CN109917516A - A kind of compact wavelength division multiplexer - Google Patents
A kind of compact wavelength division multiplexer Download PDFInfo
- Publication number
- CN109917516A CN109917516A CN201910247905.1A CN201910247905A CN109917516A CN 109917516 A CN109917516 A CN 109917516A CN 201910247905 A CN201910247905 A CN 201910247905A CN 109917516 A CN109917516 A CN 109917516A
- Authority
- CN
- China
- Prior art keywords
- optical
- prism
- angle
- filter plate
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 128
- 239000013307 optical fiber Substances 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000009738 saturating Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 239000002355 dual-layer Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Abstract
The invention discloses a kind of novel compact wavelength division multiplexers, belong to technical field of optical fiber communication.The compact wavelength division multiplexer, including incident optical collimator, the first optical prism, multiple groups filter plate and the output optical fiber collimator, first optical prism includes the first side that isosceles are arranged and second side and bottom surface, and the incident optical collimator and multiple groups filter plate are arranged along the first optical prism main cross section bottom edge.The present invention is totally reflected the optical path between filter plate and incident optical collimator and the output optical fiber collimator, to make light path folding, obtains the wavelength division multiplexer of the free-space structure based on low-angle filter plate by the first optical prism of setting.Further, the second right-angle prism is set on the basis of the first optical prism, and the reflection in two right-angle side faces substantially reduces economic cost so that two layers of evenly distributed, volume-diminished to original half of the output optical fiber collimator point, compact-sized.
Description
Technical field
The present invention relates to technical field of optical fiber communication, and in particular to a kind of novel compact wavelength division multiplexer.
Background technique
With the development of Fibre Optical Communication Technology, WDM technology takes full advantage of the enormous bandwidth resource of low-loss band of optical fibers,
Increase several times or tens times than single band transmission, there is very big application value and economic value.In optical communication system, it is desirable that
Wavelength division multiplexer minimizes and high precision int, the filter plate design angle of compact wavelength division multiplex device are usually 13.5 °, 10 °
Or 8 °, angle is bigger, and the volume of corresponding device is with regard to smaller.Lack the small size based on free-space structure currently on the market
Dense wave division multiplexer.
In currently existing scheme, compact wavelength division multiplexer may be implemented using the filter plate of wide-angle, be mainly used for realizing
Channel separates biggish Coarse Wave Division Multiplexer, such as CWDM (channel spacing 20nm), LAN-WDM (channel spacing about 5nm).Letter
The small filter plate in road interval, the especially filter plate of dense wavelength division multiplexing (DWDM), when design angle increases, for two
The filtering characteristic of the light beam of a mutually perpendicular polarization state has biggish difference, forms the relevant loss of so-called polarization.By
It is still smaller in the development trend of current optical communication technology, faster, density is higher.Partial wave will be realized for the DWDM of low-angle
Multiplexing needs enough space-intensive arrangement filter plates and collimator, the light path for needing to grow very much, so that compact device is difficult
To realize.
Application publication number discloses a kind of based on the compact of low-angle filter plate for the patent document of 105938222 A of CN
Type wavelength division multiplexer, including fixed bracket, multiple groups filter plate and output collimator, input collimator and optical mirror are more
Block filter plate successively transmits the light of setting wavelength and reflects its remaining light, further includes at least one first right-angle prism；Described first
Right-angle prism is arranged in the optical path between input collimator and optical mirror incident from input collimator for being totally reflected
Light is so that input collimator and layered arrangement above and below optical mirror；First right-angle prism is arranged in optical mirror and filter
For the light beam between ATR Optical reflecting mirror and filter plate so that the piece transmitted light that accepts filter in optical path between wave plate
Layered arrangement above and below output collimator and optical mirror；The invention is multiple by optical path by the way that right-angle prism is arranged in the optical path
It folds, reduces the space that each device occupies, realize compact dense wave division multiplexer part.
It how to be further improved wavelength division multiplex device structure, shortens light path, reduces the volume of wavelength division multiplexer, keep simultaneously
High precision int is those skilled in the art's problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of novel compact wavelength division multiplex devices, can effectively reduce from body
Product is suitable for low-angle DWDM filter plate, and size is small, compact-sized, and unilateral fiber can be directly integrated in DWDM transceiver,
Realize transmitted at high speed and reception.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of compact wavelength division multiplexer, including incident optical collimator, the first optical prism, multiple groups filter plate and go out
Penetrate optical fiber collimator, first optical prism includes first side and second side and the bottom surface of isosceles setting, it is described enter
It penetrates optical fiber collimator and multiple groups filter plate to arrange along the first optical prism main cross section bottom edge, the incident optical collimator transmitting
Incident light, first side and second side reflection of the light beam through the first optical prism, multiple groups filter plate successively transmit setting wavelength
Light and reflect its remaining light, its remaining light of reflection passes through the first side of the first optical prism again and second side reflex to it is next
Filter plate, the output optical fiber collimator are used to receive the light beam of corresponding filter plate transmission.
The angle of the first side and second side and bottom surface is 45 °.The present invention passes through the first optical prism of setting,
Optical path between filter plate and incident optical collimator and the output optical fiber collimator is totally reflected, so that optical path is made to turn back,
It folds, obtains the wavelength division multiplexer of the free-space structure based on low-angle filter plate.
The working principle of above structure as shown in Figure 1, incident optical collimator by after the light collimation containing N number of wavelength, from the
The bottom surface area A of one optical prism is refracted into inside the first optical prism, and polychromatic light reaches the right-angle surface S2 of the first optical prism
Back reflection is to right-angle surface S1, then reflects up to the bottom surface area B of the first optical prism, the bottom surface area B of first optical prism according to
It is secondary to place multiple filter plates, when polychromatic light reaches the light λ 1 of first filter plate transmission setting wavelength and reflects its commplementary wave length
Light, through S1, S2 reflects up to the light of transmission setting wavelength X 2 on next filter plate and reflects the light of its commplementary wave length, and so on,
Successively the light of N number of wavelength is separated and is projected, the output optical fiber collimator is used to receive the light beam of corresponding filter plate transmission.
For the ease of manufacturing and installing, it is preferred that incident optical collimator is in the side of the output optical fiber collimator, collimator
Between dense arrangement in the same plane.Using the filter plate of small size, but it is finally limited or as incident and received
The diameter of collimator, dense arrangement between collimator, whole optical component knot is more compact, smaller.
Preferably, the incident optical range of the bottom surface of first optical prism plates anti-reflection film, outgoing optical range configuration
Filter plate.
In order to guarantee to lose optical power minimum, the light end that goes out of the filter plate is equipped with outgoing optical collimator, and collimator can
To adjust respectively one by one.
All filter plates are parallel with the bottom surface of the first optical prism, it is preferred that filter plate is directly bonded in bottom surface, to protect
Card light is incident on filter plate with identical angle, guarantees that the central wavelength in each channel is met the requirements.
Preferably, first optical prism further includes the top surface parallel with the bottom surface, the top surface is equipped with the
Two right-angle prisms, the main cross section of second right-angle prism and the main cross section of the first optical prism are mutually perpendicular to.
Preferably, second right-angle prism include the first right-angle side reflecting surface and the second right-angle side reflecting surface, second
Right-angle prism is totally reflected the light beam that is emitted from the first optical prism top surface, the output optical fiber collimator for the piece transmitted light that makes to accept filter
Upper and lower layered arrangement.
The bottom surface of second right-angle prism is fitted closely with the first optical prism top surface, and the main cross section of the two is mutually perpendicular to put
It sets.The working principle of the structure as shown in figure 3, incident optical collimator by after the light collimation containing 2N (N >=4) a wavelength, from the
The bottom surface area A of one optical prism II is refracted into inside the first optical prism, and polychromatic light reaches the right angle of the first optical prism II
Face S2 back reflection is to right-angle surface S1, then reflects up to the bottom surface area B of the first optical prism II, the bottom of first optical prism II
The face area B is sequentially placed multiple filter plates, when polychromatic light reaches the light λ 1 of first filter plate transmission setting wavelength and reflects remaining
The light of wavelength, through S1, S2 reflection is until transmiting the light of setting wavelength X 2 and reflecting the light of its commplementary wave length, with this on next filter plate
Analogize, successively the light of N number of wavelength is separated and is projected；Light by n-th filter plate λ n reflection passes through the straight of the second right-angle prism I
The light wave for projecting λ n+1 on the bottom surface of the first optical prism through the N+1 filter plate λ n+1 is projected after edged surface S3, S4 reflection, instead
Penetrate the light wave of λ n+2...... λ 2n, these reflection light waves using the first optical prism two right-angle surface S1 and S2 reflection,
It projects and projects and reflect on the filter plate of prism bases, the light wave of λ n+2...... λ 2 is divided outgoing, the output optical fiber
Collimator is used to receive the light beam of corresponding filter plate transmission.
The incident angle of incident light and incoming position have codetermined the light caused by signal light is turned back once in the present invention
Beam displacement.Described two layers of the output optical fiber collimator is evenly distributed, every layer of N number of collimator of arrangement, incident optical collimator and other
Collimator lens top is concordant.
The present invention places the first optical prism and the second right-angle prism according to the orthogonal position in main cross section, thus real
The WDM of dual layer arrangement is now obtained, for the wavelength division multiplexer of more general filter plate type under the conditions of same incidence angle, volume can reach original
There is the half of volume, greatly reduces the size of wavelength division multiplexer.
Preferably, first optical prism first side and second side and the second right angle corner angle it is first straight
Reflectance coating is plated on arm of angle reflecting surface and the second right-angle side reflecting surface.If incident light angle is less than 1.8 degree, light is realized in right-angle surface
Total reflection, above-mentioned each reflecting surface can not plate reflectance coating.
In order to improve the reliability of equipment, it is preferred that first optical prism and the second right-angle prism and filter plate
Thermal expansion coefficient it is same or similar, that is, use the trade mark of the same race glass, in temperature change, the coefficient of expansion of component it is identical or
Close, optical path change caused by avoiding size of devices from changing improves stabilization of equipment performance.
Preferably, the optical path between the filter plate and the output optical fiber collimator is equipped with the folding of adjustment emergent light angle
Prism is penetrated, so that incident optical collimator is arranged in parallel with all the output optical fiber collimators.By the way that refracting prisms are arranged, so that institute
There is emergent light whole exiting parallel, the dense arrangement of collimator can be better achieved.
Preferably, the refracting prisms are wedge shape, the right-angle side of prism wedge is parallel with filter plate, and bevel edge corresponds to
Penetrate the end face setting of optical fiber collimator.
It is that the present invention has the utility model has the advantages that
(1) present invention collimates filter plate and incident optical collimator and the output optical fiber by the first optical prism of setting
Optical path between device is totally reflected, to make light path folding, obtains the wave of the free-space structure based on low-angle filter plate
Division multiplexer.
(2) present invention on the basis of the first optical prism by being arranged the second right-angle prism, the reflection in two right-angle side faces
So that the output optical fiber collimator point two layers is evenly distributed, in conjunction with the reflection of the first side and second side of the first optical prism,
Optical path is repeatedly folded, space is reduced, volume-diminished to original half can be directly integrated into transceiver, be compressed
The volume of wavelength division multiplexing equipment, substantially reduces economic cost.
In addition, reducing energy consumption, the temperature stability of device is improved, each component uses close encapsulation technology, improves production
The stability of product, convenient for storage and transport.
Detailed description of the invention
Fig. 1 is the wavelength division multiplexer multichannel schematic illustration with right-angle prism of the invention based on low-angle.
Fig. 2 is the schematic perspective view of the wavelength division multiplexer of embodiment 1.
Fig. 3 is the wavelength division multiplexer multichannel schematic illustration of double right-angle prisms of the invention based on low-angle.
Fig. 4 is the schematic perspective view of the wavelength division multiplexer of embodiment 2.
Fig. 5 is the positive structure schematic of the wavelength division multiplexer of embodiment 2.
Fig. 6 is the reverse structure schematic of the wavelength division multiplexer of embodiment 2.
Fig. 7 is the side structure schematic diagram of the wavelength division multiplexer of embodiment 2.
Fig. 8 is the wavelength division multiplexer multichannel schematic illustration with prism wedge of the invention based on low-angle.
Fig. 9 is the schematic perspective view of the wavelength division multiplexer of embodiment 3.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
As depicted in figs. 1 and 2, the wavelength division multiplexer of the present embodiment include incident optical collimator 11, it is right-angle prism 12, more
Group filter plate 13 and the output optical fiber collimator 14, right-angle prism 12 have the first right-angle side reflecting surface S1 and the second right-angle side anti-
Face S2 and inclined edge surfaces are penetrated, right-angle prism 12 is bonded together with bottom plate 15, and two right angle reflectings surface plating of right-angle prism 12 is anti-
Film is penetrated, if incident light angle, less than 1.8 degree, light realizes total reflection in right-angle surface, then can not have to plating reflectance coating.Above-mentioned component
The support baseboard that incident optical fiber collimator is turned back and transmit and exported as light beam, as compact dense wave division multiplexer
Chief component.
Filter plate 13 is equipped with four pieces, so that tool is λ 1, λ 2, λ 3, λ 4 respectively there are four output waveband, in right-angle prism 12
It is successively bonded on inclined edge surfaces along its main cross section bottom edge.The light end that goes out of each filter plate 13 is mounted on outgoing optical collimator 14, uses
In the light beam for receiving corresponding filter plate transmission.Incident optical collimator 11 and all the output optical fiber collimators 14 are fixedly mounted
On bottom plate 15.Incident optical collimator 11 and the output optical fiber collimator 14 totally 5 in the same plane, incident optical collimator
11 are arranged in the side of the output optical fiber collimator 14, and incident optical collimator 11 and 2 the output optical fiber collimator is parallel to each other (angle
About θ ° of degree), the direction of other two the output optical fiber collimator is parallel to each other (angle is about-θ °), exists centainly with the former
Angle.
Incident optical collimator 11 introduces multi-wavelength signals light beam with the angle of α, straight by two of right-angle prism 12
Edged surface total reflection, signal light are incident on first filter plate 13 by the inclined edge surfaces of right-angle prism 12 with α angle, filter plate 13
Allow light of the wavelength in 1 wave band of λ to penetrate, is received by the output optical fiber collimator 14, the light of other wavelength makes light using reflection
On the filter plate for reaching 2 wave band of λ, filter plate allows wavelength to penetrate in the light of 2 wave band of λ, is connect by corresponding the output optical fiber collimator
It receives, the light of other wavelength is using reflection, onto the filter plate of 3 wave band of λ, allows wavelength to penetrate in the light of 3 wave band of λ, is corresponded to
The output optical fiber collimator receive, the light of other wavelength allows wavelength to exist by reflection by the filter plate of light emission to 4 wave band of λ
The light of 4 wave band of λ penetrates, and is received by the output optical fiber collimator, and the light of other wavelength is reflected back right-angle prism 12, realizes DWDM device
Dense wave division multipurpose function.
Embodiment 2
As shown in fig. 3 to 7, wavelength division multiplexer provided in this embodiment increases a right-angle prism and the filter plate is set
There are eight pieces, so that having eight output wavebands is λ respectively1、λ2、λ3、λ4、λ5、λ6、λ7、λ8, remaining structure and embodiment 1 are similar
Seemingly.
Specifically, the wavelength division multiplexer of the present embodiment includes incident optical collimator 21, the first optical prism 22 and second
Right-angle prism 26, multiple groups filter plate 23 and the output optical fiber collimator 24.
First optical prism 22 includes the first side S1 and second side S2 of 45 ° of isosceles settings, and be parallel to each other
Top and bottom, the second right-angle prism 26 include the first right-angle side reflecting surface S3 and the second right-angle side reflecting surface S4 and bevel edge
Face, the inclined edge surfaces of the second right-angle prism 26 and the top surface of the first optical prism 22 fit closely, and the master of the second right-angle prism 26
Section and the main cross section of the first optical prism 22 are mutually perpendicular to, incident light enter the second right-angle prism 26 after, can generate one to
The angle of upper segregation forms dual layer arrangement to realize that light is propagated in 22 neutral body of the first optical prism.
The first side S1 and second side S2 of first optical prism 22 and the first right-angle side of the second right angle corner angle 26
Reflectance coating is plated on reflecting surface S3 and the second right-angle side reflecting surface S4.If incident light angle is less than 1.8 degree, light is realized in right-angle surface
Total reflection, above-mentioned each reflecting surface can not plate reflectance coating.Incident optical as light beam is turned back and transmitted and exported to above-mentioned component
The support baseboard of collimator, the chief component as compact dense wave division multiplexer.
Filter plate 23 is equipped with eight pieces, and having eight output wavebands is λ respectively1、λ2、λ3、λ4、λ5、λ6、λ7、λ8, in the first light
It learns to divide two layers on the bottom surface of prism 22 along its main cross section bottom edge and successively be bonded.The light end that goes out of each filter plate 23 is mounted on outgoing
Optical collimator 24, for receiving the light beam of corresponding filter plate transmission.
Wavelength division multiplexer further includes the bottom plate 25 of fixed incident optical fiber collimator and the output optical fiber collimation, and bottom plate 25 is bonded in
Between two column filter plates of 22 bottom surface of the first optical prism, incident optical collimator 21 is fixed on part outgoing optical collimator 24
The upper surface of bottom plate 25 and it is in same plane, remaining outgoing optical collimator is fixed on the lower surface of bottom plate 25 and in same
Plane.Part the output optical fiber collimator and incident optical collimator are placed in parallel (angle is about θ °), rest part the output optical fiber
Shape is (angle is about-θ °) at a certain angle therewith for collimator.The surface plating Nian Jie with the first optical prism 22 of bottom plate 25 is anti-reflection
Film.
Incident optical collimator is refracted into the by after the light collimation containing 8 wavelength, from the bottom surface area A of the first optical prism
Inside one optical prism, polychromatic light reaches the right-angle surface S2 back reflection of the first optical prism to right-angle surface S1, then reflects up to the
The bottom surface area B in the bottom surface area B of one optical prism, first optical prism is sequentially placed multiple filter plates, when polychromatic light reaches
The light λ 1 of first filter plate transmission setting wavelength and the light for reflecting its commplementary wave length, through S1, S2 reflection is until on next filter plate
The light of transmission setting wavelength X 2 and the light for reflecting its commplementary wave length, and so on, successively the light of 4 wavelength is separated and is projected；By
The first optical prism is projected after right-angle surface S3, the S4 reflection that the light of 4th filter plate λ 4 reflection passes through the second right-angle prism
The light wave for projecting λ 5 on bottom surface through the 5th filter plate λ 5, reflects the light wave of λ 6...... λ 8, light waves of these reflections are using the
The reflection of two right-angle surface S1 and S2 of one optical prism projects and projects and reflect on the filter plate of prism bases, by λ
6...... the light wave of λ 8 is divided outgoing, and the output optical fiber collimator receives the light beam of corresponding filter plate transmission.
The transmitting in second 26 liang of right-angle side faces of right-angle prism so that the output optical fiber collimator 24 divide two layers it is evenly distributed, in conjunction with
The reflection of the first side and second side of first optical prism 22 repeatedly folds optical path, reduces space, volume-diminished to original
Some halfs can be directly integrated into transceiver, have compressed the volume of wavelength division multiplexing equipment, realize the close of DWDM device
Collect wavelength-division multiplex function.
Embodiment 3
As shown in Figure 8 and Figure 9, the wavelength division multiplexer of the present embodiment increases a prism wedge, remaining structure and embodiment 1
It is similar.
Specifically, the wavelength division multiplexer of the present embodiment includes incident optical collimator 31, right-angle prism 32, multiple groups filter plate
33 and the output optical fiber collimator 34, right-angle prism 32 have the first right-angle side reflecting surface S1 and the second right-angle side reflecting surface S2 with
And inclined edge surfaces, right-angle prism 32 are bonded together with bottom plate 15, two right angle reflectings surface of right-angle prism 32 plate reflectance coating, if entering
For shooting angle less than 1.8 degree, light realizes total reflection in right-angle surface, then can not have to plating reflectance coating.Above-mentioned component is as light beam
Turn back and transmit and export the support baseboard of incident optical fiber collimator, the main composition as compact dense wave division multiplexer
Part.
Filter plate 33 is equipped with four pieces, so that tool is λ 1, λ 2, λ 3, λ 4 respectively there are four output waveband, in right-angle prism 32
It is successively bonded on inclined edge surfaces along its main cross section bottom edge.The light end that goes out of each filter plate 33 is mounted on outgoing optical collimator 34, uses
In the light beam for receiving corresponding filter plate transmission.Incident optical collimator 31 and all the output optical fiber collimators 34 are fixedly mounted
On bottom plate 35, incident optical collimator 31 and the output optical fiber collimator 34 totally 5 in the same plane and end face is aligned, all
The end face line of collimator is parallel with the inclined edge surfaces of right-angle prism 32.
Prism wedge 36 (angle of wedge δ) is installed in optical path between part filter plate and corresponding the output optical fiber collimator,
Prism wedge 36 is bonded on bottom plate 35, and the right-angle side of prism wedge 36 is parallel with filter plate and has certain distance, prism wedge
Bevel edge and the end face of the output optical fiber collimator also have a certain distance, incident optical collimator 31 and all the output optical fiber collimators
34 are parallel to each other (angle is about θ °).
Incident optical collimator 31 introduces multi-wavelength signals light beam with the angle of α, straight by two of right-angle prism 32
Edged surface total reflection, signal light are incident on the filter plate 33 of 1 wave band of λ by the inclined edge surfaces of right-angle prism 32 with α angle, filter plate
Allow light of the wavelength in 1 wave band of λ to penetrate, is received by the output optical fiber collimator 34, the light of other wavelength makes light using reflection
On the filter plate for reaching 2 wave band of λ, filter plate allows wavelength to penetrate in the light of 2 wave band of λ, reflects by prism wedge 36, and wavelength exists
The light of 2 wave band of λ is received by corresponding the output optical fiber collimator, and the light of other wavelength is using reflection, to the filter plate of 3 wave band of λ
On, allow wavelength to penetrate in the light of 3 wave band of λ, received by corresponding the output optical fiber collimator, the light of other wavelength, will by reflection
In light emission to the filter plate of 4 wave band of λ, allows wavelength to penetrate in the light of 4 wave band of λ, reflected by prism wedge 36, wavelength is in 4 wave of λ
The light of section is received by the output optical fiber collimator, and the light of other wavelength is reflected back right-angle prism 32, makes institute by prism wedge 36
There is emergent light whole exiting parallel, so that the dense wave division multipurpose function of DWDM device be better achieved.
Claims (9)
1. a kind of compact wavelength division multiplexer, including incident optical collimator, the first optical prism, multiple groups filter plate and outgoing
Optical fiber collimator, which is characterized in that first optical prism includes the first side that isosceles are arranged and second side and bottom
Face, the incident optical collimator and multiple groups filter plate are along the first optical prism main cross section bottom edge arrangement, the incident optical
Collimator emits incident light, and first side and second side reflection, multiple groups filter plate of the light beam through the first optical prism are successively saturating
It penetrates the light of setting wavelength and reflects its remaining light, its remaining light of reflection passes through the first side and second side of the first optical prism again
Next filter plate is reflexed to, the output optical fiber collimator is used to receive the light beam of corresponding filter plate transmission.
2. compact wavelength division multiplexer as described in claim 1, which is characterized in that the bottom surface of first optical prism
Incident optical range plates anti-reflection film, and outgoing optical range configures filter plate.
3. compact wavelength division multiplexer as described in claim 1, which is characterized in that the filter plate is pasted onto the first optics rib
The bottom surface of mirror.
4. compact wavelength division multiplexer as described in claim 1, which is characterized in that first optical prism further includes and institute
The parallel top surface in bottom surface is stated, the top surface is equipped with the second right-angle prism, the main cross section of second right-angle prism and the first light
The main cross section for learning prism is mutually perpendicular to.
5. compact wavelength division multiplexer as claimed in claim 4, which is characterized in that second right-angle prism includes first straight
Arm of angle reflecting surface and the second right-angle side reflecting surface, the second right-angle prism are totally reflected the light beam being emitted from the first optical prism top surface,
Make to accept filter the output optical fiber collimator layered arrangement up and down of piece transmitted light.
6. compact wavelength division multiplexer as claimed in claim 5, which is characterized in that the first side of first optical prism
With plate reflectance coating on the first right-angle side reflecting surface and the second right-angle side reflecting surface of second side and the second right angle corner angle.
7. compact wavelength division multiplexer as claimed in claim 4, which is characterized in that first optical prism and the second right angle
The thermal expansion coefficient of prism and filter plate is identical.
8. compact wavelength division multiplexer as described in claim 1, which is characterized in that the filter plate and the output optical fiber collimator
Between optical path be equipped with the refracting prisms of adjustment emergent light angle so that incident optical collimator and all the output optical fibers collimate
Device is arranged in parallel.
9. compact wavelength division multiplexer as claimed in claim 8, which is characterized in that the refracting prisms are wedge shape, wedge-shaped rib
The right-angle side of mirror is parallel with filter plate, and bevel edge corresponds to the end face setting of the output optical fiber collimator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247905.1A CN109917516B (en) | 2019-03-29 | 2019-03-29 | Compact wavelength division multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247905.1A CN109917516B (en) | 2019-03-29 | 2019-03-29 | Compact wavelength division multiplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109917516A true CN109917516A (en) | 2019-06-21 |
| CN109917516B CN109917516B (en) | 2024-04-05 |
Family
ID=66967631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910247905.1A Active CN109917516B (en) | 2019-03-29 | 2019-03-29 | Compact wavelength division multiplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109917516B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123436A (en) * | 2020-02-24 | 2020-05-08 | 福建天蕊光电有限公司 | Color light wavelength division multiplexing module for 5G application and assembling method thereof |
| CN111736267A (en) * | 2020-07-27 | 2020-10-02 | 武汉沃隆云网通信技术股份有限公司 | Ultra-small compact type multi-channel wavelength division multiplexing module |
| CN113866897A (en) * | 2021-09-30 | 2021-12-31 | 苏州伽蓝致远电子科技股份有限公司 | Compact wavelength division multiplexer and wavelength division multiplexing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278031Y (en) * | 2008-08-15 | 2009-07-22 | 武汉光迅科技股份有限公司 | 1*M*N optical switch |
| CN202649522U (en) * | 2012-06-12 | 2013-01-02 | 翔光光通讯器材（昆山）有限公司 | WDM multiplexing and demultiplexing device with small structure |
| CN103176278A (en) * | 2013-03-08 | 2013-06-26 | 华中科技大学 | Optical mixer for reflective coherent receivers |
| CN204101771U (en) * | 2014-09-02 | 2015-01-14 | 博立达（厦门）科技有限公司 | Multiport duplex free space coupling wavelength division multiplexer |
| CN105425338A (en) * | 2015-11-10 | 2016-03-23 | 武汉电信器件有限公司 | Wavelength division multiplexing/demultiplexing component |
| CN105938222A (en) * | 2015-12-31 | 2016-09-14 | 杭州富光科技有限公司 | Small-angle-type-filter-plate-based compact type wavelength division multiplexer |
| CN206892396U (en) * | 2017-01-12 | 2018-01-16 | 中国计量大学 | A kind of multichannel wavelength division multiplexer of hierarchal arrangement |
| CN209728234U (en) * | 2019-03-29 | 2019-12-03 | 中国计量大学 | A kind of compact wavelength division multiplexer |
-
2019
- 2019-03-29 CN CN201910247905.1A patent/CN109917516B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278031Y (en) * | 2008-08-15 | 2009-07-22 | 武汉光迅科技股份有限公司 | 1*M*N optical switch |
| CN202649522U (en) * | 2012-06-12 | 2013-01-02 | 翔光光通讯器材（昆山）有限公司 | WDM multiplexing and demultiplexing device with small structure |
| CN103176278A (en) * | 2013-03-08 | 2013-06-26 | 华中科技大学 | Optical mixer for reflective coherent receivers |
| CN204101771U (en) * | 2014-09-02 | 2015-01-14 | 博立达（厦门）科技有限公司 | Multiport duplex free space coupling wavelength division multiplexer |
| CN105425338A (en) * | 2015-11-10 | 2016-03-23 | 武汉电信器件有限公司 | Wavelength division multiplexing/demultiplexing component |
| CN105938222A (en) * | 2015-12-31 | 2016-09-14 | 杭州富光科技有限公司 | Small-angle-type-filter-plate-based compact type wavelength division multiplexer |
| CN206892396U (en) * | 2017-01-12 | 2018-01-16 | 中国计量大学 | A kind of multichannel wavelength division multiplexer of hierarchal arrangement |
| CN209728234U (en) * | 2019-03-29 | 2019-12-03 | 中国计量大学 | A kind of compact wavelength division multiplexer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123436A (en) * | 2020-02-24 | 2020-05-08 | 福建天蕊光电有限公司 | Color light wavelength division multiplexing module for 5G application and assembling method thereof |
| CN111736267A (en) * | 2020-07-27 | 2020-10-02 | 武汉沃隆云网通信技术股份有限公司 | Ultra-small compact type multi-channel wavelength division multiplexing module |
| CN113866897A (en) * | 2021-09-30 | 2021-12-31 | 苏州伽蓝致远电子科技股份有限公司 | Compact wavelength division multiplexer and wavelength division multiplexing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109917516B (en) | 2024-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105717589B (en) | A kind of monochromatic light mouth multidiameter delay light emission component | |
| US4244045A (en) | Optical multiplexer and demultiplexer | |
| CN105938222B (en) | compact wavelength division multiplexer based on small-angle filter plate | |
| CN103744145B (en) | Single-optical-port wavelength division multiplexing/demultiphotoelectric photoelectric transceiver device | |
| CN109917516A (en) | A kind of compact wavelength division multiplexer | |
| CN104656286A (en) | Miniature identical-wavelength single-core two-way optical transceiver module | |
| CN106526753A (en) | Low-loss-type multichannel wavelength division multiplexer | |
| CN109613654B (en) | Multichannel parallel wavelength division multiplexing/demultiplexing light splitting component and optical device thereof | |
| JP2022500970A (en) | Single-core bidirectional optical transmission / reception assembly | |
| WO2016112576A1 (en) | Wavelength division multiplexing/de-multiplexing device and optical transmission assembly | |
| CN105988222A (en) | Combiner | |
| CN105158853A (en) | Novel integrated micro-optical wavelength division multiplexing module, and method of multiplexing and demultiplexing by employing module | |
| CN203502618U (en) | Multipath wavelength division multiplexer | |
| CN209728234U (en) | A kind of compact wavelength division multiplexer | |
| CN104460009B (en) | A kind of wave multiplexer | |
| WO2012106886A1 (en) | Spectroscopic device, optical multiplex device and method, and optical add-drop multiplex apparatus | |
| CN207457545U (en) | A kind of miniaturization DWDM wavelength division multiplexers of low-angle optical filter | |
| WO2023040536A1 (en) | Single-fiber multi-directional optical transceiver and optical module | |
| CN216285820U (en) | Free space multiplex wavelength division multiplex device with turning structure | |
| CN207473129U (en) | A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter | |
| CN210803779U (en) | 18-wave miniaturized wavelength division multiplexer of small-angle optical filter | |
| CN109802745B (en) | 8-channel wavelength division multiplexing/demultiplexing device for 200G/400G optical transceiver module | |
| CN210348082U (en) | Wave splitting and combining optical assembly | |
| CN210986105U (en) | Free space wavelength division multiplexer | |
| CN210605101U (en) | Multipath wavelength demultiplexing light receiving component based on optical waveguide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |