CN219349186U - Lithium niobate thin film chip coupling fixing device - Google Patents
Lithium niobate thin film chip coupling fixing device Download PDFInfo
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- CN219349186U CN219349186U CN202223566247.9U CN202223566247U CN219349186U CN 219349186 U CN219349186 U CN 219349186U CN 202223566247 U CN202223566247 U CN 202223566247U CN 219349186 U CN219349186 U CN 219349186U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a lithium niobate thin film chip coupling fixing device in the technical field of optical waveguide devices, which comprises a fixing base, clamping plates, a fixed shaft part and conical lens optical fibers, wherein the clamping plates are symmetrically and fixedly arranged at two sides of the top end of the fixing base, the fixed shaft part is arranged in the clamping plates at the same side, one end of the fixed shaft part is penetrated and provided with the conical lens optical fibers.
Description
Technical Field
The utility model relates to the technical field of optical waveguide devices, in particular to a coupling and fixing device for a lithium niobate thin film chip.
Background
The trend of the high speed of the optical communication system puts a high demand on a high-speed photoelectric device, wherein a key component is a high-speed photoelectric modulator, an external modulator adopting lithium niobate is still the best choice of a long-distance backbone network at present, mainly because lithium niobate is based on the excellent electro-optical modulation characteristic of the Pockels effect, especially the lithium niobate modulator shows an incomparable advantage in the aspect of generating Gao Bote-rate multilevel signals, because the traditional lithium niobate modulator is formed by a low-index contrast waveguide, the optical constraint is weaker, a driving electrode is required to be placed at a place far away from the optical waveguide so as to reduce absorption loss as much as possible, thereby leading to the increase of driving voltage, the traditional lithium niobate modulator is huge in volume, the modulation efficiency is low, the lithium niobate film can just overcome the problem of the traditional lithium niobate modulator, and is a novel material with great potential, in the Chinese patent No. 202022692371.4, a coupling fixing device and a coupling device assembly are specifically mentioned, the tapered lens optical fiber is fixed on a fixed shaft part, the coupling angle between the tapered lens and the optical fiber and the tapered lens in a chip is formed by the low-index contrast waveguide, the optical fiber is not aligned with the tapered lens and the waveguide, the position is fixed on the position of the waveguide is not limited by the waveguide, and the practical position is not limited by the waveguide, and the application range is greatly limited by the waveguide, and the application is realized.
However, when the coupling fixing device and the coupling device assembly are used, limiting protection cannot be performed on the fixed shaft portion during use, so that the condition of position deviation during use of the fixed shaft portion is easily caused, the efficiency and the effect of optical fiber coupling fixing are affected, and the existing use requirements are difficult to meet.
Disclosure of Invention
The utility model aims to provide a lithium niobate thin film chip coupling fixing device, which solves the problems that the situation that the position deviation is easy to occur when a fixed shaft part is used, the efficiency and the effect of optical fiber coupling fixing are affected, and the existing use requirement is difficult to meet because the limit protection cannot be carried out when the fixed shaft part is used in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the lithium niobate thin film chip coupling fixing device comprises a fixing base, clamping plates, a fixed shaft part and a conical lens optical fiber, wherein the clamping plates are symmetrically and fixedly arranged on two sides of the top end of the fixing base, the fixed shaft part is arranged in the clamping plates on the same side, one end of the fixed shaft part penetrates through the conical lens optical fiber, one end of the clamping plate is provided with an adjusting elastic limiting mechanism, and the adjusting elastic limiting mechanism comprises a sliding groove, a spring and a contact sliding block;
a chute is formed in one end of the clamping plate, springs are symmetrically and fixedly arranged on the inner wall of one end of the chute, and the other end of each spring is fixedly connected with one end of the corresponding sliding block;
an adjusting and mounting mechanism is mounted at the bottom end of the fixed base and comprises a fixed seat, a mounting rack and a first adjusting bolt;
the bottom symmetry fixed mounting of fixed base has the fixing base, the inboard symmetry of fixing base has been placed the mounting bracket, the one end inner wall rotation of fixing base is installed first adjusting bolt.
Preferably, the adjusting elastic limiting mechanism comprises an embedded plate, an adjusting screw and a limiting plate;
the other end of the clamping plate is embedded and installed at the position corresponding to the sliding groove, one end of the embedded plate is penetrated and installed with an adjusting screw, and one end of the adjusting screw is rotatably installed with a limiting plate.
Preferably, bolts are symmetrically embedded and installed at one end of the embedded plate, and the adjusting screw is connected with the embedded plate through threads.
Preferably, the adjusting and mounting mechanism further comprises a second adjusting screw, a contact head and a rotary handle;
the inner wall of the other end of the fixing seat is rotatably provided with a second adjusting screw, one ends of the first adjusting screw and the second adjusting screw are connected with contacts, and the other ends of the first adjusting screw and the second adjusting screw penetrate through the fixing seat to be connected with a rotating handle.
Preferably, the first adjusting bolt and the second adjusting screw are connected with the mounting frame through threads, and the two contact heads are fixed through bolts.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the adjustment elasticity stop gear that sets up, rotatable adjustment screw rod drives the limiting plate and removes along the spout to use the limiting plate to drive the fixed shaft portion and remove, can carry out elastic contact to the fixed shaft portion, be convenient for place the back to the fixed shaft portion and carry out elasticity spacing, increased the spacing protection performance when this lithium niobate film chip coupling fixing device uses.
2. Through the regulation installation mechanism that sets up, can carry out the adjustment placed in middle to the position of mounting bracket, also can rotate the revolve of first adjusting bolt and second adjusting screw one end respectively, carry out the one-to-one to the position of mounting bracket, the adjustment installation when being convenient for this lithium niobate thin film chip coupling fixing device uses has increased the installation adjustability when this lithium niobate thin film chip coupling fixing device uses.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an exploded construction of the present utility model;
FIG. 3 is a schematic view of the structure of the adjusting elastic limiting mechanism of the present utility model;
FIG. 4 is a schematic view of the structure of the adjustment mounting mechanism of the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a fixed base; 2. a clamping plate; 3. a fixed shaft part; 4. a tapered-lens optical fiber;
5. adjusting an elastic limiting mechanism; 501. a chute; 502. a spring; 503. a contact slider; 504. an embedded plate; 505. adjusting a screw; 506. a limiting plate;
6. adjusting the mounting mechanism; 601. a fixing seat; 602. a mounting frame; 603. a first adjusting bolt; 604. a second adjusting screw; 605. a contact; 606. a rotary handle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a technical scheme of a lithium niobate thin film chip coupling fixing device, which comprises the following steps: the lithium niobate thin film chip coupling fixing device comprises a fixing base 1, clamping plates 2, fixed shaft parts 3 and conical lens optical fibers 4, wherein the clamping plates 2 are symmetrically and fixedly arranged on two sides of the top end of the fixing base 1, the fixed shaft parts 3 are arranged in the clamping plates 2 on the same side, one end of each fixed shaft part 3 is penetrated and provided with the conical lens optical fibers 4, one end of each clamping plate 2 is provided with an adjusting elastic limiting mechanism 5, and each adjusting elastic limiting mechanism 5 comprises a sliding groove 501, a spring 502 and a contact sliding block 503;
a chute 501 is formed at one end of the clamping plate 2, a lug is fixedly arranged at the position, corresponding to the chute 501, of the outer side of the fixed shaft part 3, so that the fixed shaft part 3 and the chute 501 are conveniently connected in a sliding manner by the lug, springs 502 are symmetrically and fixedly arranged on the inner wall of one end of the chute 501, and the other end of the springs 502 is fixedly connected with one end of the contact slide block 503;
the adjusting elastic limit mechanism 5 comprises an embedded plate 504, an adjusting screw 505 and a limit plate 506;
the other end of the clamping plate 2 is embedded and installed with an embedded plate 504 at the position corresponding to the chute 501, one end of the embedded plate 504 is penetrated and installed with an adjusting screw 505, one end of the adjusting screw 505 is rotatably installed with a limiting plate 506, one end of the embedded plate 504 is symmetrically embedded and installed with bolts, installation and disassembly between the embedded plate 504 and the clamping plate 2 are facilitated, the adjusting screw 505 is connected with the embedded plate 504 through threads, and the embedded plate 504 is driven to move when the adjusting screw 505 rotates.
When the lithium niobate thin film chip coupling fixing device is used, the lithium niobate thin film chip is fixed in a central groove through ultraviolet glue under the guidance of a positioning mark, an input end conical lens optical fiber 4 and an output end conical lens optical fiber 4 are respectively inserted into through holes formed in two fixed shaft parts 3, so that conical lens parts of the conical lens optical fibers 4 are respectively exposed out of the through holes, after the positions are properly adjusted, the input end conical lens optical fiber 4 and the output end conical lens optical fiber 4 are respectively adhered in the through holes where the input end conical lens optical fiber 4 and the output end conical lens optical fiber are respectively positioned through ultraviolet glue, an output power value is monitored through an optical power meter, when the power value is maximum, ultraviolet glue is filled in a gap between the fixed shaft parts 3 fixed with the input end conical lens optical fiber 4 and a substrate groove where the output end conical lens optical fiber 4 is positioned, ultraviolet glue is filled in the gap between the fixed shaft parts 3 fixed with the output end conical lens optical fiber 4 and the substrate groove where the output end conical lens optical fiber is positioned, after the coupling fixing is completed, a light source and the optical power meter are detached, and the fixedly connected whole is irradiated under an ultraviolet lamp for three minutes, so that the ultraviolet glue is further enabled to be enabled to release the temperature of the whole structure to be further reliable;
after the fixed shaft part 3 is arranged between the clamping plates 2, the embedded plate 504 and the clamping plates 2 can be fixed by using bolts, then the adjusting screw 505 is rotated, the limiting plate 506 is driven to move along the sliding groove 501 by combining the threaded connection of the adjusting screw 505 and the embedded plate 504, so that the fixed shaft part 3 is driven to move by using the limiting plate 506, the protruding block outside the fixed shaft part 3 is contacted with the contact sliding block 503, the spring 502 is contracted, the fixed shaft part 3 can be elastically contacted by using the contact sliding block 503 and the spring 502, the fixed shaft part 3 can be elastically limited after being placed, and the limiting protection performance of the lithium niobate thin film chip coupling fixing device in use is improved.
As shown in fig. 4, the bottom end of the fixed base 1 is provided with an adjusting and mounting mechanism 6, and the adjusting and mounting mechanism 6 comprises a fixed seat 601, a mounting rack 602 and a first adjusting bolt 603;
the bottom symmetry fixed mounting of fixed base 1 has fixing base 601, and mounting bracket 602 has been placed to the inboard symmetry of fixing base 601, and first adjusting bolt 603 is installed in the rotation of the one end inner wall of fixing base 601.
The adjusting and mounting mechanism 6 further comprises a second adjusting screw 604, a contact head 605 and a knob 606;
the second adjusting screw 604 is installed in the other end inner wall rotation of fixing base 601, the one end of first adjusting screw 603 and second adjusting screw 604 all is connected with contact 605, the other end of first adjusting screw 603 and second adjusting screw 604 passes fixing base 601 and is connected with soon 606, pass through threaded connection between first adjusting screw 603 and the second adjusting screw 604 all and the mounting bracket 602, drive mounting bracket 602 respectively and produce the removal when being convenient for first adjusting screw 603 and second adjusting screw 604 rotate, fix through the bolt between two contact 605, the installation and the dismantlement between two contact 605 are convenient for.
When the lithium niobate thin film chip coupling fixing device is installed, the rotatable knob 606 drives the first adjusting bolt 603 and the second adjusting screw 604 to rotate, the first adjusting bolt 603 and the second adjusting screw 604 are combined with the threaded connection of the mounting frame 602, the two mounting frames 602 on two sides can be driven to move reversely simultaneously, the position of the mounting frame 602 can be adjusted centrally, the adjustment installation of the lithium niobate thin film chip coupling fixing device during use can be facilitated, the bolts on the outer side of the contact head 605 can be taken down, the first adjusting bolt 603 and the second adjusting screw 604 are separated, the knob 606 at one end of the first adjusting bolt 603 and the second adjusting screw 604 can be rotated respectively, the positions of the mounting frames 602 are adjusted one by one, and the installation adjustability of the lithium niobate thin film chip coupling fixing device during use is improved.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
1. The utility model provides a lithium niobate film chip coupling fixing device, includes unable adjustment base (1), grip block (2), dead axle portion (3) and conical lens optic fibre (4), there is grip block (2) on the top both sides symmetry fixed mounting of unable adjustment base (1), with one side dead axle portion (3) have been placed to the inside of grip block (2), conical lens optic fibre (4) are installed in the one end penetration of dead axle portion (3), its characterized in that: an adjusting elastic limiting mechanism (5) is arranged at one end of the clamping plate (2), and the adjusting elastic limiting mechanism (5) comprises a sliding groove (501), a spring (502) and a contact sliding block (503);
a sliding groove (501) is formed in one end of the clamping plate (2), springs (502) are symmetrically and fixedly arranged on the inner wall of one end of the sliding groove (501), and the other ends of the springs (502) are fixedly connected with one end of the contact sliding block (503);
an adjusting and mounting mechanism (6) is mounted at the bottom end of the fixed base (1), and the adjusting and mounting mechanism (6) comprises a fixed seat (601), a mounting rack (602) and a first adjusting bolt (603);
the bottom symmetry fixed mounting of fixed base (1) has fixing base (601), mounting bracket (602) have been placed to the inboard symmetry of fixing base (601), first adjusting bolt (603) are installed in the rotation of the one end inner wall of fixing base (601).
2. The lithium niobate thin film chip coupling fixture of claim 1, wherein: the adjusting elastic limiting mechanism (5) comprises an embedded plate (504), an adjusting screw (505) and a limiting plate (506);
the embedded plate (504) is embedded and installed at the other end of the clamping plate (2) corresponding to the position of the sliding groove (501), an adjusting screw (505) is installed at one end of the embedded plate (504) in a penetrating mode, and a limiting plate (506) is installed at one end of the adjusting screw (505) in a rotating mode.
3. The lithium niobate thin film chip coupling fixture of claim 2, wherein: bolts are symmetrically embedded and installed at one end of the embedded plate (504), and the adjusting screw rod (505) is connected with the embedded plate (504) through threads.
4. The lithium niobate thin film chip coupling fixture of claim 1, wherein: the adjusting and mounting mechanism (6) further comprises a second adjusting screw (604), a contact head (605) and a rotary handle (606);
the inner wall of the other end of the fixing seat (601) is rotatably provided with a second adjusting screw (604), one ends of the first adjusting screw (603) and the second adjusting screw (604) are connected with a contact head (605), and the other ends of the first adjusting screw (603) and the second adjusting screw (604) penetrate through the fixing seat (601) to be connected with a rotating handle (606).
5. The lithium niobate thin film chip coupling fixture of claim 4, wherein: the first adjusting bolt (603) and the second adjusting screw (604) are connected with the mounting frame (602) through threads, and the two contact heads (605) are fixed through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223566247.9U CN219349186U (en) | 2022-12-30 | 2022-12-30 | Lithium niobate thin film chip coupling fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223566247.9U CN219349186U (en) | 2022-12-30 | 2022-12-30 | Lithium niobate thin film chip coupling fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219349186U true CN219349186U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223566247.9U Active CN219349186U (en) | 2022-12-30 | 2022-12-30 | Lithium niobate thin film chip coupling fixing device |
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| Country | Link |
|---|---|
| CN (1) | CN219349186U (en) |
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- 2022-12-30 CN CN202223566247.9U patent/CN219349186U/en active Active
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