阅读说明：本技术 一种量子功率探测模块 (Quantum power detection module ) 是由 陈星� 何巍 薛潇博 赵环 王暖让 张璐 于 2020-12-09 设计创作，主要内容包括：本发明公开一种量子功率探测模块,包括：碱原子气室,在所述碱原子气室外部设置外部套筒,其中,所述碱原子气室内部含有碱金属原子及一定量的缓冲气体,在所述碱原子气室上设置冷端,用于对整个碱原子气室进行控温；所述外部套筒采用中空的结构,根据所述碱原子气室的型状设置中空的尺寸,用于将所述碱原子气室嵌入所述中空套筒内部,所述外部套筒设置连接部件,用于将所述冷端用于温控的连线引出。本发明的优点是：结构简单,具有碱原子气室,在所述碱原子气室外部设置外部套筒,所述外部套筒用于将所述碱原子气室嵌入所述中空套筒内部,适用于微波功率的探测,提高了原子与外场的耦合效率。(The invention discloses a quantum power detection module, comprising: the device comprises an alkali atom gas chamber, wherein an external sleeve is arranged outside the alkali atom gas chamber, the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and is used for controlling the temperature of the whole alkali atom gas chamber; the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end. The invention has the advantages that: simple structure has alkali atom air chamber the outside external sleeve that sets up of alkali atom air chamber, external sleeve be used for with the embedding of alkali atom air chamber inside the cavity sleeve, be applicable to microwave power's detection, improved the coupling efficiency of atom and external field.)

1. A quantum power detection module, comprising: an alkali atom gas chamber outside which an outer sleeve is provided, wherein,

the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and used for controlling the temperature of the whole alkali atom gas chamber;

the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end.

2. The quantum power detection module of claim 1, wherein: the outer sleeve is arranged in a multi-surface box structure.

3. The quantum power detection module of claim 2, wherein: the outer sleeve has at least one upper panel above which is disposed a first region for microwave projection.

4. The quantum power detection module of claim 3, wherein: and coating the first area.

5. The quantum power detection module of claim 2, wherein: the outer sleeve has at least one left panel over which a second region for detecting light incidence is disposed.

6. The quantum power detection module of claim 2, wherein: the outer sleeve has at least one right panel over which is disposed a third region for coupling light incident.

7. The quantum power detection module of claim 1, wherein: the outer sleeve is made of polytetrafluoroethylene.

8. The quantum power detection module of claim 3, wherein: the second area is provided with a first light-transmitting opening used for fixing the detection optical fiber.

9. The quantum power detection module of claim 8, wherein: the first region is provided with a first light-transmitting opening for fixing a waveguide for transmitting a microwave field.

10. The quantum power detection module of claim 3, wherein: the third region is provided with a third light-transmitting opening for fixing the coupled optical fiber.

Technical Field

The invention belongs to the technical field of quantum detection based on atomic control, and particularly relates to a quantum power detection module.

Background

With the development of quantum technology, the quantization process of international standard units is accelerated, the 26 th international measurement in 2018 is that a new quantization standard is passed, kilograms, amperes, Kelvin and moles are redefined to basic constants, and basic units except candela realize quantization definition. Based on atom, ion or molecule control technology, the optical atomic frequency standard reaches 10^-19The order of magnitude is the highest precision in all basic units so far. Many other units also directly or indirectly trace the frequency through the quantum technology, and the indexes of high precision and high stability are achieved.

The quantum power detection technology based on the rydberg atoms traces the measurement of the microwave power to the frequency, can realize the microwave power measurement with wide frequency band, high precision and high sensitivity, and has small volume, small interference from the outside and wide application prospect. The alkali atom steam chamber is a medium for the interaction of the microwave field and atoms, is also the core for realizing microwave power measurement, and determines the performance of microwave power detection. The alkali atom steam chamber is connected with a detection laser, a pump laser, a feed-in microwave and an output optical signal for detection, so the design of the alkali atom steam chamber is very important, and the coupling efficiency with the laser and the microwave also determines the detection precision of the microwave power. The coupling efficiency of the atoms with the external field is low in the prior art, so that the application of the alkali atom steam chamber is limited.

Disclosure of Invention

The invention aims to provide a quantum power detection module, which solves the problems of high-efficiency coupling and signal output of an alkali atom gas chamber and an external field.

In view of the above, the present invention provides a quantum power detection module, comprising: an alkali atom gas chamber outside which an outer sleeve is provided, wherein,

the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and used for controlling the temperature of the whole alkali atom gas chamber;

the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end.

Further, the outer sleeve is configured as a multi-faceted box structure.

Further, the outer sleeve has at least one upper panel above which a first zone for microwave projection is provided.

Further, the first area is plated.

Further, the outer sleeve has at least one left panel over which a second region for detecting incidence of light is disposed.

Further, the outer sleeve has at least one right panel over which a third region for coupling light incidence is disposed.

Furthermore, the outer sleeve is made of polytetrafluoroethylene.

Further, the second region is provided with a first light-transmitting opening for fixing the probe optical fiber.

Further, the first region is provided with a first light-transmitting opening for fixing a waveguide for transmitting a microwave field.

Further, the third region is provided with a third light-transmitting opening for fixing the coupled optical fiber.

The invention achieves the following significant beneficial effects:

simple structure includes: the device comprises an alkali atom gas chamber, wherein an external sleeve is arranged outside the alkali atom gas chamber, the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and is used for controlling the temperature of the whole alkali atom gas chamber; the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end. The method is suitable for the detection of microwave power, and improves the coupling efficiency of atoms and an external field.

Drawings

FIG. 1 is a schematic structural diagram of a quantum power detection module according to the present invention;

FIG. 2 is a schematic view of the construction of the outer sleeve of the present invention;

fig. 3 is a schematic top view of the outer sleeve of fig. 2.

Detailed Description

The advantages and features of the present invention will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings and detailed description of specific embodiments of the invention. It is to be noted that the drawings are in a very simplified form and are not to scale, which is intended merely for convenience and clarity in describing embodiments of the invention.

It should be noted that, for clarity of description of the present invention, various embodiments are specifically described to further illustrate different implementations of the present invention, wherein the embodiments are illustrative and not exhaustive. In addition, for simplicity of description, the contents mentioned in the previous embodiments are often omitted in the following embodiments, and therefore, the contents not mentioned in the following embodiments may be referred to the previous embodiments accordingly.

While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood that the inventors do not intend to limit the invention to the particular embodiments described, but intend to protect all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the claims. The same meta-module part number may be used throughout the drawings to represent the same or similar parts.

Example 1

Referring to fig. 1 to 3, the present invention provides a quantum power detection module, including: an alkali atom gas chamber outside which an outer sleeve is provided, wherein,

the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and used for controlling the temperature of the whole alkali atom gas chamber;

the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end.

In one embodiment, the outer sleeve is provided in a multi-faceted box configuration.

In one embodiment, the outer sleeve has at least one upper panel above which is disposed a first region for microwave projection.

In one embodiment, the first region is coated.

In one embodiment, the outer sleeve has at least one left panel over which is disposed a second region for detecting light incidence.

In one embodiment, the outer sleeve has at least one right panel over which is disposed a third region for coupling light incident.

In one embodiment, the outer sleeve is made of polytetrafluoroethylene.

In one embodiment, the second region is provided with a first light-transmitting opening for fixing the probe optical fiber.

In one embodiment, the first region is provided with a first light-transmissive opening for securing a waveguide for transmitting a microwave field.

In one embodiment, the third region is provided with a third light-transmitting opening for fixing the coupled optical fiber.

As a specific embodiment, the invention is composed of an atomic gas chamber 2 and an external sleeve 1, wherein the upper surface 4 of the atomic gas chamber is coated with a film to enhance microwave transmission, weaken oscillation generated by microwave in the gas chamber and improve coupling efficiency, meanwhile, the atomic gas chamber is provided with a cold end 3, and in order to achieve stable interaction between an external field and atoms, the temperature of the whole atomic gas chamber is controlled by adopting a cold end temperature control mode, so that the temperature of the atomic gas chamber is kept constant. The atomic gas cell 2 contains therein alkali metal atoms and a predetermined amount of buffer gas. The outer sleeve 1 is made of polytetrafluoroethylene, and can isolate external heat, so that the temperature of the atomic gas chamber is constant, as shown in fig. 2. The outer sleeve 1 is of a hollow structure, the atom air chamber is embedded into the sleeve according to the hollow size of the atom air chamber, and meanwhile a connecting line for controlling the temperature of the cold end of the atom air chamber can be connected with the temperature control circuit through the light transmitting opening 5 of the sleeve.

Example 2

The present embodiment provides a quantum power detection module, including: an alkali atom gas chamber outside which an outer sleeve is provided, wherein,

the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and used for controlling the temperature of the whole alkali atom gas chamber;

the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end.

In one embodiment, the outer sleeve is provided as a four-sided box structure.

In one embodiment, the outer sleeve has an upper panel above which is disposed a first region for microwave projection.

In one embodiment, the first region is coated.

In one embodiment, the outer sleeve has a left panel over which is disposed a second region for detecting light incidence.

In one embodiment, the outer sleeve has a right panel over which is disposed a third region for coupling light incident.

In one embodiment, the outer sleeve is made of polytetrafluoroethylene.

In one embodiment, the second region is provided with a first light-transmitting opening for fixing the probe optical fiber.

In one embodiment, the first region is provided with a first light-transmissive opening for securing a waveguide for transmitting a microwave field.

In one embodiment, the third region is provided with a third light-transmitting opening for fixing the coupled optical fiber.

As a specific embodiment, the present embodiment is composed of an atomic gas chamber 2 and an external sleeve 1, wherein an upper surface 4 of the atomic gas chamber is coated with a film to enhance microwave transmission, weaken oscillation of microwave generated in the gas chamber, and improve coupling efficiency, and meanwhile, the atomic gas chamber has a cold end 3, and in order to achieve stable interaction between an external field and atoms, the temperature of the whole atomic gas chamber is controlled by adopting a cold end temperature control manner, so as to keep the temperature of the atomic gas chamber constant. The atomic gas cell 2 contains therein alkali metal atoms and a predetermined amount of buffer gas. The outer sleeve 1 is made of polytetrafluoroethylene, and can isolate external heat, so that the temperature of the atomic gas chamber is constant, as shown in fig. 2. The outer sleeve 1 is of a hollow structure, the atom air chamber is embedded into the sleeve according to the hollow size of the atom air chamber, and meanwhile a connecting line for controlling the temperature of the cold end of the atom air chamber can be connected with the temperature control circuit through the light transmitting opening 5 of the sleeve. The outer sleeve has light transmissive openings, such as light transmissive openings 5, 6, in each panel. The upper surface of the outer sleeve is shown in fig. 3 with the light transmission openings 6 for transmitting light and 7 being nuts, there being four nuts in total near the light transmission openings, capable of securing the waveguide transmitting the microwave field to the outer sleeve. Simultaneously, similarly, left side and right side have same structure, can fix probing light and coupling light optic fibre on outside sleeve, produce stable probing light, coupling light and microwave and atom interact, have also reduced external interference simultaneously.

The invention achieves the following significant beneficial effects:

simple structure includes: the device comprises an alkali atom gas chamber, wherein an external sleeve is arranged outside the alkali atom gas chamber, the alkali atom gas chamber contains alkali metal atoms and a certain amount of buffer gas, and a cold end is arranged on the alkali atom gas chamber and is used for controlling the temperature of the whole alkali atom gas chamber; the outer sleeve is of a hollow structure, the hollow size is set according to the shape of the alkali atom air chamber, the alkali atom air chamber is embedded into the hollow sleeve, and the outer sleeve is provided with a connecting part for leading out a connecting line for temperature control of the cold end. The method is suitable for the detection of microwave power, and improves the coupling efficiency of atoms and an external field.

Any other suitable modifications can be made according to the technical scheme and the conception of the invention. All such alternatives, modifications and improvements as would be obvious to one skilled in the art are intended to be included within the scope of the invention as defined by the appended claims.