JPH0131316B2 - - Google Patents
Info
- Publication number
- JPH0131316B2 JPH0131316B2 JP57218682A JP21868282A JPH0131316B2 JP H0131316 B2 JPH0131316 B2 JP H0131316B2 JP 57218682 A JP57218682 A JP 57218682A JP 21868282 A JP21868282 A JP 21868282A JP H0131316 B2 JPH0131316 B2 JP H0131316B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- cavity
- rubidium
- gas cell
- lamp
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/26—Automatic control of frequency or phase; Synchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
【発明の詳細な説明】
本発明は光ポンピング法を用いたガスセル形ル
ビジウム原子発振器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas cell type rubidium atomic oscillator using an optical pumping method.
従来のガスセル形ルビジウム原子発振器におい
ては原子共嗚を利用するためキヤビテイが必要不
可欠である。このキヤビテイにはマイクロ波を発
生させるためのアンテナおよびルビジウムガスセ
ルが設けられており、キヤビテイの小型化のた
め、アンテナとガスセルの壁面は隣接する位置に
置かれている。このような従来構造においては、
ガスセルの壁面がアンテナの近くにあるため、ガ
ラス面が誘電損失となつてキヤビテイのモードを
乱しＱを低下させるという欠込がある。 In the conventional gas cell type rubidium atomic oscillator, a cavity is essential to utilize atomic resonance. This cavity is provided with an antenna for generating microwaves and a rubidium gas cell, and in order to downsize the cavity, the antenna and the wall of the gas cell are placed adjacent to each other. In such a conventional structure,
Since the wall of the gas cell is close to the antenna, there is a drawback that the glass surface causes dielectric loss, which disturbs the cavity mode and lowers the Q.
本発明の目的は従来の欠点を除去し、小型で高
性能なルビジウム原子発振器を提供することにあ
る。本発明の発振器は片側の面板を２段式にした
ルビジウムガスセルをキヤビテイ内に有する事を
特徴とする。 SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art and provide a small, high-performance rubidium atomic oscillator. The oscillator of the present invention is characterized by having a rubidium gas cell with a two-stage face plate on one side in the cavity.
次に本発明を図面を参照して詳細に説明する。 Next, the present invention will be explained in detail with reference to the drawings.
第１図は本発明の一実施例を示す図であり、円
筒形をしたキヤビテイ１内には、面板を２段式に
したルビジウムガスセル２が設けられている。キ
ヤビテイ１の片側にはマイクロ波発生用のアンテ
ナ３が設けられ、反対側には受光素子として太陽
電池４が設けられている。ルビジウムランプ５
（第２図）からの光は、キヤビテイ１の光通過用
孔６を通つて太陽電池４に達する。アンテナ３に
よつてマイクロ波はルビジウムガスセル２の壁面
の影響を殆ど受けることなく、効果的に放射され
る。 FIG. 1 is a diagram showing an embodiment of the present invention, in which a rubidium gas cell 2 having a two-stage face plate is provided in a cylindrical cavity 1. As shown in FIG. An antenna 3 for generating microwaves is provided on one side of the cavity 1, and a solar cell 4 is provided as a light receiving element on the opposite side. rubidium lamp 5
(FIG. 2) reaches the solar cell 4 through the light passage hole 6 of the cavity 1. The microwave is effectively radiated by the antenna 3 without being affected by the wall surface of the rubidium gas cell 2.
第２図は本実施例の光−マイクロ波共嗚部を示
す一部破さい斜視図であり、同一参照数字は第１
図で示したものと同一のものを示す。 FIG. 2 is a partially cutaway perspective view showing the optical-microwave coupling part of this embodiment, and the same reference numerals are the same as the first one.
The same thing as shown in the figure is shown.
第２図において、キヤビテイ１内のルビジウム
ガスセル２の材料としては誘電損失の少ないガラ
ス例えば石英などが使われており、アンテナ３及
びその電界方向の最も強い部分にガラスの壁面が
位置しないようにガスセル２は２段式の円筒形を
した構造になつている。また、アンテナと反対側
にマイクロ波モニター用のアンテナ７も取り付け
が容易な構造になつている。 In Fig. 2, the rubidium gas cell 2 in the cavity 1 is made of glass with low dielectric loss, such as quartz, and the gas cell is designed so that the glass wall is not located in the antenna 3 and its strongest part in the direction of the electric field. 2 has a two-stage cylindrical structure. Furthermore, the antenna 7 for microwave monitoring is also easily attached to the opposite side of the antenna.
以上のように本発明においては、キヤビテイ内
に２段式円筒形のガスセルを有しているため、マ
イクロ波を効果的に発生させることができ、小型
でかつ高性能のルビジウム原子発振器が得られ
る。 As described above, since the present invention has a two-stage cylindrical gas cell in the cavity, microwaves can be effectively generated, and a small and high-performance rubidium atomic oscillator can be obtained. .
第１図は本発明の一実施例を示す構成図、第２
図は上記実施例を示す一部破さい斜視図である。
第１および第２図において、１……キヤビテ
イ、２……ルビジウムガスセル、３……アンテ
ナ、４……太陽電池、５……ルビジウムランプ、
６……光通過用孔、７……モニター用アンテナ。
FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
The figure is a partially cutaway perspective view showing the above embodiment. In FIGS. 1 and 2, 1... cavity, 2... rubidium gas cell, 3... antenna, 4... solar cell, 5... rubidium lamp,
6...Light passage hole, 7...Monitor antenna.
Claims (1)
通過する孔を有する円筒状キヤビテイと、このキ
ヤビテイの前記ランプ側の一端に設けられたマイ
クロ波発生用のアンテナと、前記キヤビテイ内に
設けられ前記アンテナに対向する部分の壁面が前
記アンテナと離れて対向するよう断面凸状に形成
された円筒形ルビジウムがスセルと、前記キヤビ
テイの他端に設けられ前記アンテナで発生された
マイクロ波が前記セル内のルビジウムガスの共嗚
周波数と一致するとき前記ガスセルを通る光の吸
収による光出力の減少を検出する受光素子とから
構成されたことを特徴とするルビジウム原子発振
器。1. A rubidium lamp, a cylindrical cavity having a hole through which light from the lamp passes, an antenna for generating microwaves provided at one end of the cavity on the lamp side, and an antenna provided within the cavity and connected to the antenna. A cylindrical rubidium whose cross section is convex so that the wall surface of the opposing portion faces away from the antenna is provided at the other end of the cavity, and the microwave generated by the antenna is transmitted to the rubidium in the cell. A rubidium atomic oscillator comprising: a light receiving element that detects a decrease in light output due to absorption of light passing through the gas cell when the frequency matches the resonant frequency of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21868282A JPS59108381A (en) | 1982-12-14 | 1982-12-14 | Rubidium atom oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21868282A JPS59108381A (en) | 1982-12-14 | 1982-12-14 | Rubidium atom oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59108381A JPS59108381A (en) | 1984-06-22 |
| JPH0131316B2 true JPH0131316B2 (en) | 1989-06-26 |
Family
ID=16723762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21868282A Granted JPS59108381A (en) | 1982-12-14 | 1982-12-14 | Rubidium atom oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59108381A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2679099B2 (en) * | 1988-04-07 | 1997-11-19 | 日本電気株式会社 | Rubidium atomic oscillator |
| JPH0817329B2 (en) * | 1992-11-13 | 1996-02-21 | 日本電気株式会社 | Rubidium gas cell for rubidium atomic oscillator |
| JP2725590B2 (en) * | 1994-03-07 | 1998-03-11 | 日本電気株式会社 | Optical microwave unit for rubidium atomic oscillator |
| WO2025203638A1 (en) * | 2024-03-29 | 2025-10-02 | Tdk株式会社 | Gas cell for atomic clock and structure for atomic clock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2148329B1 (en) * | 1971-08-06 | 1974-03-29 | Anvar | |
| JPS5449097A (en) * | 1977-09-27 | 1979-04-18 | Fujitsu Ltd | Atomic oscillator |
-
1982
- 1982-12-14 JP JP21868282A patent/JPS59108381A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59108381A (en) | 1984-06-22 |
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