CN207473129U - A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter - Google Patents
A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter Download PDFInfo
- Publication number
- CN207473129U CN207473129U CN201721588890.8U CN201721588890U CN207473129U CN 207473129 U CN207473129 U CN 207473129U CN 201721588890 U CN201721588890 U CN 201721588890U CN 207473129 U CN207473129 U CN 207473129U
- Authority
- CN
- China
- Prior art keywords
- optical filter
- collimator
- light
- bezel
- micromation
- 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.)
- Active
Links
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a kind of micromation DWDM wavelength division multiplexers of low-angle optical filter, including fixed substrate, bezel, Dove prism, input collimator, N number of output collimator, the optical filter being arranged in a one-to-one correspondence with N number of output collimator, the light of each filter transmission specified wavelength, and the light of its commplementary wave length is reflected, the optical filter is separately fixed in former and later two parallel planes of bezel；The Dove prism carries out the total reflection of light, and then realizes that light path is turned back, so as to fulfill layered arrangement above and below output collimator.The utility model folds light path to reduce the space of occupying of device, realizes the micromation encapsulation of DWDM wavelength division multiplexers by setting Dove prism in the optical path.
Description
Technical field
The utility model is related to optical-fibre communications fields, and in particular to a kind of micromation DWDM wavelength-divisions of low-angle optical filter
Multiplexer.
Background technology
As the effective scheme for increasing bandwidth capacity, medium diaphragm scheme is widely used in wavelength-division multiplex technique.It is more to realize
The wavelength-division multiplex of channel multiport need to cascade multiple three port devices being individually encapsulated, and consider the inner disk fibre space of device, nothing
Method realizes micromation wavelength-division multiplex.
To realize the wavelength-division multiplex of micromation, wide-angle optical filter scheme is widely adopted, and avoids free space to light
Fine multiple coupling.For channel spacing (200nm, 5nm) coarse wavelength division multiplexing, wide-angle optical filter scheme can be achieved on；
For dense wave division multipurpose, wide-angle optical filter scheme from point of theory be it is feasible, economically for be infeasible；
For dense wave division multipurpose, when filter angle phi increase, due to the filter of two orthogonal polarizing beams
Wave property can cause Polarization Dependent Loss there are larger difference.Current optical communication is the discovery that smaller, faster, integrates
Change higher, so developing a kind of micromation DWDM wavelength division multiplexers of low-angle optical filter with regard to extremely urgent.For low-angle
Optical filter, intensive placement filter plate and collimator, need the light path grown very much, cause the more difficult reality of DWDM wavelength division multiplexers is miniaturized
It is existing.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of micromation DWDM wavelength-divisions of low-angle optical filter
Multiplexer, suitable for low-angle optical filter, size is small, unilateral fiber, can be integrated in DWDM transceivers, realize transmitting-receiving at a high speed and
It receives.
The purpose of this utility model is realized using following technical scheme：
The micromation DWDM wavelength division multiplexers of a kind of low-angle optical filter, including bezel (408), Dove prism
(407), an input collimator (411), N number of output collimator (412) and N number of optical filter (410)；
Preferably, former and later two faces of bezel (408) are mutually parallel, two faces being mutually parallel point of bezel
It Wei not first side (401) and second side (402)；Input collimator (411) and N number of output collimator (412) are placed on the
The front of one side (401), Dove prism (407) are placed on the front of second side (402), and the bottom surface of Dove prism
Face second side (402), and the bottom surface of Dove prism is mutually parallel with second side (402)；
Preferably, input collimator (411) and output collimator (412) layered and parallel placement up and down, input collimator
(411) it positioned at lower floor, and inputs collimator (411) and is placed on outside；
Preferably, optical filter (410) is provided in first side (401) and second side (402), optical filter (410) is used
In transmission specified wavelength light and reflect the light of its commplementary wave length, the output collimator (412) positioned at upper strata is right with it for receiving
The optical filter (410) from second side (402) that should be set transmitted through come light；Positioned at the output collimator (412) of lower floor
For receiving the optical filter (410) from first side (401) of corresponding setting transmitted through the light come；
Preferably, input collimator (411) emits incident light, across bezel (408) to first optical filter
(410), first optical filter (410) penetrates the light of corresponding wavelength, and transmitted light is worn after Dove prism (407) full transmitting
Bezel (408) is crossed into first output collimator (412), the light of commplementary wave length is all-trans through first optical filter (410)
It penetrates, across bezel (408) to second optical filter (410), second optical filter (410) penetrates the light of corresponding wavelength,
Into second output collimator (412), the light of commplementary wave length is after second optical filter (410) is reflected, across bezel
(408) third optical filter (410) is reached, and so on, and then realize wavelength-division multiplex function.
Preferably, Dove prism (407) includes the first plane (403), the second plane (404), third plane (405) and
Four planes (406), the first plane (403) is opposite with the second side (402) of bezel (408) to be placed in parallel, the first plane
(403), the second plane (404) and third plane (405) are coated with total reflection film, and fourth plane (406) is coated with anti-reflection film.
Preferably, micromation DWDM wavelength division multiplexers further include fixed substrate (409), and fixed substrate (409) is for fixing
Bezel (408) and Dove prism (407).
Preferably, micromation DWDM wavelength division multiplexers further include fixing bracket (414), and fixing bracket (414) is trapezoidal knot
Structure is provided with card slot on fixing bracket (414), and card slot is for fixed input collimator (411) and output collimator (412).
Preferably, micromation DWDM wavelength division multiplexers further include deviation prism (413), and deviation prism (413) is positioned at input
Between collimator (411) and bezel (408), and deviation prism (413) is placed in first side (401), deviation prism
(413) for adjusting incident light angle.
Preferably, deviation prism (413) is fixed on first side (401) using bonding way, and optical filter (410) uses
Bonding way is separately fixed at first side (401) and second side (402).
Preferably, the value of N is 1-8.
Preferably, the angle of optical filter (410) is between 2.9~3.1 degree.
Preferably, fixed substrate (409) is glass substrate.
The beneficial effects of the utility model：
The utility model is all-glass construction, which ensures the consistency of the overall structure coefficient of expansion, and device possesses height
Spend stability；And by setting Dove prism in light path, by light path folding, that reduces device occupies space, realizes small angle
Spend the dense wave division multipurpose micromation of filter plate.
Description of the drawings
Utility model is described further using attached drawing, but the embodiment in attached drawing does not form and the utility model is appointed
What is limited, without creative efforts, can also be according to the following drawings for those of ordinary skill in the art
Obtain other attached drawings.
Fig. 1 is the structure diagram being miniaturized when DWDM wavelength division multiplexers N is 8 of the utility model low-angle optical filter；
Fig. 2 is the left view signal being miniaturized when DWDM wavelength division multiplexers N is 8 of the utility model low-angle optical filter
Figure；
Fig. 3 is the schematic top plan view being miniaturized when DWDM wavelength division multiplexers N is 8 of the utility model low-angle optical filter.
Reference numeral：
401 face of bezel；402 face of bezel；403 face of Dove prism；404 face of Dove prism；Dove prism 405
Face；406 face of Dove prism；Dove prism 407；Bezel 408；Fixed substrate 409；Optical filter 410；Input collimator 411；
Output collimator 412；Deviation prism 413；Fixing bracket 414.
Specific embodiment
The utility model is further described with the following Examples.
Referring to Fig. 1, the micromation DWDM wavelength division multiplexers of a kind of low-angle optical filter, including bezel (408), trapezoidal
Prism (407), an input collimator (411), eight output collimators (412) and eight optical filters (410)；
In the present embodiment, former and later two faces of bezel (408) are mutually parallel, and two of bezel are mutually parallel
Face be respectively first side (401) and second side (402)；Input collimator (411) and eight output collimators (412) are put
It puts in the front of first side (401), Dove prism (407) is placed on the front of second side (402), and Dove prism
Bottom surface face second side (402), and the bottom surface of Dove prism is mutually parallel with second side (402)；
In the present embodiment, input collimator (411) and output collimator (412) layered and parallel placement up and down, input are accurate
Straight device (411) inputs collimator (411) and is placed on outside positioned at lower floor；
In the present embodiment, optical filter (410), optical filter are provided in first side (401) and second side (402)
(410) for transmiting the light of specified wavelength and reflecting the light of its commplementary wave length, the output collimator (412) positioned at upper strata is for receiving
The optical filter (410) from second side (402) of corresponding setting transmitted through come light；Positioned at the output collimator of lower floor
(412) for receiving the optical filter (410) from first side (401) of corresponding setting transmitted through the light come；
In the present embodiment, referring to Fig. 2, input collimator (411) emits incident light, across bezel (408) to the
One optical filter (410), first optical filter (410) penetrate the light of corresponding wavelength, and transmitted light is complete by Dove prism (407)
After transmitting, across bezel (408) into first output collimator (412), the light of commplementary wave length is through first optical filter
(410) it reflects, across bezel (408) to second optical filter (410), second optical filter (410) makes corresponding wavelength
Light penetrates, and into second output collimator (412), the light of commplementary wave length is after second optical filter (410) is reflected, across glass
Glass frame (408) reaches third optical filter (410), and so on, and then realize wavelength-division multiplex function.
In the present embodiment, Dove prism (407) includes the first plane (403), the second plane (404), third plane
(405) it is placed in parallel relatively with fourth plane (406), the first plane (403) and the second side (402) of bezel (408),
First plane (403), the second plane (404) and third plane (405) are coated with total reflection film, and fourth plane (406) is coated with increasing
Permeable membrane.
In the present embodiment, micromation DWDM wavelength division multiplexers further include fixed substrate (409), and fixed substrate (409) is used
In fixed bezel (408) and Dove prism (407).
In the present embodiment, micromation DWDM wavelength division multiplexers further include fixing bracket (414), and fixing bracket (414) is
Trapezium structure is provided with card slot on fixing bracket (414), and card slot is for fixed input collimator (411) and output collimator
(412)。
In the present embodiment, the input collimator (411) in the wavelength division multiplexer has one with output collimator (412)
A 2 α angles, wherein, α is the incidence angle design value of optical filter (410)；The wavelength division multiplexer further includes deviation prism (413),
Deviation prism (413) is between input collimator (411) and bezel (408), and deviation prism (413) is fixed on first
Side (401), deviation prism (413) is for adjusting incident light angle so that input collimator (411) and output collimator
(412) it is placed in parallel, the apex angle design β of deviation prism (413) causes the light beam after deviation prism (413) with 2 α incidences
Into bezel (408) face.
In the present embodiment, deviation prism (413) is fixed on first side (401), optical filter (410) using bonding way
First side (401) and second side (402) are separately fixed at using bonding way.
In the present embodiment, the angle of optical filter (410) is between 2.9~3.1 degree.
In the present embodiment, fixed substrate (409) is glass substrate.
Advantageous effect：Wavelength division multiplexer is all-glass construction in the present embodiment, which ensures the overall structure coefficient of expansion
Consistency, device possesses high stability；And by setting Dove prism in light path, by light path folding, device is reduced
The dense wave division multipurpose micromation for occupying space, realizing low-angle filter plate.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model rather than to this reality
With the limitation of novel protected range, although being explained in detail with reference to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (8)
1. the micromation DWDM wavelength division multiplexers of a kind of low-angle optical filter, which is characterized in that including bezel (408), ladder
Shape prism (407), an input collimator (411), N number of output collimator (412) and N number of optical filter (410)；
Former and later two faces of the bezel (408) are mutually parallel, two face difference being mutually parallel of the bezel
For first side (401) and second side (402)；The input collimator (411) and N number of output collimator (412) are put
Put in the front of the first side (401), the Dove prism (407) be placed on the second side (402) just before
Side, and second side (402) described in the bottom surface face of the Dove prism；
The input collimator (411) and the output collimator (412) layered and parallel placement up and down, the input collimator
(411) positioned at lower floor, and the input collimator (411) is placed on outside；
Optical filter (410) is provided on the first side (401) and the second side (402), the optical filter (410) is used
In transmission specified wavelength light and reflect the light of its commplementary wave length, positioned at upper strata the output collimator (412) for receive with
Its described optical filter (410) from second side (402) being correspondingly arranged transmitted through come light；Positioned at the output of lower floor
Collimator (412) is for receiving the optical filter (410) from first side (401) of corresponding setting transmitted through coming
Light；
The input collimator (411) emits incident light, across bezel (408) to first optical filter (410), first
Optical filter (410) penetrates the light of corresponding wavelength, and transmitted light is after Dove prism (407) full transmitting, across bezel
(408) into first output collimator (412), the light of commplementary wave length is totally reflected through first optical filter (410), across glass
For frame (408) to second optical filter (410), second optical filter (410) penetrates the light of corresponding wavelength, defeated into second
Go out collimator (412), the light of commplementary wave length arrives after second optical filter (410) is totally reflected across the bezel (408)
Up to third optical filter (410), and so on, and then realize wavelength-division multiplex function.
2. micromation DWDM wavelength division multiplexers according to claim 1, which is characterized in that Dove prism (407) packet
Include the first plane (403), the second plane (404), third plane (405) and fourth plane (406), first plane (403)
It is opposite with the second side (402) of bezel (408) to be placed in parallel, first plane (403), the second plane (404) and
Third plane (405) is coated with total reflection film, and the fourth plane (406) is coated with anti-reflection film.
3. micromation DWDM wavelength division multiplexers according to claim 1, which is characterized in that fixed substrate (409) is further included,
The fixed substrate (409) is for fixing the bezel (408) and the Dove prism (407).
4. micromation DWDM wavelength division multiplexers according to claim 1, which is characterized in that fixing bracket (414) is further included,
The fixing bracket (414) is trapezium structure, and card slot is provided on the fixing bracket (414), and the card slot is used to fix institute
State input collimator (411) and the output collimator (412).
5. micromation DWDM wavelength division multiplexers according to claim 1, which is characterized in that deviation prism (413) is further included,
The deviation prism (413) is between the input collimator (411) and the bezel (408), and the deviation rib
Mirror (413) is fixed in the first side (401), and the deviation prism (413) is for adjusting incident light angle.
6. micromation DWDM wavelength division multiplexers according to claim 1, which is characterized in that the value of the N is 1-8.
7. micromation DWDM wavelength division multiplexers according to claim 1, which is characterized in that the angle of the optical filter (410)
Degree is between 2.9~3.1 degree.
8. micromation DWDM wavelength division multiplexers according to claim 3, which is characterized in that the fixed substrate (409) is
Glass substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721588890.8U CN207473129U (en) | 2017-11-24 | 2017-11-24 | A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721588890.8U CN207473129U (en) | 2017-11-24 | 2017-11-24 | A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207473129U true CN207473129U (en) | 2018-06-08 |
Family
ID=62258535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721588890.8U Active CN207473129U (en) | 2017-11-24 | 2017-11-24 | A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207473129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542962A (en) * | 2019-09-24 | 2019-12-06 | 武汉光迅科技股份有限公司 | optical coupling subassembly and light emission subassembly |
| 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 |
-
2017
- 2017-11-24 CN CN201721588890.8U patent/CN207473129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542962A (en) * | 2019-09-24 | 2019-12-06 | 武汉光迅科技股份有限公司 | optical coupling subassembly and light emission subassembly |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104656286B (en) | Miniature co-wavelength uni-core bidirectional optical transceiver module | |
| CN208953742U (en) | Suitable for small-sized encapsulated multichannel light high-speed transfer reception device | |
| CN105938222B (en) | compact wavelength division multiplexer based on small-angle filter plate | |
| CN206818914U (en) | Reflection-type wavelength division multiplexer based on film filtering slice | |
| CN209728234U (en) | A kind of compact wavelength division multiplexer | |
| JP5623675B2 (en) | Optical signal multiplexing method and optical multiplexing apparatus | |
| CN104181690B (en) | 3D-MEMS optical switch | |
| CN103969745B (en) | A kind of bandwidth levelling top-type optical filter based on DLP | |
| CN105842883A (en) | Photoisolator | |
| CN107003483A (en) | Photoswitch | |
| CN109917516A (en) | A kind of compact wavelength division multiplexer | |
| CN207473129U (en) | A kind of micromation DWDM wavelength division multiplexers of low-angle optical filter | |
| CN106526753A (en) | Low-loss-type multichannel wavelength division multiplexer | |
| CN203535266U (en) | Multi-wavelength optical transceiver module of single optical fiber coupling | |
| JP6186654B2 (en) | Optical module and optical network system | |
| CN203502618U (en) | Multipath wavelength division multiplexer | |
| CN104460009B (en) | A kind of wave multiplexer | |
| CN207457545U (en) | A kind of miniaturization DWDM wavelength division multiplexers of low-angle optical filter | |
| CN211955900U (en) | Small free space wavelength division multiplexer | |
| CN110927883A (en) | Small-sized wavelength division multiplexer | |
| CN205581404U (en) | Light attenuating device and optical attenuator | |
| WO2012106886A1 (en) | Spectroscopic device, optical multiplex device and method, and optical add-drop multiplex apparatus | |
| CN209148906U (en) | Reflective wavelength division multiplexer | |
| CN206178192U (en) | Fine wavelength division multiplexing module of miniature tape trailer | |
| CN213581439U (en) | Wavelength division multiplexing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |