JP2806124B2 - Rubidium atomic oscillator - Google Patents
Rubidium atomic oscillatorInfo
- Publication number
- JP2806124B2 JP2806124B2 JP4026125A JP2612592A JP2806124B2 JP 2806124 B2 JP2806124 B2 JP 2806124B2 JP 4026125 A JP4026125 A JP 4026125A JP 2612592 A JP2612592 A JP 2612592A JP 2806124 B2 JP2806124 B2 JP 2806124B2
- Authority
- JP
- Japan
- Prior art keywords
- rubidium
- gas cell
- cavity
- atomic oscillator
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052701 rubidium Inorganic materials 0.000 title claims description 34
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 title claims description 34
- 230000003287 optical effect Effects 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 22
- 239000011521 glass Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は光ポンピング法を用いた
ガスセル形小型ルビジウム原子発振器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small gas cell type rubidium atomic oscillator using an optical pumping method.
【０００２】[0002]
【従来の技術】従来のルビジウム原子発振器において
は、原子共鳴を利用して発振を行なっているので、キャ
ビティが必要であり、このキャビティ中に挿入するルビ
ジウムガスセルの形状誤差等のため、そのキャビティは
共振周波数の調整を可能にする必要がある。2. Description of the Related Art A conventional rubidium atomic oscillator oscillates using atomic resonance, and therefore requires a cavity. The cavity is required due to a shape error of a rubidium gas cell inserted into the cavity. It is necessary to be able to adjust the resonance frequency.
【０００３】一方、キャビティを小型化しようとする場
合、キャビティ内にガスセルを高い容積率で充填する必
要がある。このため、周波数の調整は、ガスセルの中心
軸に対して直角に一個の凹部をセル壁面に設けるととも
に、該凹部にキャビティの壁面に出没可能に取付けられ
た突出部を出没させて周波数を調整する方式がとられて
いる。[0003] On the other hand, in order to reduce the size of the cavity, it is necessary to fill the gas cell with a high volume ratio in the cavity. For this reason, the frequency is adjusted by providing one recess on the cell wall surface at right angles to the central axis of the gas cell and projecting / retracting a protrusion mounted on the wall surface of the cavity in the recess to adjust the frequency. The system has been adopted.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
た従来のルビジウム原子発振器は、ルビジウムガスセル
円周部に凹部を設ける必要があるので、ガスセルの製造
が難しく、高価なものとなるという問題がある。However, the above-mentioned conventional rubidium atomic oscillator has a problem that the production of the gas cell is difficult and expensive because it is necessary to provide a concave portion in the circumference of the rubidium gas cell.
【０００５】また、構造的にガラスの肉厚を薄くするこ
とが困難であるため、ガスセルの光通過面におけるガラ
スによる光のロスが多く、したがって、信号強度が低下
するという問題がある。In addition, since it is structurally difficult to reduce the thickness of the glass, there is a large loss of light due to the glass on the light passage surface of the gas cell, and therefore, there is a problem that the signal intensity is reduced.
【０００６】本発明は上述した問題点にかんがみてなさ
れたもので、小型で高性能かつ低価格なルビジウム原子
発振器の提供を目的とする。The present invention has been made in view of the above-described problems, and has as its object to provide a small, high-performance, and low-cost rubidium atomic oscillator.
【０００７】上記目的を達成するための本発明のルビジ
ウム原子発振器は、ルビジウムランプ部，キャビティ部
よりなる光マイクロ波共鳴部を含むルビジウム原子発振
器において、二つの球を連通させた細径部を有する形状
のルビジウムガスセルと、円筒形のキャビティと、円筒
形のキャビティ壁面からルビジウムガスセルの細径部に
位置するとともにキャビティの半径方向１／３程度まで
貫通させて固定した第一突出部と、前記第一突出部とル
ビジウムガスセル中心軸に対して対称的に配設されルビ
ジウムガスセルの細径部に位置する第二突出部であっ
て、円筒形のキャビティ壁面に貫通させて出没可能に取
付けてなる第二突出部とを具備する構成としてある。In order to achieve the above object, a rubidium atomic oscillator according to the present invention is a rubidium atomic oscillator including an optical microwave resonance section comprising a rubidium lamp section and a cavity section, having a small diameter section in which two spheres are communicated. shape
Rubidium gas cell, cylindrical cavity and cylinder
From the cavity wall to the narrow part of the rubidium gas cell
Position and up to about 1/3 in the radial direction of the cavity
A first protruding portion that is fixed by being penetrated;
Ruby is symmetrically arranged with respect to the central axis of the vidium gas cell.
The second protrusion located in the small diameter part of the gas cell
Through the cylindrical cavity wall so that it can
And a second protrusion attached thereto .
【０００８】[0008]
【実施例】以下、本発明の一実施例について図面を参照
して説明する。図１は本発明の一実施例に係るルビジウ
ム原子発振器を示す図であり、図１（ａ）は正面図、図
１（ｂ）は図１（ａ）のＡ−Ａ線断面図である。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a rubidium atomic oscillator according to one embodiment of the present invention, FIG. 1 (a) is a front view, and FIG. 1 (b) is a cross-sectional view taken along line AA of FIG.
【０００９】図１に示すように、円筒形をしたキャビテ
ィ１内には二つの球を連通させ、該連通箇所が細径の形
状（まゆ形）をしたルビジウムガスセル２が充填されて
おり、キャビティ１とルビジウムガスセル２の間に受光
素子３が配設してある。As shown in FIG. 1, two spheres are communicated in a cylindrical cavity 1, and a rubidium gas cell 2 in which the communicating portion has a small diameter (brow) is filled. The light receiving element 3 is provided between the cavity 1 and the rubidium gas cell 2.
【００１０】チューニング用第一突出棒４はキャビティ
１の壁面を貫通するようにして固定してあり、ルビジウ
ムガスセル２の細径部に位置することによってルビジウ
ムガスセル２を避けて、キャビティの半径方向１／３程
度まで位置するよう固定してある。また、チューニング
用第二突出棒５もルビジウムガスセル２の細径部に位置
するとともに、キャビティ３の壁面の貫通孔に出没（挿
脱）可能に取付けてあり、挿入深さを調節することによ
って、マイクロ波導入部６から入力されたマイクロ波に
共振するように、キャビティ１の共振周波数を容易に調
整することができるようにしてある。[0010] The first projecting rod 4 for tuning Yes fixed so as to penetrate the wall of the cavity 1, Rubijiu by positioning the small diameter portion of rubidium gas cell 2
Avoid Mugasuseru 2, it is fixed so as to be located to approximately radial 1/3 of the cavity. The second protruding rod 5 for tuning is also located at the small diameter portion of the rubidium gas cell 2.
At the same time, it is mounted in a through hole in the wall surface of the cavity 3 so as to be able to protrude and retract (insert and remove). Can be easily adjusted.
【００１１】次に、上記構成からなる本発明のルビジウ
ム原子発振器の作用について説明する。本発明のルビジ
ウム発振器は、チューニング用第二突出棒５を挿脱させ
て共振周波数を調整することによって、ルビジウムガス
セル２に十分な強度のマイクロ波を供給できる。したが
って、光入射孔７から入射した光は、ルビジウムガスセ
ル２に吸収された後、受光素子３に至り、原子発振器と
して動作するために必要な信号に変換される。Next, the operation of the rubidium atomic oscillator of the present invention having the above configuration will be described. The rubidium oscillator of the present invention can supply a microwave having a sufficient intensity to the rubidium gas cell 2 by adjusting the resonance frequency by inserting and removing the second projecting rod 5 for tuning. Therefore, the light incident from the light entrance hole 7 is absorbed by the rubidium gas cell 2, reaches the light receiving element 3, and is converted into a signal necessary for operating as an atomic oscillator.
【００１２】上記本発明のルビジウム原子発振器におけ
るルビジウムガスセル２は、二つの球を連通させた形状
としてあるので、ガスセルの製造が容易で、安価に製造
できる。Since the rubidium gas cell 2 in the above-mentioned rubidium atomic oscillator of the present invention has a shape in which two spheres are communicated with each other, the gas cell can be manufactured easily and inexpensively.
【００１３】また、本発明におけるルビジウムガスセル
２は、構造的にガラスの肉厚を薄くすることが容易であ
り、ガスセルの光通過面におけるガラスにより光のロス
が少なく、信号強度が低下しない。さらに、突出棒が光
入射孔に突出することがなく信号強度の低下を防ぐこと
ができる。The rubidium gas cell 2 according to the present invention is structurally easy to reduce the thickness of the glass, and the glass on the light passage surface of the gas cell causes a small loss of light and does not lower the signal intensity. Further, it is possible to prevent the signal strength from being lowered without the projecting rod projecting into the light incident hole.
【００１４】また、本発明のルビジウム原子発振器は信
号強度が低下せず、従来の同じ大きさのルビジウム原子
発振器に比べ、信号強度が大であるため、発振器を小型
化することができる。Further, the signal intensity of the rubidium atomic oscillator of the present invention does not decrease, and the signal intensity is higher than that of a conventional rubidium atomic oscillator of the same size, so that the oscillator can be downsized.
【００１５】なお、本発明は上記実施例に限定されず、
本発明の要旨の範囲内で適宜変形して実施することが可
能である。The present invention is not limited to the above embodiment,
The present invention can be appropriately modified and implemented within the scope of the present invention.
【００１６】[0016]
【発明の効果】以上説明したように本発明によれば、小
型で高性能かつ低価格なルビジウム原子発振器を提供で
きる。As described above, according to the present invention, a small, high-performance, and low-cost rubidium atomic oscillator can be provided.
【図１】本発明の一実施例に係るルビジウム原子発振器
を示す図であり、図１（ａ）は正面図、図１（ｂ）は図
１（ａ）のＡ−Ａ線断面図である。FIG. 1 is a diagram showing a rubidium atomic oscillator according to one embodiment of the present invention, FIG. 1 (a) is a front view, and FIG. 1 (b) is a cross-sectional view taken along line AA of FIG. .
１…キャビティ ２…ルビジウムガスセル ３…光受光素子 ４…チューニング用第一突出棒 ５…チューニング用第二突出棒 ６…マイクロ波導入部 ７…光入射孔 DESCRIPTION OF SYMBOLS 1 ... Cavity 2 ... Rubidium gas cell 3 ... Light receiving element 4 ... First protruding rod for tuning 5 ... Second protruding rod for tuning 6 ... Microwave introduction part 7 ... Light entrance hole
Claims (1)
なる光マイクロ波共鳴部を含むルビジウム原子発振器に
おいて、二つの球 を連通させた細径部を有する形状のルビジウム
ガスセルと、 円筒形のキャビティと、 円筒形のキャビティ壁面からルビジウムガスセルの細径
部に位置するとともにキャビティの半径方向１／３程度
まで貫通させて固定した第一突出部と、 前記第一突出部とルビジウムガスセル中心軸に対して対
称的に配設されルビジウムガスセルの細径部に位置する
第二突出部であって、円筒形のキャビティ壁面に貫通さ
せて出没可能に取付けてなる第二突出部とを具備するこ
とを特徴としたルビジウム原子発振器。1. A rubidium atomic oscillator including an optical microwave resonance part comprising a rubidium lamp part and a cavity part, a rubidium gas cell having a small diameter part connecting two spheres , a cylindrical cavity, and a cylinder. A first protruding portion which is located at a narrow diameter portion of the rubidium gas cell from the cavity wall surface of the shape and is fixed by being penetrated to about one-third in the radial direction of the cavity; A second protruding portion disposed at a small diameter portion of the rubidium gas cell, wherein the second protruding portion is provided so as to penetrate through a wall surface of the cylindrical cavity so as to be retractable. Atomic oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4026125A JP2806124B2 (en) | 1992-01-17 | 1992-01-17 | Rubidium atomic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4026125A JP2806124B2 (en) | 1992-01-17 | 1992-01-17 | Rubidium atomic oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05190934A JPH05190934A (en) | 1993-07-30 |
| JP2806124B2 true JP2806124B2 (en) | 1998-09-30 |
Family
ID=12184848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4026125A Expired - Lifetime JP2806124B2 (en) | 1992-01-17 | 1992-01-17 | Rubidium atomic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2806124B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH557602A (en) * | 1971-12-14 | 1974-12-31 | Jechart Ernst | ATOMIC FREQUENCY NORMAL. |
| JP2679099B2 (en) * | 1988-04-07 | 1997-11-19 | 日本電気株式会社 | Rubidium atomic oscillator |
| JPH02102585A (en) * | 1988-10-12 | 1990-04-16 | Nec Corp | Rubidium atomic oscillator |
-
1992
- 1992-01-17 JP JP4026125A patent/JP2806124B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05190934A (en) | 1993-07-30 |
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