JP2874476B2 - Rubidium atomic oscillator - Google Patents
Rubidium atomic oscillatorInfo
- Publication number
- JP2874476B2 JP2874476B2 JP24701392A JP24701392A JP2874476B2 JP 2874476 B2 JP2874476 B2 JP 2874476B2 JP 24701392 A JP24701392 A JP 24701392A JP 24701392 A JP24701392 A JP 24701392A JP 2874476 B2 JP2874476 B2 JP 2874476B2
- Authority
- JP
- Japan
- Prior art keywords
- rubidium
- gas cell
- cavity
- microwave
- atomic oscillator
- 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 - Fee Related
Links
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はルビジウム原子発振器に
関し、特に光ポンピング法を用いた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 rubidium atomic oscillator, and more particularly to a 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、原子共鳴を利用するためにキャビティが必要であ
り、このキャビティ長は導入されるマイクロ波の波長と
キャビティの中に挿入されるルビジウムガスセルの形状
誤差等により決定されていた。キャビティを入力のマイ
クロ波に共振（チューニング）するには、ガスセルの中
心軸に対して直角に１個の凹部をセル壁面に設定して該
凹部にキャビティの壁面を貫通する突出部を出没可能に
突出させる方式が取られているのが一般的である。2. Description of the Related Art A conventional rubidium atomic oscillator requires a cavity in order to utilize atomic resonance. The cavity length depends on the wavelength of the microwave to be introduced and the shape error of the rubidium gas cell inserted into the cavity. And so on. In order to resonate (tune) the cavity with the input microwave, one recess is set at right angles to the center axis of the gas cell on the cell wall, and a projection that penetrates through the cavity wall can be protruded and retracted in the recess. In general, a method of projecting is used.
【０００３】[0003]
【発明が解決しようとする課題】上述した従来のルビジ
ウム原子発振器では、ルビジウムガスセル円周面に凹部
を設ける必要がある為、そのガスセル製造が困難になり
高価な物となる。又、構造的にガラスの肉厚が薄くなる
為に、キャビティ内に含まれる誘電体の量が少なくなり
キャビティを小型にする事が不可能となり、ルビジウム
原子発振器として高価になり、又小型化できないという
問題点があった。In the above-mentioned conventional rubidium atomic oscillator, since it is necessary to provide a concave portion on the circumferential surface of the rubidium gas cell, the production of the gas cell becomes difficult and expensive. In addition, since the thickness of the glass is reduced structurally, the amount of dielectric contained in the cavity is reduced, making it impossible to reduce the size of the cavity. As a result, it becomes expensive as a rubidium atomic oscillator and cannot be reduced in size. There was a problem.
【０００４】[0004]
【課題を解決するための手段】本発明のルビジウム原子
発振器は、ルビジウムランプ部からの光ビームと発振器
からのマイクロ波とを共振させる円筒形のキャビティに
おいて、前記光ビームを導入する光入射孔と、前記マイ
クロ波を入力する導入部と、前記光ビームと前記マイク
ロ波との共振ビームを受光素子に出力する球状又は半球
状のルビジウムガスセルと、前記光入射孔と前記ルビジ
ウムガスセルとの間に設けられた複数の誘電体板と、前
記ルビジウムガスセルを避けたキャビティ長の１／３程
度の箇所の前記誘電体板と前記ルビジウムガスセルとの
間に前記共振ビームの周波数を調節する突出棒を設ける
ことを特徴とする。According to the present invention, there is provided a rubidium atomic oscillator comprising a cylindrical cavity for resonating a light beam from a rubidium lamp and a microwave from the oscillator, and a light entrance hole for introducing the light beam. An introduction section for inputting the microwave, a spherical or hemispherical rubidium gas cell for outputting a resonance beam of the light beam and the microwave to a light receiving element, the light entrance hole and the rubidium.
A plurality of dielectric plates provided between the Umugasuseru, before
About 1/3 of the cavity length avoiding the rubidium gas cell
Degree of the dielectric plate and the rubidium gas cell
A protruding bar for adjusting the frequency of the resonance beam is provided therebetween.
It is characterized by the following .
【０００５】[0005]
【実施例】次に、本発明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の正面図（Ａ）及び側面図
（Ｂ）である。Next, the present invention will be described with reference to the drawings. FIG. 1 is a front view (A) and a side view (B) of an embodiment of the present invention.
【０００６】本実施例は、ルビジウムランプ部からの光
ビームと発振器からのマイクロ波とを共振させる円筒形
のキャビティ１は、光ビームを導入する光入射孔７と、
マイクロ波を入力する導入部６と、光ビームとマイクロ
波の共振ビームを受光素子２に出力する球状又は半球状
のルビジウムガスセル３と、光入射孔７とルビジウムガ
スセル３との間に設けられた複数の誘電体板５と、誘電
体板５とルビジウムガスセル３との間に共振ビームの周
波数を調節する突出棒４とを有して構成される。In this embodiment, a cylindrical cavity 1 for resonating a light beam from a rubidium lamp and a microwave from an oscillator has a light entrance hole 7 for introducing a light beam,
An introduction unit 6 for inputting microwaves, a spherical or hemispherical rubidium gas cell 3 for outputting a light beam and a microwave resonant beam to the light receiving element 2, and a light receiving hole 7 and a rubidium gas cell 3 are provided between the light entrance hole 7 and the rubidium gas cell 3. It has a plurality of dielectric plates 5 and a protruding rod 4 for adjusting the frequency of the resonance beam between the dielectric plates 5 and the rubidium gas cell 3.
【０００７】次に本実施例の動作について説明する。誘
電体板５はその枚数を変える事により、キャビティ１の
共振用周波数が変化し、従って、誘電体板５の枚数の調
整により誘電体板５、ルビジウムガスセル３、光受光素
子２とキャビティ１において決定される共振周波数の粗
調整が可能となる。Next, the operation of this embodiment will be described. By changing the number of the dielectric plates 5, the resonance frequency of the cavity 1 is changed. Therefore, by adjusting the number of the dielectric plates 5, the dielectric plate 5, the rubidium gas cell 3, the light receiving element 2, and the cavity 1 are adjusted. Coarse adjustment of the determined resonance frequency becomes possible.
【０００８】又、チューニング用突出棒４はルビジウム
ガスセル３を避けてキャビティ長の１／３程度の箇所に
固定し、チューニング用突出棒４では挿入深さを調節す
る事により、マイクロ波導入部６から入力されたマイク
ロ波に共振させてキャビティ１の共振周波数を微調整す
る。Further, the projecting rod 4 for tuning is fixed at a location of about 1/3 of the cavity length avoiding the rubidium gas cell 3, and the insertion depth of the projecting rod 4 for tuning is adjusted so that the microwave introduction section 6 The resonance frequency of the cavity 1 is finely adjusted by resonating with the microwave input from.
【０００９】[0009]
【発明の効果】以上説明したように本発明によれば、キ
ャビティに挿入する誘電体板の枚数を変えてキャビティ
内の共振周波数の粗調整を可能とし、更にキャビティの
壁面を貫通するチューニング用突出棒により共振周波数
の微調整が可能となり、キャビティの同調調整が容易に
なり、更にキャビティを小型に出来るという効果を有す
る。As described above, according to the present invention, the resonance frequency in the cavity can be roughly adjusted by changing the number of dielectric plates inserted into the cavity, and further, the tuning protrusion penetrating through the wall surface of the cavity. The rod allows fine adjustment of the resonance frequency, facilitates tuning adjustment of the cavity, and has the effect of further reducing the size of the cavity.
【図１】本発明の一実施例を示す正面図（Ａ）及び側面
図（Ｂ）である。FIG. 1 is a front view (A) and a side view (B) showing an embodiment of the present invention.
１ キャビティ ２ 受光素子 ３ ルビジウムガスセル ４ チューニング用突出棒 ５ 複数の誘電体板 ６ マイクロ波導入部 ７ 光入射孔 DESCRIPTION OF SYMBOLS 1 Cavity 2 Light receiving element 3 Rubidium gas cell 4 Tuning rod 5 Multiple dielectric plates 6 Microwave introduction part 7 Light entrance hole
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H01S 1/00 - 1/06 H03L 7/26 Continuation of the front page (58) Field surveyed (Int. Cl. 6 , DB name) H01S 1/00-1/06 H03L 7/26
Claims (1)
振器からのマイクロ波とを共振させる円筒形のキャビテ
ィにおいて、前記光ビームを導入する光入射孔と、前記
マイクロ波を入力する導入部と、前記光ビームと前記マ
イクロ波との共振ビームを受光素子に出力する球状又は
半球状のルビジウムガスセルと、前記光入射孔と前記ル
ビジウムガスセルとの間に設けられた複数の誘電体板
と、前記ルビジウムガスセルを避けたキャビティ長の１
／３程度の箇所の前記誘電体板と前記ルビジウムガスセ
ルとの間に前記共振ビームの周波数を調節する突出棒を
設けることを特徴とするルビジウム原子発振器。1. A cylindrical cavity for resonating a light beam from a rubidium lamp unit and a microwave from an oscillator, a light entrance hole for introducing the light beam, an introduction unit for inputting the microwave, and wherein a spherical or hemispherical rubidium gas cell and outputs the resonating beam of the light beam and the microwave receiving element, and the light entrance aperture Le
A plurality of dielectric plates provided between the Bijiumugasuseru, 1 of cavity length to avoid the rubidium gas cell
About 3/3 of the dielectric plate and the rubidium gas cell.
And a projecting rod for adjusting the frequency of the resonant beam
A rubidium atomic oscillator is provided .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24701392A JP2874476B2 (en) | 1992-09-17 | 1992-09-17 | Rubidium atomic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24701392A JP2874476B2 (en) | 1992-09-17 | 1992-09-17 | Rubidium atomic oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0697538A JPH0697538A (en) | 1994-04-08 |
| JP2874476B2 true JP2874476B2 (en) | 1999-03-24 |
Family
ID=17157100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24701392A Expired - Fee Related JP2874476B2 (en) | 1992-09-17 | 1992-09-17 | Rubidium atomic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2874476B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332841B (en) * | 2021-01-05 | 2021-04-13 | 中国科学院精密测量科学与技术创新研究院 | Rectangular microwave cavity for rubidium frequency standard |
-
1992
- 1992-09-17 JP JP24701392A patent/JP2874476B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0697538A (en) | 1994-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1200859A (en) | Cavity resonator for atomic frequency standard | |
| JP3137787B2 (en) | Microwave lamp with rotating field | |
| US5517157A (en) | Evanescent-field interrogator for atomic frequency standards | |
| JP3204905B2 (en) | Dielectric resonator for high frequency filter and filter including such resonator | |
| EP1252683B1 (en) | Quasi dual-mode resonators | |
| US6657520B2 (en) | Waveguide filter | |
| JP2874476B2 (en) | Rubidium atomic oscillator | |
| JP2808442B2 (en) | Multimode cavity resonator for waveguide filter | |
| JP2808441B2 (en) | Multimode Cavity Resonator for Waveguide Filter Including Elliptical Waveguide Segment | |
| US5379317A (en) | Microwave-excited slab waveguide laser with all metal sealed cavity | |
| US2954536A (en) | Capacitively coupled cavity resonator | |
| JP2006019238A (en) | Waveguide system of electrodeless lighting apparatus | |
| US20010007439A1 (en) | Resonator, in particular for a microwave filter, and a filter including it | |
| US5017891A (en) | Magnetrons with resonator element for stabilizing output radiation frequency | |
| JPH05190934A (en) | Rubidium atom oscillator | |
| JPH05218862A (en) | Rubidium atom oscillator | |
| JPH04302219A (en) | Rubidium atom oscillator | |
| JPH05198388A (en) | Plasma processing device | |
| JPH0131316B2 (en) | ||
| JP3356870B2 (en) | Resonator for atomic oscillator | |
| EP0366428B1 (en) | Magnetron tuning systems | |
| JP2743906B2 (en) | Rubidium atomic oscillator | |
| JPH06244722A (en) | Rubidium atom oscillator | |
| EP0899808A2 (en) | Dual mode cavity resonator with coupling grooves | |
| JPH05167306A (en) | Dielectric band pass filter having conductive barrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981215 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080114 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100114 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110114 Year of fee payment: 12 |
|
| LAPS | Cancellation because of no payment of annual fees |