CN216646869U

CN216646869U - Array waveguide grating with micro-curved waveguide

Info

Publication number: CN216646869U
Application number: CN202123108204.1U
Authority: CN
Inventors: 李涛; 张锐
Original assignee: Nanyang Litian Industrial Co ltd
Current assignee: Nanyang Litian Industrial Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-31
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses an arrayed waveguide grating with a microbend waveguide, which relates to the technical field of gratings, in particular to an arrayed waveguide grating with a microbend waveguide, and comprises a protective box, an arrayed waveguide grating and a microbend waveguide, wherein a sealing mechanism is arranged on the inner side wall of the protective box, the sealing mechanism consists of a fixed plate, a spring and an arc-shaped sealing sleeve, a guide mechanism and a clamping mechanism are arranged between an optical fiber leading-out end and a connector, and the clamping mechanism consists of a groove, a first wedge-shaped fixture block, a second wedge-shaped fixture block, a clamping plate and a pressing sheet. This array waveguide grating with little curved waveguide through the setting of protective housing, prevents that outside dust from getting into the inside of protective housing, has reached sealed effectual purpose, through the setting of guide block and guide rail, prevents that the fiber end is impaired easily, through the setting of clamping mechanism, makes first wedge fixture block and second wedge fixture block joint, prevents that optic fibre derivation end and connector from breaking away from, has reached the purpose that prevents optic fibre and drop.

Description

Array waveguide grating with micro-bend waveguide

Technical Field

The utility model relates to the technical field of gratings, in particular to an array waveguide grating with a microbend waveguide.

Background

Arrayed waveguide gratings, which are commonly used in optical multiplexers in wavelength division multiplexed WDM systems to combine light of many wavelengths into a single optical fiber to improve the transmission efficiency of the fiber network, combine digital technology with conventional printing techniques to produce different special effects on a customized film. Arrayed waveguide gratings are based on the fundamental optical principle that light of different wavelengths interferes linearly with each other, which means that if each channel uses light with a slight wavelength difference, light of many channels can be carried by a single optical fiber with only negligible signal crosstalk. The arrayed waveguide grating can combine light of a plurality of channels into a single optical fiber at a transmitting end, and can also re-separate the light at a receiving end.

The existing array waveguide grating with the microbend waveguide has the following problems: the connection between the array waveguide grating and the microbend waveguide is unstable, easy to break and difficult to disassemble; when the array waveguide grating is connected with the microbend, alignment is not easy, so that the end of the optical fiber is easy to damage; and when the arrayed waveguide grating is exposed outside, the arrayed waveguide grating is easily damaged and the surface of the arrayed waveguide grating is stained with dust, so that the service life of the arrayed waveguide grating is reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an arrayed waveguide grating with a slightly curved waveguide, which solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: an array waveguide grating with a micro-bend waveguide comprises a protective box, an array waveguide grating and a micro-bend waveguide, wherein a fixed frame is installed on the inner bottom wall of the protective box, the array waveguide grating is installed inside the fixed frame, one end of the array waveguide grating is provided with an optical fiber access end, the other end of the array waveguide grating is provided with an optical fiber lead-out end, the array waveguide grating is connected with the micro-bend waveguide through a connector, one side of the protective box is provided with an optical fiber access hole, the other side of the protective box is provided with an installation hole matched with the connector, the inner side wall of the protective box is provided with a sealing mechanism, the sealing mechanism comprises a fixed plate, a spring and an arc-shaped sealing sleeve, the sealing mechanism is arranged on one side of the optical fiber access hole, a guide mechanism and a clamping mechanism are arranged between the optical fiber lead-out end and the connector, and the guide mechanism comprises a guide block and a guide rail, the clamping mechanism is composed of a groove, a first wedge-shaped fixture block, a second wedge-shaped fixture block, a clamping plate and a pressing sheet.

Optionally, the top of the protection box is provided with a cover plate, the protection box is fixedly connected with the cover plate through fixing screws, and the fixing screws are arranged at four corners of the cover plate.

Optionally, the end of the optical fiber access end is arranged inside the optical fiber access hole, the end of the optical fiber access end is clamped inside the sealing mechanism, the fixed plate is fixedly connected with the inner wall of the protective box, one end of the spring is fixedly connected with the bottom of the fixed plate, the other end of the spring is fixedly connected with the top of the arc-shaped sealing sleeve, the sealing mechanism is provided with two groups, the two groups are distributed in a vertically symmetrical mode about the optical fiber access hole, and the optical fiber access end is clamped between the arc-shaped sealing sleeves.

Optionally, the connector is inserted into the mounting hole, a sealing gasket is arranged on the inner wall of the mounting hole, and the outer surface of the connector abuts against the inner wall of the sealing gasket.

Optionally, the guide blocks are installed at the end of the connector, the number of the guide blocks is two and the guide blocks are symmetrically distributed, the guide rail is installed on the outer wall of the optical fiber leading-out end, and the guide blocks are connected with the guide rail in a sliding mode.

Optionally, two grooves are formed in the surface of the end of the connector, the two grooves are symmetrically distributed up and down, the first wedge-shaped fixture block is mounted on the inner top wall of each groove, the clamping plates are mounted at the top and the bottom of the end of the optical fiber leading-out end, the second wedge-shaped fixture block is mounted on the surface of the end of the clamping plate, the clamping plate is mounted on one side of the second wedge-shaped fixture block, and the second wedge-shaped fixture block is matched with the first wedge-shaped fixture block.

(III) advantageous effects

The utility model provides an array waveguide grating with a microbend waveguide, which has the following beneficial effects:

1. this array waveguide grating with little curved waveguide, setting through the guard box, can protect array waveguide grating when using, prevent that array waveguide grating from damaging, setting through sealing mechanism, when the optic fibre access end installation optic fibre of array waveguide grating, can carry out the fixed clamp tight and seal to optic fibre access end, prevent that outside dust from getting into the inside of guard box, and sealing mechanism can all carry out good clamp to the optic fibre access end of different diameters, sealed effectual purpose has been reached.

2. This array waveguide grating with microbend waveguide, through the setting of guide block and guide rail, slide in the inside of guide rail through the guide block when using, make the connector level be connected with the fiber end that the optic fibre derivation end was poured, make the fiber end aim at hookup location easily, prevent that the fiber end is impaired easily, through latch mechanism's setting, make first wedge fixture block and second wedge fixture block joint, prevent that optic fibre derivation end and connector from breaking away from, the connection ability has been reached, the purpose that prevents optic fibre and drop.

Drawings

FIG. 1 is an internal view of the protective case of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of portion B of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic structural diagram of a connection between an optical fiber leading-out end and a connector according to the present invention.

In the figure: 1. a protective box; 2. a cover plate; 3. a set screw; 4. a fixed mount; 5. an arrayed waveguide grating; 6. an optical fiber access end; 7. an optical fiber lead-out end; 8. a fixing plate; 9. a spring; 10. an arc-shaped sealing sleeve; 11. slightly bending the waveguide; 12. a connector; 13. a guide block; 14. a guide rail; 15. a groove; 16. a first wedge-shaped fixture block; 17. a second wedge-shaped fixture block; 18. clamping a plate; 19. pressing the sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: an arrayed waveguide grating with a micro-curved waveguide comprises a protective box 1, an arrayed waveguide grating 5 and a micro-curved waveguide tube 11, wherein a cover plate 2 is installed at the top of the protective box 1, the protective box 1 and the cover plate 2 are fixedly connected through fixing screws 3, the fixing screws 3 are arranged at four corners of the cover plate 2, a fixing frame 4 is installed on the inner bottom wall of the protective box 1, the arrayed waveguide grating 5 is installed inside the fixing frame 4, an optical fiber access end 6 is arranged at one end of the arrayed waveguide grating 5, an optical fiber lead-out end 7 is arranged at the other end of the arrayed waveguide grating, the arrayed waveguide grating 5 and the micro-curved waveguide tube 11 are connected through a connector 12, an optical fiber access hole is formed in one side of the protective box 1, an installation hole matched with the connector 12 is formed in the other side of the protective box 1, the connector 12 is inserted into the installation hole, a sealing gasket is arranged on the inner wall of the installation hole, the outer surface of the connector 12 is abutted to the inner wall of the sealing gasket, the inner side wall of the protection box 1 is provided with a sealing mechanism, the sealing mechanism consists of a fixing plate 8, a spring 9 and arc-shaped sealing sleeves 10, the end head of an optical fiber access end 6 is arranged in an optical fiber access hole, the end head of the optical fiber access end 6 is clamped in the sealing mechanism, the fixing plate 8 is fixedly connected with the inner wall of the protection box 1, one end of the spring 9 is fixedly connected with the bottom of the fixing plate 8, the other end of the spring 9 is fixedly connected with the top of the arc-shaped sealing sleeves 10, the sealing mechanisms are arranged in two groups and are vertically and symmetrically distributed relative to the optical fiber access hole, the optical fiber access end 6 is clamped between the arc-shaped sealing sleeves 10, the sealing mechanism is arranged on one side of the optical fiber access hole, a guide mechanism and a clamping mechanism are arranged between an optical fiber leading-out end 7 and a connector 12, the guide mechanism consists of a guide block 13 and a guide rail 14, the guide block 13 is arranged at the end part of the connector 12, and the number of the guide blocks 13 is two, and the symmetric distribution, guide rail 14 is installed on the outer wall of optic fibre derivation end 7, guide block 13 and guide rail 14 sliding connection, latch mechanism is by recess 15, first wedge fixture block 16, second wedge fixture block 17, cardboard 18 and pressing piece 19 are constituteed, two recesses 15 of longitudinal symmetric distribution are seted up on the end surface of connector 12, first wedge fixture block 16 is installed at the interior roof of recess 15, top and bottom at optic fibre derivation end 7 end are installed to cardboard 18, the surface mounting at 18 ends of cardboard has second wedge fixture block 17, cardboard 18 is installed in one side of second wedge fixture block 17, second wedge fixture block 17 and 16 looks adaptations of first wedge fixture block.

When in use, firstly the arrayed waveguide grating is arranged on the fixed frame 4, then one end of the microbend waveguide 11 is arranged with the connector 12, then the end head of the connector 12 is inserted into the mounting hole, then the connector 12 is close to the optical fiber leading-out end 7 of the arrayed waveguide grating 5, then the guide block 13 is clamped into the guide rail 14 to push the connector 12, the connector 12 moves along the sliding direction of the guide block 13 on the guide rail 14, the optical fiber end head is inserted into the connector 12, the end head of the clamping plate 18 is inserted into the groove 15, the first wedge-shaped clamping block 16 is clamped with the second wedge-shaped clamping block 17 to prevent the optical fiber leading-out end 7 from falling off from the connector 12, then the optical fiber access end 6 of the arrayed waveguide grating 5 is inserted into the arc-shaped sealing sleeve 10, then the external optical fiber is connected with the optical fiber access end 6, and finally the cover plate 2 is fixed with the protective box 1 by the fixing screw 3, protecting the internal arrayed waveguide grating 5.

The working principle and the beneficial effects of the utility model are as follows: the array waveguide grating with the slightly-bent waveguide can protect the array waveguide grating 5 and prevent the array waveguide grating 5 from being damaged when in use by arranging the protective box 1, can fixedly clamp and seal the optical fiber access end 6 when the optical fiber access end 6 of the array waveguide grating 5 is provided with an optical fiber by arranging the sealing mechanism, prevents external dust from entering the protective box 1, can well clamp the optical fiber access ends 6 with different diameters by arranging the sealing mechanism, achieves the aim of good sealing effect, slides in the guide rail 14 by arranging the guide block 13 and the guide rail 14 when in use by arranging the guide block 13, enables the connector 12 to be horizontally connected with the optical fiber end poured out from the optical fiber output end 7, easily enables the optical fiber end to be aligned with a connecting position, prevents the optical fiber end from being easily damaged, and is arranged by the clamping mechanism, the first wedge-shaped fixture block 16 is clamped with the second wedge-shaped fixture block 17, so that the optical fiber leading-out end 7 is prevented from being separated from the connector 12, and the purposes of improving the connection capacity and preventing the optical fiber from falling off are achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an array waveguide grating with little curved waveguide, includes guard box (1), array waveguide grating (5) and little curved waveguide pipe (11), its characterized in that: the protection box comprises a protection box (1), wherein a fixing frame (4) is installed on the inner bottom wall of the protection box (1), an array waveguide grating (5) is installed inside the fixing frame (4), an optical fiber access end (6) is arranged at one end of the array waveguide grating (5), an optical fiber leading-out end (7) is arranged at the other end of the array waveguide grating, the array waveguide grating (5) is connected with a micro-bending waveguide tube (11) through a connector (12), an optical fiber access hole is formed in one side of the protection box (1), a mounting hole matched with the connector (12) is formed in the other side of the protection box (1), a sealing mechanism is arranged on the inner side wall of the protection box (1), the sealing mechanism is composed of a fixing plate (8), a spring (9) and an arc-shaped sealing sleeve (10), the sealing mechanism is arranged on one side of the optical fiber access hole, and a guide mechanism and a clamping mechanism are arranged between the optical fiber leading-out end (7) and the connector (12), the guide mechanism consists of a guide block (13) and a guide rail (14), and the clamping mechanism consists of a groove (15), a first wedge-shaped fixture block (16), a second wedge-shaped fixture block (17), a clamping plate (18) and a pressing sheet (19).

2. The arrayed waveguide grating of claim 1, wherein: the protective box is characterized in that the top of the protective box (1) is provided with a cover plate (2), the protective box (1) is fixedly connected with the cover plate (2) through fixing screws (3), and the fixing screws (3) are arranged at four corners of the cover plate (2).

3. The arrayed waveguide grating of claim 1, wherein: the end setting of optic fibre access end (6) is in the inside of optic fibre access-in hole, the end joint of optic fibre access end (6) is in sealing mechanism's inside, the inner wall fixed connection of fixed plate (8) and protective housing (1), the one end of spring (9) and the bottom fixed connection of fixed plate (8), the other end of spring (9) and the top fixed connection of arc seal cover (10), sealing mechanism is provided with two sets ofly, and about optic fibre access hole longitudinal symmetry distribution, optic fibre access end (6) joint is between arc seal cover (10).

4. The arrayed waveguide grating of claim 1, wherein: the connector (12) is inserted in the mounting hole, a sealing gasket is arranged on the inner wall of the mounting hole, and the outer surface of the connector (12) is abutted to the inner wall of the sealing gasket.

5. The arrayed waveguide grating of claim 1, wherein: the end part of connector (12) is installed in guide block (13), the quantity of guide block (13) is provided with two, and the symmetric distribution, install on the outer wall of optic fibre derivation end (7) guide rail (14), guide block (13) and guide rail (14) sliding connection.

6. The arrayed waveguide grating of claim 1, wherein: two grooves (15) which are symmetrically distributed up and down are formed in the surface of the end of the connector (12), the first wedge-shaped fixture block (16) is installed on the inner top wall of the groove (15), the clamping plate (18) is installed at the top and the bottom of the end of the optical fiber leading-out end (7), the surface of the end of the clamping plate (18) is provided with a second wedge-shaped fixture block (17), the clamping plate (18) is installed on one side of the second wedge-shaped fixture block (17), and the second wedge-shaped fixture block (17) is matched with the first wedge-shaped fixture block (16).