JPS6037629B2 - ion laser tube - Google Patents
ion laser tubeInfo
- Publication number
- JPS6037629B2 JPS6037629B2 JP15126380A JP15126380A JPS6037629B2 JP S6037629 B2 JPS6037629 B2 JP S6037629B2 JP 15126380 A JP15126380 A JP 15126380A JP 15126380 A JP15126380 A JP 15126380A JP S6037629 B2 JPS6037629 B2 JP S6037629B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- laser
- laser tube
- ion laser
- anode
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910002804 graphite Inorganic materials 0.000 claims description 15
- 239000010439 graphite Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000010849 ion bombardment Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000001093 holography Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/032—Constructional details of gas laser discharge tubes for confinement of the discharge, e.g. by special features of the discharge constricting tube
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Description
【発明の詳細な説明】
本発明は、グラフアィト暁結型紬管を有するイオンレー
ザ管に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ion laser tube having a graphite crystalline type pongee tube.
従来この種のイオンレーザ管は、第１図に示すようにレ
ーザ管１はアノード３とカソード７との間で放電し、光
学窓２，２′の両側にミラーを一組具備した光共振器を
設けることによりレーザ発振し、レーザ光を出力する。Conventionally, this type of ion laser tube consists of an optical resonator, as shown in FIG. By providing this, laser oscillation is performed and laser light is output.
イオンレーザは、イオン化された希ガスのエネルギーレ
ベル間の遷移によってレーザ発振を行なわせるものであ
り、可視城においてワット台の大出力連続発振が得られ
る唯一のガスレーザなのでラマン分光、ホログラフィー
などに広く用いられている。しかし、希ガスのイオン化
エネルギーが高いため、レーザ細管内に数１０アンペア
におよぶ大電流アーク放電を行なわせる必要があり、こ
のときレーザ紬管では６〜９ｋｗに達する熱発生がある
。したがって、イオンレーザの細菅としてはイオン衝撃
に耐えることができ、熱分解し１こくい材料をえらぶ必
要がある。そのため、中央に穴の設けられたグラフアイ
トデイスク群４，１０，１１を並べ、中央穴の列をもっ
てレーザ細管とするものが用いられている。さらに６〜
鰍ｗ‘こおよぶ熱をレーザ紬管外部に放出させるため、
管外部に冷却水を通すなどして冷却しているが長時間使
用していると、グラフアイトデイスク群４，１０，１１
の中央部８の放電吹き出し口６，６′，６″のグラフア
ィトが粉末１２となってくずれる。中央部８の穴径は放
電形状にそって徐々に大きくなり、グラフアイト粉末１
２はグラフアイトデイスク群４，１０，１１の間に積っ
て、アノード３とカソード７間の絶縁抵抗を劣化させる
。そしてアノード３とカソード７間の放電開始に悪影響
を与え、放電開始しにくくなるばかりでなく、放電開始
時に過渡的にアノード３とカソード７は短絡状態となり
、レーザ電源を破損するという問題がある。本発明の目
的は、前記欠点を除去し、長期間にわたって、放電開始
しやすい安定な出力を得ることのできるイオンレーザ管
を提供することにある。以下、第２図の一実施例につい
て本発明を詳細に説明する。Ion lasers perform laser oscillation by transitions between the energy levels of ionized rare gases, and as they are the only gas lasers that can produce continuous oscillations with a high output on the order of Watts, they are widely used in Raman spectroscopy, holography, etc. It is being However, since the ionization energy of the rare gas is high, it is necessary to cause a large current arc discharge of several tens of amperes in the laser tube, and at this time, heat generation of 6 to 9 kW occurs in the laser tube. Therefore, for the narrow tube of the ion laser, it is necessary to select a material that can withstand ion bombardment and is thermally decomposable. For this reason, graphite disk groups 4, 10, and 11 each having a hole in the center are lined up, and the row of center holes forms a laser thin tube. 6 more~
In order to release the hot heat to the outside of the laser pongee tube,
Cooling is done by passing cooling water through the outside of the tube, but if it is used for a long time, graphite disk groups 4, 10, 11
The graphite at the discharge outlets 6, 6', 6'' of the central part 8 collapses into powder 12.The hole diameter of the central part 8 gradually increases along the discharge shape, and the graphite powder 1
2 is accumulated between the graphite disk groups 4, 10, and 11, and deteriorates the insulation resistance between the anode 3 and cathode 7. This not only adversely affects the start of discharge between the anode 3 and the cathode 7, making it difficult to start the discharge, but also creates a transient short-circuit between the anode 3 and the cathode 7 at the start of discharge, causing damage to the laser power source. SUMMARY OF THE INVENTION An object of the present invention is to provide an ion laser tube that eliminates the above-mentioned drawbacks and can provide stable output over a long period of time with easy discharge initiation. The present invention will be described in detail below with reference to an embodiment shown in FIG.
レーザ管１は、アノード３とカソード７との間で放電し
、光共振器によりレーザ発振し、レーザ光を出力する。The laser tube 1 generates a discharge between the anode 3 and the cathode 7, oscillates a laser using an optical resonator, and outputs laser light.
このレーザ管には、アノード３よりのグラフアィトディ
スク４から中間部のグラフアイトデイスク１０までの中
央孔８を除々に細くし、またその反対にカソード７より
のグラフアイトディスク１１までの中央孔８を除々に太
くし、その上アノード３の放電吹き出し口５とグラフア
ィトディスク群４，１０，１１の放電吹き出し口６，６
′，６″の全部を、放電形状に合せて両側かり７ーパー
加工したアノード３、グラフアイトディスク群４，１０
，１１が設けられている。従って長時間使用してもアノ
ード３、グラフアィトディスク群４，１０，１１の中央
孔８はイオン衝撃を受けにくくなり、粉末状になってく
ずれることなく、中央孔８の穴形状は変化しにくくなる
。このため、レーザ光出力を変化させることはなくアノ
ード３、カソード７間の絶縁を劣化することもない。よ
って長期間にわたってレーザ出力の安定な放電開始しや
すいイオンレーザ管を得ることができる。In this laser tube, a central hole 8 from the graphite disk 4 from the anode 3 to the graphite disk 10 in the middle part is gradually tapered, and conversely, a central hole 8 from the graphite disk 11 from the cathode 7 is made gradually thinner. 8 gradually becomes thicker, and in addition, the discharge outlet 5 of the anode 3 and the discharge outlets 6, 6 of the graphite disk groups 4, 10, 11.
Anode 3, graphite disk groups 4 and 10, all of which have been machined with 7-perforations on both sides to match the discharge shape.
, 11 are provided. Therefore, even if used for a long time, the anode 3 and the center hole 8 of the graphite disk groups 4, 10, and 11 will be less susceptible to ion bombardment, and the shape of the center hole 8 will not change without turning into powder and crumbling. It becomes difficult. Therefore, the laser light output is not changed and the insulation between the anode 3 and cathode 7 is not deteriorated. Therefore, it is possible to obtain an ion laser tube that has a stable laser output over a long period of time and is easy to start discharge.
第１図は従来のイオンレーザ装置を示す断面図、第２図
は本発明の一実施例を示す断面図である。
１・・・・・・レーザ管、２，２′・…・・光学窓、３
…・・・アノード、４，１０，１１……グラフアイトデ
イスク群、５，６・・…・放電吹き出し口、７・・・・
・・カソード、８・・・・・・中央部、９・・・・・・
リターンパス、１２・・・・・・グラフアィト粉末。
繁’図
第２図FIG. 1 is a sectional view showing a conventional ion laser device, and FIG. 2 is a sectional view showing an embodiment of the present invention. 1... Laser tube, 2, 2'... Optical window, 3
... Anode, 4, 10, 11 ... Graphite disk group, 5, 6 ... Discharge outlet, 7 ...
...Cathode, 8...Central part, 9...
Return pass, 12...Graphite powder. Traditional map Figure 2
Claims (1)
りなるレーザ細管を有するイオンレーザ管において、前
記グラフアイドデイスク群の細管部を放電形状に合わせ
てテーパー状としたグラフアイトデイスクを備えたこと
を特徴とするイオンレーザ管。1. An ion laser tube having a laser capillary tube made of a group of graphite disks between an anode and a cathode, characterized in that the tube portion of the graphite disk group is provided with a graphite disk whose capillary portion is tapered to match the discharge shape. ion laser tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15126380A JPS6037629B2 (en) | 1980-10-28 | 1980-10-28 | ion laser tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15126380A JPS6037629B2 (en) | 1980-10-28 | 1980-10-28 | ion laser tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5775477A JPS5775477A (en) | 1982-05-12 |
| JPS6037629B2 true JPS6037629B2 (en) | 1985-08-27 |
Family
ID=15514832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15126380A Expired JPS6037629B2 (en) | 1980-10-28 | 1980-10-28 | ion laser tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037629B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100221599A1 (en) * | 2007-05-15 | 2010-09-02 | Yasushi Sumihiro | Aa cell battery |
-
1980
- 1980-10-28 JP JP15126380A patent/JPS6037629B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5775477A (en) | 1982-05-12 |
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