CN109669250A - 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
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- CN109669250A CN109669250A CN201910169776.9A CN201910169776A CN109669250A CN 109669250 A CN109669250 A CN 109669250A CN 201910169776 A CN201910169776 A CN 201910169776A CN 109669250 A CN109669250 A CN 109669250A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 96
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 59
- 238000000576 coating method Methods 0.000 claims abstract description 59
- 239000013307 optical fiber Substances 0.000 claims abstract description 33
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 7
- 210000000170 cell membrane Anatomy 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000005538 encapsulation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000005374 membrane filtration Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/424—Mounting of the optical light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4244—Mounting of the optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4245—Mounting of the opto-electronic elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention 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.It is an advantage of the invention 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 present invention relates to a kind of optical communication field, in particular to transmitting-receiving is used up in a kind of compact integrated single fiber three-way transmission
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, the devices such as light wooden unit, including wave splitting/composing device, laser, detector formed using existing optical fractionation element,
Advantage is 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, coupling
Number 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, spy
It surveys device and one assembles by precision machined metal shell, advantage is the reduction of coupling number, greatly reduces
The 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 linked office
The requirement at end.
Place improved emphatically is needed the above are the application.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of inexpensive, high-efficient compact integrated single fiber three
Transmitting-receiving optical module is used up to transmission.
For the technical problem more than solving, the present invention provides a kind of compact integrated single fiber three-way transmission to use up receipts
Luminescence component, including optical fiber collimator, laser, detector chip, the dielectric coating filter wrapped up by closing support construction
Medium, and optical fiber collimator, laser, detector chip, dielectric coating filter and spacing assembly medium installation are assembled with spacing
Become one on body same, lens, spacing assembly medium and optical fiber collimator is followed successively by below laser, between described
It is equipped with first medium film optical filters between side and optical fiber collimator away from assembly medium, is equipped between the opposite and lens of the side
Second medium film optical filters, laser, lens, first medium film optical filters, second medium film optical filters and optical fiber collimator
For center line in same optical axis, spacing assembly medium is equipped with multiple detectors being arranged side by side below nearly optical fiber collimator side
Chip, and the center line of multiple detector chips is parallel each other, is equipped between multiple detector chips and spacing assembly medium more
A dielectric coating filter being arranged side by side also is provided with multiple medium membrane filtrations being arranged side by side in the opposite side of spacing assembly medium
Upper and lower road optical signal is carried out uplink optical signal by the dielectric coating filter that a spacing assembles medium and its two sides by mating plate
Coupling, the light splitting and photoelectric conversion of downlink optical signal.
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 invention is:
1) the core conducting carrier integrated using a full light, i.e. spacing are assembled medium and upper and lower road optical signal have been carried out uplink linght
The coupling of 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 encapsulation
Difficulty and complexity, 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 advising greatly
Modelling production, cost can substantially reduce；
4) closed all dielectric optical path avoids the pollution failure problem as caused by dust, sundries etc. in free space system.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention；
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 embodiment of the present invention is described in detail below in conjunction with attached drawing.
Fig. 1 shows the concrete structure diagram of the embodiment of the present invention.As shown in Figure 1, the present invention provides a kind of compacts one
Body single fiber three-way transmission uses up transmitting-receiving optical module, 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 are situated between
Plasma membrane optical filter 803, the 4th dielectric coating filter 804, the 5th dielectric coating filter 805 and spacing assemble medium 1, and optical fiber is quasi-
Straight device, detector chip A701, detector chip B702, first medium film optical filters 801, second medium film optical filters 802, the
Three dielectric coating filters 803, the 4th dielectric coating filter 804, the 5th dielectric coating filter 805 and spacing assembly medium 1 are installed
The becoming one structure on same bottom plate 10, the lower section of laser 6 are followed successively by lens M301, spacing assembly medium 1 and light
Fine collimator, the optical fiber collimator include that 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 and lens M301 it
Between be equipped with second medium film optical filters 802, laser 6, lens M301, first medium film optical filters 801, second medium membrane filtration light
For the center line of piece 802 and optical fiber collimator in same optical axis, spacing assembly is equipped with two below 1 side nearly lens N302 of medium
A detector chip A701 being arranged side by side, detector chip B702, and detector chip A701 and detector chip B702
Center line is parallel each other, is equipped with third dielectric coating filter 803, detection between detector chip A701 and spacing assembly medium 1
The 5th dielectric coating filter 805, first medium film optical filters 801, third are equipped between device chip B702 and spacing assembly medium 1
Dielectric coating filter 803 and the 5th dielectric coating filter 805 are arranged side by side and in the same plane, in spacing assembly medium 1
Opposite side is equipped with the 4th dielectric coating filter 804, and second medium film optical filters 802 and the 4th dielectric coating filter 804 are simultaneously
Arrangement is set and in the same plane, assembles the dielectric coating filters of medium 1 and its two sides for upper and lower road light by a spacing
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 preferred embodiments of the invention, are not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of the present invention within.
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 |
|---|---|---|---|
| CN201910169776.9A CN109669250A (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 |
|---|---|---|---|
| CN201910169776.9A CN109669250A (en) | 2019-03-07 | 2019-03-07 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
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| CN109669250A true CN109669250A (en) | 2019-04-23 |
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| CN201910169776.9A Withdrawn CN109669250A (en) | 2019-03-07 | 2019-03-07 | Transmitting-receiving optical module is used up in compact integrated single fiber three-way transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812777A (en) * | 2020-07-22 | 2020-10-23 | 武汉光迅科技股份有限公司 | Wave combining and splitting device |
| CN115166911A (en) * | 2021-04-01 | 2022-10-11 | 讯芸电子科技(中山)有限公司 | Transistor outline package optical transceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111812777A (en) * | 2020-07-22 | 2020-10-23 | 武汉光迅科技股份有限公司 | Wave combining and splitting device |
| CN115166911A (en) * | 2021-04-01 | 2022-10-11 | 讯芸电子科技(中山)有限公司 | Transistor outline package optical transceiver |
| US11616577B2 (en) | 2021-04-01 | 2023-03-28 | Shunyun Technology (Zhong Shan) Limited | Optical transceiver in transistor outline package |
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Application publication date: 20190423 |
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