CN210666111U - Passive optical assembly of high-speed optical module - Google Patents
Passive optical assembly of high-speed optical module Download PDFInfo
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- CN210666111U CN210666111U CN201921617174.7U CN201921617174U CN210666111U CN 210666111 U CN210666111 U CN 210666111U CN 201921617174 U CN201921617174 U CN 201921617174U CN 210666111 U CN210666111 U CN 210666111U
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Abstract
The utility model relates to a high-speed optical module's passive optical component, including the fiber connector, many optic fibre, a plurality of LC connectors, optic fibre ribbon and fiber array head, the one end of optic fibre and the one end of optic fibre ribbon stretch into respectively and stretch out from the other end of fiber connector, and the one end of optic fibre and the one end of optic fibre ribbon are connected with outside light path respectively, the other end of optic fibre stretches into and stretches out from the other end from the one end of LC connector, and be connected with outside LC adapter, the other end of optic fibre ribbon stretches into and fixes the V inslot on the substrate from the one end of fiber array head, and the other end of optic fibre ribbon stretches out from the other end of fiber array head, the other end. The utility model discloses an adopt LC connector and fiber array head to adopt the optical fiber connector to multiplex, realized the receipt and the transmission integration of light signal, improved high-speed optical module's space utilization, satisfied high-speed optical module to with integrated level and miniaturized demand, simple structure is reasonable, small.
Description
Technical Field
The utility model relates to an optical communication technical field especially relates to a passive optical component of high-speed optical module.
Background
With the rapid development of communication technology and the rapid increase of practical application, the research of large-capacity optical fiber communication systems has great application value.
The optical fiber array and the optical fiber connector are widely applied to optical devices, and corresponding 1: 4. 1: 8. 1: 16. 1: 32, etc. with different branch ratios.
With the rapid development of technologies such as big data and 5G, in the prior art, in products such as a photoelectric module, a wavelength division multiplexing system, and a wavelength selective switch, a light emitting module and a light receiving module are usually separately arranged, but in reality, the requirements of the existing high-speed optical module on integration level and miniaturization cannot be met, so that the products have large volume, redundant functions, and high cost.
Disclosure of Invention
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a passive optical component of high-speed optical module.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a passive optical component of a high-speed optical module comprises a multi-core optical fiber connector, a plurality of optical fibers, LC connectors, optical fiber ribbons and optical fiber array heads, wherein the number of the optical fibers is the same as that of the optical fibers, the LC connectors, the optical fiber ribbons and the optical fiber array heads are in one-to-one correspondence, one ends of the optical fibers and one ends of the optical fiber ribbons extend into and are fixed in channels in the optical fiber connectors respectively from one ends of the optical fiber connectors, one ends of the optical fibers and one ends of the optical fiber ribbons extend out from the other ends of the optical fiber connectors respectively, the other ends of the optical fibers extend into and are fixed in the channels in the corresponding LC connectors from the corresponding ends of the LC connectors respectively, the optical fibers extend out from the other ends of the LC connectors and are connected with an external LC adapter, and the other ends of the optical fiber ribbons extend into and are fixed in V-shaped grooves on a substrate, and the other end of the optical fiber ribbon extends out from the other end of the optical fiber array head, the other end of the optical fiber ribbon is an inclined reflecting surface which forms an included angle with the upper surface of the optical fiber ribbon, and the other end of the optical fiber array head is coupled and connected with an external optical power detector.
The utility model has the advantages that: the utility model discloses a high-speed optical module's passive optical component is through adopting LC connector and fiber array head to adopt the optical fiber connector multiplexing, realized the receipt and the transmission integration of light signal, improved high-speed optical module's space utilization, satisfied high-speed optical module to with integrated level and miniaturized market demand, simple structure is reasonable, and is small, especially adapted large tracts of land is used widely.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
further: the optical fiber connector is an MPO connector, and an included angle between the end face of one end, connected with the external light path, of the MPO connector and the upper end face is 81.5-82.5 degrees.
The beneficial effects of the further scheme are as follows: through incidences angle is set up between MPO connector and the one end terminal surface that outside light path is connected and the up end, convenient and outside light path coupling, can reduce the reflection of light signal transmission in light to reduce return loss, in order to reduce all reflection interference of light signal in the fiber connector, the interference killing feature is stronger when making light signal pass through the MPO connector, receives the reflection influence in the communication line as far as possible.
Further: the optical fiber is the optical fiber with the model G657A2 or G657B 3.
Further: one end of the optical fiber and one end of the optical fiber ribbon are both ground and polished, and the angle between one end of the optical fiber and the upper surface thereof and the angle between the end face of one end of the optical fiber ribbon and the upper surface thereof are both 40-43 degrees.
The beneficial effects of the further scheme are as follows: the angle between one end of the optical fiber and the upper surface of the optical fiber and the angle between the end face of one end of the optical fiber ribbon and the upper surface of the optical fiber ribbon are set to be 40-43 degrees, so that the problem of vertical coupling between the optical fiber array and an external device can be well solved, the size is small, the optical fiber array can be well used in an optical module, and the optical fiber array is particularly suitable for being applied to an optical fiber array in a passive product, and the transmission rate is high.
Further: the length of the other end of the optical fiber extending out of the corresponding LC connector is 2.0-2.1mm, and the maximum outer diameter of the LC connector is not more than 2.2 mm.
The beneficial effects of the further scheme are as follows: by controlling the length of the other end of the optical fiber extending out of the corresponding LC connector, the other end of the optical fiber can be conveniently ground and polished, so that the end face of the other end of the optical fiber is better coupled with an external LC adapter.
Further: the optical fiber ribbon adopts optical fibers with the model numbers of G657A2 or G657B 3.
Further: and the end face of the other end of the optical fiber ribbon is ground and polished, and the included angle between the end face of the other end of the optical fiber ribbon and the upper surface of the optical fiber ribbon is 40-43 degrees.
The beneficial effects of the further scheme are as follows: the end face of the other end of the optical fiber ribbon is ground and polished, so that an included angle between the end face of the other end of the optical fiber ribbon and the upper surface of the optical fiber ribbon is 40-43 degrees, the problem of vertical coupling between an optical fiber array and an external device can be well solved, the optical fiber array is small in size, can be well used in an optical module, is particularly suitable for being applied to an optical fiber array in a passive product, and is high in transmission rate.
Further: the optical fiber array head comprises a substrate and a cover plate, the length of the cover plate along the direction of a V-shaped groove is smaller than that of the substrate, the other end of an optical fiber ribbon extends into the V-shaped groove from one end of the substrate and extends out from the other end of the substrate, the other end, close to the substrate, of the optical fiber ribbon is exposed out of the cover plate and fixed in the V-shaped groove in the substrate through shadowless glue, and the included angle between the end face of the other end of the substrate and the upper surface of the substrate is equal to the included angle between the end face of the other end of the optical fiber ribbon and the.
Drawings
Fig. 1 is a front view of a passive optical module of a high-speed optical module according to the present invention;
fig. 2 is a side view of the passive optical assembly of the high speed optical module of the present invention;
fig. 3 is a cross-sectional view of an optical fiber array head according to the present invention;
fig. 4 is a top view of the fiber array head of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the optical fiber array comprises an optical fiber connector 2, an optical fiber 3, an LC connector 4, an optical fiber ribbon 5 and an optical fiber array head;
51. base sheet, 52, cover sheet, 53, shadowless glue.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, a passive optical assembly of a high-speed optical module includes a multi-core optical fiber connector 1, a plurality of optical fibers 2, LC connectors 3, optical fiber ribbons 4 and an optical fiber array head 5, the number of the LC connectors 3 is the same as that of the optical fibers 2, and the LC connectors 3, the optical fiber ribbons 4 and the optical fiber array head 5 are in one-to-one correspondence, one end of each of the optical fibers 2 and one end of each of the optical fiber ribbons 4 extend from one end of the optical fiber connector 1 and are fixed in a channel of the optical fiber connector 1, one end of each of the optical fibers 2 and one end of each of the optical fiber ribbons 1 are coupled with an external optical path, the other end of each of the optical fibers 2 extends from one end of the corresponding LC connector 3 and is fixed in a channel of the corresponding LC connector 3, and the optical fibers 2 extend from the other end of the LC connector 3 and are, the other end of the optical fiber ribbon 4 extends into and is fixed in a V-shaped groove on the substrate of the optical fiber array head 5 from one end of the optical fiber array head 5, the other end of the optical fiber ribbon 4 extends out from the other end of the optical fiber array head 5, the other end of the optical fiber ribbon 4 is an inclined reflecting surface which forms an included angle with the upper surface of the optical fiber ribbon, and the other end of the optical fiber array head 5 is in coupling connection with an external optical power detector.
The utility model discloses a high-speed optical module's passive optical component is through adopting LC connector and fiber array head to adopt the optical fiber connector multiplexing, realized the receipt and the transmission integration of light signal, improved high-speed optical module's space utilization, satisfied high-speed optical module to with integrated level and miniaturized market demand, simple structure is reasonable, and is small, especially adapted large tracts of land is used widely.
the utility model discloses an in one or more embodiments, fiber connector 1 is the MPO connector, the one end terminal surface that MPO connector and external light path are connected is 81.5 ° -82.5 °. through with set up the contained angle between one end terminal surface that MPO connector and external light path are connected and the up end, convenient and external light path coupling can reduce the reflection of light signal transmission in light to reduce return loss, in order to reduce all reflection interference of light signal in fiber connector 1 for the interference killing feature is stronger when light signal passes through MPO connector 1, receives the reflection influence in the communication line as far as possible.
The MPO connector is one of the types of optical fiber connectors, and is often used as a connector type of high-speed transmission standard, such as the ieee802.3bm standard for 40G/100G transmission, or the like. The MPO connector is a multi-core multi-channel plug-in connector. The device is characterized in that a rectangular insertion core with the nominal diameter of 6.4mm x 2.5mm is used for positioning and centering by using two guide holes with the diameters of 0.7mm and guide needles on the left and right end faces of the insertion core. The optical fiber coaxial connector is used for connecting 2-12-core side-by-side optical fibers, and can be used for connecting at most two rows of 24-core optical fibers in a coaxial manner. When in butt joint, a spring arranged at the tail part of the inserting core applies axial pressure on the optical fiber until the outer frame sleeve of the connector and the adapter are locked. The side surface of the insertion core is provided with a convex key which is used for limiting the relative position between the connectors during connection so as to determine the correct butt joint sequence of the optical fibers.
Preferably, in one or more embodiments of the present invention, the optical fiber 2 is a type G657a2 or G657B3 optical fiber.
In one or more embodiments of the present invention, the one end of the optical fiber 2 and the one end of the optical fiber ribbon 4 are both ground and polished, and the angle between the one end of the optical fiber 2 and the upper surface thereof and the angle between the end surface of the one end of the optical fiber ribbon 4 and the upper surface thereof are 40 to 43 degrees. The angle between one end of the optical fiber 2 and the upper surface of the optical fiber and the angle between the end face of one end of the optical fiber ribbon 4 and the upper surface of the optical fiber are set to be 40-43 degrees, so that the problem of vertical coupling between the optical fiber array head and an external device can be well solved, the size is small, the optical fiber array head can be well used in an optical module, and is particularly suitable for being applied to an optical fiber array head in a passive product, and the transmission rate is high.
Preferably, in one or more embodiments of the present invention, the length of the other end of the optical fiber 2 extending out of the LC connector 3 is 2.0-2.1mm, and the maximum outer diameter of the LC connector 3 is not greater than 2.2 mm. By controlling the length of the other end of the optical fiber 2 extending out of the corresponding LC connector 3, the other end of the optical fiber 2 can be conveniently ground and polished, so that the end face of the other end of the optical fiber 2 is better coupled with an external LC adapter.
In one or more embodiments of the present disclosure, the optical fiber ribbon 4 is an optical fiber having a type G657a2 or G657B 3.
the utility model discloses an in one or more embodiments, the terminal surface of the other end of optical fiber ribbon 4 is through grinding and polishing processing, just the contained angle between the terminal surface of the other end of optical fiber ribbon 4 and its upper surface is 40-43 degrees, through with the terminal surface of the other end of optical fiber ribbon 4 is through grinding and polishing processing, makes the terminal surface of its other end and the contained angle β between its upper surface be 40-43 degrees, can solve the problem of the perpendicular coupling of fiber array head and external device well, and is small, can be used for in the optical module well, especially is fit for being applied to the fiber array head in the passive product, and transmission rate is very fast.
The optical fiber array head 5 is used for mounting the optical fiber ribbon on the array substrate by utilizing a V-shaped groove. The other end of the optical fiber ribbon 4 is a bare fiber portion from which the coating of the optical fiber is removed and is placed in the V-groove, pressurized by the pressurizer member and adhered by the shadowless adhesive. At the coupling end of the fiber array head, the fiber optic ribbon 4 is precisely positioned for coupling with an external optical power detector.
As shown in fig. 3 and 4, in one or more embodiments of the present invention, the optical fiber array head 5 includes a base sheet 51 and a cover sheet 52, a length of the cover sheet 52 along a V-groove direction is smaller than a length of the base sheet 51, the other end of the optical fiber ribbon 4 extends into the V-groove from one end of the base sheet 51 and extends out from the other end of the base sheet 51, the other end of the optical fiber ribbon 4 close to the base sheet 51 is exposed out of the cover sheet 52 and fixed in the V-groove on the base sheet 51 by a shadowless adhesive 53, and an included angle between an end surface of the other end of the base sheet 51 and an upper surface thereof is equal to an included angle between an end surface of the other end of the optical fiber ribbon 4.
The utility model discloses a high-speed optical module's passive optical component, when the transmission, by LC connector 3 receives the light signal of outside transmission light path transmission, and passes through optic fibre 2 transmission as for the light path is received in the outside of fiber connector 1, when receiving, by the light signal of outside transmission light path transmission is received to fiber connector 1 to transmit through optic fibre area 4 extremely fiber array head 5 launches to received by outside optical power detector, realize simultaneous transmission and receipt, and it is integrative with the receipt to collect the transmission, simple structure is reasonable, and is small, has satisfied high-speed optical module to the market ization demand with integrated level and miniaturation.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A passive optical module for a high speed optical module, comprising: the optical fiber array comprises a multi-core optical fiber connector (1), a plurality of optical fibers (2), LC connectors (3), optical fiber ribbons (4) and optical fiber array heads (5), wherein the optical fibers (2) are in the same quantity and are in one-to-one correspondence with the LC connectors (3), the optical fiber ribbons (4) and the optical fiber array heads (5), one ends of the optical fibers (2) and the optical fiber ribbons (4) are respectively extended from one ends of the optical fiber connectors (1) and fixed in channels in the optical fiber connectors (1), one ends of the optical fibers (2) and one ends of the optical fiber ribbons (4) are respectively coupled with external light paths, the other ends of the optical fibers (2) are respectively extended from one ends of the LC connectors (3) and fixed in the channels in the LC connectors (3), and the optical fibers (2) are extended from the other ends of the LC connectors (3), and be connected with outside LC adapter, the other end of optic fibre ribbon (4) stretches into and fixes from the one end of optic fibre array head (5) in the V inslot on the substrate of optic fibre array head (5), just the other end of optic fibre ribbon (4) is followed the other end of optic fibre array head (5) stretches out, the other end of optic fibre ribbon (4) is the slope plane of reflection who is the contained angle rather than the upper surface, the other end and the outside optical power detector coupling of optic fibre array head (5) are connected.
2. A high speed optical module passive optical module as claimed in claim 1, wherein: the optical fiber connector (1) is an MPO connector, and an included angle between one end face of the MPO connector connected with the external light path and the upper end face is 81.5-82.5 degrees.
3. A high speed optical module passive optical module as claimed in claim 1, wherein: the optical fiber (2) adopts an optical fiber with the model G657A2 or G657B 3.
4. A high speed optical module passive optical module as claimed in claim 1, wherein: one end of the optical fiber (2) and one end of the optical fiber ribbon (4) are both ground and polished, and the angle between one end of the optical fiber (2) and the upper surface thereof and the angle between the end face of one end of the optical fiber ribbon (4) and the upper surface thereof are both 40-43 degrees.
5. A high speed optical module passive optical module as claimed in claim 1, wherein: the length that the other end of optic fibre (2) stretched out the correspondence LC connector (3) is 2.0-2.1mm, just the biggest external diameter of LC connector (3) is not more than 2.2 mm.
6. A high speed optical module passive optical module as claimed in claim 1, wherein: the optical fiber ribbon (4) adopts optical fibers with the model numbers of G657A2 or G657B 3.
7. A high speed optical module passive optical module as claimed in any one of claims 1-6, wherein: the end face of the other end of the optical fiber ribbon (4) is ground and polished, and an included angle between the end face of the other end of the optical fiber ribbon (4) and the upper surface of the optical fiber ribbon is 40-43 degrees.
8. A high speed optical module passive optical module as claimed in claim 7, wherein: the optical fiber array head (5) comprises a base sheet (51) and a cover sheet (52), the length of the cover sheet (52) along the V-groove direction is smaller than that of the base sheet (51), the other end of the optical fiber ribbon (4) extends into the V-groove from one end of the base sheet (51) and extends out from the other end of the base sheet (51), the other end, close to the base sheet (51), of the optical fiber ribbon (4) is exposed out of the cover sheet (52) and fixed in the V-groove on the base sheet (51) through shadowless glue (53), and the included angle between the end face of the other end of the base sheet (51) and the upper surface of the base sheet is equal to the included angle between the end face of the other end of the optical fiber ribbon (4) and the upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617174.7U CN210666111U (en) | 2019-09-26 | 2019-09-26 | Passive optical assembly of high-speed optical module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617174.7U CN210666111U (en) | 2019-09-26 | 2019-09-26 | Passive optical assembly of high-speed optical module |
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| Publication Number | Publication Date |
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| CN210666111U true CN210666111U (en) | 2020-06-02 |
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| CN201921617174.7U Active CN210666111U (en) | 2019-09-26 | 2019-09-26 | Passive optical assembly of high-speed optical module |
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| CN (1) | CN210666111U (en) |
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