CN108957649B - Double-receiving double-transmitting box type sealing packaging optical device with parallel light structure - Google Patents
Double-receiving double-transmitting box type sealing packaging optical device with parallel light structure Download PDFInfo
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- CN108957649B CN108957649B CN201811206991.3A CN201811206991A CN108957649B CN 108957649 B CN108957649 B CN 108957649B CN 201811206991 A CN201811206991 A CN 201811206991A CN 108957649 B CN108957649 B CN 108957649B
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Classifications
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- 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
- G02B6/4274—Electrical aspects
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
- G02B6/4281—Electrical aspects containing printed circuit boards [PCB] the printed circuit boards being flexible
-
- 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
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
Abstract
The invention discloses a parallel light structure double-receiving double-transmitting box-type sealed packaging optical device, which comprises a box-type sealed tube shell with a multilayer ceramic circuit, wherein a first flexible circuit board and a second flexible circuit board are electrically connected to a circuit of the multilayer ceramic circuit, which is positioned outside the box-type sealed tube shell, and a first laser, a second laser, a first photodiode, a second photodiode, a first transimpedance amplifier, a second transimpedance amplifier, a reflecting mirror, a first filter, a second filter, a third filter, a fourth filter, a first collimating lens, a second collimating lens, a first focusing lens and a second focusing lens are arranged inside the box-type sealed tube shell; and a common end lens is arranged on the outer side of the third filter plate in the box-shaped sealed tube shell, and an optical fiber ferrule sleeve component is arranged at the position, close to the common end lens, of the outer part of the box-shaped sealed tube shell. The invention improves the integration level of the optical device, reduces the volume, simplifies the packaging process and improves the coupling efficiency of the device.
Description
Technical Field
The invention relates to a double-transmitting double-receiving optical device for single-mode optical fiber data transmission, which is applied to the technical field of optical communication.
Background
With the development of data centers, passive optical network fiber-to-the-home and wireless data transmission networks, the sealed package of miniaturized integrated optical transceiver devices has great demands on the application of short-distance single-mode fiber wavelength division multiplexing data transmission. The existing multi-path optical device sealing packaging method adopts single optical devices to seal and package one by one, and then carries out wavelength division multiplexing; or all lasers are hermetically packaged in one light emitting device, and all photodiodes are hermetically packaged in a light receiving device, and then wavelength division multiplexing is performed. Because of the adoption of discrete devices, the packages have low integration level, are difficult to achieve smaller volume, have more complex process and have higher cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a dual-receiving dual-transmitting box type sealing packaging optical device with a parallel optical structure.
The technical scheme adopted by the invention is as follows: the double-receiving double-emitting box-type sealed packaging optical device with the parallel optical structure comprises a box-type sealed tube shell with a multilayer ceramic circuit, wherein a first flexible circuit board and a second flexible circuit board are electrically connected to a circuit, which is positioned outside the box-type sealed tube shell, of the multilayer ceramic circuit, a first laser, a second laser, a first photodiode, a second photodiode, a first transimpedance amplifier and a second transimpedance amplifier are electrically connected to a circuit, which is positioned inside the box-type sealed tube shell, of the multilayer ceramic circuit, and the first transimpedance amplifier and the first photodiode, the second transimpedance amplifier and the second photodiode are respectively electrically connected through gold wires; a first filter, a second filter, a third filter and a fourth filter are arranged in the box-shaped sealed tube shell, and the directions of light transmission are 45 degrees; a mirror is disposed over the first photodiode and the second photodiode, wherein: the first filter plate has high reflection to lambda 1 and lambda 4, the second filter plate has high reflection to lambda 1 and lambda 2, the third filter plate has high transmission to lambda 1 and lambda 2, the fourth filter plate has high reflection to lambda 3 and lambda 4, and the reflector has high reflection to lambda 3 and lambda 4; a first collimating lens is arranged between the first laser and the first filter, and a second collimating lens is arranged between the second laser and the second filter; a first focusing lens is arranged between the fourth filter plate and the reflecting mirror, and a second focusing lens is arranged between the first filter plate and the reflecting mirror; and a common end lens is arranged on the outer side of the third filter plate in the box-shaped sealed tube shell, and an optical fiber ferrule sleeve component is arranged at the position, close to the common end lens, of the outer part of the box-shaped sealed tube shell.
Compared with the prior art, the invention has the following positive effects:
the invention relates to a parallel light structure double-receiving double-emitting box type sealing packaging optical device, which is characterized in that two lasers, two photodiodes and related components are packaged in a box type sealing packaging tube shell, and the functions of single fiber double-emitting double-receiving are realized through an internal filter and a lens, so that the integration level of the optical device is improved, the volume is reduced, the packaging process is simplified, the cost of the optical device is reduced, and the optical coupling efficiency is also improved because a collimation focusing system is adopted in an optical path.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a top view structure diagram of a dual-receiving dual-transmitting box-type sealed package optical device with a parallel light structure;
FIG. 2 is a schematic view of a box-type sealed enclosure without a cover;
FIG. 3 is a schematic view of a box-type sealed enclosure with a cover;
fig. 4 is a top view and a cross-sectional view of a mirror assembly.
Detailed Description
As shown in fig. 1, 2 and 3, the invention provides a dual-receiving dual-emitting box-type sealed package optical device with a parallel optical structure, which comprises a first laser 1, a second laser 2, a first monitoring photodiode 3, a second monitoring photodiode 4, a first photodiode 5, a second photodiode 6, a first transimpedance amplifier 7, a second transimpedance amplifier 8, a first collimating lens 9, a second collimating lens 10, a first focusing lens 11, a second focusing lens 12, a common end lens 13, a reflecting mirror 14, a first filter 15, a second filter 16, a third filter 17, a fourth filter 18, an isolator 19, an optical fiber ferrule assembly 20, a box-type sealed package 21, a first flexible circuit board 22 and a second flexible circuit board 23.
The box-type sealed tube shell 21 is provided with a multilayer ceramic circuit 212, the multilayer ceramic circuit 212 is provided with a microstrip circuit which is connected with the outside inside the box-type sealed tube shell 21, a first flexible circuit board 22 and a second flexible circuit board 23 are welded on corresponding circuits of the multilayer ceramic circuit 212 outside the box-type sealed tube shell 21 to realize electric connection, a first laser 1, a second laser 2, a first monitoring photodiode 3, a second monitoring photodiode 4, a first photodiode 5, a second photodiode 6, a first transimpedance amplifier 7 and a second transimpedance amplifier 8 are attached to the ceramic circuit of the multilayer ceramic circuit 212 inside the box-type sealed tube shell 21 through conductive silver glue to realize electric connection, the first transimpedance amplifier 7 and the first photodiode 5 are electrically connected through gold wires, and the second transimpedance amplifier 8 and the second photodiode 6 are electrically connected through gold wires;
the first filter 15, the second filter 16, the third filter 17 and the fourth filter 18 are adhered and placed inside the box-shaped sealed tube shell 21 through epoxy resin glue, and form 45 degrees relative to the light transmission direction;
a mirror 14 is placed over the first photodiode 5, the second photodiode 6;
in this embodiment, the center wavelength of the first wavelength signal light λ1 is 1577nm, the center wavelength of the second wavelength signal light λ2 is 1490nm, the center wavelength of the third wavelength signal light λ3 is 1310nm, and the center wavelength of the fourth wavelength signal light λ4 is 1270nm;
wherein, the first filter 15 is high in reflection to lambda 1, lambda 4, the second filter 16 is high in reflection to lambda 1, lambda 2, the third filter 17 is high in reflection to lambda 1, lambda 2, lambda 3, lambda 4, the fourth filter 18 is high in reflection to lambda 3, lambda 4, and the reflector 14 is high in reflection to lambda 3, lambda 4;
the external electric signals related to the first laser 1 are input through the first flexible circuit board 22 and the multilayer ceramic circuit 212 and drive the first laser 1 to emit first wavelength signal light lambda 1, the first wavelength signal light lambda 1 and the second wavelength signal light lambda 2 are combined into parallel light through the first collimating lens 9 and then reflected to the second filter 16 through the first filter 15, the second filter 16 reflects the first wavelength signal light lambda 1, the external electric signals related to the second laser 2 are input through the first flexible circuit board 22 and the multilayer ceramic circuit 212 and drive the second laser 2 to emit second wavelength signal light lambda 2 and are transmitted to the second filter 16 through the second collimating lens 10 into parallel light, the second filter 16 transmits the second wavelength signal light lambda 2, the first wavelength signal light lambda 1 and the second wavelength signal light lambda 2 are combined through the second filter and then transmitted through the third filter 17, and finally focused and coupled to the optical fiber plug-in core sleeve component 20 through the public end lens 13; because of adopting the collimation focusing light path system, compared with a single lens system, the optical lens system has higher coupling efficiency;
the third wavelength signal light lambda 3 and the fourth wavelength signal light lambda 4 are input from the optical fiber ferrule assembly 20, collimated into parallel light through the common end lens 13, transmitted to the third filter 17, reflected and transmitted to the fourth filter 18, split, transmitted through the fourth filter 18, converged through the first focusing lens 11, transmitted to the reflector 14, reflected and focused on the first photodiode 5 to convert the optical signals into electric signals, transmitted through the first transimpedance amplifier 7, the multilayer ceramic circuit 212 and the second flexible circuit board 23, reflected and transmitted through the fourth filter 18, reflected through the first filter 15, converted into converged light through the second focusing lens 12, reflected and focused on the second photodiode 6 by the reflector 14, and converted into electric signals, and output through the second transimpedance amplifier 8, the multilayer ceramic circuit 212 and the second flexible circuit board 23.
Preferably, the box-type sealed package 21 includes a metal housing 211, a multilayer ceramic circuit 212, a sealed optical window 213, and a housing cover 214;
the multi-layer ceramic circuit 212 and the metal shell 211 are in a brazing mode to ensure air tightness, the sealing light window 213 is provided with a metallization area and the metal shell 211, an air tightness encapsulation is ensured by adopting a gold-tin solder eutectic mode, and the shell cover 214 and the metal shell 211 are connected by adopting a resistance welding mode to ensure air tightness encapsulation.
Preferably, the multilayer ceramic circuit 212 has two sets of differential microstrip transmission lines for transmitting the output signals of the first and second transimpedance amplifiers, respectively, with differential impedance in the range of 100±10Ω, and two sets of differential microstrip transmission lines for transmitting the signals to the first and second lasers 1 and 2, respectively, with differential impedance in the range of 50±5Ω.
Preferably, the first flexible circuit board 22 has two sets of differential microstrip transmission lines with impedance ranges of 100±10Ω, and the second flexible circuit board 23 has two sets of differential microstrip transmission lines with impedance ranges of 50±5Ω.
Preferably, the isolator 19 may make the first wavelength signal light λ1 and the second wavelength signal light λ2 pass through unidirectionally, but not through the optical signals transmitted in the opposite direction to the first wavelength signal light λ1 and the second wavelength signal light λ2, and the main purpose is to isolate the light reflected by other optical contact surfaces after the first wavelength signal light λ1 and the second wavelength signal light λ2 pass through the isolator.
The device further comprises a first mirror support 141 and a second mirror support 142, as shown in fig. 4, having inclined surfaces thereon for supporting and placing the mirror 14 along the inclined surfaces, the mirror being adhered to the inclined surfaces by epoxy glue, the inclined surfaces having an angle in the range of 45 deg. + -5 deg., the mirror deflecting light in the horizontal direction by 90 deg. to be incident on the first photodiode 5, the second photodiode 6.
Preferably, the first laser 1 and the second laser 2 emit signal light at the front ends, and the rear ends also emit backlight signals with a certain proportion, and the first monitor photodiode 3 and the second monitor photodiode 4 are respectively arranged at the rear ends of the first laser 1 and the second laser 2 and are respectively used for receiving the backlight signals emitted by the rear ends of the first laser 1 and the second laser 2 and converting the light signals into electric signals for outputting, so that the power change of the lasers can be monitored in real time.
Claims (9)
1. The utility model provides a two box-type sealed package optical device that receive and dispatch of parallel light structure which characterized in that: the multi-layer ceramic circuit is positioned in the box-type sealed tube shell, and is electrically connected with a first flexible circuit board and a second flexible circuit board, and is electrically connected with a first laser, a second laser, a first photodiode, a second photodiode, a first transimpedance amplifier and a second transimpedance amplifier, wherein the first transimpedance amplifier is electrically connected with the first photodiode, the second transimpedance amplifier and the second photodiode through gold wires respectively; a first filter, a second filter, a third filter and a fourth filter are arranged in the box-shaped sealed tube shell, and the directions of light transmission are 45 degrees; a mirror is disposed over the first photodiode and the second photodiode, wherein: the first filter plate has high reflection to lambda 1 and lambda 4, the second filter plate has high reflection to lambda 1 and lambda 2, the third filter plate has high transmission to lambda 1 and lambda 2, the fourth filter plate has high reflection to lambda 3 and lambda 4, and the reflector has high reflection to lambda 3 and lambda 4; a first collimating lens is arranged between the first laser and the first filter, and a second collimating lens is arranged between the second laser and the second filter; a first focusing lens is arranged between the fourth filter plate and the reflecting mirror, and a second focusing lens is arranged between the first filter plate and the reflecting mirror; a common end lens is arranged on the outer side of a third filter plate in the box-shaped sealed tube shell, and an optical fiber ferrule sleeve component is arranged at the position, close to the common end lens, of the outer part of the box-shaped sealed tube shell; wherein:
the lambda 1 is first wavelength signal light which is input by an external electric signal related to the first laser through the first flexible circuit board and the multilayer ceramic circuit and drives the first laser to emit; the lambda 2 is second wavelength signal light which is input by an external electric signal related to the second laser through the first flexible circuit board and the multilayer ceramic circuit and drives the second laser to emit;
and the lambda 3 and the lambda 4 are third wavelength signal light and fourth wavelength signal light respectively, the lambda 3 and the lambda 4 are collimated into parallel light through a common end lens after being input from the optical fiber ferrule assembly, and the parallel light is transmitted to a third filter for reflection and then transmitted to a fourth filter for light splitting, wherein the light is split after being reflected by the third filter, the light is split after being transmitted to the fourth filter, and the light is split after being reflected by the third filter, and the light is split after being transmitted by the fourth filter, wherein the light is split after being transmitted by the fourth filter, and the light is split after being reflected by the third filter, and the light is split after the light is transmitted by the fourth filter through the fourth filter and the light. And the lambda 3 is transmitted through the fourth filter and then converged through the first focusing lens, then transmitted to the reflector to be reflected and focused on the first photodiode, the optical signal is converted into an electric signal to be output through the first transimpedance amplifier, the multilayer ceramic circuit and the second flexible circuit board, the lambda 4 is reflected and transmitted through the fourth filter and then transmitted to the first filter and then reflected and converted into converged light through the second focusing lens, and the converged light is reflected by the reflector and focused on the second photodiode, and the optical signal is converted into the electric signal to be output through the second transimpedance amplifier, the multilayer ceramic circuit and the second flexible circuit board.
2. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 1, wherein: the first monitoring photodiode and the second monitoring photodiode are respectively arranged at the rear ends of the first laser and the second laser.
3. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 2, wherein: the first laser, the second laser, the first monitoring photodiode, the second monitoring photodiode, the first photodiode, the second photodiode, the first transimpedance amplifier and the second transimpedance amplifier are respectively attached to a ceramic circuit of which the multilayer ceramic circuit is positioned in the box-type sealed tube shell through conductive silver glue.
4. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 1, wherein: the first filter plate, the second filter plate, the third filter plate and the fourth filter plate are respectively stuck inside the box-type sealed tube shell through epoxy resin glue.
5. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 1, wherein: an isolator is provided between the second filter and the third filter.
6. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 1, wherein: the box-type sealed tube shell comprises a metal shell, a multilayer ceramic circuit, a sealed light window and a shell cover; the multi-layer ceramic circuit and the metal shell are hermetically packaged in a brazing mode, the sealed optical window is provided with a metallized area, the metal shell and the multi-layer ceramic circuit are hermetically packaged in a gold-tin solder eutectic mode, and the shell cover and the metal shell are hermetically packaged in a resistance welding mode.
7. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 1, wherein: the first flexible circuit board is provided with two groups of differential microstrip transmission lines with impedance ranges of 100+/-10 omega, and the second flexible circuit board is provided with two groups of differential microstrip transmission lines with impedance ranges of 50+/-5 omega.
8. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 7, wherein: the multilayer ceramic circuit is provided with two groups of differential microstrip transmission lines for respectively transmitting output signals of the first transimpedance amplifier and the second transimpedance amplifier, wherein the differential impedance is in a range of 100+/-10 omega, and the multilayer ceramic circuit is also provided with two groups of differential microstrip transmission lines for respectively transmitting signals to the first laser and the second laser, and the differential impedance range is 50+/-5 omega.
9. The dual-reception dual-transmission box-type hermetically sealed package optical device with a parallel optical structure according to claim 1, wherein: and two ends of the reflecting mirror are respectively stuck to the first reflecting mirror bracket and the second reflecting mirror bracket with 45-degree inclined planes through epoxy resin glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206991.3A CN108957649B (en) | 2018-10-17 | 2018-10-17 | Double-receiving double-transmitting box type sealing packaging optical device with parallel light structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206991.3A CN108957649B (en) | 2018-10-17 | 2018-10-17 | Double-receiving double-transmitting box type sealing packaging optical device with parallel light structure |
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| Publication Number | Publication Date |
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| CN108957649A CN108957649A (en) | 2018-12-07 |
| CN108957649B true CN108957649B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811206991.3A Active CN108957649B (en) | 2018-10-17 | 2018-10-17 | Double-receiving double-transmitting box type sealing packaging optical device with parallel light structure |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683260B (en) * | 2019-01-17 | 2023-06-13 | 四川光恒通信技术有限公司 | Novel dual-emission dual-collection single-fiber four-way optical device structure and packaging technology |
| CN112285846B (en) * | 2019-07-22 | 2022-04-22 | 青岛海信宽带多媒体技术有限公司 | Optical transceiving submodule and optical module |
| GB2575205B (en) | 2019-10-08 | 2020-09-09 | Hilight Semiconductor Ltd | Opto-electronic assembly |
| CN111416269B (en) * | 2020-03-30 | 2021-09-10 | 武汉光谷信息光电子创新中心有限公司 | Light emitting device |
| CN115343810B (en) | 2022-02-25 | 2023-12-15 | 讯芸电子科技(中山)有限公司 | Box type packaged optical transceiver |
| CN115343811A (en) | 2022-04-21 | 2022-11-15 | 讯芸电子科技(中山)有限公司 | Butterfly type packaged optical transceiver |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542492A (en) * | 2003-03-27 | 2004-11-03 | 日本航空电子工业株式会社 | Optical monitor module |
| CN101083255A (en) * | 2003-09-15 | 2007-12-05 | 罗姆和哈斯电子材料有限责任公司 | Device package and methods for the fabrication and testing thereof |
| CN208737057U (en) * | 2018-10-17 | 2019-04-12 | 四川光恒通信技术有限公司 | A kind of parallel photo structure is double to receive double hair hermetically sealed optical devices of cell type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9709759B2 (en) * | 2014-04-18 | 2017-07-18 | Source Photonics (Chengdu) Co., Ltd. | NxN parallel optical transceiver |
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2018
- 2018-10-17 CN CN201811206991.3A patent/CN108957649B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542492A (en) * | 2003-03-27 | 2004-11-03 | 日本航空电子工业株式会社 | Optical monitor module |
| CN101083255A (en) * | 2003-09-15 | 2007-12-05 | 罗姆和哈斯电子材料有限责任公司 | Device package and methods for the fabrication and testing thereof |
| CN208737057U (en) * | 2018-10-17 | 2019-04-12 | 四川光恒通信技术有限公司 | A kind of parallel photo structure is double to receive double hair hermetically sealed optical devices of cell type |
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| CN108957649A (en) | 2018-12-07 |
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