JPS5933276B2 - Laser device - Google Patents
Laser deviceInfo
- Publication number
- JPS5933276B2 JPS5933276B2 JP10755076A JP10755076A JPS5933276B2 JP S5933276 B2 JPS5933276 B2 JP S5933276B2 JP 10755076 A JP10755076 A JP 10755076A JP 10755076 A JP10755076 A JP 10755076A JP S5933276 B2 JPS5933276 B2 JP S5933276B2
- Authority
- JP
- Japan
- Prior art keywords
- high voltage
- flash lamp
- circuit
- application member
- flash
- 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
- 230000005284 excitation Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
- H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Lasers (AREA)
Description
【発明の詳細な説明】
本発明はパルスレーザ発振を行うレーザ媒質、この媒質
の励起光源用フラッシュランプ、主放電回路及びフラッ
シュランプの外部から高圧トリガ−パルスを印加する、
トリガ−回路から成る励起光源駆動回路を備えたレーザ
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a laser medium that performs pulsed laser oscillation, a flash lamp as an excitation light source for this medium, a main discharge circuit, and a high-voltage trigger pulse applied from outside the flash lamp.
The present invention relates to a laser device equipped with an excitation light source drive circuit consisting of a trigger circuit.
従来、固体レーザ装置、例えばルビーレーザ、Ｎｄ：Ｙ
ＡＧレーザまたはガラスレーザ等に用い・られる励起光
源用フラッシュランプのトリガ一方式の１つとして、フ
ラッシュランプの発光部の外囲から高圧パルスを印加し
てフラッシュランプの放電を開始せしめる、いわゆる外
部トリガ一方式が用いられている。Conventionally, solid-state laser devices, such as ruby lasers, Nd:Y
One type of trigger method for flash lamps for excitation light sources used in AG lasers, glass lasers, etc. is the so-called external trigger, which applies a high-voltage pulse from the outer periphery of the light emitting part of the flash lamp to start the discharge of the flash lamp. One method is used.
この外部トリガ一方式を第１図の回路のように構成して
実施すると、充電用コンデンサ１に電荷が充電されると
同時にフラッシュランプ２の両電極間に高電圧が加わり
、この電圧がフラッシュランプ２の外壁に設けられた高
電圧印加部材３にリークし、さらに高圧発生トランス９
の２次捲線にリーク衝撃電流を流し、そのため高電圧印
加部材３に高電圧を誘起し、フラッシュランプ２が自己
フラッシュを起すことが暫々起り、安定したレーザ発振
が得られないという欠点があつた。When this external trigger type is configured and implemented as shown in the circuit shown in Fig. 1, a high voltage is applied between both electrodes of the flash lamp 2 at the same time as the charging capacitor 1 is charged, and this voltage is applied to the flash lamp. The leakage occurs to the high voltage applying member 3 provided on the outer wall of 2, and the high voltage generating transformer 9
A leakage shock current is passed through the secondary winding of the flash lamp, which induces a high voltage in the high voltage application member 3, causing the flash lamp 2 to self-flash for a while, making it difficult to obtain stable laser oscillation. Ta.
そこで、このような自己フラッシュを無くするために、
第２図に示すように、主放電回路にスイッチ素子６、例
えばイグナイトロンを挿入し、高圧トリガ−パルスを印
加するまでフラッシュランプ２の両電極間に高電圧を加
えないようにしてい ′た。Therefore, in order to eliminate such self-flash,
As shown in FIG. 2, a switching element 6, such as an ignitron, was inserted into the main discharge circuit so that no high voltage was applied between the electrodes of the flash lamp 2 until a high voltage trigger pulse was applied.
しかし、ここに用いられるスイッチ素子６およびこのス
イッチ素子を駆動する回路Ｔは高価なものであるため、
装置の価格を高いものとする。さらに、回路が複雑とな
り取扱いが容易でないという欠点もある。本発明の目的
は以上に述べたような自己フラッシュの起らない、かつ
取扱いの容易な固体レーザ装置を安価に提供することに
ある。However, since the switch element 6 used here and the circuit T that drives this switch element are expensive,
Increase the price of the equipment. Furthermore, there is also the disadvantage that the circuit is complicated and handling is not easy. An object of the present invention is to provide an inexpensive solid-state laser device that does not cause self-flash as described above and is easy to handle.
本発明の実施例を第３図の回路例で説明する。An embodiment of the present invention will be explained using the circuit example shown in FIG.
主放電回路は第１図の回路と同じく電源５゛と、充電用
コンデンサ１とフラッシュランプ２とからなる。１０は
フラッシュランプ２のフラッシュ光により励起されるレ
ーザ媒質、１１は共振器用の反射鏡、トリガ−回路は高
電圧発生トランス９を含むトリガ−パルス発生回路４と
高電圧印加部材３とスパークギャップ８を有する。The main discharge circuit consists of a power source 5', a charging capacitor 1, and a flash lamp 2, as in the circuit shown in FIG. 10 is a laser medium excited by the flash light of the flash lamp 2; 11 is a reflector for a resonator; the trigger circuit is a trigger pulse generation circuit 4 including a high voltage generation transformer 9; a high voltage application member 3; and a spark gap 8. has.
スパークギャップ８は高電圧印加部材３と高電圧発生ト
ランス９の２次側出力端子との間に挿入され、このスパ
ークギャップ８により、フラツシユランプ２の電極から
高電圧印加部材３を通して高電圧発生トランス９の２次
捲線にリークする電流通路は遮断され、したがつて、高
電圧印加部材３における不時の衝撃的高電圧発生はなく
なり、フラッシュランプ２の自己フラツシユは防止され
る。The spark gap 8 is inserted between the high voltage application member 3 and the secondary output terminal of the high voltage generation transformer 9, and this spark gap 8 allows high voltage to be generated from the electrode of the flash lamp 2 through the high voltage application member 3. The current path leaking to the secondary winding of the transformer 9 is cut off, so that there is no accidental generation of an impulsive high voltage in the high voltage application member 3, and self-flashing of the flash lamp 2 is prevented.
一方高電圧発生回路４の高電圧発生トランス９の一次側
に印加されたトリガ−パルスにより、その二次側には２
０〜３０ＫＶの高電圧が発生し、スパークギヤツプが１
ＴｆｒＩｎないし数？であれば容易にプレークダウンを
起し、高電圧印加部材３にトリカー用高電圧が印加され
て、フラツシユランプ２はフラツシユし、そのフラツシ
ユ光によりレーザ媒質１０は励起し、パルスレーザ光１
２を発生する。すなわち、スパークギヤップ８により、
トリカー用高電圧の印加には何等支障なく、不時の自己
フラツシユのみが有効に防止される。On the other hand, due to the trigger pulse applied to the primary side of the high voltage generating transformer 9 of the high voltage generating circuit 4, the secondary side of the high voltage generating transformer 9 is
A high voltage of 0 to 30KV is generated and the spark gap is 1
TfrIn or number? If so, breakdown easily occurs, a high voltage for triggering is applied to the high voltage application member 3, the flash lamp 2 flashes, the flash light excites the laser medium 10, and the pulsed laser light 1
Generates 2. That is, due to the spark gap 8,
There is no problem in applying the high voltage for the trigger, and only accidental self-flashing is effectively prevented.
フラツシユランプ２としてはキセノンガスを封入した直
管型とラセン型とがあるが、ラセン型は冷却水中に浸さ
れて使用することが多く、前述の自己フラツシユはこの
ラセン型でより多く発生するので、本発明が特に有効に
適用される。高圧トリガ−パルス印加部材３は通常フラ
ツシユランプ発光部に巻かれた金属ワイヤーである場合
が多いが、金属反射筒を使用する場合はこの反射筒であ
つてもよい。スパークギヤツプ８としては、２つの導体
を単に適当な距離だけ離して対置させるだけのものでよ
い。導体の材質はパルスの電力が小さいため、損傷はほ
とんど無いので特に限定する必要はなく、実際にはタン
グステンやステンレスが使用されている。There are two types of flash lamp 2: a straight pipe type filled with xenon gas and a helical type.The helical type is often used by being immersed in cooling water, and the above-mentioned self-flash occurs more often with this helical type. Therefore, the present invention is particularly effectively applied. The high-voltage trigger pulse applying member 3 is usually a metal wire wound around the light emitting part of a flash lamp, but if a metal reflector is used, it may be the reflector. The spark gap 8 may be one in which two conductors are simply placed opposite each other at a suitable distance. Since the pulse power is small, there is almost no damage to the material of the conductor, so there is no need to limit the material; tungsten or stainless steel is actually used.
また、導体間の距離は前述のように高圧トリガ−パルス
が２０〜３０ＫＶ程度であれば１７ｍ程度から数ミリメ
ートルで容易にセルフブレークダウンを起すため特に細
かな調整は不要である。Furthermore, as mentioned above, if the high-voltage trigger pulse is about 20 to 30 KV, self-breakdown will easily occur at a distance of about 17 m to several millimeters, so no particularly fine adjustment is necessary.
第１図は従来の外部トリカー方式の基本的な回路例、第
２図はスイツチ素子を用いた従来の外部トリカー方式の
回路例、第３図は本発明によるスパークギヤツプを用い
た外部トリカー方式の回路例を示す。
２・・・・・・フラツシユランプ、５・・・・・・充電
回路、６・・・・・・スイツチ素子、８・・・・・・ス
パークギヤツプ、９・・・・・・高圧パルス発生用トラ
ンス、１０・・・・・・レーザ媒質、１１・・・・・・
共振器用ミラー。Figure 1 is a basic circuit example of a conventional external trigger system, Figure 2 is an example of a circuit of a conventional external trigger system using a switch element, and Figure 3 is a circuit example of an external trigger system using a spark gap according to the present invention. Give an example. 2...Flash lamp, 5...Charging circuit, 6...Switch element, 8...Spark gap, 9...High voltage pulse generation transformer, 10... laser medium, 11...
Mirror for resonator.
Claims (1)
を発生するフラッシュランプと、このフラッシュランプ
の放電用電源と、前記フラッシュランプの外壁部にとり
つけられた高電圧印加部材と、この高電圧印加部材に高
電圧トリガー電圧を印加するための高電圧発生トランス
とを備えたレーザ装置において、前記高電圧印加部材と
高電圧発生トランスの出力端との間にスパークギャップ
を設けたことを特徴とするレーザ装置。1. A laser medium, a flash lamp that generates excitation light to excite the laser medium, a power source for discharging this flash lamp, a high voltage application member attached to the outer wall of the flash lamp, and this high voltage application member. A laser device comprising a high voltage generation transformer for applying a high voltage trigger voltage to the laser device, characterized in that a spark gap is provided between the high voltage application member and the output end of the high voltage generation transformer. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10755076A JPS5933276B2 (en) | 1976-09-07 | 1976-09-07 | Laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10755076A JPS5933276B2 (en) | 1976-09-07 | 1976-09-07 | Laser device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5332695A JPS5332695A (en) | 1978-03-28 |
| JPS5933276B2 true JPS5933276B2 (en) | 1984-08-14 |
Family
ID=14462015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10755076A Expired JPS5933276B2 (en) | 1976-09-07 | 1976-09-07 | Laser device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933276B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638894Y2 (en) * | 1979-02-23 | 1988-03-16 | ||
| JP2005203221A (en) * | 2004-01-15 | 2005-07-28 | Harison Toshiba Lighting Corp | Flash discharge lamp lighting device and radiant energy irradiation device |
-
1976
- 1976-09-07 JP JP10755076A patent/JPS5933276B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5332695A (en) | 1978-03-28 |
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