CN209728246U - Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission - Google Patents
Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission Download PDFInfo
- Publication number
- CN209728246U CN209728246U CN201920284272.7U CN201920284272U CN209728246U CN 209728246 U CN209728246 U CN 209728246U CN 201920284272 U CN201920284272 U CN 201920284272U CN 209728246 U CN209728246 U CN 209728246U
- Authority
- CN
- China
- Prior art keywords
- medium
- spacing
- dielectric coating
- optical
- coating filter
- 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 compact integrated single fiber three-way transmission and uses up transmitting-receiving optical module, including optical fiber collimator, laser, detector chip, dielectric coating filter and spacing assemble medium, and it is mounted on same lean on body and becomes one, lens are followed successively by below laser, spacing assembles medium and optical fiber collimator, dielectric coating filter is respectively provided between the two sides and lens of spacing assembly medium, detector chip is installed below spacing assembly medium, dielectric coating filter is equipped between detector chip and spacing assembly medium, the opposite side that spacing assembles medium is equipped with dielectric coating filter, upper and lower road optical signal is carried out to the coupling of uplink optical signal by a spacing assembly medium and its dielectric coating filter of two sides, the light splitting and photoelectric conversion of downlink optical signal.The utility model has the advantages that the core conducting carrier integrated using a full light, small in size, encapsulation difficulty is reduced, it is at low cost.
Description
Technical field
The utility model relates to a kind of optical communication field, in particular to a kind of compact integrated single fiber three-way transmission is used up
Receive and dispatch optical module.
Background technique
Tri- wavelength single fiber three-way optic communication transmission technology transmission technology of 1310/1490/1550nm is by 1550nm window
It is transmitted for downstream analog CATV, the uplink of numerous terminal users will be used for without refrigeration 1310nm semiconductor laser diode light source
Transmission, the Digital Transmission of downlink use 1490nm window instead, and the transmission of three directions is multiplexed into a light by way of similar cwdm
In fibre.This transmission technology uses point-to-multipoint transmission mode, saves equipment investment, local side apparatus and optical fiber dosage subtract significantly
Few, system reliability is higher.
The cost of single fiber three-way transmission plan finally determines the height of cost of access, and the prime cost of this scheme depends on
It is placed to the opto-electronic device of user terminal, people are referred to as tri-directional device.The cost for reducing tri-directional device has become
The problem of most paying close attention at present.
Tri-directional device mainly has following two kinds using more technical solution at present:
1, using the light wooden unit, including wave splitting/composing device, laser, detector etc. of existing optical fractionation element composition
Device, advantage are that all technologies are all very mature, be can be directly used, good reliability；The disadvantage is that volume is big, component number is more,
The number of coupling is also more, and all potential room for price-cut are small, at high cost；
2, mature optical element is encapsulated in a small-sized metal shell, passive wave splitting/composing optical filter, laser
Device, detector and one assemble by precision machined metal shell, and advantage is the reduction of coupling number, contracts significantly
The small volume of device；The disadvantage is that complex process, is not easy to realize that automation encapsulation or even some technical indicators can't be competent at net
The requirement of network local side.
Place improved emphatically is needed the above are the application.
Utility model content
Technical problem to be solved in the utility model is to provide for a kind of inexpensive, high-efficient compact integrated list
Transmitting-receiving optical module is used up in fine three-dimensional transmission.
For the technical problem more than solving, the utility model provides a kind of compact integrated single fiber three-way transmission and uses
Light receives and dispatches optical module, including the optical fiber collimator, laser, detector chip, medium membrane filtration wrapped up by closing support construction
Mating plate and spacing assemble medium, and optical fiber collimator, laser, detector chip, dielectric coating filter and spacing assemble medium
It is mounted on same lean on body to become one, lens, spacing assembly medium and optical fiber collimator, institute is followed successively by below laser
It states and is equipped with first medium film optical filters between the side and optical fiber collimator of spacing assembly medium, between the opposite and lens of the side
Equipped with second medium film optical filters, laser, lens, first medium film optical filters, second medium film optical filters and fiber optic collimator
For the center line of device in same optical axis, spacing assembly medium is equipped with multiple spies being arranged side by side below nearly optical fiber collimator side
Device chip is surveyed, and the center line of multiple detector chips is parallel each other, is set between multiple detector chips and spacing assembly medium
There are multiple dielectric coating filters being arranged side by side, also is provided with multiple media being arranged side by side in the opposite side of spacing assembly medium
Upper and lower road optical signal is carried out uplink linght letter by the dielectric coating filter that a spacing assembles medium and its two sides by film optical filters
Number coupling, downlink optical signal light splitting and photoelectric conversion.
Spacing assembly medium is glass medium, spacing assemble medium two sides paste medium film optical filters or its two
Side coated media film optical filters.
The bottom edge of optical axis and spacing the assembly medium of the optical fiber collimator is a setting angle β, assembles medium along spacing
Radial parallel laying ECP Extended Capabilities Port, the angle of reflection of each pair of dielectric coating filter is β.
Superior effect of the utility model is:
1) the core conducting carrier integrated using a full light, i.e. spacing assembly medium have been carried out upper and lower road optical signal
The coupling of traveling optical signal and the light splitting of downlink optical signal and photoelectric conversion；
2) the light splitting dielectric coating filter optimized on spacing assembly medium reduces the encapsulation step of beam splitting system, reduces
The difficulty and complexity of encapsulation, improve efficiency；
3) optical device volume further decreases, and optical coupling number is reduced to 1 time, and assembly is simpler in terms of optical path, is suitable for
Large-scale production, cost can substantially reduce；
4) closed all dielectric optical path avoids the pollution failure as caused by dust, sundries etc. in free space system and asks
Topic.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
Figure label explanation
1-spacing assembles medium；2-glass tubes；
301-lens M；302-lens N；
4-capillaries；5-optical fiber；
6-lasers；
701-detector chip A；702-detector chip B；
801-first medium film optical filters；802-second medium film optical filters；
803-third dielectric coating filters；804-the four dielectric coating filter；
805-the five dielectric coating filter；
9-ECP Extended Capabilities Ports；10-bottom plates.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing.
Fig. 1 shows the concrete structure diagram of the utility model embodiment.As shown in Figure 1, the utility model provides one kind
Transmitting-receiving optical module is used up in the transmission of compact integrated single fiber three-way, including wrapped up by closing support construction optical fiber collimator,
Laser 6, detector chip A701, detector chip B702, first medium film optical filters 801, second medium film optical filters
802, third dielectric coating filter 803, the 4th dielectric coating filter 804, the 5th dielectric coating filter 805 and spacing assemble medium
1, and optical fiber collimator, detector chip A701, detector chip B702, first medium film optical filters 801, second medium membrane filtration
Mating plate 802, third dielectric coating filter 803, the 4th dielectric coating filter 804, the 5th dielectric coating filter 805 and spacing assembly
Medium 1 is mounted on becoming one structure on same bottom plate 10, and the lower section of laser 6 is followed successively by lens M301, spacing assembly
Medium 1 and optical fiber collimator, the optical fiber collimator include optical fiber 5, capillary 4, glass tube 2 and lens N302, the spacing
Assemble medium 1 side and lens N302 between be equipped with first medium film optical filters 801, spacing assemble medium 1 opposite side with
Second medium film optical filters 802, laser 6, lens M301, first medium film optical filters 801, second are equipped between lens M301
The center line of dielectric coating filter 802 and optical fiber collimator in same optical axis, assemble under 1 side nearly lens N302 of medium by spacing
Detector chip A701, the detector chip B702 that there are two side's installations is arranged side by side, and detector chip A701 and detector
The center line of chip B702 is parallel each other, is equipped with third deielectric-coating between detector chip A701 and spacing assembly medium 1 and filters
Piece 803 is equipped with the 5th dielectric coating filter 805, first medium membrane filtration light between detector chip B702 and spacing assembly medium 1
Piece 801, third dielectric coating filter 803 and the 5th dielectric coating filter 805 are arranged side by side and in the same plane, fill in spacing
Opposite side with medium 1 is equipped with the 4th dielectric coating filter 804, and second medium film optical filters 802 and the 4th medium membrane filtration
Mating plate 804 is arranged side by side and in the same plane, passes through that a spacing assembles medium 1 and its dielectric coating filter of two sides will
Upper and lower road optical signal carries out the light splitting and photoelectric conversion of the coupling of uplink optical signal, downlink optical signal.
The spacing assembly medium 1 is glass medium, and first medium film optical filters are pasted in the two sides that spacing assembles medium 1
801, second medium film optical filters 802, third dielectric coating filter 803, the 4th dielectric coating filter 804 and the 5th medium membrane filtration
Mating plate 805.Alternatively, coating first medium film optical filters 801, second medium film optical filters in the two sides of spacing assembly medium 1
802, third dielectric coating filter 803, the 4th dielectric coating filter 804 and the 5th dielectric coating filter 805.
The bottom edge of optical axis and spacing the assembly medium 1 of the optical fiber collimator is a setting angle β, if spacing assembles medium
When 2 radial direction is sufficiently large, along the radial parallel laying ECP Extended Capabilities Port 9 of spacing assembly medium 1, the reflection of each pair of dielectric coating filter
Angle is β, and β is complementary with α, and α is the angle between the optical axis and detector chip of optical fiber collimator.
First medium film optical filters 801 are anti-reflection film optical filters, and the light of 1260-1650nm wavelength is allowed to pass through.
Second medium film optical filters 802 are red blue zone film optical filters, allow a wave band 1310nm's in single fiber three-way
Light passes through, and the light of other wave band 1490nm, 1550nm are reflected into third dielectric coating filter 803.
Third dielectric coating filter 803 is that wavelength-division multiplex is divided optical filter, is allowed one in two wave bands of 1490nm, 1550nm
The light of a wave band passes through, and the light of another wave band is reflected into the 4th dielectric coating filter 804.
4th dielectric coating filter 804 is wavelength-division multiplex reflection filter, by the light of two wave bands of 1490nm or 1550nm
It is reflected into the 5th dielectric coating filter 805.
5th dielectric coating filter 805 is anti-reflection film optical filters, and the light of 1260-1650nm wavelength is allowed to pass through.
The spacing assembles medium 1, glass tube 2, lens N302, capillary 4, optical fiber 5, laser 6, first medium membrane filtration
Mating plate 801, second medium film optical filters 802, third dielectric coating filter 803, the 4th dielectric coating filter 804 and the 5th medium
Film optical filters 805 are the Transmission system of optical path, and the light splitting of optical signal and light combination are completed in this Transmission system.
The laser 6, lens M301, second medium film optical filters 802, first medium film optical filters 801, spacing assembly
Medium 1, lens N302, capillary 4 and optical fiber 5 constitute optical signal launch coupled system.Optical signal launch coupled system will be upper
The transmitting light source of traveling optical signal, beam path alignment are together with optical isolation component assembling, so that the compact saving space of optical path.
The optical fiber 5, capillary 4, lens M301, first medium film optical filters 801, spacing assemble medium 1, second medium
Film optical filters 802, spacing assembly medium 1, third dielectric coating filter 803, spacing assemble medium 1, the 4th dielectric coating filter
804, spacing assembly medium 1, the 5th dielectric coating filter 805 constitute light splitting Transmission system.Light splitting Transmission system answers downlink
Light combination signal carries out separation according to different purposes and is transmitted in corresponding reception system.
The detector chip A701, detector chip B702 constitute receiving system, and receiving system will divide
From optical signal carry out photoelectric conversion, be transformed to electric signal, be connected by electric contact with electronic communication link.
Collimation coupling shielding system includes lens N302, glass tube 2, capillary 4 and optical fiber 5, realizes light in input optical fibre
Signal becomes collimated light and output optical signal from diverging light and is coupled in optical fiber by collimated light convergence, with traditional collimator technique
Optical signal in downlink optical fiber is coupled in light splitting Transmission system by mode by collimating shielding system.
Transmitting-receiving optical module is used up in the transmission of this single fiber three-way has a uplink optical path and two downlink optical paths, wherein uplink optical path
It is after the electric signal for carrying information is converted into optical signal by laser 6, to be situated between by lens M301, second since laser 6
Plasma membrane optical filter 802 allows the light of a wave band 1310nm in single fiber three-way to pass through, and enters in optical fiber collimator after transmission,
It is transmitted from optical fiber 5 to optical-fiber network.
Downlink optical path is after external optical signal is collimated by optical fiber collimator, to allow through first medium film optical filters 801
The light of 1260-1650nm wavelength passes through and filters out, and reaches second medium film optical filters 802, and second medium film optical filters 802 are permitted
Perhaps the light of a wave band 1310nm in single fiber three-way passes through, and the light of 1490nm and 1550nm is reflected, and reaches third deielectric-coating
Optical filter 803, third dielectric coating filter 803 are that wavelength-division multiplex is divided optical filter, only allow two wave bands of 1490nm, 1550nm
Any of the light of wave band pass into detector chip A701, photoelectric signal transformation is carried out in detector chip A701
After generate electric signal；The light of another wave band is reflected into the 4th dielectric coating filter 804, and the 4th dielectric coating filter 804 will
Light is reflected into the 5th dielectric coating filter 805, and light is entered in detector chip B702 by the 5th dielectric coating filter 805,
Another way electric signal is generated after carrying out photoelectric signal transformation in detector chip B702.
The foregoing is merely the preferred embodiments of the utility model, are not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included in the protection scope of the utility model.
Claims (3)
1. transmitting-receiving optical module is used up in a kind of compact integrated single fiber three-way transmission, it is characterised in that: including being supported by closing
Optical fiber collimator, laser, detector chip, dielectric coating filter and the spacing of encapsulated by structures assemble medium, and fiber optic collimator
Device, laser, detector chip, dielectric coating filter and spacing assembly medium are mounted on same lean on body and become one, and swash
Be followed successively by lens, spacing assembly medium and optical fiber collimator below light device, the two sides of the spacing assembly medium and lens it
Between be respectively provided with dielectric coating filter, laser, lens, dielectric coating filter and optical fiber collimator center line in same optical axis
On, multiple detector chips being arranged side by side, and the center line of multiple detector chips are installed below spacing assembly medium
It is parallel each other, be equipped with multiple dielectric coating filters being arranged side by side between multiple detector chips and spacing assembly medium,
Opposite side away from assembly medium also is provided with multiple dielectric coating filters being arranged side by side, by spacing assemble medium and its
Upper and lower road optical signal is carried out the coupling of uplink optical signal, the light splitting of downlink optical signal and photoelectricity and turned by the dielectric coating filter of two sides
It changes.
2. transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission according to claim 1, it is characterised in that:
The spacing assembly medium is glass medium, and spacing assembles the two sides paste medium film optical filters of medium or the coating of its two sides is situated between
Plasma membrane optical filter.
3. transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission according to claim 1, it is characterised in that:
The bottom edge of optical axis and spacing the assembly medium of the optical fiber collimator is a setting angle β, and the radial direction along spacing assembly medium is flat
Row lays ECP Extended Capabilities Port, and the angle of reflection of each pair of dielectric coating filter is β.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920284272.7U CN209728246U (en) | 2019-03-07 | 2019-03-07 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920284272.7U CN209728246U (en) | 2019-03-07 | 2019-03-07 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209728246U true CN209728246U (en) | 2019-12-03 |
Family
ID=68685217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920284272.7U Active CN209728246U (en) | 2019-03-07 | 2019-03-07 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209728246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669250A (en) * | 2019-03-07 | 2019-04-23 | 上海葛西光学科技有限公司 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
-
2019
- 2019-03-07 CN CN201920284272.7U patent/CN209728246U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669250A (en) * | 2019-03-07 | 2019-04-23 | 上海葛西光学科技有限公司 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105334580A (en) | Wavelength division multiplex light receiving assembly | |
| CN109839700A (en) | Optical transceiving device | |
| CN213240587U (en) | Compact optical wavelength division multiplexing demultiplexing device | |
| CN105158853B (en) | A kind of novel integrated micro-optical Interleave muiltiplexing component element and the partial wave using the component, multiplex method | |
| CN2876807Y (en) | Single fiber bidirectional three port assembly | |
| CN206020720U (en) | Tight type ripple demultiplexer/tight type wavelength division multiplexer | |
| CN206788412U (en) | Filter isolator | |
| CN109669250A (en) | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission | |
| CN209728246U (en) | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission | |
| CN207352220U (en) | The double-fiber four-way optical device of RFoG functions can be achieved | |
| CN203502617U (en) | Three-wavelength division multiplexing device | |
| CN202649522U (en) | WDM multiplexing and demultiplexing device with small structure | |
| CN206178194U (en) | Novel fine wavelength division multiplexing module of miniature tape trailer | |
| CN211955900U (en) | Small free space wavelength division multiplexer | |
| CN206058510U (en) | A kind of power information acquisition system | |
| CN202309718U (en) | Data isolation multi-channel unvarnished transmission OLT (Optical Line Terminal) integrating functions of concentrator and core board system matched with data isolation multi-channel unvarnished transmission OLT as well as electric meter networking system adopting OLT | |
| CN102447511A (en) | Light path tester | |
| CN105991455B (en) | A kind of service switching system and service switching method | |
| CN205910373U (en) | CWDM module | |
| CN201063636Y (en) | PLC type single fiber bidirectional twin port component | |
| CN212933046U (en) | Multichannel wavelength division multiplexing optical transmission device, receiving device and transceiving equipment | |
| CN206248883U (en) | Light wavelength division multiplexing | |
| CN202025112U (en) | Mode coupling optical assembly | |
| CN113970818A (en) | Single-fiber bidirectional component for realizing adjacent 20nm | |
| CN205450361U (en) | Two FWDM receiving and dispatching structures of high isolation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |