CN217521395U - Bearing device for optical fiber interferometer and optical fiber interferometer module - Google Patents
Bearing device for optical fiber interferometer and optical fiber interferometer module Download PDFInfo
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- CN217521395U CN217521395U CN202222085362.8U CN202222085362U CN217521395U CN 217521395 U CN217521395 U CN 217521395U CN 202222085362 U CN202222085362 U CN 202222085362U CN 217521395 U CN217521395 U CN 217521395U
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- optical fiber
- substrate
- fiber interferometer
- interferometer
- fiber optic
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Abstract
The utility model discloses a bearing device and optical fiber interferometer module for optical fiber interferometer, which relates to the field of optical devices, and comprises a substrate, a plurality of beam clamps, one or a plurality of through holes and an opening, wherein the substrate is used for placing the optical fiber interferometer; the plurality of beam clamps are fixedly arranged on the upper surface of the substrate, and are used for accommodating and fixing optical fibers where two arms of the unequal-arm optical fiber interferometer are located; one or more through holes are arranged inside the substrate, wherein the one or more through holes are used for guiding part of tail fibers of the optical fiber interferometer from the upper surface of the substrate to the lower surface of the substrate; part of tail fibers are fixedly arranged on the lower surface of the substrate; the opening is arranged on the side wall of the substrate and used for leading out the tail fiber of the other part of the unequal-arm optical fiber interferometer from the inner cavity of the substrate, so that the constancy of the length difference between the long arm and the short arm of the optical fiber interferometer is improved, and the performance stability of the optical fiber interferometer is ensured.
Description
Technical Field
The utility model relates to an optical device field, concretely relates to a bear device and optical fiber interferometer module for optical fiber interferometer.
Background
Generally, the rate of coding of a quantum communication system depends on the stability of the difference between the long and short arms of the fiber optic interferometer. However, the long arm and the short arm of the optical fiber interferometer are easily disturbed by external ambient environment factors (such as the temperature and vibration of the ambient environment), and the disturbing influence causes the long arm and the short arm of the optical fiber interferometer to change, and the change further causes the length difference between the long arm and the short arm of the optical fiber interferometer to change, which destroys the constancy of the length difference between the long arm and the short arm of the optical fiber interferometer, and further reduces the code rate of the quantum communication system. Accordingly, there is a need to provide a stable, reliable mounting and pre-fixing structure for fiber optic interferometers used in quantum communication systems. Because the optical fiber interferometer can be effectively insulated and packaged in a vibration-damping way only on the basis of stable and reliable installation and a pre-fixing structure, the disturbance influence of external surrounding environment factors on the optical fiber interferometer can be reduced as much as possible, and the performance stability of the optical fiber interferometer is ensured.
In the prior art, a disk box is mainly adopted to carry out heat insulation and vibration reduction packaging on the optical fiber interferometer. In the scheme, because the optical fibers of the two arms of the optical fiber interferometer are wound with the pigtails (the optical fibers corresponding to the two arms except the optical fiber interferometer are called the pigtails and include the input optical fiber and the output optical fiber of the optical fiber interferometer), when the ambient temperature changes, the length difference between the long arm and the short arm of the optical fiber interferometer changes, so that the stability of the performance of the optical fiber interferometer is unstable, and the rate of the quantum communication system is affected.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a bear device and fiber optic interferometer module for fiber optic interferometer for solve the length difference between the long arm and the short arm of the fiber optic interferometer that prior art exists and be invariable, lead to fiber optic interferometer performance instability's defect.
In order to achieve the above object, an embodiment of the present invention provides a carrying device and an optical fiber interferometer module for an optical fiber interferometer, which adopt the following technical solutions:
in a first aspect, an embodiment of the present invention provides a bearing device for an optical fiber interferometer, including:
the substrate is used for placing the optical fiber interferometer;
the plurality of beam clamps are fixedly arranged on the upper surface of the substrate, and are used for accommodating and fixing optical fibers where two arms of the optical fiber interferometer are located;
one or more through holes arranged inside the substrate, wherein the one or more through holes are used for guiding part of tail fibers of the optical fiber interferometer from the upper surface of the substrate to the lower surface of the substrate;
part of the tail fibers are fixedly arranged on the lower surface of the substrate;
and the opening is arranged on the side wall of the substrate and used for leading out the other part of tail fibers of the optical fiber interferometer from the inner cavity of the substrate.
As a preferred implementation manner of the present invention, the upper surface of the substrate is further provided with a beam seat for accommodating and fixing the beam splitter.
As a preferred implementation of the present invention, the substrate is further provided with a slot for accommodating and fixing the phase shifter.
As a preferred implementation of the present invention, one or more of the through holes are disposed at the edge of the substrate.
As a preferred implementation manner of the present invention, the substrate is made of aluminum.
As a preferred implementation of the present invention, the wire harness seat and the plurality of wire harness clips are made of plastic.
In a second aspect, an embodiment of the present invention provides an optical fiber interferometer module, which includes the first aspect, a carrying device for an optical fiber interferometer, wherein the carrying device is hermetically disposed inside the optical fiber interferometer module.
The embodiment of the utility model provides a bear device and optical fiber interferometer module for optical fiber interferometer has following beneficial effect:
through one or more through-holes that the base plate is inside to be set up, guide optical fiber interferometer's some tail optical fiber to the lower surface of base plate from the upper surface of base plate, keep apart the optic fibre that two arms of optical fiber interferometer are located and place different positions with the tail optical fiber, improved the constancy of the length difference between optical fiber interferometer's long arm and the short arm, further reduced the disturbance influence of outside surrounding environment factor to optical fiber interferometer, ensured the stability of optical fiber interferometer performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the lower surface will briefly introduce the drawings required to be used in the embodiments or the description of the prior art, and it is obvious that the drawings in the description of the lower surface are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a supporting device for an optical fiber interferometer according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a supporting device for an optical fiber interferometer after the optical fiber interferometer is placed according to an embodiment of the present invention.
Fig. 3 is a schematic view of a three-dimensional structure of a lower surface of a substrate of a carrying device for an optical fiber interferometer after a fiber pigtail of the optical fiber interferometer is placed.
Fig. 4 is a schematic perspective view of an optical fiber interferometer module according to an embodiment of the present invention.
Fig. 5 is an exploded schematic view of an optical fiber interferometer module in which an optical fiber interferometer is disposed according to an embodiment of the present invention.
Description of the labeling:
1-substrate, 2-bundle clamp, 3-through hole, 4-first part of tail fiber, 5-opening, 6-bundle seat, 7-clamping plate, 8-second part of tail fiber, 9-upper cover, 10-lower cover and 11-clamping groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the present invention provides a carrying device and an optical fiber interferometer module for an optical fiber interferometer, which are described in detail below:
example 1
As shown in fig. 1, the embodiment of the present invention provides a bearing device for an optical fiber interferometer, including:
the substrate 1 is used for placing optical fibers of the optical fiber interferometer, wherein the optical fibers comprise optical fibers where two arms of the optical fibers of the optical fiber interferometer are located and tail fibers except the optical fibers where the two arms of the optical fibers are located.
In an implementable manner, the upper surface of the substrate 1 is also provided with a beam socket 6 for receiving and holding a beam splitter.
In an implementation, the beam seat 6 is made of a plastic material having elasticity, so as to facilitate the insertion of the beam splitter into the beam seat 6.
In a realisable manner, the inside of the base plate 1 is also provided with a slot 11 for receiving and fixing a phase shifter.
In an implementation manner, the substrate 1 is made of aluminum, so that the substrate is light in weight and easy to process, and the stability of the fiber interferometer can be increased to a certain extent due to the large specific heat capacity of aluminum.
And the plurality of beam clamps 2 are fixedly arranged on the upper surface of the substrate 1, wherein the plurality of beam clamps 2 are used for accommodating and fixing optical fibers where two arms of the optical fiber interferometer are located.
In one implementation, the plurality of the cable clamps 2 are made of a resilient plastic material to facilitate embedding the optical fibers within the cable clamps.
One or more through holes 3 arranged inside the substrate 1, wherein the one or more through holes 3 are used for guiding a first part of tail fibers 4 of the optical fiber interferometer from the upper surface of the substrate 1 to the lower surface of the substrate 1.
In an implementable manner, one or more through holes 3 are provided at an edge location of the substrate, facilitating guiding of a first portion of pigtails 4 of the fiber optic interferometer from an upper surface of the substrate 1 to a lower surface of the substrate 1.
The first part of tail fibers 4 are fixedly arranged on the lower surface of the substrate 1.
In an implementation manner, the first part of the pigtails 4 are fixedly arranged on the lower surface of the substrate 1 through a clamping plate 7 arranged on the lower surface as shown in fig. 3, or the first part of the pigtails 4 can be fixedly arranged on the lower surface of the substrate 1 by using a winding tube made of soft plastic material.
And the opening 5 is arranged on the side wall of the substrate 1 and is used for leading out a second part of tail fibers 8 of the optical fiber interferometer from the inner cavity of the substrate 1.
Example 2
The embodiment of the present invention provides an optical fiber interferometer module 100, which comprises an upper cover 9, a lower cover 10 and a carrying device for an optical fiber interferometer in embodiment 1. Wherein, the bearing device is arranged in the optical fiber interferometer module in a sealing way.
Specifically, the carrying device for the optical fiber interferometer described in the upper cover 9 and the embodiment 1, and the lower cover 10 are sequentially and fixedly combined from top to bottom to form the optical fiber interferometer module 100 provided by the embodiment of the present invention, so as to isolate the optical fiber interferometer from the external surrounding environment. The optical fiber interferometer module 100 shown in fig. 5 can be subjected to thermal insulation and vibration reduction packaging, so that the influence of external ambient factors on the interference effect of the optical fiber interferometer is reduced.
In particular, by way of example and not limitation, the carrier for fiber optic interferometers shown in fig. 1 and 2 may be used for placing, such as, but not limited to, one of the following fiber optic interferometers: fiber Fabry-Perot interferometers (FPT), Mach Zehnder Interferometers (MZI), Michelson Interferometers (MI), and Sagnac Interferometers (SI).
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (7)
1. A carrier for a fiber optic interferometer, comprising:
the substrate is used for placing the optical fiber interferometer;
the plurality of beam clamps are fixedly arranged on the upper surface of the substrate, and are used for accommodating and fixing optical fibers where two arms of the optical fiber interferometer are located;
one or more through holes arranged inside the substrate, wherein the one or more through holes are used for guiding part of tail fibers of the optical fiber interferometer from the upper surface of the substrate to the lower surface of the substrate;
part of the tail fibers are fixedly arranged on the lower surface of the substrate;
and the opening is arranged on the side wall of the substrate and used for leading out the other part of tail fibers of the optical fiber interferometer from the inner cavity of the substrate.
2. The carrier for fiber optic interferometers of claim 1 wherein:
and the upper surface of the substrate is also provided with a beam seat for accommodating and fixing the beam splitter.
3. The carrier for fiber optic interferometers of claim 1 wherein:
and a clamping groove for accommodating and fixing the phase shifter is also arranged in the substrate.
4. The carrier for fiber optic interferometers of claim 1 wherein:
one or more through holes are arranged at the edge position of the substrate.
5. The carrier for fiber optic interferometers of claim 1 wherein:
the substrate is made of aluminum.
6. The carrier for a fiber optic interferometer of claim 1, wherein:
the wire harness seat and the plurality of wire harness clamps are made of plastics.
7. A fiber optic interferometer module, comprising the carrier for a fiber optic interferometer of any of claims 1-6, wherein the carrier is sealingly disposed inside the fiber optic interferometer module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222085362.8U CN217521395U (en) | 2022-08-09 | 2022-08-09 | Bearing device for optical fiber interferometer and optical fiber interferometer module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222085362.8U CN217521395U (en) | 2022-08-09 | 2022-08-09 | Bearing device for optical fiber interferometer and optical fiber interferometer module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217521395U true CN217521395U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222085362.8U Active CN217521395U (en) | 2022-08-09 | 2022-08-09 | Bearing device for optical fiber interferometer and optical fiber interferometer module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217521395U (en) |
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2022
- 2022-08-09 CN CN202222085362.8U patent/CN217521395U/en active Active
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