Lithium niobate electro-optical modulator with low driving voltage

Abstract

The utility model discloses a low-driving-voltage lithium niobate electro-optical modulator which comprises a modulator shell, optical fibers are installed at the two ends of the modulator shell, an electric signal interface is installed on one side of the modulator shell, and a supporting lug is fixedly arranged in the middle of the top end of the modulator shell. A driving stud is in threaded connection with the interior of a driving screw hole formed in one side of the supporting lug, one end of the driving stud is rotationally connected with a driving block, and a protective shell is fixedly arranged at one end of the driving block. A driving stud in threaded connection with a supporting lug is rotationally connected with a driving block on a protective shell, a two-way lead screw is rotationally connected into a driving box on the protective shell, a movable block in threaded connection with the two-way lead screw is connected with a clamping rod, and the clamping rod is connected with an arc-shaped rubber clamping block. Therefore, the low-driving-voltage lithium niobate electro-optical modulator has an electric signal interface protection function, an electric signal interface is prevented from being exposed, the modulator is protected while dust is prevented, and the service life of the modulator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, in particular to a low-driving-voltage lithium niobate electro-optic modulator. Background Art

[0002] Lithium niobate electro-optic modulator is made by utilizing the electro-optic effect of lithium niobate crystal and combining it with optoelectronic integration technology. It can convert electronic data into photon information and is the core component for realizing electro-optic conversion. The electro-optic effect means that when voltage is applied to the electro-optic crystal, the refractive index of the electro-optic crystal will change. Through the change of the light wave characteristics of the crystal, the phase, amplitude, intensity and polarization state of the optical signal can be modulated.

[0003] In view of this, the utility model patent with authorization announcement number CN219122531U discloses an anti-folding lithium niobate electro-optical modulator electrode, which includes a modulator housing, a first optical fiber, a second optical fiber, an electrical signal input interface and an electrical signal output interface. The first optical fiber is installed at one end of the modulator housing, the second optical fiber is installed at the other end of the modulator housing, and the electrical signal input interface is installed at the adjacent end of the modulator housing. The utility model has a scientific and reasonable structure. Through the anti-folding protection mechanism, the connection between the first optical fiber and the second optical fiber and the modulator housing can be protected, and the outer sides of the first optical fiber and the second optical fiber can be protected from breaking, thereby increasing the protection of the anti-folding lithium niobate electro-optical modulator electrode when in use. Through the adjustment and installation mechanism, the modulator housing can be adjusted and installed, thereby increasing the installation adjustability of the anti-folding lithium niobate electro-optical modulator electrode when in use, and also increasing the installation adjustability of the anti-folding lithium niobate electro-optical modulator electrode when in use.

[0004] However, the lithium niobate electro-optic modulator in the above patent still has some problems: the electrical signal interface of the current lithium niobate electro-optic modulator does not have a protection function when in use, which can easily lead to the electrical signal interface being exposed, affecting it from being touched during use, resulting in a reduction in its service life. Utility Model Content

[0005] In order to solve the above problems, the purpose of the present invention is to provide a low driving voltage lithium niobate electro-optic modulator to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model proposes a low driving voltage lithium niobate electro-optic modulator, comprising a modulator housing, both ends of the modulator housing are equipped with optical fibers, and one side of the modulator housing is equipped with an electrical signal interface;

[0007] A supporting ear is fixedly provided in the middle of the top of the modulator shell, a driving screw hole opened on one side of the supporting ear is threadedly connected with a driving stud, one end of the driving stud is rotatably connected with a driving block, one end of the driving block is fixedly provided with a protective shell, the inner wall of the protective shell is fixedly provided with a driving box, the inner wall of the driving box is rotatably connected with a bidirectional lead screw, both sides of the outer wall of the bidirectional lead screw are threadedly connected with movable blocks, the bottom end of each of the movable blocks is fixedly provided with a clamping rod, and one side of each of the clamping rods is fixedly provided with an arc-shaped rubber clamping block.

[0008] As a preferred technical solution of the utility model, a transmission shaft is fixedly provided at one end of the bidirectional screw, a handle is fixedly provided at one end of the transmission shaft, and the outer walls of the two movable blocks are respectively connected with both sides of the inner wall of the driving box.

[0009] As a preferred technical solution of the utility model, a turntable is fixedly provided at one end of the driving stud, and a movable opening corresponding to the electrical signal interface is opened and closed on one side of the protective shell.

[0010] As a preferred technical solution of the utility model, straight slide grooves are provided on both sides of the top of the modulator shell, and a straight slide bar is slidably connected in each of the straight slide grooves. The top ends of the two straight slide bars are respectively fixedly connected to the surface of the inner wall of the protective shell.

[0011] As a preferred technical solution of the utility model, connecting blocks are fixedly provided on both sides of the two ends of the modulator housing, and a rotating opening is opened at one end of each of the connecting blocks.

[0012] As a preferred technical solution of the utility model, a rotating block is rotatably connected in each rotating opening via a pin shaft, a fixed block is fixed at one end of each rotating block, and a fixing hole is opened at the top of each fixed block.

[0013] The low driving voltage lithium niobate electro-optic modulator proposed by the utility model can bring the following benefits:

[0014] Beneficial effects:

[0015] 1. The low-driving-voltage lithium niobate electro-optic modulator is rotatably connected to a driving block on a protective housing through a driving stud threadedly connected to a support ear, a bidirectional lead screw is rotatably connected inside a driving box on the protective housing, a movable block threadedly connected to the bidirectional lead screw is connected to a clamping rod, and a curved rubber clamping block is connected to the clamping rod, so that the low-driving-voltage lithium niobate electro-optic modulator has an electrical signal interface protection function, avoids the electrical signal interface from being exposed, protects it while preventing dust, and prolongs its service life.

[0016] 2. The low-driving-voltage lithium niobate electro-optic modulator has a connecting block connected to the modulator housing with a rotating opening, a rotating block is rotatably connected to the rotating opening via a pin, and the rotating block is connected to a fixed block. Personnel can adjust the angle of the fixed block according to the installation position, so as to facilitate the installation of the lithium niobate electro-optic modulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the modulator housing of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure of the connection block of the utility model.

[0022] In the figure: 1. modulator housing; 2. electrical signal interface; 3. connecting block; 4. supporting ear; 5. driving stud; 6. driving block; 7. protective housing; 8. straight slide groove; 9. movable opening; 10. transmission shaft; 11. driving box; 12. bidirectional screw; 13. movable block; 14. clamping rod; 15. arc-shaped rubber clamping block; 16. rotating opening; 17. rotating block; 18. fixed block. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0024] like Figure 1 to Figure 4 As shown, the embodiment of the utility model proposes a low driving voltage lithium niobate electro-optic modulator, comprising a modulator housing 1, optical fibers are installed at both ends of the modulator housing 1, and an electrical signal interface 2 is installed on one side of the modulator housing 1;

[0025] A supporting ear 4 is fixedly provided in the middle of the top of the modulator housing 1, and a driving stud 5 is threadedly connected to the inner thread of a driving screw hole opened on one side of the supporting ear 4, and one end of the driving stud 5 is rotatably connected to a driving block 6, and one end of the driving block 6 is fixedly provided with a protective shell 7, and the inner wall of the protective shell 7 is fixedly provided with a driving box 11, and the inner wall of the driving box 11 is rotatably connected to a two-way lead screw 12, and both sides of the outer wall of the two-way lead screw 12 are threadedly connected to movable blocks 13, and the bottom end of each movable block 13 is fixedly provided with a clamping rod 14, and one side of each clamping rod 14 is fixedly provided with an arc-shaped rubber clamping block 15, one end of the two-way lead screw 12 is fixedly provided with a transmission shaft 10, and one end of the transmission shaft 10 is fixedly provided with a handle, and the outer walls of the two movable blocks 13 are respectively connected with the two sides of the inner wall of the driving box 11 through the connection.

[0026] A turntable is fixedly provided at one end of the driving stud 5, and a movable opening 9 corresponding to the electrical signal interface 2 is opened and closed on one side of the protective shell 7. Straight slide grooves 8 are provided on both sides of the top of the modulator shell 1, and a straight slide bar is slidably connected in each straight slide groove 8. The tops of the two straight slide bars are respectively fixedly connected to the surface of the inner wall of the protective shell 7. Connecting blocks 3 are fixedly provided on both sides of both ends of the modulator shell 1, and a rotating opening 16 is provided at one end of each connecting block 3. A rotating block 17 is rotatably connected to each rotating opening 16 through a pin shaft, and a fixed block 18 is fixed at one end of each rotating block 17, and a fixing hole is provided at the top of each fixed block 18.

[0027] Working principle: When using the lithium niobate electro-optic modulator, when installing it, the personnel can rotate the fixing block 18, at this time, the rotating block 17 rotates in the rotating opening 16 opened in the connecting block 3, and then the fixing block 18 is rotated to a suitable position, and the personnel can fix it through the fixing hole opened in the fixing block 18;

[0028] When connecting the electrical signal interface 2 on the modulator housing 1 with the electrical signal connector, rotate the driving stud 5, and the driving stud 5 on the supporting ear 4 rotates to drive the driving block 6, thereby driving the protective housing 7 close to the modulator housing 1. At this time, the electrical signal interface 2 can be exposed. At this time, connect the electrical signal connector with the electrical signal interface 2, and then rotate the driving stud 5 to move the protective housing 7 away from the modulator housing 1. At this time, the connection between the electrical signal interface 2 and the electrical signal connector is in the protective housing 7. The personnel rotates the bidirectional screw 12 through the transmission shaft 10, and the bidirectional screw 12 in the driving box 11 drives the two movable blocks 13 to approach, thereby causing the clamping rod 14 to drive the arc-shaped rubber clamping block 15 to clamp the electrical signal interface 2 to ensure its fixation and thus protect it.

[0029] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A low-driving-voltage lithium niobate electro-optic modulator, comprising a modulator housing (1), optical fibers being mounted at both ends of the modulator housing (1), and an electrical signal interface (2) being mounted on one side of the modulator housing (1). Features: A support ear (4) is fixedly provided in the middle of the top of the modulator housing (1); a drive screw hole provided on one side of the support ear (4) is threadedly connected to a drive stud (5); one end of the drive stud (5) is rotatably connected to a drive block (6); one end of the drive block (6) is fixedly provided with a protective housing (7); a drive box (11) is fixedly provided on the inner wall of the protective housing (7); a bidirectional lead screw (12) is rotatably connected to the inner wall of the drive box (11); movable blocks (13) are threadedly connected to both sides of the outer wall of the bidirectional lead screw (12); a clamping rod (14) is fixedly provided at the bottom end of each movable block (13); and an arc-shaped rubber clamping block (15) is fixedly provided on one side of each clamping rod (14).

2. A low driving voltage lithium niobate electro-optic modulator according to claim 1, Features: A transmission shaft (10) is fixedly provided at one end of the bidirectional lead screw (12), a handle is fixedly provided at one end of the transmission shaft (10), and the outer walls of the two movable blocks (13) are respectively connected to the two sides of the inner wall of the driving box (11) through insertion.

3. The low driving voltage lithium niobate electro-optic modulator according to claim 1, Features: A rotating disk is fixedly provided at one end of the driving stud (5), and a movable opening (9) corresponding to the electrical signal interface (2) is opened and closed on one side of the protective housing (7).

4. The low driving voltage lithium niobate electro-optic modulator according to claim 1, Features: Straight slide grooves (8) are provided on both sides of the top of the modulator housing (1), and a straight slide bar is slidably connected in each of the straight slide grooves (8), and the top ends of the two straight slide bars are fixedly connected to the surface of the inner wall of the protective housing (7) respectively.

5. The low driving voltage lithium niobate electro-optic modulator according to claim 1, Features: Connecting blocks (3) are fixedly provided on both sides of both ends of the modulator housing (1), and a rotating opening (16) is provided at one end of each connecting block (3).

6. A low driving voltage lithium niobate electro-optic modulator according to claim 5, Features: A rotating block (17) is rotatably connected in each rotating opening (16) via a pin shaft, a fixed block (18) is fixedly provided at one end of each rotating block (17), and a fixing hole is provided at the top end of each fixed block (18).

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