wedge piece for being separately positioned on Faraday rotator two sides.This isolator
In the fabrication process, the glue to fixed Faraday rotator, first wedge cornual plate and the second angle of wedge piece can sometimes seep core
To causing at the joint face of angle of wedge piece and Faraday rotator, insertion loss is big, influence light transmission and defect rate is higher thoroughly
The shortcomings that.
In consideration of it, the present inventor carries out in-depth study to the above problem, there is this case generation then.
Summary of the invention
The purpose of the present invention is to provide a kind of optoisolator cores that can be improved yield rate, guarantee optical transport effect.
Another object of the present invention can reduce slotting providing a kind of manufacture craft of single-stage isolated device core, the manufacture craft
The yield rate for entering loss, improving the assembling of isolator core.
In order to achieve the above object, the present invention uses such technical solution:
A kind of single-stage isolated device core, including magnet ring are installed with Faraday rotator, first wedge cornual plate and in magnet ring
Two angle of wedge pieces, first wedge cornual plate and the second angle of wedge piece set up separately in the two sides of Faraday rotator, further include being arranged in the magnet ring
Interior connection ring, the outer wall of connection ring are connected on the inner wall of the magnet ring, and the inner wall of connection ring is equipped with erecting bed, the farad
Rotator is arranged on erecting bed, and connection ring is set as first end along axial one end, and first end is equipped with the first opening, connection ring
It is set as second end along the axial other end, second end is equipped with the second opening, forms light between the first opening and the second opening and pass
Defeated channel, in the first end, second angle of wedge piece is arranged in the second end for the first wedge cornual plate setting.
As a kind of preferred embodiment of the invention, the connection ring is steel loop.
As a kind of preferred embodiment of the invention, the erecting bed is annular brace platform.
As a kind of preferred embodiment of the invention, the crystallographic axis of the first wedge cornual plate is in relative to second angle of wedge piece
45 ° of angles.
As a kind of preferred embodiment of the invention, the Faraday rotator is fixed on the erecting bed by adhesive
On, the first wedge cornual plate is fixed on the first end by adhesive, and second angle of wedge piece is fixed on institute by adhesive
Second end is stated, the connection ring is fixed on the inner wall of the magnet ring by adhesive.
The production method that the present invention also proposes a kind of single-stage isolated device core, which includes magnet ring, in magnet ring
It is inside installed with Faraday rotator, first wedge cornual plate and the second angle of wedge piece, first wedge cornual plate and the second angle of wedge piece set up separately in method
The two sides of rotator are drawn, further include the connection ring being arranged in the magnet ring, the outer wall of connection ring is connected to the magnet ring
On inner wall, the inner wall of connection ring is equipped with erecting bed, and the Faraday rotator is arranged on erecting bed, and connection ring is along axial one
End is set as first end, and first end is equipped with the first opening, and connection ring is set as second end along the axial other end, and second end is equipped with second
Opening, forms light transmission channel between the first opening and the second opening, the first wedge cornual plate is arranged in the first end, institute
It states the second angle of wedge piece to be arranged in the second end, production method includes the following steps:
A, the processing of connection ring: the selection company adaptable with Faraday rotator, first wedge cornual plate and the second angle of wedge piece
Ring is connect, and cleaning treatment is carried out to connection ring；
B, the fixation of Faraday rotator: Faraday rotator is fixed on the erecting bed of connection ring；
C, the fixation of first wedge cornual plate: first wedge cornual plate is fixed in the first end of connection ring；
D, the fixation of connection ring: connection ring is put on the inner wall in magnet ring and being fixed on magnet ring；
E, the second angle of wedge piece: being placed on the second end of connection ring by the installation of the second angle of wedge piece, passes through second angle of wedge of switch
Piece adjusts the insertion loss of isolator core to suitable numerical value, and the second angle of wedge piece is fixed on to the second end of connection ring.
Connection ring is placed in filter screen plate in step as a kind of preferred embodiment of the invention, filter screen plate is put
Enter beaker, alcohol is poured into beaker, 20min is cleaned in supersonic wave cleaning machine, filter screen plate taking-up is placed on glass later
In ware, in 110 DEG C of oven, 30min is toasted.
As a kind of preferred embodiment of the invention, in stepb, 4 point 353ND are uniformly put on the erecting bed of connection ring
Faraday rotator is placed on erecting bed by glue, and 60min is toasted in 110 DEG C of hot plate makes glue curing.
As a kind of preferred embodiment of the invention, in step C, upper 2 point OG154 glue is uniformly put in the first end of connection ring,
And curing process is carried out with UV lamp irradiation 15S, uniformly put at upper 2 points in the first end of connection ring and the junction of first wedge cornual plate
353ND glue toasts 30min in 110 DEG C of hot plate, is solidified；In step D, 353NDT glue is enclosed in the inner wall point one of magnet ring,
Connection ring is placed into magnet ring, and in 110 DEG C of hot plate, toasts 60min.
It,, will in the uniform 4 point OG154 glue of the second end of connection ring in step E as a kind of preferred embodiment of the invention
Second angle of wedge piece is temporarily fixed to the second end of connection ring, and isolator core is connected in detection device and is detected, by second
Angle of wedge piece dials to suitable position, toasts in four angle point point 353ND glue of the second angle of wedge piece in 110 DEG C of hot plate
60min is solidified.
After technical solution of the present invention, Faraday rotator is fixed on the erecting bed of connection ring, by first wedge
Cornual plate and the second angle of wedge piece are separately fixed at the both ends of connection ring, so as to avoid Faraday rotator and first wedge cornual plate, the
Two angle of wedge piece junctions influence insertion loss because glue leaks, while by the setting of connection ring, facilitate first wedge cornual plate and
The adjustment of second angle of wedge piece is installed, and can be improved yield rate.
Using technique of the invention, have easy for installation, step is simple, can reduce insertion loss, improve yield rate
Advantage.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of connection ring in the present invention；
In figure:
10- magnet ring 20- Faraday rotator
30- first wedge cornual plate 40- second angle of wedge piece
50- connection ring 51- first end
52- second end 53- light transmission channel
54- erecting bed
Specific embodiment
In order to further explain the technical solution of the present invention, being described in detail with reference to the accompanying drawing.
Referring to Figures 1 and 2, a kind of single-stage isolated device core, including magnet ring 10, are installed with Faraday rotator in magnet ring 10
20, first wedge cornual plate 30 and the second angle of wedge piece 40, first wedge cornual plate 30 and the second angle of wedge piece 40 set up separately in Faraday rotator
20 two sides, further include the connection ring 50 being arranged in the magnet ring 10, and the outer wall of connection ring 50 is connected to the magnet ring 10
On inner wall, the inner wall of connection ring 50 is equipped with erecting bed 54, and the Faraday rotator 20 is arranged on erecting bed 54, connection ring 50
It is set as first end 51 along axial one end, first end 51 is equipped with the first opening, and connection ring 50 is set as second along the axial other end
End 52, second end 52 are equipped with the second opening, form light transmission channel 53, the first wedge between the first opening and the second opening
The setting of cornual plate 30 is arranged in the first end 51, second angle of wedge piece 40 in the second end 52.Wherein, magnet ring 10, first
The specific structure of angle of wedge piece 30, the second angle of wedge piece 40 and Faraday rotator 20 is disclosed in the prior art, here not
It is described in detail again.
As a kind of preferred embodiment of the invention, the connection ring 50 is steel loop.
As a kind of preferred embodiment of the invention, the erecting bed 54 is annular brace platform.
As a kind of preferred embodiment of the invention, the crystallographic axis of the first wedge cornual plate 30 is relative to second angle of wedge piece 40
In 45 ° of angles.
As a kind of preferred embodiment of the invention, the Faraday rotator 20 is fixed on the erecting bed by adhesive
On 54, the first wedge cornual plate 30 is fixed on the first end 51 by adhesive, and second angle of wedge piece 40 passes through adhesive
It is fixed on the second end 52, the connection ring 50 is fixed on the inner wall of the magnet ring 10 by adhesive.
The production method that the present invention also proposes a kind of single-stage isolated device core, which includes magnet ring 10, in magnetic
Faraday rotator 20, first wedge cornual plate 30 and the second angle of wedge piece 40, first wedge cornual plate 30 and the second wedge are installed in ring 10
It further includes the connection ring 50 being arranged in the magnet ring 10, connection ring 50 in the two sides of Faraday rotator 20 that cornual plate 40, which sets up separately,
Outer wall be connected on the inner wall of the magnet ring 10, the inner wall of connection ring 50 is equipped with erecting bed 54, the Faraday rotator 20
It is arranged on erecting bed 54, connection ring 50 is set as first end 51 along axial one end, and first end 51 is equipped with the first opening, connection ring
50 are set as second end 52 along the axial other end, and second end 52 is equipped with the second opening, is formed between the first opening and the second opening
Light transmission channel 53, in the first end 51, second angle of wedge piece 40 is arranged described for the setting of first wedge cornual plate 30
Second end 52, production method includes the following steps:
A, the processing of connection ring 50: selection and 40 phase of Faraday rotator 20, first wedge cornual plate 30 and the second angle of wedge piece
The connection ring 50 of adaptation, and cleaning treatment is carried out to connection ring 50；
B, the fixation of Faraday rotator 20: Faraday rotator 20 is fixed on the erecting bed 54 of connection ring 50；
C, the fixation of first wedge cornual plate 30: first wedge cornual plate 30 is fixed in the first end 51 of connection ring 50；
D, the fixation of connection ring 50: connection ring 50 is put into magnet ring 10 and is fixed on the inner wall of magnet ring 10；
E, the installation of the second angle of wedge piece 40: the second angle of wedge piece 40 is placed on to the second end 52 of connection ring 50, passes through switch
Second angle of wedge piece 40 adjusts the insertion loss of isolator core to suitable numerical value, and the second angle of wedge piece 40 is fixed on connection ring
50 second end 52.
As a kind of preferred embodiment of the invention, in step, connection ring 50 is placed in filter screen plate, by filter screen plate
It is put into beaker, alcohol is poured into beaker, 20min is cleaned in supersonic wave cleaning machine, filter screen plate taking-up is placed on glass later
In glass ware, in 110 DEG C of oven, 30min is toasted, after baking, takes out, is cooled down.
As a kind of preferred embodiment of the invention, in stepb, uniformly put at 4 points on the erecting bed 54 of connection ring 50
Faraday rotator 20 is placed on erecting bed 54 by 353ND glue, and 60min is toasted in 110 DEG C of hot plate makes glue curing.
As a kind of preferred embodiment of the invention, in step C, connection ring 50 is overturn, so that the first end of connection ring 50
51 upward, uniformly puts upper 2 point OG154 glue in the first end 51 of connection ring 50, and carry out curing process with UV lamp irradiation 15S,
2 point 353ND glue are uniformly put in the first end 51 of connection ring 50 and the junction of first wedge cornual plate 30, dry in 110 DEG C of hot plate
Roasting 30min, is solidified；In step D, 353NDT glue is enclosed in the inner wall point one of magnet ring 10, connection ring 50 is placed into magnet ring 10
Interior scheduled position, and in 110 DEG C of hot plate, 60min is toasted, is cooled down later.
As a kind of preferred embodiment of the invention, in step E, in the uniform 4 point OG154 of second end 52 of connection ring 50
Second angle of wedge piece 40 is temporarily fixed to the second end 52 of connection ring 50, isolator core is connected in detection device and is carried out by glue
Detection, by stirring the second angle of wedge piece 40, stirs the second angle of wedge piece 40 to suitable position, in four angle points of the second angle of wedge piece 40
Point 353ND glue toasts 60min, is solidified in 110 DEG C of hot plate.Specifically, by entering optical collimator, OSA spectrum point
Analyzer goes out optical collimator, point light source, wideband light source and light power meter to carry out the detection of isolator core:
Firstly, the operation wavelength of setting light power meter, adjusts two collimators shown on the knob to power meter of adjusting bracket
Between IL value be minimum, be zeroed to light power meter.If there is positive number, then need again in adjusting knob after zero, light power meter
It resets, until there is not positive number, i.e., without phenomenon of being exposed to light accidentally.
Then, magnet ring is covered in the collimator for inputting or exporting, 4 knobs on adjusting adjusting bracket, on power meter
IL value is gradually decrease to minimum.
Then, IL value is adjusted to 0.4dB~0.5dB or so, if the central wavelength shown on OSA deviates the center of setting
When wavelength is greater than process requirements, needs to carry out plectrum: removing magnet ring, four angles of the second angle of wedge piece are gently stirred with tweezers wherein
One jiao (conveniently stir in this way and be not easy to be damaged to angle of wedge piece), so that it is rotated appropriate angle relative to the position of lower faceted crystal and be put into again
It is tested in optical path.
Situation is 1.: partially short (wave trough position is on the left of central wavelength 1550nm i.e. in waveform) the processing mode of waveform: by second
Angle of wedge piece is gently stirred along clockwise direction, i.e., tweezers, which are turned right, dials.
Situation is 2.: waveform is partially long (wave trough position is on the right side of central wavelength 1550nm i.e. in waveform), processing mode: by second
Angle of wedge piece is gently stirred in the counterclockwise direction, i.e., tweezers, which are turned left, dials；
Situation is 3.: unglazed (i.e. the right and left is all straight line in waveform).Processing mode: A. is according to Faraday rotator side
On the basis of edge line, stirring the second angle of wedge piece makes to observe wave after the edge line of the second angle of wedge piece is parallel with Faraday rotator edge line
Shape.B. the position of lower first wedge cornual plate is observed, stirring the second angle of wedge piece keeps two angle of wedge pieces high-end to low side, parallelogram
Afterwards, waveform is observed.C. gently it is left dial or it is right dial until occur situation 1. or situation 2..
Situation is 4.: (trough on the left side lower than the right wave trough position and is located in the middle green water chestnut to normal waveform i.e. in waveform
Shape the left side wave trough position, in a left side trough column grid adjacent on the left of the central wavelength 1550nm, the water chestnut of left and right two
Figurate number value >=30, intermediate diamond shape numerical value >=38)
Situation is 5.: there is normal waveform diagram, but three green diamond positions are lower than relevant parameter processing mode:
A. suitable alcohols are stained with cotton swab, two collimator end face .B. observation light power meter that wiping connection uses is adjusted around collimator
Four adjusting knobs, so that IL is transferred to minimum.C. isolator core is cleaned.
Product form of the invention is not limited to this case diagram and embodiment, anyone carries out the appropriate of similar thinking to it
Changes or modifications all should be regarded as not departing from patent category of the invention.
Claims (5)
1. a kind of production method of single-stage isolated device core, which is characterized in that the single-stage isolated device core includes magnet ring, is filled in magnet ring
Equipped with Faraday rotator, first wedge cornual plate and the second angle of wedge piece, first wedge cornual plate and the second angle of wedge piece set up separately in faraday
The two sides of rotator, further include the connection ring being arranged in the magnet ring, and the outer wall of connection ring is connected to the inner wall of the magnet ring
On, the inner wall of connection ring is equipped with erecting bed, and the Faraday rotator is arranged on erecting bed, and connection ring is set along axial one end
For first end, first end is equipped with the first opening, and connection ring is set as second end along the axial other end, and second end is equipped with second and opens
Mouthful, form light transmission channel between the first opening and the second opening, first wedge cornual plate setting is described in the first end
Second angle of wedge piece is arranged in the second end, and production method includes the following steps:
A, the processing of connection ring: the selection connection ring adaptable with Faraday rotator, first wedge cornual plate and the second angle of wedge piece,
And cleaning treatment is carried out to connection ring；
B, the fixation of Faraday rotator: Faraday rotator is fixed on the erecting bed of connection ring；
C, the fixation of first wedge cornual plate: first wedge cornual plate is fixed in the first end of connection ring；
D, the fixation of connection ring: connection ring is put on the inner wall in magnet ring and being fixed on magnet ring；
E, the second angle of wedge piece: being placed on the second end of connection ring by the installation of the second angle of wedge piece, will by switch second angle of wedge piece
The insertion loss of isolator core is adjusted to suitable numerical value, and the second angle of wedge piece is fixed on to the second end of connection ring.
2. a kind of production method of single-stage isolated device core as described in claim 1, which is characterized in that in step, will connect
Ring is placed in filter screen plate, and filter screen plate is put into beaker, alcohol is poured into beaker, 20min is cleaned in supersonic wave cleaning machine,
Filter screen plate taking-up is placed in glass dish later, in 110 DEG C of oven, toasts 30min.
3. a kind of production method of single-stage isolated device core as claimed in claim 2, which is characterized in that in stepb, connecting
4 point 353ND glue are uniformly put on the erecting bed of ring, and Faraday rotator is placed on erecting bed, is toasted in 110 DEG C of hot plate
60min makes glue curing.
4. a kind of production method of single-stage isolated device core as claimed in claim 3, which is characterized in that in step C, in connection ring
First end uniformly put 2 point OG154 glue, and curing process is carried out with UV lamp irradiation 15S, in the first end and first of connection ring
2 point 353ND glue are uniformly put in the junction of angle of wedge piece, toast 30min in 110 DEG C of hot plate, are solidified；In step D,
The inner wall point one of magnet ring encloses 353NDT glue, connection ring is placed into magnet ring, and in 110 DEG C of hot plate, toasts 60min.
5. a kind of production method of single-stage isolated device core as claimed in claim 4, which is characterized in that in step E, connecting
Second angle of wedge piece, is temporarily fixed to the second end of connection ring, isolator core is connected by the uniform 4 point OG154 glue of the second end of ring
It is detected into detection device, the second angle of wedge piece is dialed into suitable position, in four angle point point 353ND of the second angle of wedge piece
Glue toasts 60min, is solidified in 110 DEG C of hot plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610624911.0A CN106019644B (en) | 2016-08-02 | 2016-08-02 | A kind of single-stage isolated device core and its manufacture craft |
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| CN201610624911.0A CN106019644B (en) | 2016-08-02 | 2016-08-02 | A kind of single-stage isolated device core and its manufacture craft |
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| CN109239949A (en) * | 2018-11-21 | 2019-01-18 | 焦作市岚博通讯技术有限公司 | A kind of two steps type Double-stage isolator core and preparation method thereof |
| CN115480349A (en) * | 2022-08-30 | 2022-12-16 | 广州奥鑫通讯设备有限公司 | Optical isolator chip shifting piece optical path, device and method |
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| US20030031395A1 (en) * | 2001-08-10 | 2003-02-13 | Youfu Shao | High isolation gain flattening filter |
| CN201828736U (en) * | 2010-08-31 | 2011-05-11 | 深圳市鑫宇光通讯技术有限公司 | Optoisolator with bracket |
| CN202025158U (en) * | 2011-04-29 | 2011-11-02 | 福州通产光电技术有限公司 | Optical isolator |
| CN204719357U (en) * | 2015-04-25 | 2015-10-21 | 河南省鑫宇光实业有限公司 | A kind of square free-space reversal optical fiber isolator |
| CN205982900U (en) * | 2016-08-02 | 2017-02-22 | 福建中策光电股份公司 | Novel isolator core |
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2016
- 2016-08-02 CN CN201610624911.0A patent/CN106019644B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489353Y (en) * | 2001-06-29 | 2002-05-01 | 鸿富锦精密工业（深圳）有限公司 | Optoisolator |
| US20030031395A1 (en) * | 2001-08-10 | 2003-02-13 | Youfu Shao | High isolation gain flattening filter |
| CN201828736U (en) * | 2010-08-31 | 2011-05-11 | 深圳市鑫宇光通讯技术有限公司 | Optoisolator with bracket |
| CN202025158U (en) * | 2011-04-29 | 2011-11-02 | 福州通产光电技术有限公司 | Optical isolator |
| CN204719357U (en) * | 2015-04-25 | 2015-10-21 | 河南省鑫宇光实业有限公司 | A kind of square free-space reversal optical fiber isolator |
| CN205982900U (en) * | 2016-08-02 | 2017-02-22 | 福建中策光电股份公司 | Novel isolator core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106019644A (en) | 2016-10-12 |
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