CN211180312U - High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission - Google Patents
High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission Download PDFInfo
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- CN211180312U CN211180312U CN202020001489.5U CN202020001489U CN211180312U CN 211180312 U CN211180312 U CN 211180312U CN 202020001489 U CN202020001489 U CN 202020001489U CN 211180312 U CN211180312 U CN 211180312U
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Abstract
The utility model provides a high-speed transceiver module for 5G intermediate transmission, the transceiver module comprises a receiving light path for receiving signals and a transmitting light path for sending signals; the receiving optical path and the transmitting optical path share a receiving and transmitting port of a receiving and transmitting module; a collimator is arranged in the receiving and transmitting port to collimate light entering the receiving and transmitting port into parallel light; the transmitting end of the transmitting-receiving module is provided with a laser chip for transmitting signals, the receiving end is provided with a photoelectric receiving chip for receiving signals, and optical signals transmitted by the laser chip are converted into parallel light through a lens part at the starting end of a transmitting optical path and then reach a transmitting-receiving port through the transmitting optical path for emitting; the optical signal received by the receiving and transmitting port is collimated into parallel light and then reaches the photoelectric receiving chip through the receiving optical path; the utility model discloses can realize that the narrow signal in wavelength interval effectively parts or is synthetic with the low-angle light filter, through shorter optical path, obtain the effective ripples and the ripples of dividing of two light signals in narrow wavelength interval, obtain higher coupling efficiency simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the optical fiber communication technique and specifically relates to a high-speed transceiver module that is arranged in 5G to pass.
Background
With the increasing popularity of optical fiber networks, especially the rapid implementation of current 5G networks, and the massive arrangement of point-to-point data transmission, especially 5G mid-transmission and forward-transmission nodes, the market demand for single-fiber bidirectional components with narrow wavelength intervals is also increasing.
In the current 5G network, the fronthaul network is transmission from AAU (active antenna processing unit) to DU (distribution unit), and the middlhaul network is transmission from DU (distribution unit) to CU (central unit). the middlhaul network has a large amount of processed information, needs high speed, needs 50G bidirectional transmission, and is long-distance transmission, so that wavelengths near 0 dispersion are used, the dispersion is smaller, and the wavelength interval is narrower, L AN WDM is used for high-speed, long-distance, and low-dispersion transmission, and has a well-established industrial foundation, so that L AN WDM standard wavelength is adopted in the 5G middlhaul network, and 1295.56nm and 1309.14nm are used as the wavelengths of the transmitting end and the receiving end, respectively, the wavelength interval is 13.58nm, and the wavelength interval is narrow, and if a wavelength bandwidth of 1.3nm is deducted, the actual wavelength interval is 12.28 nm.
The single-fiber bidirectional components on the market at present are optical signals with two wavelengths and a wide wavelength interval, for example, FTTH (fiber to the home) uses signals with wavelengths of 1310nm and 1490nm, and the wavelength interval is more than 100 nm.
In a traditional dual-wavelength single-fiber bidirectional optical transceiver module assembly structure, the wavelengths of transmitting and receiving ends need to be wide enough, otherwise, transmission wavelength signals or reflection wavelength signals cannot be effectively separated.
Disclosure of Invention
The utility model provides a high-speed transceiver module for passing in 5G can realize that the narrow signal in wavelength interval effectively parts or is synthetic with the low-angle light filter, through shorter optical path, obtains the effective ripples and the ripples of combining of two way light signal in narrow wavelength interval, obtains higher coupling efficiency simultaneously.
The utility model adopts the following technical scheme.
A high-speed transceiver module for 5G midstream comprises a receiving optical path for receiving signals and a transmitting optical path for transmitting signals; the receiving optical path and the transmitting optical path share a receiving and transmitting port (1) of a receiving and transmitting module; a collimator is arranged in the receiving and transmitting port to collimate light entering the receiving and transmitting port into parallel light; the transmitting end (2) of the transceiving module is provided with a laser chip (21) for transmitting signals, the receiving end (3) is provided with a photoelectric receiving chip (31) for receiving signals, and optical signals transmitted by the laser chip (21) are converted into parallel light through a lens part (5) at the starting end of a transmitting optical path and then reach a transceiving port through the transmitting optical path for emitting; the optical signal received by the receiving and transmitting port is collimated into parallel light and then reaches the photoelectric receiving chip through the receiving optical path.
When the receiving port and the transceiving port of the photoelectric receiving chip (31) are positioned on the same straight line, in the receiving light path, after incident light is collimated into parallel light A through the transceiving port (1), the parallel light A is transmitted through a first optical filter (41), then is incident to a positive lens (32) in front of the photoelectric receiving chip (31), and then is converged into an optical signal incident to the receiving port of the photoelectric receiving chip (31) by the positive lens (32);
under the structure, in the emission light path, laser emitted by the laser chip (21) is converted into parallel light B through the lens part (5) and then emitted to the first reflecting sheet (42) through the free space isolator (6), and the parallel light B is reflected to the first optical filter (41) through the first reflecting sheet (42) and then reflected to the receiving and transmitting port by the first optical filter (41) to be emitted.
When the receiving port and the transceiving port of the photoelectric receiving chip (31) are positioned on the same straight line, the first optical filter (41) is a small-angle optical filter capable of separating or synthesizing two paths of optical signals with narrow wavelength intervals.
And a second reflector plate (44) can be additionally arranged at the output end of the free space isolator (6), and the second reflector plate (44) reflects the parallel light B to adjust the emergent direction of the parallel light B.
When the optical signal transmitting end of the laser chip (21) and the receiving and transmitting port are positioned on the same straight line, in the transmitting light path, laser emitted by the laser chip (21) is converted into parallel light B through the lens part (5), then is emitted to the first optical filter (41) through the free space isolator (6), and is transmitted through the first optical filter (41) and then reaches the receiving and transmitting port to be emitted;
under the structure, in the receiving light path, after incident light is collimated into parallel light A through the transceiving port (1), the parallel light A firstly passes through the first optical filter (41) to the first reflector (42), then is reflected to the second optical filter (43) by the first reflector (42), then is transmitted to the positive lens (32) in front of the photoelectric receiving chip (31) through the second optical filter (43), and then is converged into an optical signal incident to the receiving port of the photoelectric receiving chip (31) by the positive lens (32).
When the optical signal transmitting end of the laser chip (21) and the transceiving port are positioned on the same straight line, the first optical filter (41) is a small-angle optical filter capable of separating or synthesizing two paths of optical signals with narrow wavelength intervals; the second filter (43) is a 0 degree filter.
The lens part (5) is a lens group or a single aspheric lens, when the lens part is the lens group, laser emitted by the laser chip (21) is converted into convergent light through the convex lens (22), and the convergent light is converted into parallel light B through the negative lens (7).
The laser chip of the transmitting end of the receiving and transmitting module comprises a laser diode, and the photoelectric receiving chip of the receiving end comprises a photodiode.
The laser diode can be a laser diode with a refrigeration package, and the photodiode can be an avalanche photodiode.
The utility model discloses realize that the narrow signal in wavelength interval effectively parts or is synthetic with the low-angle light filter, the effective ripples and the minute ripples of combining of two way light signal of narrow wavelength interval are obtained to the short optical path of accessible, obtain higher coupling efficiency simultaneously.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of a receiving port and a transceiving port of a photoelectric receiving chip located on the same straight line;
FIG. 2 is a schematic diagram of a receiving port and a receiving/transmitting port of a photoelectric receiving chip being located on the same straight line, and a second reflector being added to a free space isolator;
fig. 3 is a schematic diagram of a laser chip with an optical signal transmitting end and a transceiving port on the same straight line;
FIG. 4 is a schematic view of a lens section as a lens group;
in the figure: 1-a transmit-receive port; 2-a transmitting end; 3-a receiving end; 5-a lens portion; 6-free space isolator; 7-a negative lens; 21-laser chip; a 22-convex lens; 31-a photoelectric receiving chip; 32-positive lens; 41-a first filter; 42-a first reflector sheet; 43-a second filter; 44-second reflector sheet.
Detailed Description
As shown in fig. 1 to 4, a high-speed transceiver module for 5G midstream includes a receiving optical path for receiving signals and a transmitting optical path for transmitting signals; the receiving optical path and the transmitting optical path share a receiving and transmitting port 1 of a receiving and transmitting module; a collimator is arranged in the receiving and transmitting port to collimate light entering the receiving and transmitting port into parallel light; the transmitting end 2 of the transceiving module is provided with a laser chip 21 for transmitting signals, the receiving end 3 is provided with a photoelectric receiving chip 31 for receiving signals, and optical signals transmitted by the laser chip 21 are converted into parallel light through a lens part 5 at the starting end of a transmitting optical path and then reach a transceiving port through the transmitting optical path for emitting; the optical signal received by the receiving and transmitting port is collimated into parallel light and then reaches the photoelectric receiving chip through the receiving optical path.
When the receiving port and the transceiving port of the photoelectric receiving chip 31 are located on the same straight line, in the receiving optical path, after the incident light is collimated into parallel light a by the transceiving port 1, the parallel light a is transmitted by the first optical filter 41, then is incident to the positive lens 32 in front of the photoelectric receiving chip 31, and then is converged by the positive lens 32 into an optical signal incident to the receiving port of the photoelectric receiving chip 31;
in this structure, in the emission light path, the laser emitted by the laser chip 21 is first converted into parallel light B by the lens part 5, and then emitted to the first reflection sheet 42 by the free space isolator 6, and the parallel light B is first reflected to the first optical filter 41 by the first reflection sheet 42, and then reflected to the transceiving port by the first optical filter 41 to be emitted.
When the receiving port and the transceiving port of the photoelectric receiving chip 31 are located on the same straight line, the first optical filter 41 is a small-angle optical filter capable of separating or synthesizing two paths of optical signals with narrow wavelength intervals.
A second reflector plate 44 may be additionally disposed at the output end of the free space isolator 6, and the second reflector plate 44 reflects the parallel light B to adjust the emitting direction of the parallel light B.
When the optical signal emitting end of the laser chip 21 and the receiving and transmitting port are located on the same straight line, in the emitting light path, laser emitted by the laser chip 21 is converted into parallel light B through the lens part 5, then is emitted to the first optical filter 41 through the free space isolator 6, and is emitted to the receiving and transmitting port after being transmitted through the first optical filter 41;
in this structure, in the receiving optical path, after the incident light is collimated into the parallel light a through the transceiving port 1, the parallel light a firstly passes through the first optical filter 41 to the first optical filter 42, then is reflected to the second optical filter 43 by the first optical filter 42, then is transmitted to the positive lens 32 in front of the photoelectric receiving chip 31 through the second optical filter 43, and then is converged by the positive lens 32 into the optical signal incident to the receiving port of the photoelectric receiving chip 31.
When the optical signal transmitting end of the laser chip 21 and the transceiving port are located on the same straight line, the first optical filter 41 is a small-angle optical filter capable of separating or synthesizing two paths of optical signals with narrow wavelength intervals; the second filter 43 is a 0 degree filter.
The lens part 5 is a lens group or a single aspheric lens, and when the lens part is a lens group, the laser emitted by the laser chip 21 is converted into convergent light through the convex lens 22, and the convergent light is converted into parallel light B through the negative lens 7.
The laser chip of the transmitting end of the receiving and transmitting module comprises a laser diode, and the photoelectric receiving chip of the receiving end comprises a photodiode.
The laser diode can be a laser diode with a refrigeration package, and the photodiode can be an avalanche photodiode.
In this example, as shown in fig. 1, when the receiving port and the transceiving port of the optoelectronic receiving chip 31 are located on the same straight line, the transmitting end is located on the side, and the receiving end is located right behind the input/output end. The receiving end isolation degree in the structure can meet the requirement, and a 0-degree optical filter is not needed to be added to increase the isolation degree. The structure is simple and easy to debug.
In this example, as shown in fig. 2, the receiving port and the transceiving port of the optoelectronic receiving chip 31 are located on the same straight line, and when the transmitting end and the receiving end are both right behind the input/output end, the overall space of the structure is larger, and the receiving end does not need to add a 0-degree optical filter to increase the isolation.
In this example, as shown in fig. 3, when the optical signal transmitting end of the laser chip 21 and the transceiving port are located on the same straight line, the transmitting end is directly behind the input/output end, and the receiving end is on the side. In order to increase the isolation of the receiving end in such a structure, a 0-degree filter needs to be added in front of the receiving end. The structure is completely compatible with the existing optical transceiver module in appearance, and the requirement on the packaging appearance is not changed.
Claims (9)
1. A high-speed transceiver module for 5G relay is characterized in that: the receiving and transmitting module comprises a receiving optical path for receiving signals and a transmitting optical path for transmitting signals; the receiving optical path and the transmitting optical path share a receiving and transmitting port (1) of a receiving and transmitting module; a collimator is arranged in the receiving and transmitting port to collimate light entering the receiving and transmitting port into parallel light; the transmitting end (2) of the transceiving module is provided with a laser chip (21) for transmitting signals, the receiving end (3) is provided with a photoelectric receiving chip (31) for receiving signals, and optical signals transmitted by the laser chip (21) are converted into parallel light through a lens part (5) at the starting end of a transmitting optical path and then reach a transceiving port through the transmitting optical path for emitting; the optical signal received by the receiving and transmitting port is collimated into parallel light and then reaches the photoelectric receiving chip through the receiving optical path.
2. The high-speed transceiver module for 5G midstream according to claim 1, wherein: when the receiving port and the transceiving port of the photoelectric receiving chip (31) are positioned on the same straight line, in the receiving light path, after incident light is collimated into parallel light A through the transceiving port (1), the parallel light A is transmitted through a first optical filter (41), then is incident to a positive lens (32) in front of the photoelectric receiving chip (31), and then is converged into an optical signal incident to the receiving port of the photoelectric receiving chip (31) by the positive lens (32);
under the structure, in the emission light path, laser emitted by the laser chip (21) is converted into parallel light B through the lens part (5) and then emitted to the first reflecting sheet (42) through the free space isolator (6), and the parallel light B is reflected to the first optical filter (41) through the first reflecting sheet (42) and then reflected to the receiving and transmitting port by the first optical filter (41) to be emitted.
3. A high-speed transceiver module for 5G midstream according to claim 2, wherein: when the receiving port and the transceiving port of the photoelectric receiving chip (31) are positioned on the same straight line, the first optical filter (41) is a small-angle optical filter capable of separating or synthesizing two paths of optical signals with narrow wavelength intervals.
4. A high-speed transceiver module for 5G midstream according to claim 2, wherein: and a second reflector plate (44) can be additionally arranged at the output end of the free space isolator (6), and the second reflector plate (44) reflects the parallel light B to adjust the emergent direction of the parallel light B.
5. The high-speed transceiver module for 5G midstream according to claim 1, wherein: when the optical signal transmitting end of the laser chip (21) and the receiving and transmitting port are positioned on the same straight line, in the transmitting light path, laser emitted by the laser chip (21) is converted into parallel light B through the lens part (5), then is emitted to the first optical filter (41) through the free space isolator (6), and is transmitted through the first optical filter (41) and then reaches the receiving and transmitting port to be emitted;
under the structure, in the receiving light path, after incident light is collimated into parallel light A through the transceiving port (1), the parallel light A firstly passes through the first optical filter (41) to the first reflector (42), then is reflected to the second optical filter (43) by the first reflector (42), then is transmitted to the positive lens (32) in front of the photoelectric receiving chip (31) through the second optical filter (43), and then is converged into an optical signal incident to the receiving port of the photoelectric receiving chip (31) by the positive lens (32).
6. The high-speed transceiver module for 5G midstream according to claim 5, wherein: when the optical signal transmitting end of the laser chip (21) and the transceiving port are positioned on the same straight line, the first optical filter (41) is a small-angle optical filter capable of separating or synthesizing two paths of optical signals with narrow wavelength intervals; the second filter (43) is a 0 degree filter.
7. The high-speed transceiver module for 5G midstream according to claim 1, wherein: the lens part (5) is a lens group or a single aspheric lens, when the lens part is the lens group, laser emitted by the laser chip (21) is converted into convergent light through the convex lens (22), and the convergent light is converted into parallel light B through the negative lens (7).
8. The high-speed transceiver module for 5G midstream according to claim 1, wherein: the laser chip of the transmitting end of the receiving and transmitting module comprises a laser diode, and the photoelectric receiving chip of the receiving end comprises a photodiode.
9. The high-speed transceiver module for 5G midstream according to claim 8, wherein: the laser diode can be a laser diode with a refrigeration package, and the photodiode can be an avalanche photodiode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020001489.5U CN211180312U (en) | 2020-01-02 | 2020-01-02 | High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission |
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| CN202020001489.5U CN211180312U (en) | 2020-01-02 | 2020-01-02 | High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989106A (en) * | 2020-01-02 | 2020-04-10 | 福建天蕊光电有限公司 | High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989106A (en) * | 2020-01-02 | 2020-04-10 | 福建天蕊光电有限公司 | High-speed transceiver module for 5G (the third generation telecommunication) intermediate transmission |
| WO2021135968A1 (en) * | 2020-01-02 | 2021-07-08 | 福建天蕊光电有限公司 | High-speed transceiving module for 5g middlehaul |
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Address after: 350108 304-a130, floor 3, auxiliary building, Chuangye building, No. 8, Keji East Road, Shangjie Town, Minhou County, Fuzhou City, Fujian Province Patentee after: FUJIAN TIANRUI PHOTOELECTRIC Co.,Ltd. Address before: 350000 floor 4, block B, No.7, Gaoshi Road, Gaishan Town, Cangshan District, Fuzhou City, Fujian Province Patentee before: FUJIAN TIANRUI PHOTOELECTRIC Co.,Ltd. |
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