CN206020719U - A kind of miniature low-loss optical wavelength division multiplexer - Google Patents
A kind of miniature low-loss optical wavelength division multiplexer Download PDFInfo
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- CN206020719U CN206020719U CN201620677903.8U CN201620677903U CN206020719U CN 206020719 U CN206020719 U CN 206020719U CN 201620677903 U CN201620677903 U CN 201620677903U CN 206020719 U CN206020719 U CN 206020719U
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Abstract
The utility model discloses a kind of miniature low-loss optical wavelength division multiplexer, double optical fiber head is fixed in first sleeve, and left-side lens are fixed in the second sleeve pipe, and right-side lens are fixed in the 3rd sleeve pipe, and single fiber head is fixed in Quadruplet pipe；The right side of first sleeve and the second sleeve pipe left side Joint, the 3rd sleeve pipe right side and Quadruplet pipe left side Joint；First sleeve, the second sleeve pipe, the 3rd sleeve pipe and Quadruplet pipe are all fixed in outermost metal sleeve pipe；Multilayer dielectric film filter plate respectively with the second sleeve pipe right side end and the 3rd sleeve pipe left side Joint.Insertion loss of the present utility model is smaller, small volume.
Description
Technical field
This utility model is related to a kind of light wavelength division multiplexing, more particularly to a kind of miniature low-loss optical wavelength division multiplexer, category
In technical field of optical fiber communication.
Background technology
The structure of the light wavelength division multiplexing of prior art is typically similar to shown in the figure l of Figure of description：By double optical fiber
A fibre optical transmission multichannel optical signal in 101, collimates through Grin-Lens (GRIN Lens) 104, and incident multilamellar is situated between
Plasma membrane filter plate 105；Through the passage optical signal entrance lens that the multiple-beam interference of multilayer dielectric film filter plate 105 selects transmission
106, assemble through lens 106, be coupled into single fiber head 108；Remaining optical signal from the reflection of 105 surface of multilayer dielectric film filter plate
Assemble through GRIN Lens 104, the other optical fiber being coupled in double optical fiber head 101；Complete OWDM function.
Wherein, glue 110 is used for fixing plane of the multilayer dielectric film filter plate 105 in Grin-Lens (GRIN Lens) 104
End, glue 111 are used for fixing the beveled end of Grin-Lens (GRIN Lens) 104 and the beveled end of double optical fiber head 101；Double optical fiber
Collimator assembly is fixed in first sleeve 102 by glue, then is fixed in second set 112 with glue 103, then is sealed with glue；
By glue Grin-Lens (GRIN Lens) 106 in the 3rd sleeve pipe 107, single fiber head 108 is fixed on the 3rd set by glue
In pipe 107, glue 109 is fixed on the 3rd sleeve pipe 107 in second sleeve pipe 112, then is sealed with glue.
The shortcoming of the light wavelength division multiplexing of prior art is using fixing operating distance and size with a tight waist in advance
Single optical fiber calibrator, when double-fiber collimator is coupled with single optical fiber calibrator, except operating distance and the mismatch of size with a tight waist
Especially for dense wave division multipurpose field, more serious coupling mismatch is also had：Many due to multilayer dielectric film filter plate 105
During beam interference caused by hot spot expand and change brought coupling mismatch with the Gaussian beam parameter of spot center displacement.
Theory analysis is as follows：
First, the mismatch of operating distance and size with a tight waist：
Two optical fiber are by the index path of Lens Coupling as shown in Fig. 4 of Figure of description.
The waist radius that optical fiber a sends is ω00, numerical aperture is NA1Gaussian beam, through collimating lens, focus on thoroughly
Mirror L, after effect, waist radius and numerical aperture are respectively ω01And NA2, then received by optical fiber b.And optical fiber b only receives satisfaction
ω01≤ω0bAnd NA2≤NAbLight beam, wherein ω0bAnd NAbDetermined by optical fiber b.
It is whole coupled into optical fibres b of the light that optical fiber a is sent, it is thus necessary to determine that suitable optical fiber a object distances d1, optical fiber a image distances
d2, optical fiber b image distances d3With optical fiber b object distances d4, collimating lens focal length F1With condenser lenses focal length F2.
As each collimator inside optic communication device is typically using the optical fiber of same specification, and the height of fiber exit light
This light beam with a tight waist just in fiber end face, when fiber end face is placed at the front focus of the lens that the focal length of lens is f, now saturating
Gaussian beam on the right of mirror has maximum value ω with a tight waist01, according to fundamental-mode gaussian beam spatial alternation, can obtain：
Wherein, the centre wavelength of optical signal is λ.When optical fiber a adopts the focal length of lens to obtain maximum then for the collimating lens of f
Optical fiber b should accordingly adopt the focal length of lens to obtain maximum ω for the collimating lens of f01, when two Gaussian beams are onesize with a tight waist
ω01Position couple when, obtain Best Coupling, then the light of optical fiber a outgoing all brings disaster upon and closes into optical fiber b.
Consider that two collimators exchange each uncertain factor that assembling is harmonious, Gaussian beam of two optical fiber by collimated
Be harmonious mismatch condition as shown in Fig. 5 of Figure of description.
It is harmonious theory according to mould field, when two single mode fiber collimators are coupled, optical field distribution is E1Gaussian beam 1 and light
E is distributed as by force2The coupling efficiency T of Gaussian beam 2 is：
In formula：For E2Conjugate complex number, x and y be coordinate.
According to mould field coupled wave theory, with Gaussian beam transmissive, through further deriving, can respectively from model field unbalance
Couple, lateral run-out is coupled, be axially displaced from coupling and drift angle couples this four aspect Theoretical Calculation and goes out two single-mode fibers collimations
Insertion loss between device.
1) model field unbalance coupling loss IL1：
In formula：Δ ω=ω1-ω2, that is, represent that Δ ω is the waist radius ω for coupling two collimators1And ω2Difference.
2) lateral run-out coupling loss IL2：
In formula：Dx is lateral run-out distance.
3) coupling loss IL is axially displaced from3：
In formula：For being axially displaced from distance, λ is optical wavelength to Δ z.
4) drift angle coupling loss IL4：
In formula：D θ are drift angle angle.
Collimator of the light wavelength division multiplexing of prior art using fixed operating distance and size with a tight waist in advance, due to
The light path design of light wavelength division multiplexing has secured the position of double-fiber collimator and single optical fiber calibrator, in such restriction
Under the conditions of, single optical fiber calibrator is carried out to timing with double-fiber collimator, by the pitching of fine tuning adjustment frame, lifting, rotation, X
The adjusting screw rod such as axle translation and Y-axis translation, can only be eliminated when single optical fiber calibrator is coupled with double-fiber collimator as much as possible
Angle mismatching is lost, and can not solve mismatch loss with a tight waist and axial mismatch loss.
This is using the inherent defect for fixing the light wavelength division multiplexing of the collimator of operating distance and size with a tight waist in advance.
2nd, during the multiple-beam interference of multilayer dielectric film filter plate caused by hot spot expand with central optical path dislocation Gauss
Light beam parameters change brought coupling mismatch.
When light beam incides the surface of multilayer dielectric film at an angle, light beam each medium in multilayer dielectric film
Interface there is multiple reflections and refraction, total reflected light and transmitted light are all by multiple-beam synthesis, are exactly multiple in atmosphere
The result of reflected light coherent superposition.The electric vector of light beam and magnetic vector are respectively divided into two components, and the component parallel to the plane of incidence is P
Ripple, is S ripples perpendicular to the component of the plane of incidence.
By taking air with the reflected light of the ground floor dielectric film of multiple deielectric-coating as an example：
Set φ0For angle of incidence, φ1And φ2For the first layer film and the refraction angle of the second layer film, n0Folding for air
Penetrate rate, n1For the refractive index of the first layer film, n2Refractive index for the second layer film.By Fresnel reflection formula, P can be provided
Amplitude reflectance (the r of ripple and S ripplesp, rs).For air and the reflection coefficient of the interface of ground floor dielectric film, P ripples and S ripples
Respectively：
According to the law of refraction, φ0And φ1Following relation should be met：
n0sinφ0=n1sinφ1
For ground floor dielectric film and the interface of second layer dielectric film, there is the relational expression of above-mentioned determination in the same manner.Further
Can calculate, optical path difference L between any two adjacent reflected light：
L=2n1dcosφ1
Thickness of the wherein d for ground floor dielectric film.Thus the position difference of the adjacent two-stage reflected light that optical path difference causes is 2
δ, then：
As ground floor dielectric film upper and lower surface is to light multiple reflections and refraction, we are in atmosphere it is seen that repeatedly
The result of reflected light coherent superposition, introduces P ripples, the net amplitude reflection coefficient of S ripples：
Wherein：(Ep)InsteadFor P wave reflection amplitudes, (Ep)EnterFor its incident amplitude；(Es)InsteadFor the reflected amplitude of S ripples, (Es)EnterFor
Its incident amplitude.Theoretical according to multiple-beam interference, we can be in the hope of net amplitude reflection coefficient：
Wherein：r2pRepresent the reflection coefficient of the P ripples of second layer dielectric film；r2sRepresent the S ripples of second layer dielectric film
Reflection coefficient；I represents imaginary number.
Amplitude reflectance r due to P ripplespReflection coefficient r with S rippless, net amplitude reflection coefficient is also different；
After multi-channel optical signal multiple-beam interference, the amplitude attenuation ratio of the P ripples and S ripples of each wavelength or relative amplitude decay also each not phase
With the combined waveform of the P ripples and S ripples of final multi-channel optical signal is just differed；Outward manifestation is exactly the anti-of multi-channel optical signal
Penetrate hot spot and become big and spot center generation displacement.Analysis in the same manner can obtain the transmission hot spot of multi-channel optical signal become big and
Spot center produces displacement.
The deielectric-coating number of plies of multilayer dielectric film filter plate 105 is more, then above-mentioned phenomenon is more serious.Due to multilayer dielectricity membrane filtration
Caused by the multiple-beam interference institute of wave plate 105, hot spot is expanded and spot center displacement, and the Gaussian beam parameter of transmitted light becomes
Change, so as to the collimator to fixing operating distance and size with a tight waist in advance brings lateral displacement coupling loss and coupling loss with a tight waist
Mismatch.The light wavelength division multiplexing in CWDM field has above-mentioned coupling mismatch problems, for dense wave division multipurpose field
Light wavelength division multiplexing, has more serious coupling mismatch problems.
Utility model content
The purpose of this utility model is to provide a kind of miniature low-loss optical wavelength division multiplexer, solves light wave in prior art
Division multiplexer coupling adaptation issues are serious, the larger technical problem of insertion loss.
The technical scheme adopted by this utility model is：A kind of miniature low-loss optical wavelength division multiplexer, multilayer dielectricity membrane filtration
Wave plate 205 by glue respectively with 206 left side Joint of 203 right side of the second sleeve pipe and the 3rd sleeve pipe；Double optical fiber head 201 passes through
Glue is fixed in first sleeve 202, and the first lens of the left side 204 are fixed in the second sleeve pipe 203 by glue, the second lens of the right
209 are fixed in the 3rd sleeve pipe 206 by glue, and single fiber head 208 is fixed in Quadruplet pipe 207 by glue；First sleeve 202
Right side is affixed by glue with 203 left side of the second sleeve pipe, and 206 right side of the 3rd sleeve pipe passes through 207 left end of glue and Quadruplet pipe
Face constitutes OWDM structure by glue Joint；
First sleeve 202, the second sleeve pipe 203, the 3rd sleeve pipe 206 and Quadruplet pipe 207 are all fixed on outermost by glue
In layer metal canula 210.
First lens 204 and the second lens 209 are that GRIN Lens, bitoric lens, C lens or aspheric surface are saturating
Any one of mirror.
The glue is any one of heat-curable glue, uv-curable glue or double solidification glues.
First sleeve 202, the second sleeve pipe 203, the 3rd sleeve pipe 206 and Quadruplet pipe 207 adopt quartz glass, borosilicate
Any one of glass, pottery, kovar alloy or invar alloy material.
Compared with prior art, the beneficial effect produced by this utility model is：Single optical fiber calibrator can not only be eliminated
The angle mismatching loss coupled with double-fiber collimator and horizontal mismatch loss, and can solve the problem that other coupling mismatches are asked simultaneously
Topic, reduces insertion loss；There is small volume, low advantage is lost.
Description of the drawings
Light wavelength division multiplexings of the Fig. 1 for prior art.
The miniature light wavelength division multiplexing embodiment one that Fig. 2 is provided for this utility model.
The miniature light wavelength division multiplexing embodiment two that Fig. 3 is provided for this utility model.
Fig. 4 is light path principle figure of two optical fiber by Lens Coupling.
Fig. 5 is coupling mismatch condition of two optical fiber by the Gaussian beam of collimated.
Fig. 6 is the relation of beam waist diameter of the optical fiber through collimated emergent light and air gap length.
Fig. 7 is the relation of operating distance of the optical fiber through collimated emergent light and air gap length.
In figure：201st, metal canula；202nd, first sleeve；203rd, the second sleeve pipe；204th, the first lens；205th, multilayer dielectricity
Membrane filtration wave plate；206th, the 3rd sleeve pipe；207th, Quadruplet pipe；208th, single fiber head；209th, the second lens.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is further described.Following examples are only used for this is clearly described
The technical scheme of utility model, and protection domain of the present utility model can not be limited with this.
This utility model introduces multiple sleeve pipes so that double optical fiber head, single fiber head, lens etc. are each independent, such that it is able to
Gap between dynamic regulation double-fiber collimator and lens and between the optical fiber head and lens of single optical fiber calibrator, and dynamic
Adjust optical fiber head and the optical fiber head of lens and single optical fiber calibrator of double-fiber collimator and the angle of the rotation of lens and several
The operating distance of the dislocation at what center, dynamic regulation double-fiber collimator and single optical fiber calibrator, size with a tight waist and position with a tight waist
The method that puts.During actual fabrication, by adjusting the optical fiber head and lens and single optical fiber calibrator of double-fiber collimator
Optical fiber head and lens gap, dynamic rotate adjust the optical fiber head of double-fiber collimator and lens and single optical fiber calibrator with
The angle of lens, dynamic rotary adjust the relative angle between two lens angled end-faces, dynamic regulation single optical fiber calibrator and double light
The mismatch of operating distance, size with a tight waist and beam waist position between fine collimator, and the multiple beam of multilayer dielectric film filter plate
The size mismatch with a tight waist for interfering the caused hot spot of institute to expand；And by optical fiber head and the lens of dynamic adjustment double-fiber collimator with
And the dislocation of the geometric center of the optical fiber head of single optical fiber calibrator and lens, dynamic regulation single optical fiber calibrator and double fiber optic collimators
The angle mismatching of device, and the multiple-beam interference of multilayer dielectric film filter plate caused by spot center displacement horizontal mismatch；
Angle mismatching loss, horizontal mismatch loss, mismatch with a tight waist that single optical fiber calibrator coupled is eliminated as much as with double-fiber collimator
Loss and axial mismatch loss, when realizing lowest loss, 203 right-hand member of 202 left side of first sleeve and the second sleeve pipe fixed by ability glue
Face and 206 right side of the 3rd sleeve pipe and 207 left side of Quadruplet pipe, fix used in final solution prior art in advance
The single optical fiber calibrator of operating distance and size with a tight waist can only eliminate as much as single optical fiber calibrator and couple with double-fiber collimator
When angle mismatching loss and horizontal mismatch loss, and can not solve other coupling mismatches shortcomings.
Theory analysis is as follows：
The basic functional principle of optical fiber collimator is：The focal point that fiber end face is placed in collimating lens, makes outgoing beam
Collimated, the gap of fiber end face and collimating lens is then slightly adjusted near focal point, the operating distance required for obtaining.
By being joined using a kind of MathCAD certain selected optical fiber parameter of (engineering calculation software) analogue simulation and collimating lens
Several collimators：" optical fiber girdling the waist through collimated emergent light is obtained with the gap of collimating lens by adjusting fiber end face
Diameter and the relation of Kong Qijianxishi degree " (referring to Fig. 6 of Figure of description)；By adjusting between fiber end face and collimating lens
Gap obtains " relation of operating distance of the optical fiber through collimated emergent light and air gap length " (referring to Fig. 7).From two
The graph of a relation of MathCAD softwares simulation collimator is it is known that can be obtained with the gap of collimating lens by adjusting fiber end face
Size with a tight waist and operating distance to the collimator of large dynamic range.
This utility model is so allowed for by between the optical fiber head and lens of dynamic regulation double-fiber collimator and single
Gap between the optical fiber head and lens of optical fiber collimator, and the optical fiber head and lens and list of dynamic adjustment double-fiber collimator
The dislocation of the optical fiber head of optical fiber collimator and the geometric center of lens, the optical fiber head of dynamic adjustment double-fiber collimator and lens with
And the relative angle of the optical fiber head of single optical fiber calibrator and lens, add the rotation by fine tuning adjustment frame, X-axis translation, Y-axis and put down
Move and the adjusting screw rods such as Z axis translation, it is possible to eliminate angle when single optical fiber calibrator is coupled with double-fiber collimator as much as possible
The mismatches such as degree mismatch loss, horizontal mismatch loss, mismatch loss with a tight waist and axial mismatch loss.So that single optical fiber calibrator with
Double-fiber collimator coupling obtains the insertion loss of minimum.
As shown in Fig. 2 be the embodiment one of the miniature low-loss optical wavelength division multiplexer that this utility model is provided, in actual system
During work, by adjust double-fiber collimator optical fiber head 201 and the first lens 204 between and single optical fiber calibrator list
Gap between optical fiber head 208 and the second lens 209, and the optical fiber head 201 and the first lens of dynamic adjustment double-fiber collimator
204 and single optical fiber calibrator single fiber head 209 and the geometric center of lens 205 dislocation, the double fiber optic collimators of dynamic regulation
The operating distance of the optical fiber head 201 of device and the first lens 204 and single optical fiber calibrator, size with a tight waist and beam waist position, to the greatest extent may be used
Angle mismatching loss, horizontal mismatch loss, mismatch loss with a tight waist that double-fiber collimator coupled can be eliminated with single optical fiber calibrator
Expand and hot spot with hot spot caused by axial mismatch loss, and the multiple-beam interference institute of elimination multilayer dielectric film filter plate 205
The Gaussian beam parameter of the center displacement changes brought coupling mismatch；When realizing lowest loss, first sleeve fixed by ability glue
202 left sides and 203 right side of the second sleeve pipe and 206 right side of the 3rd sleeve pipe and 207 left side of Quadruplet pipe, and use simultaneously
Glue fixes Quadruplet pipe 207 and first sleeve 202 on outermost metal sleeve pipe 210, realizes single optical fiber calibrator with double optical fiber
Minimum coupling loss between collimator.
By a fibre optical transmission multichannel optical signal in double optical fiber head 201, through 204 incident multilayer dielectricity of the first lens
Membrane filtration wave plate 205；Select the passage optical signal incidence second of institute's transmission saturating through the multiple-beam interference of multilayer dielectric film filter plate 205
Mirror 209, assembles through the second lens 209, is coupled into single fiber head 208；From 205 surface of dielectric multi-layer optical thin film filter plate reflection its
Optical signal is assembled through the first lens 204, the other optical fiber being coupled in double optical fiber head 201, completes OWDM function.
The first described lens 204 and the second lens 209 can be Grin-Lens (GRIN Lens), D-Lens (hyperbolics
Face lens), the optical lenses such as C-Lens (C lens) or non-spherical lens.Described glue can be heat-curable glue, uv-curable glue
With solidification glues such as double solidification glues.Described sleeve pipe can be quartz glass, Pyrex, pottery, Kovar (kovar alloy) and
The thermal coefficient of expansions such as Invar (invar alloy) material close with the thermal coefficient of expansion of lens and the substrate of optical fiber head.
The collimating lens of dynamic regulation collimator of the present utility model can adopt Grin-Lens, D-Lens, C-Lens or
The optical lenses such as non-spherical lens, below with C-Lens as being embodied as example：
According to the lens parameter that low-loss optical wavelength division multiplexer designs fixed double-fiber collimator, double optical fiber are calculated accurate
Size with a tight waist during straight device incidence multilayer dielectric film filter plate, the multiple-beam interference for adding consideration multilayer dielectric film filter plate are led
The hot spot of cause expand factor obtain virtuality that single optical fiber calibrator and double-fiber collimator couple size with a tight waist combined optical fiber and
Channel wavelength, according to following equation：
The focal length f of C-Lens can be calculated, further according to the focal length f formula of C-Lens：
Radius of curvature of the wherein R for C-Lens spheres, the corresponding C-Lens materials of the central wavelength lambda of the joint passage optical signal
Refractive index n can just extrapolate the sphere curvature radius of C-Lens.
The embodiment of concrete structure is as follows：
Light wavelength division multiplexing embodiments one of the Fig. 2 for new solution.
The first lens 204 are fixed in the target location in the second sleeve pipe 203 with glue first, then multilamellar are situated between by glue
Matter film filtering slice 205 and the right side Joint of the second sleeve pipe 203, form filter plate component.Then with glue by the second lens
209 are fixed on target location in the 3rd sleeve pipe 206, constitute right-side lens component.
On adjusting bracket, rotation adjusts filter plate component and right-side lens component so that 204 beveled end of the first lens and the
The beveled end of two lens 209 reaches the relative angle of target.Then with glue by the left side of filter plate 205 in filter plate component and
The right side Joint of the 3rd sleeve pipe 206 in right-side lens component, forms the intermediate module of wavelength division multiplexer.
Target location in first sleeve 202 is fixed on double optical fiber head 201 by glue, double optical fiber head component is formed.Logical
Cross glue and single fiber head 208 is fixed on the target location in Quadruplet pipe 207, form single fiber head assembly.
The intermediate module part of wavelength division multiplexer is fixed on fixture, double optical fiber components and single fiber head assembly is exchanged.
Target relative rotational angular degree between them is reached by dynamic rotary regulation double optical fiber head component and single fiber head assembly, and dynamic is adjusted
The dislocation of the geometric center of whole double optical fiber head 201 and the first lens 204 and adjustment single fiber head 208 and second lens 209
The dislocation of geometric center, adds the rotation of adjusting bracket, the X-axis for fixing double optical fiber head component and single fiber head assembly by fine tuning
The adjusting screw rods such as translation, Y-axis translation and Z axis translation, it is possible to eliminate single optical fiber calibrator and double-fiber collimator as much as possible
The mismatches such as angle mismatching loss, horizontal mismatch loss, mismatch loss with a tight waist and axial mismatch loss during coupling, accurate in single fiber
When straight device couples the insertion loss for obtaining minimum with double-fiber collimator, the first sleeve that is fixed in double optical fiber head component with glue
203 left side of 202 right sides and the second sleeve pipe, and with glue fix in single fiber head assembly the left side of Quadruplet pipe 207 and
3rd sleeve pipe, 206 right side；Finally by glue by first sleeve 201, the second sleeve pipe 203, the 3rd sleeve pipe 206, Quadruplet pipe 207
It is fixed in outermost metal sleeve pipe 210, finally realizes low-loss optical wavelength division multiplexer.
The embodiment two of the miniature light wavelength division multiplexing that Fig. 3 is provided for this utility model.
It is in place of the main difference of embodiment two and embodiment one, the right-hand member and the 3rd sleeve pipe 206 of the second sleeve pipe 203
Left end respectively devises a step in sleeve pipe, can so increase the area of gluing so that the second sleeve pipe 203, the 3rd sleeve pipe
206 can be preferably affixed with multilayer dielectric film filter plate 205, improves the steadiness of device.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, some improvement and deformation can also be made, these change
Enter and deform also to should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of miniature low-loss optical wavelength division multiplexer, it is characterised in that：Multilayer dielectric film filter plate (205) by glue respectively with
Second sleeve pipe (203) right side and the 3rd sleeve pipe (206) left side Joint；Double optical fiber head (201) is fixed on first by glue
In sleeve pipe (202), the first lens (204) are fixed in the second sleeve pipe (203) by glue, and the second lens (209) are fixed by glue
In the 3rd sleeve pipe (206), single fiber head (208) is fixed in Quadruplet pipe (207) by glue；First sleeve (202) right-hand member
Face is affixed by glue with the second sleeve pipe (203) left side, and the 3rd sleeve pipe (206) right side is left by glue and Quadruplet pipe (207)
End face constitutes OWDM structure by glue Joint；
First sleeve (202), the second sleeve pipe (203), the 3rd sleeve pipe (206) and Quadruplet pipe (207) are all fixed on by glue
In outermost metal sleeve pipe (210)；
Second sleeve pipe（203）Right-hand member and the 3rd sleeve pipe（206）Left end be provided with step.
2. a kind of miniature low-loss optical wavelength division multiplexer according to claim l, it is characterised in that：First lens
And the second lens (209) are any one of GRIN Lens, bitoric lens, C lens or non-spherical lens (204).
3. a kind of miniature low-loss optical wavelength division multiplexer according to claim l, it is characterised in that：The glue is heat cure
Any one of glue, uv-curable glue or double solidification glues.
4. a kind of miniature low-loss optical wavelength division multiplexer according to claim l, it is characterised in that：First sleeve (202),
Second sleeve pipe (203), the 3rd sleeve pipe (206) and Quadruplet pipe (207) using quartz glass, Pyrex, pottery, can cut down
Any one of alloy or invar alloy material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620677903.8U CN206020719U (en) | 2016-06-30 | 2016-06-30 | A kind of miniature low-loss optical wavelength division multiplexer |
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| CN201620677903.8U CN206020719U (en) | 2016-06-30 | 2016-06-30 | A kind of miniature low-loss optical wavelength division multiplexer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991773A (en) * | 2017-11-30 | 2018-05-04 | 上海伟钊光学科技股份有限公司 | The production method of optical fiber optical path pool |
| CN113080846A (en) * | 2021-02-22 | 2021-07-09 | 北京理工大学 | Miniature endoscopic imaging probe of optical coherence tomography system |
| CN114325950A (en) * | 2021-12-10 | 2022-04-12 | 江苏永鼎光电子技术有限公司 | High-performance 100G dense wavelength division multiplexing device |
-
2016
- 2016-06-30 CN CN201620677903.8U patent/CN206020719U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991773A (en) * | 2017-11-30 | 2018-05-04 | 上海伟钊光学科技股份有限公司 | The production method of optical fiber optical path pool |
| CN113080846A (en) * | 2021-02-22 | 2021-07-09 | 北京理工大学 | Miniature endoscopic imaging probe of optical coherence tomography system |
| CN114325950A (en) * | 2021-12-10 | 2022-04-12 | 江苏永鼎光电子技术有限公司 | High-performance 100G dense wavelength division multiplexing device |
| CN114325950B (en) * | 2021-12-10 | 2024-03-26 | 江苏永鼎光电子技术有限公司 | High-performance 100G dense wavelength division multiplexing device |
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