JPH02106984A - Laser device - Google Patents

Laser device

Info

Publication number
JPH02106984A
JPH02106984A JP25937188A JP25937188A JPH02106984A JP H02106984 A JPH02106984 A JP H02106984A JP 25937188 A JP25937188 A JP 25937188A JP 25937188 A JP25937188 A JP 25937188A JP H02106984 A JPH02106984 A JP H02106984A
Authority
JP
Japan
Prior art keywords
dye
wavelength
beams
oscillation
stage
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
Application number
JP25937188A
Other languages
Japanese (ja)
Inventor
Katsushi Nishizawa
西沢　克志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP25937188A priority Critical patent/JPH02106984A/en
Publication of JPH02106984A publication Critical patent/JPH02106984A/en
Pending legal-status Critical Current

Links

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
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/20—Liquids
    • H01S3/213—Liquids including an organic dye

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To increase an output by several dozen % by comparatively simple constitution by utilizing copper vapor laser beams having a wavelength of 578nm as excitation beams for a dye laser by spectrally diffracting copper vapor laser beams from a copper vapor laser device into the oscillation lines of a wavelength of 510nm and the wavelength of 578nm and separately supplying the oscillation stage and amplification stage of a dye laser device with the oscillation lines. CONSTITUTION:Copper vapor laser beams 201 are separated by a dye chroic mirror 12, and beams 202 having a wavelength 578nm are reflected and projected to an oscillation-stage dye cell 16 while beams 203 having a wavelength 510nm are reflected by a total reflection mirror 13 and projected to an amplification- stage dye cell 17. Beams having a specific wavelength are selected by an optical resonator 18 in beams emitted from the oscillation-stage dye cell 16 to which beams 202 having the wavelength of 578nm are projected, and dye laser beams 204 are emitted from the resonator 18 and projected to the amplification-stage dye cell 17. The dye laser beams 204 are amplified by the beams 203 having the wavelength of 510nm projected at the same time as the dye laser beams 204, and emitted to the outside as dye laser beams 205 having a high output.

Description

【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は銅蒸気レーザ光を励起光として色素レーザ装置
の発振を行なわせるレーザ装置に係り、特に銅蒸気レー
ザ光出力の有効利用が図れるレーザ装置に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a laser device that causes a dye laser device to oscillate using a copper vapor laser beam as excitation light, and particularly relates to a laser device that oscillates a dye laser device using a copper vapor laser beam as excitation light. This invention relates to a laser device that can be used effectively.

（従来の技術） 第３図にこの種のレーザ装置の従来例を示している。銅
蒸気レーザ装置１の発振光路上にカットフィルタ２、ビ
ームスプリッタ３および全反射ミラー４が順次に配置さ
れ、銅蒸気レーザ光１０１のうち、カットフィルタ２を
透過した波長５１Ｑｎｍの発振光のみが、ビームスプリ
ッタ３および全反射ミラー４により反射されて色素レー
ザ装置５に入射されるようになっている。色素レーザ装
置５は集光レンズ６．７、発振段色素セル８、光共振器
９および増幅段色素セル１０等を有し、入射された銅蒸
気レーザ光１０２を励起光として色素レーザ光１０３を
発振するようになっている。(Prior Art) FIG. 3 shows a conventional example of this type of laser device. A cut filter 2, a beam splitter 3, and a total reflection mirror 4 are sequentially arranged on the oscillation optical path of the copper vapor laser device 1, and of the copper vapor laser light 101, only the oscillation light with a wavelength of 51 Qnm that passes through the cut filter 2 is The beam is reflected by a beam splitter 3 and a total reflection mirror 4 and is incident on a dye laser device 5. The dye laser device 5 has a condenser lens 6.7, an oscillation stage dye cell 8, an optical resonator 9, an amplification stage dye cell 10, etc., and emits a dye laser beam 103 using the incident copper vapor laser beam 102 as excitation light. It starts to oscillate.

（発明が解決しようとする課題） ところで上述した従来のレーザ装置では、色素レーザ装
置への励起光として銅蒸気レーザ光のうち５１０ｎｍの
波長もののみを利用している。(Problems to be Solved by the Invention) In the conventional laser device described above, only a wavelength of 510 nm of copper vapor laser light is used as excitation light for the dye laser device.

このため、１ｊ４Ｎ気レーザ出力の２／３程度しか色素
レーザ励起に寄与されず、それだけレーザ出力の利用効
率が低いものどなっている。For this reason, only about 2/3 of the 1j4N laser output is contributed to excitation of the dye laser, and the utilization efficiency of the laser output is correspondingly low.

なお、レーザ装置の通人出力を高める手段として一般に
装置構成の大型化が行なわれるが、その場合には投入電
力やレーザ出力がｍ加することにより、装置への熱的ま
たは機械的影響が大きくなり、耐久性その他種々の点で
問題が生じることがある。In addition, as a means to increase the output power of a laser device, the device configuration is generally enlarged, but in this case, the input power and laser output are increased, which causes a large thermal or mechanical effect on the device. This may cause problems in terms of durability and other issues.

本発明はこのような事情に鑑みてなされたもので、銅蒸
気レーザ光の励起光として利用効率を高め、色素レーザ
光の出力上昇を有効に図ることができるレーザ装置を提
供することを目的とする。The present invention was made in view of the above circumstances, and an object of the present invention is to provide a laser device that can increase the efficiency of using copper vapor laser light as excitation light and effectively increase the output of dye laser light. do.

（発明の構成） （課題を解決するための手段） 本発明はＩＩ４蒸気レーザ光を発する銅蒸気レーザ装ｄ
と、この銅蒸気レーザ９４社から発する銅蒸気レーザ光
を励起光として色素レーザ光を発する色素レーザ装置と
を備えたレーザ装置において、前記色素レーザ装置での
発振波長を６００ｎｒｎよりも長く設定するとともに、
その色素レーザ装置を発振段と１つ以上の増幅段とを有
するものとし、その発振段と増幅段とに対して銅蒸気レ
ーザ装置からの銅蒸気レーザ光を５１０ｎｒｎの波長の
発振線と５７８ｎｍの波長の発振線とに分光してそれぞ
れ供給する光学装θを設けたことを特徴とする。(Structure of the Invention) (Means for Solving the Problems) The present invention provides a copper vapor laser device d that emits II4 vapor laser light.
and a dye laser device that emits dye laser light using copper vapor laser light emitted from Copper Vapor Laser Company 94 as excitation light, in which the oscillation wavelength of the dye laser device is set to be longer than 600nrn, and ,
The dye laser device has an oscillation stage and one or more amplification stages, and the copper vapor laser light from the copper vapor laser device is applied to the oscillation stage and the amplification stage with an oscillation line having a wavelength of 510 nm and an oscillation line having a wavelength of 578 nm. The present invention is characterized in that it is provided with an optical device θ that separates the wavelength into oscillation lines and supplies them respectively.

（作用） 色素レーザ装置の色素セルに銅蒸気１ノーザ光を照射し
た場合、セル中の色素は吸収した銅蒸気レーザ光の波長
よりも長波長の色素レーザ光を放出する。発明者の検討
によると、色素レーザ装置での発振波長を６００ｎｍよ
りも長く設定すれば、銅蒸気レーザ光の主要発振光であ
る波長５１０ｎｍおよび波長５７８ｎｍの両光を利用で
きることが判った。(Function) When a dye cell of a dye laser device is irradiated with copper vapor 1 noser light, the dye in the cell emits dye laser light with a wavelength longer than the wavelength of the absorbed copper vapor laser light. According to the inventor's study, it has been found that if the oscillation wavelength of the dye laser device is set to be longer than 600 nm, it is possible to utilize both light having wavelengths of 510 nm and 578 nm, which are the main oscillation lights of copper vapor laser light.

したがって、本発明によると、従来カットフィルタでカ
ットされていた波長５７８ｎｍの銅蒸気レーザ光も色素
レーザ光発振用励起光として用いることにより１ノーザ
光の利用効率が従来の装置に比べて向上し、同一の大き
ざのレーザ装置に１１１３いても出力上昇が有効的に図
れるように−なる。Therefore, according to the present invention, by using copper vapor laser light with a wavelength of 578 nm, which was conventionally cut by a cut filter, as excitation light for dye laser light oscillation, the utilization efficiency of one laser light is improved compared to the conventional device, Even if the laser device 1113 has the same size, the output can be effectively increased.

（実施例） Ｊス下、本発明の一実施例を第７図を参照して説明する
。(Embodiment) An embodiment of the present invention will be described below with reference to FIG. 7.

この実施例のレーザ装置では、銅蒸気レーザ装ｗ１１の
発振光路上に光学装置としてダイクロイックミラー１２
および全反匍ミラー１３を順次に設けている。ダイクロ
イックミラー１２は、銅蒸気レーデ光２０１のうち波長
が５７８ｎｒｎの光２０２を反射し、波長が５１００ｍ
の光を透過するものとしている。全反射ミラー１３はダ
イクロイックミラー１２を透過した波長が５１０ｎｍの
光２０３を反ｏ１するものとしている。In the laser device of this embodiment, a dichroic mirror 12 is used as an optical device on the oscillation optical path of the copper vapor laser device w11.
and full-reverse mirrors 13 are sequentially provided. The dichroic mirror 12 reflects the light 202 with a wavelength of 578nrn out of the copper vapor lede light 201, and reflects the light 202 with a wavelength of 5100m.
It is assumed that the light of The total reflection mirror 13 reflects the light 203 having a wavelength of 510 nm that has passed through the dichroic mirror 12.

色素レーザ装置２１４は、各ミラー１２．１３の反射光
路上に設けた集光レンズ１５ａ、１５ｂと、この各集光
レンズｔ５ａ、１５ｂのそれぞれ侵方に設けた発振段色
素セル１６および増幅段色素セル１７と、発振段色素セ
ル１６郡に８９けた光共振器１８とを有する構成として
いる。発振段色素セル１６は波長が５７８ｎｍの銅蒸気
レーザ光の吸収効率が高い色素を用いて構成し、また増
幅段色素セル１７は波長が５１０ｎｍの＃ｌ蒸気レーザ
光の吸収効率が高い色素を用いて構成１ノでいる。The dye laser device 214 includes condenser lenses 15a and 15b provided on the reflection optical path of each mirror 12.13, and an oscillation stage dye cell 16 and an amplification stage dye provided in the direction of each of the condensing lenses t5a and 15b, respectively. The structure includes a cell 17 and an 89-digit optical resonator 18 in 16 groups of oscillation stage dye cells. The oscillation stage dye cell 16 is constructed using a dye that has a high absorption efficiency of copper vapor laser light with a wavelength of 578 nm, and the amplification stage dye cell 17 is constructed using a dye that has a high absorption efficiency of #l vapor laser light with a wavelength of 510 nm. The composition is 1.

しかして、銅蒸気レーザ装置１１から発せられた波長５
１０ｎｍおよび５７８ｎｍの光を含む銅蒸気レーザ光２
０１はダイクロイックミラー１２において分離され、波
長５７８ｎｍの光２０２は反射して発振段色素セル１６
に入射される一方、波長５１０ｎｍの光２０３はダイク
ロイックミラー１２透過後に全反射ミラー１３で反射し
て増幅段色素セル１７に入射される。Therefore, the wavelength 5 emitted from the copper vapor laser device 11
Copper vapor laser light 2 containing 10nm and 578nm light
01 is separated by the dichroic mirror 12, and the light 202 with a wavelength of 578 nm is reflected and sent to the oscillation stage dye cell 16.
On the other hand, the light 203 having a wavelength of 510 nm is transmitted through the dichroic mirror 12, reflected by the total reflection mirror 13, and is incident on the amplification stage dye cell 17.

波長５７８ｎｒｎの光２０２が入射された発振段色素セ
ル１６で発した光は光共振器１８によって特定波長のも
のが選択され、色素レーザ光２０４として共振器１８か
ら出射され増Ｉ！Ａ段色素セル１７に入射される。The light emitted from the oscillation stage dye cell 16 into which the light 202 with a wavelength of 578nrn is incident is selected by the optical resonator 18, and is emitted from the resonator 18 as dye laser light 204, increasing I! The light enters the A-stage dye cell 17.

増幅段色素セル１７では、色素１ノーザ光２０４がこれ
と同時に入射される波長５１０ｎｍの光２０３によって
増幅され、高出力の色素レーザ光２０５として外方に出
射される。In the amplification stage dye cell 17, the dye 1 nose light 204 is amplified by the simultaneously incident light 203 with a wavelength of 510 nm, and is emitted to the outside as a high-output dye laser light 205.

実験結果によると、従来のレーザ装置において例えば銅
蒸気レーザ装置の出力を１５Ｗとし、色素としてＤＣＭ
を用いた色素レーザ光の発振を行なわせた場合、色素レ
ーザ装置への投入光（波長５１０ｎｍのみ）の出力はＩ
ＯＷ程度であり、その色素レーザ装置の発振波長を６４
０ｎｍに設定すると１Ｗ程度の出力が得られた。According to experimental results, in a conventional laser device, for example, the output of a copper vapor laser device was set to 15 W, and DCM was used as the dye.
When oscillating dye laser light using
It is about OW, and the oscillation wavelength of the dye laser device is 64
When set to 0 nm, an output of about 1 W was obtained.

これに対し、前記実施例のものでは、発振段色素セル１
６に波長５７８ｎｍの光の吸収性の高いローダミン６４
０を用い、増幅段色素セル１７に波長５１０ｎｍの光の
吸収性の高いＤＣＭを用いたところ、発振段には５Ｗ、
増幅段には１０Ｗの励起光が投入され、色素レーザ装置
１４から１゜３Ｗ程度の出力が得られた。即ち、同規模
の装置構成のものにおいて、本発明によると従来に比し
て約３０％の出力増加が達成できた。On the other hand, in the embodiment described above, the oscillation stage dye cell 1
6 is rhodamine 64, which has high absorption of light with a wavelength of 578 nm.
0, and DCM with high absorption of light with a wavelength of 510 nm was used for the amplification stage dye cell 17, and the oscillation stage had a power of 5W,
Excitation light of 10 W was input to the amplification stage, and an output of about 1.3 W was obtained from the dye laser device 14. That is, in an apparatus having the same scale configuration, the present invention can achieve an output increase of about 30% compared to the conventional apparatus.

なお、前記実施例では増幅段が１段のものに本発明を適
用したが、増幅段が複数の場合にも同様に適用できる。In the above embodiments, the present invention is applied to a case where there is one amplification stage, but it can be similarly applied to a case where there is a plurality of amplification stages.

第２図はその一例として、２段の増幅段色素セル１７ａ
、１７ｂを用いた場合を示している。この場合には、第
１段の増幅段色素セル１７ａには前記実施例と同様に波
長５１０ｎｍの光２０３を入射させ、第２段の増幅段セ
ル１７ｂには波長５７８ｎｍの光２０２をビームスプリ
ッタ１９、全反射ミラー２０および集光レンズ１５Ｃを
介して入射させるようにしている。As an example, FIG. 2 shows a two-stage amplification stage dye cell 17a.
, 17b is used. In this case, the light 203 with a wavelength of 510 nm is incident on the first amplification stage dye cell 17a as in the previous embodiment, and the light 202 with a wavelength of 578 nm is incident on the second stage amplification stage cell 17b through the beam splitter 19. , the total reflection mirror 20 and the condensing lens 15C.

このような構成によっても前記実施例と同様に出力向上
が図れるものである。With this configuration as well, the output can be improved in the same manner as in the embodiments described above.

（発明の効果） 以上のように、本発明に係るレーザ装置によると、従来
未使用であった波長５７８ｎｍの銅蒸気レーザ光も色素
レーザ用励起光として利用することにより、比較的簡単
な構成で数十％の出力増加が図れるという効果が奏され
る。(Effects of the Invention) As described above, according to the laser device according to the present invention, the copper vapor laser beam with a wavelength of 578 nm, which has not been used in the past, can be used as excitation light for the dye laser, thereby achieving a relatively simple configuration. The effect is that the output can be increased by several tens of percent.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す構成図、第２図は他の
実施例を示す構成図、第３図は従来例を示す構成図であ
る。 １１・・・銅蒸気レーザ装置、１２．１３．１９゜２０
・・・光学装置、１４・・・色素レーザ装置、１６・・
・発振段色素セル、１７，１７ａ、１７ｂ・・・増幅段
色素セル。FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment, and FIG. 3 is a block diagram showing a conventional example. 11...Copper vapor laser device, 12.13.19°20
...Optical device, 14...Dye laser device, 16...
- Oscillation stage dye cell, 17, 17a, 17b...Amplification stage dye cell.

Claims (1)

【特許請求の範囲】[Claims] 　銅蒸気レーザ光を発する銅蒸気レーザ装置と、この銅
蒸気レーザ装置から発する銅蒸気レーザ光を励起光とし
て色素レーザ光を発する色素レーザ装置とを備えたレー
ザ装置において、前記色素レーザ装置での発振波長を６
００ｎｍよりも長く設定するとともに、その色素レーザ
装置を発振段と１つ以上の増幅段とを有するものとし、
その発振段と増幅段とに対して銅蒸気レーザ装置からの
銅蒸気レーザ光を５１０ｎｍの波長の発振線と５７８ｎ
ｍの波長の発振線とに分光してそれぞれ供給する光学装
置を設けたことを特徴とするレーザ装置。In a laser device comprising a copper vapor laser device that emits a copper vapor laser beam, and a dye laser device that emits a dye laser beam using the copper vapor laser beam emitted from the copper vapor laser device as excitation light, oscillation in the dye laser device 6 wavelengths
00 nm, and the dye laser device has an oscillation stage and one or more amplification stages,
The oscillation stage and the amplification stage are provided with a copper vapor laser beam from a copper vapor laser device with a 510nm wavelength oscillation line and a 578nm wavelength oscillation line.
1. A laser device comprising an optical device that separates into oscillation lines having a wavelength of m and supplies each.
JP25937188A 1988-10-17 1988-10-17 Laser device Pending JPH02106984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25937188A JPH02106984A (en) 1988-10-17 1988-10-17 Laser device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25937188A JPH02106984A (en) 1988-10-17 1988-10-17 Laser device

Publications (1)

Publication Number Publication Date
JPH02106984A true JPH02106984A (en) 1990-04-19

Family

ID=17333192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25937188A Pending JPH02106984A (en) 1988-10-17 1988-10-17 Laser device

Country Status (1)

Country Link
JP (1) JPH02106984A (en)

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