CN112327425A - Waveguide coupling alignment structure and processing technology - Google Patents
Waveguide coupling alignment structure and processing technology Download PDFInfo
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- CN112327425A CN112327425A CN202011221373.3A CN202011221373A CN112327425A CN 112327425 A CN112327425 A CN 112327425A CN 202011221373 A CN202011221373 A CN 202011221373A CN 112327425 A CN112327425 A CN 112327425A
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- coupling
- waveguide
- socket
- plug
- photoelectric composite
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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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
-
- 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
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3882—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using rods, pins or balls to align a pair of ferrule ends
- G02B6/3883—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using rods, pins or balls to align a pair of ferrule ends using rods, pins or balls to align a plurality of pairs of ferrule ends
Abstract
A waveguide coupling alignment structure and a processing technology thereof comprise a photoelectric composite board, a coupling socket and a coupling plug component; the coupling socket is provided with the fine positioning boss, the photoelectric composite board is provided with the fine positioning groove, and the coupling socket and the photoelectric composite board are matched with each other through the fine positioning boss and the fine positioning groove to realize accurate positioning, so that the process of debugging and aligning the waveguide of the photoelectric composite board and the coupling part through a high-precision adjusting frame in the prior art is omitted, and the coupling socket has the advantages of simple production process, high production efficiency and low cost, and can be efficiently produced in batches; the coupling socket and the coupling plug assembly are respectively provided with a micro lens, and the coupling transmission of optical signals between the coupling socket and the coupling plug is realized through the micro lens; when the micro lens is used for coupling and transmitting optical signals, the connection alignment error between the coupling socket and the coupling plug is eliminated through the beam expanding collimation process, so that the alignment precision requirement between the coupling socket and the coupling plug is greatly reduced, and the working reliability of a product in a vibration environment is ensured.
Description
Technical Field
The invention relates to the technical field of optical waveguide plate signal coupling transmission, in particular to a waveguide coupling alignment structure and a processing technology.
Background
The existing photoelectric composite board and coupling positioning part are aligned by debugging and aligning the waveguide of the photoelectric composite board and the coupling part by using a high-precision adjusting frame, but the debugging and aligning process is complex, low in production efficiency and high in cost, so that efficient mass production cannot be carried out.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a waveguide coupling alignment structure, which comprises a photoelectric composite board, a coupling socket and a coupling plug component; the coupling socket is provided with the fine positioning boss, the photoelectric composite board is provided with the fine positioning groove, and the coupling socket and the photoelectric composite board are matched with each other through the fine positioning boss and the fine positioning groove to realize accurate positioning, so that the process of debugging and aligning the waveguide of the photoelectric composite board and the coupling part through the high-precision adjusting frame is omitted, and the coupling socket has the advantages of simple production process, high production efficiency and low cost, and can be used for efficient mass production; the coupling socket and the coupling plug assembly are respectively provided with a micro lens, and the coupling transmission of optical signals between the coupling socket and the coupling plug is realized through the micro lens; when the micro lens is used for coupling and transmitting optical signals, the connection alignment error between the coupling socket and the coupling plug is eliminated through the beam expanding collimation process, so that the alignment precision requirement between the coupling socket and the coupling plug is greatly reduced, and the working reliability of a product in a vibration environment is ensured.
In order to realize the purpose, the invention adopts the following technical scheme: a waveguide coupling alignment structure comprises a photoelectric composite board, a coupling socket and a coupling plug assembly, wherein the coupling socket is provided with a fine positioning boss and is provided with a fine positioning groove, the coupling socket and the photoelectric composite board are matched with the fine positioning groove through the fine positioning boss, and the coupling socket and the photoelectric composite board are accurately positioned, so that the technical process of debugging and aligning the waveguide of the photoelectric composite board and a coupling part through a high-precision adjusting frame is omitted, the waveguide coupling alignment structure has the advantages of simple production process, high production efficiency and low cost, and can be efficiently produced in a large scale; the coupling socket and the coupling plug assembly are connected in an alignment way through a guide pillar and a guide hole; the coupling socket and the coupling plug assembly are respectively provided with a micro lens, and the coupling transmission of optical signals between the coupling socket and the coupling plug is realized through the micro lens; when the micro lens is used for coupling and transmitting optical signals, the connection alignment error between the coupling socket and the coupling plug is eliminated through the beam expanding collimation process, so that the alignment precision requirement between the coupling socket and the coupling plug is greatly reduced, and the working reliability of a product in a vibration environment is ensured; meanwhile, when the optical signal is transmitted through the micro lens, a gap is formed between the two lenses, namely, the optical signal is transmitted in a spaced mode through the micro lens, so that physical contact between the micro lenses of the coupling socket and the coupling plug assembly is avoided, contact abrasion of the micro lens is prevented, and the plug connection service life between the coupling socket and the coupling plug assembly is greatly prolonged.
Furthermore, the photoelectric composite board comprises an electric printing board and an optical waveguide board which are arranged up and down and fixedly connected; the optical waveguide plate comprises a lower cladding, a waveguide, an upper cladding and a positioning waveguide; the lower cladding is arranged on the upper plate surface of the electric printing plate, the upper cladding is arranged on the upper surface of the lower cladding, and the waveguide and the positioning waveguide are wrapped in the upper cladding; the photoelectric composite board is provided with a socket connecting groove close to the board edge, and the bottom of the photoelectric composite board is the upper surface of the cladding; the socket spread groove both sides are equipped with thick constant head tank, and socket spread groove bottom is close to the centre and is equipped with smart constant head tank.
Furthermore, a sinking groove is formed in the front end face of the coupling socket, socket micro lenses in an array are arranged in the sinking groove, and the sinking groove is used for avoiding physical contact between the micro lenses of the coupling socket and the coupling plug assembly when the coupling socket and the coupling plug assembly are connected; socket guide posts are arranged on two sides of the sinking groove; the coupling socket is characterized in that two sides of the bottom of the coupling socket are provided with coarse positioning bosses, and the bottom of the coupling socket is provided with a fine positioning boss close to the middle.
Furthermore, the coupling socket is arranged in a socket connecting groove of the photoelectric composite board, positioning and guiding of the coupling socket in the installation process are achieved through cooperation between the coarse positioning groove and the coarse positioning boss, and accurate installation and positioning of the coupling socket are achieved through cooperation between the fine positioning groove and the fine positioning boss.
Furthermore, the coupling plug assembly comprises a plug and a plug optical cable, wherein an optical fiber is arranged in the plug optical cable; the front end part of the plug is provided with a sinking groove, an array of plug micro lenses are arranged in the sinking groove, and the plug micro lenses are aligned and coupled with optical fibers in the plug optical cable; the sinking groove is used for avoiding physical contact between the micro lenses of the coupling socket and the coupling plug assembly when the coupling socket and the coupling plug assembly are connected; plug guide holes are formed in the two sides of the sinking groove; when the coupling socket and the coupling plug assembly are connected in an opposite insertion mode, accurate connection alignment between the coupling socket and the coupling plug assembly is achieved through the matching of the socket guide post and the plug guide hole.
Further, the waveguide is provided with more than one layer.
The production process of the waveguide coupling alignment structure comprises the following production processes:
s1, processing the photoelectric composite board:
s11: after the electric printing plate is processed, processing and manufacturing an optical waveguide plate on a non-element welding surface of the electric printing plate; the optical waveguide plate is manufactured according to the sequence of a lower cladding layer, a waveguide layer, an upper cladding layer, the waveguide layer and an upper cladding layer … …, and finally the upper surface of the uppermost upper cladding layer is covered with a substrate; when the waveguide layer is manufactured, a positioning waveguide is synchronously manufactured; when the upper cladding is manufactured, the UV curing mask of the upper cladding is positioned by taking the positioning waveguide as a positioning reference, then the upper cladding is exposed and cured, and after the upper cladding is cured, uncured upper cladding polymer is washed away to form a fine positioning groove; a through groove corresponding to the coarse positioning groove and the fine positioning groove is processed in advance on the substrate on the uppermost part of the optical waveguide plate, and after the upper cladding on the uppermost layer of the optical waveguide plate is manufactured, the substrate is bonded on the surface of the upper cladding on the uppermost layer;
s12: after the substrates are bonded, manufacturing a rough positioning groove through machining;
s13: and cleaning residual dust on the surface of the photoelectric composite board, and grinding and polishing the waveguide end face of the surface of the photoelectric composite board.
S2, assembling the photoelectric composite board and the coupling socket:
clean coupling socket who makes, through the cooperation guide of thick constant head tank, thick location boss, realize coupling socket at photoelectric composite panel's accurate installation location through the cooperation of smart constant head tank, smart location boss, through viscose with both fixed connection.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses a waveguide coupling alignment structure, which comprises a photoelectric composite board, a coupling socket and a coupling plug component; the coupling socket is provided with a fine positioning boss, the photoelectric composite board is provided with a fine positioning groove, and the coupling socket and the photoelectric composite board are matched with each other through the fine positioning boss and the fine positioning groove to realize accurate positioning, so that the process of debugging and aligning the waveguide of the photoelectric composite board and the coupling part through a high-precision adjusting frame is omitted, and the coupling socket has the advantages of simple production process, high production efficiency and low cost, and can be used for efficient mass production; the coupling socket and the coupling plug assembly are respectively provided with a micro lens, and the coupling transmission of optical signals between the coupling socket and the coupling plug is realized through the micro lens; when the micro lens is used for coupling and transmitting optical signals, the connection alignment error between the coupling socket and the coupling plug is eliminated through the beam expanding collimation process, so that the alignment precision requirement between the coupling socket and the coupling plug is greatly reduced, and the working reliability of a product in a vibration environment is ensured.
Drawings
FIG. 1 is a schematic diagram of an external view of a waveguide coupling alignment structure;
FIG. 2 is a schematic view of the appearance of a photovoltaic composite panel;
FIG. 3 is an enlarged view of part A;
FIG. 4 is a schematic external view of a coupling socket;
FIG. 5 is a schematic external view of a coupling plug assembly;
fig. 6 is a schematic diagram of waveguide-coupled signal optical transmission.
In the figure: 1. a photovoltaic composite panel; 1.1, electrically printing a plate; 1.2, an optical waveguide plate; 1.2.1, lower cladding; 1.2.2, waveguide; 1.2.3, an upper cladding; 1.2.4, positioning the waveguide; 1.2.5, a coarse positioning groove; 1.2.6, a fine positioning groove; 1.3, a socket connecting groove; 2. a coupling socket; 2.1, socket micro-lens; 2.2, socket guide posts; 2.3, roughly positioning a boss; 2.4, fine positioning of the boss; 3. a coupling plug assembly; 3.1, a plug; 3.1.1, plug micro lens; 3.1.2, a plug guide hole; 3.2, plug optical cable.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
A waveguide coupling alignment structure comprises a photoelectric composite board 1, a coupling socket 2 and a coupling plug assembly 3, wherein a fine positioning boss 2.4 is arranged on the coupling socket, a fine positioning groove 1.2.6 is formed in the photoelectric composite board, and the coupling socket 2 and the photoelectric composite board 1 are matched with the fine positioning groove 1.2.6 through the fine positioning boss 2.4, are accurately positioned and are fixedly connected; the coupling socket 2 and the coupling plug assembly 3 are connected in an alignment way through a guide pillar and a guide hole; the coupling socket 2 and the coupling plug assembly 3 are both provided with micro lenses;
the photoelectric composite board 1 comprises an electric printing board 1.1 and an optical waveguide board 1.2 which are arranged up and down and fixedly connected; the optical waveguide plate 1.2 comprises a lower cladding layer 1.2.1, a waveguide 1.2.2, an upper cladding layer 1.2.3 and a positioning waveguide 1.2.4; the lower cladding 1.2.1 is arranged on the upper plate surface of the electrotype plate 1.1, the upper cladding 1.2.3 is arranged on the upper surface of the lower cladding 1.2.1, and the waveguide 1.2.2 and the positioning waveguide 1.2.4 are wrapped in the upper cladding 1.2.3; the photoelectric composite board 1 is provided with a socket connecting groove 1.3 close to the board edge, and the bottom of the photoelectric composite board is the upper surface of a cladding 1.2.3; two sides of the socket connecting groove 1.3 are provided with coarse positioning grooves 1.2.5, and the bottom of the socket connecting groove 1.3, close to the middle, is provided with a fine positioning groove 1.2.6;
the front end face of the coupling socket 2 is provided with a sinking groove, and socket micro lenses 2.1 in an array are arranged in the sinking groove; two sides of the sink groove are provided with socket guide posts 2.2; two sides of the bottom of the coupling socket 2 are provided with coarse positioning bosses 2.3, and the bottom of the coupling socket is provided with a fine positioning boss 2.4 close to the middle;
the coupling socket 2 is arranged in a socket connecting groove 1.3 of the photoelectric composite board 1, the installation positioning guide of the coupling socket 2 is realized through the matching of a coarse positioning groove 1.2.5 and a coarse positioning boss 2.3, and the installation accurate positioning of the coupling socket 2 is realized through the matching of a fine positioning groove 1.2.6 and a fine positioning boss 2.4;
the coupling plug assembly 3 comprises a plug 3.1, a plug optical cable 3.2; the front end part of the plug 3.1 is provided with a sinking groove, an array of plug micro lenses 3.1.1 are arranged in the sinking groove, and the plug micro lenses 3.1.1 are aligned and coupled with optical fibers in the plug optical cable 3.2; plug guide holes 3.1.2 are arranged on two sides of the sinking groove.
The waveguide 1.2.2 is provided with a layer.
The production process of the waveguide coupling alignment structure comprises the following production processes:
s1, processing the photoelectric composite board 1:
s11: after the electric printing plate 1.1 is processed, an optical waveguide plate is processed and manufactured on the non-element welding surface of the electric printing plate 1.1; the optical waveguide plate is manufactured according to the sequence of a lower cladding layer, a waveguide layer, an upper cladding layer, the waveguide layer and an upper cladding layer … …, and finally the upper surface of the uppermost upper cladding layer is covered with a substrate; when the waveguide layer is manufactured, the positioning waveguide 1.2.4 is synchronously manufactured; when the upper cladding is manufactured, the UV curing mask of the upper cladding is positioned by taking the positioning waveguide 1.2.4 as a positioning reference, then the upper cladding is exposed and cured, and after the upper cladding is cured, uncured upper cladding polymer is washed away to form a fine positioning groove 1.2.6; a through groove corresponding to the coarse positioning groove 1.2.5 and the fine positioning groove 1.2.6 is processed in advance on the substrate at the uppermost part of the optical waveguide plate 1.2, and after the upper cladding 1.2.3 at the uppermost layer of the optical waveguide plate 1.2 is manufactured, the substrate is bonded on the surface of the upper cladding 1.2.3 at the uppermost layer;
s12: after the base plate is bonded, the base plate is machined into a coarse positioning groove 1.2.5;
s13: and cleaning residual dust on the surface of the photoelectric composite board 1, and grinding and polishing the waveguide end face of the surface of the photoelectric composite board 1.
S2, assembling the photoelectric composite board 1 and the coupling socket 2:
The present invention is not described in detail in the prior art.
Claims (7)
1. A waveguide coupling alignment structure, comprising: the photoelectric composite board comprises a photoelectric composite board (1), a coupling socket (2) and a coupling plug assembly (3), wherein a fine positioning boss (2.4) is arranged on the coupling socket, a fine positioning groove (1.2.6) is formed in the photoelectric composite board, and the coupling socket (2) and the photoelectric composite board (1) are matched with the fine positioning groove (1.2.6) through the fine positioning boss (2.4), are accurately positioned and are fixedly connected; and the coupling socket (2) and the coupling plug assembly (3) are both provided with micro lenses.
2. The waveguide coupling alignment structure of claim 1, wherein: the photoelectric composite board (1) comprises an electric printing board (1.1) and an optical waveguide board (1.2), wherein the electric printing board and the optical waveguide board are arranged up and down and fixedly connected; the optical waveguide plate (1.2) comprises a lower cladding (1.2.1), a waveguide (1.2.2), an upper cladding (1.2.3) and a positioning waveguide (1.2.4); the lower cladding (1.2.1) is arranged on the upper plate surface of the electrotype plate (1.1), the upper cladding (1.2.3) is arranged on the upper surface of the lower cladding (1.2.1), and the waveguide (1.2.2) and the positioning waveguide (1.2.4) are wrapped in the upper cladding (1.2.3); a socket connecting groove (1.3) is arranged on the photoelectric composite board (1) close to the board edge; the socket connecting groove (1.3) both sides are equipped with thick constant head tank (1.2.5), and socket connecting groove (1.3) bottom is close to the centre and is equipped with smart constant head tank (1.2.6).
3. The waveguide coupling alignment structure of claim 1, wherein: the front end face of the coupling socket (2) is provided with a sinking groove, and socket micro lenses (2.1) in an array are arranged in the sinking groove; socket guide posts (2.2) are arranged on two sides of the sinking groove; the coupling socket (2) is characterized in that two sides of the bottom of the coupling socket (2) are provided with coarse positioning bosses (2.3), and the bottom of the coupling socket is provided with fine positioning bosses (2.4) close to the middle.
4. The waveguide coupling alignment structure of claim 1, wherein: coupling socket (2) set up in socket connecting groove (1.3) of photoelectricity composite sheet (1), realize the installation location guide of coupling socket (2) through thick constant head tank (1.2.5), thick location boss (2.3) cooperation, realize the installation accurate positioning of coupling socket (2) through the cooperation of smart constant head tank (1.2.6), smart location boss (2.4).
5. The waveguide coupling alignment structure of claim 1, wherein: the coupling plug assembly (3) comprises a plug (3.1), a plug optical cable (3.2); the front end part of the plug (3.1) is provided with a sinking groove, an array of plug micro lenses (3.1.1) are arranged in the sinking groove, and the plug micro lenses (3.1.1) are aligned and coupled with optical fibers in the plug optical cable (3.2); plug guide holes (3.1.2) are arranged on two sides of the sinking groove.
6. The waveguide coupling alignment structure of claim 2, wherein: the waveguide (1.2.2) is provided with more than one layer.
7. The production process of the waveguide coupling alignment structure is characterized by comprising the following production processes:
s1, processing the photoelectric composite board (1):
s11: after the electric printing plate (1.1) is processed, processing and manufacturing an optical waveguide plate on the non-element welding surface of the electric printing plate (1.1); the optical waveguide plate is manufactured according to the sequence of a lower cladding layer, a waveguide layer, an upper cladding layer, the waveguide layer and an upper cladding layer … …, and finally the upper surface of the uppermost upper cladding layer is covered with a substrate; when the waveguide layer is manufactured, a positioning waveguide (1.2.4) is synchronously manufactured; when the upper cladding is manufactured, the UV curing mask of the upper cladding is positioned by taking the positioning waveguide (1.2.4) as a positioning reference, the upper cladding is exposed and cured, and after the upper cladding is cured, uncured upper cladding polymer is washed away to form a fine positioning groove (1.2.6); a through groove corresponding to the coarse positioning groove (1.2.5) and the fine positioning groove (1.2.6) is processed in advance on the substrate at the uppermost part of the optical waveguide plate (1.2), and after the upper cladding (1.2.3) at the uppermost layer of the optical waveguide plate (1.2) is manufactured, the substrate is bonded on the surface of the upper cladding (1.2.3) at the uppermost layer;
s12: after the substrates are bonded, a rough positioning groove (1.2.5) is manufactured through machining;
s13: and cleaning residual dust on the surface of the photoelectric composite board (1), and grinding and polishing the waveguide end face of the board surface of the photoelectric composite board (1).
S2, assembling the photoelectric composite board (1) and the coupling socket (2):
clean coupling socket (2) of making, through the cooperation guide of thick constant head tank (1.2.5), thick location boss (2.3), realize coupling socket (2) at the accurate installation location of photoelectricity composite sheet (1) through the cooperation of smart constant head tank (1.2.6), smart location boss (2.4), through viscose with both fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011221373.3A CN112327425A (en) | 2020-11-03 | 2020-11-03 | Waveguide coupling alignment structure and processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011221373.3A CN112327425A (en) | 2020-11-03 | 2020-11-03 | Waveguide coupling alignment structure and processing technology |
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| CN112327425A true CN112327425A (en) | 2021-02-05 |
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| CN202011221373.3A Pending CN112327425A (en) | 2020-11-03 | 2020-11-03 | Waveguide coupling alignment structure and processing technology |
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| US6305848B1 (en) * | 2000-06-19 | 2001-10-23 | Corona Optical Systems, Inc. | High density optoelectronic transceiver module |
| WO2004010191A1 (en) * | 2002-07-23 | 2004-01-29 | Terahertz Photonics Ltd | Connection to optical backplane |
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Application publication date: 20210205 |