JPH0424975A - Laser equipment - Google Patents
Laser equipmentInfo
- Publication number
- JPH0424975A JPH0424975A JP12477290A JP12477290A JPH0424975A JP H0424975 A JPH0424975 A JP H0424975A JP 12477290 A JP12477290 A JP 12477290A JP 12477290 A JP12477290 A JP 12477290A JP H0424975 A JPH0424975 A JP H0424975A
- Authority
- JP
- Japan
- Prior art keywords
- light
- laser
- wavelength
- laser medium
- quartz glass
- 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.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 claims description 18
- 229910052724 xenon Inorganic materials 0.000 abstract description 12
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000003595 spectral effect Effects 0.000 abstract description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 239000011651 chromium Substances 0.000 abstract 2
- 238000005086 pumping Methods 0.000 abstract 2
- 238000000295 emission spectrum Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- CFNMUZCFSDMZPQ-GHXNOFRVSA-N 7-[(z)-3-methyl-4-(4-methyl-5-oxo-2h-furan-2-yl)but-2-enoxy]chromen-2-one Chemical compound C=1C=C2C=CC(=O)OC2=CC=1OC/C=C(/C)CC1OC(=O)C(C)=C1 CFNMUZCFSDMZPQ-GHXNOFRVSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Lasers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、エネルギー効率の高いレーザー装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a laser device with high energy efficiency.
［従来の技術］
Ｎｄ ： ＹＡＧレーザーの場合、キセノンフラッシュ
ランプを励起光源とし、集光反射鏡でレーザー媒質であ
るＹＡＧロッドに光を照射し、ミラー系からなる共振器
でレーザー発振をさせている。[Conventional technology] In the case of Nd: YAG laser, a xenon flash lamp is used as an excitation light source, a condensing reflector is used to irradiate light onto a YAG rod, which is a laser medium, and a resonator made of a mirror system causes laser oscillation. .
［発明が解決しようとする課題］
しかし、Ｎｔｉ：ＹＡＧは７２０〜８３０ｔＬｒｒＬの
励起光に対してのみレーザー遷移を行うが、キセノンラ
ンプの発光スペクトルは、全波長域でほぼフラットであ
る。７２０ ｎｍより短波長の光はロンドの劣化原因に
、８３［］ｒＬｍより長波長の光は発熱源となり、エネ
ルギーの大きな損失となっている。[Problems to be Solved by the Invention] However, although Nti:YAG performs laser transition only for excitation light of 720 to 830 tLrrL, the emission spectrum of a xenon lamp is substantially flat over the entire wavelength range. Light with a wavelength shorter than 720 nm causes deterioration of the Rondo, and light with a wavelength longer than 83[]rLm becomes a heat source, resulting in a large loss of energy.
本発明は励起光源の発光スペクトルを変化させることに
より、エネルギー効率を上げ、レーザー媒質の劣化を防
ぐことを目的としている。また、エネルギー効率の向上
は、励起光源の寿命を延ばすことにもなる。The present invention aims to improve energy efficiency and prevent deterioration of the laser medium by changing the emission spectrum of the excitation light source. Improving energy efficiency also extends the lifetime of the excitation light source.
［課題を解決するための手段］
本発明は、励起光源、レーザー媒質、共振器から構成さ
れるレーザー装置において、励起光源の出射光をレーザ
ー媒質が効率よくレーザー遷移も行う励起光波長に変換
した後、レーザー媒質に尾射することを特徴とする。[Means for Solving the Problems] The present invention provides a laser device comprising an excitation light source, a laser medium, and a resonator, in which the emitted light from the excitation light source is converted into an excitation light wavelength in which the laser medium efficiently performs laser transition. After that, it emits a tail into the laser medium.
［実施例コ 以下、実施例によって本発明の詳細を示す。[Example code] Hereinafter, the details of the present invention will be illustrated by examples.
（実施例１）
キセノンランプの発光スペクトルを第２図に庁す。クロ
ムをドープした石英ガラス（例えば特屏昭６８−７６９
３３）は４ Ｄ Ｄ 〜６００ ｎ ｍの洪長の光を吸
収し、６００〜８５０Ｔｈ７７Ｌの波長域て発光する。(Example 1) The emission spectrum of a xenon lamp is shown in FIG. Chromium-doped quartz glass (e.g. Tokubei 68-769
33) absorbs light with a wavelength of 4 DD to 600 nm and emits light in the wavelength range of 600 to 850 Th77L.
クロムをドープした石英ガラスを通運したキセノンラン
プのスペクトル分布は、第１図のようになる。６００
ｎｍより短波長の光がカットされ、（Ｓ［］［］〜８５
Ｄｎｍの波長域の輝度が倍増した。The spectral distribution of a xenon lamp carried through chromium-doped quartz glass is shown in FIG. 600
Light with a wavelength shorter than nm is cut, and (S[][]~85
The brightness in the Dnm wavelength range has doubled.
このように波長変換した光を集光反射鏡でＮ（１： Ｙ
ＡＧロッドに照射し、共振器でレーザー光を取り出した
ところ、レーザーの出射強度は従来のほぼ２倍となった
。また、レーザーの出射強度を同等にし、キセノンフラ
ッシュランプの動作エネルギーをほぼ半分にしたところ
、キセノンランプの寿命が１０倍近く延びた。The wavelength-converted light is converted into N (1: Y
When the AG rod was irradiated with the laser beam and the laser beam was extracted using a resonator, the laser output intensity was almost twice that of the conventional one. Furthermore, when the laser output intensity was made the same and the operating energy of the xenon flash lamp was roughly halved, the life of the xenon lamp was extended nearly 10 times.
（実施例２）
セリウムをドープした石英ガラスは、２００〜ｓ ｏ
ｏ ｎｍの紫外線を吸収し、５５０〜５５０７Ｌｍの波
長域で発光する。アレキサンドライトレーザーは、４０
０〜６５ Ｄ ｎｍの励起光を吸収し、７００〜８１８
ｒＬｍの波長可変レーザー発振を起こす。(Example 2) Cerium-doped quartz glass is 200 to s o
It absorbs ultraviolet light of 0 nm and emits light in the wavelength range of 550 to 5507 Lm. Alexandrite laser is 40
Absorbs excitation light of 0-65 D nm, 700-818
Causes rLm wavelength tunable laser oscillation.
クリプトンフラッシュランプの出射光が、セリウムをド
ープした石英ガラスを通過すると、６ＤＱｎｍより短波
長の光がカットされ、５５０〜５５０ｎｍの波長域の輝
度が倍増した。このように波長変換した光を集光反射錠
でアレキサンドライトロッドに照射し、共振器でレーザ
ー光を取り出したところ、レーザーの出射強度は従来の
ほぼ２倍となった。また、長時間使用しても、ロッドに
ソーラリゼーションによる劣化が発生せず、レーザー特
性に変化は認められなかった。When the emitted light from the krypton flash lamp passed through cerium-doped quartz glass, light with wavelengths shorter than 6DQnm was cut, and the brightness in the wavelength range of 550 to 550 nm was doubled. When the wavelength-converted light was irradiated onto an alexandrite rod using a condensing reflective tablet and the laser beam was extracted using a resonator, the laser output intensity was approximately twice that of the conventional one. Furthermore, even after long-term use, the rod did not deteriorate due to solarization, and no change was observed in the laser characteristics.
（実施例６）
代表的な色素レーザーであるクマリン誘導体は４００１
′ＬｒｒＬ付近の波長を励起光として吸収し、４５ａ〜
６００ｎｍの波長可変レーザーとなる。(Example 6) A coumarin derivative that is a typical dye laser is 4001
' Absorb wavelength near LrrL as excitation light, 45a~
It becomes a wavelength tunable laser of 600 nm.
色素レーザーをフラッシュランプで励起する場合ランプ
の発光の立ち上がり時間が１００ナノ秒以下でないと発
振しない。When a dye laser is excited with a flash lamp, it will not oscillate unless the lamp's emission rise time is 100 nanoseconds or less.
セリウムをドープした石英ガラスは、２００〜５ＣＪＯ
ｎｍの紫外線を吸収し、５５０〜５５０７１１ｍの波長
域で発光する。また螢光時間は約１０ナノ秒と非常に短
い。Cerium doped quartz glass is 200~5CJO
It absorbs ultraviolet light in the wavelength range of 550 to 550,711 m. Furthermore, the fluorescence time is very short, about 10 nanoseconds.
キセノンフラッシュランプの出射光が、セリウムをドー
プした石英ガラスを通過すると、５００ｎｍより短波長
０光がカットされ、時間的に遅れることなく、５５０〜
５５ＱｙＬｍの波長域の輝度が倍増した。このように波
長変換した光をクマリン誘導体の循環溶液に照射すると
、従来のほぼ２倍近い強度のレーザー発振が起こった。When the emitted light from a xenon flash lamp passes through quartz glass doped with cerium, the light with wavelengths shorter than 500 nm is cut off, and the light with wavelengths shorter than 500 nm is cut off, and the light from 550 nm to
The brightness in the 55QyLm wavelength range has doubled. When a circulating solution of a coumarin derivative was irradiated with light whose wavelength had been converted in this way, laser oscillation occurred with an intensity nearly twice that of the conventional method.
色素レーザー媒体は紫外線に弱く、化学分解を起こしや
すいバー７のレーザー貼着は非常に窩い安宙忰を示した
。The dye laser medium is sensitive to ultraviolet light and prone to chemical decomposition, and the laser attachment of bar 7 showed very poor stability.
以上数種類のレーザー装置について実施例を述べてきた
が、励起光源やレーザー媒質の種類に何ら限定されるこ
とはない。また、波長変換の方法も種々考えられる。Although embodiments have been described above regarding several types of laser devices, the excitation light source and the type of laser medium are not limited in any way. Furthermore, various methods of wavelength conversion can be considered.
［発明の効果コ
以上述べたように本発明によれば、励起光源、レーザー
媒質、共振器から構成されるレーザー装置において、励
起光源の出射光をレーザー媒質が効率よくレーザー遷移
を行５励起光波長に変換した後、レーザー媒質に照射す
ることにより、エネルギー効率を上げ、レーザー媒質の
劣化を防ぐことができた。また、エネルギー効率の向上
により励起光源の寿命を延ばすことができた。[Effects of the Invention] As described above, according to the present invention, in a laser device composed of an excitation light source, a laser medium, and a resonator, the laser medium efficiently transfers the light emitted from the excitation light source to the excitation light. By irradiating the laser medium after converting it to a wavelength, it was possible to increase energy efficiency and prevent deterioration of the laser medium. Furthermore, the lifetime of the excitation light source could be extended due to improved energy efficiency.
第１図は本発明の実施例１における、クロムをドープし
た石英ガラスを通過したキセノンランプ小−７Ａ＋力Ｌ
Ｆ＋、八女も生才口鴫セ１第２図は、
キセノンランプの発光スペクトルを
表す図である。
以
上Figure 1 shows a xenon lamp small -7A + power L that passed through chromium-doped quartz glass in Example 1 of the present invention.
Figure 2 is a diagram showing the emission spectrum of a xenon lamp. that's all
Claims (1)
ー装置において、励起光源の出射光をレーザー媒質が効
率よくレーザー遷移を行う励起光波長に変換した後、レ
ーザー媒質に照射することを特徴とするレーザー装置。A laser device comprising an excitation light source, a laser medium, and a resonator, characterized in that the laser medium is irradiated with the excitation light after converting the emitted light from the excitation light source into an excitation light wavelength at which the laser medium efficiently undergoes laser transition. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12477290A JPH0424975A (en) | 1990-05-15 | 1990-05-15 | Laser equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12477290A JPH0424975A (en) | 1990-05-15 | 1990-05-15 | Laser equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424975A true JPH0424975A (en) | 1992-01-28 |
Family
ID=14893735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12477290A Pending JPH0424975A (en) | 1990-05-15 | 1990-05-15 | Laser equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424975A (en) |
-
1990
- 1990-05-15 JP JP12477290A patent/JPH0424975A/en active Pending
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