JPS5942502A - Infrared light waveguide - Google Patents

Infrared light waveguide

Info

Publication number
JPS5942502A
JPS5942502A JP57152173A JP15217382A JPS5942502A JP S5942502 A JPS5942502 A JP S5942502A JP 57152173 A JP57152173 A JP 57152173A JP 15217382 A JP15217382 A JP 15217382A JP S5942502 A JPS5942502 A JP S5942502A
Authority
JP
Japan
Prior art keywords
fiber
infrared light
infrared
light
vibration
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
JP57152173A
Other languages
Japanese (ja)
Inventor
Hiroshi Tsutsui
博司 筒井
Shinichi Nakahara
信一 中原
Kazuhiro Kayashima
一弘 萱嶋
Hiromasa Ishiwatari
石渡 裕政
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57152173A priority Critical patent/JPS5942502A/en
Publication of JPS5942502A publication Critical patent/JPS5942502A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4296Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/262Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Laser Surgery Devices (AREA)
  • Lasers (AREA)
  • Radiation-Therapy Devices (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To make the distribution of the light energy to be emitted from a fiber for IR light uniform by providing an exciter for oscillation with variable periods and amplitudes in a part of said fiber. CONSTITUTION:The IR light 2 from an IR laser generator 1 is condensed with a condenser lens 3, and is made incident to a fiber 4 for IR light. The fiber is oscillated by an exciter 5 for oscillation and a mode conversion arises in the fiber 4, when the exit pattern 6' of the exit IR light of the fiber is made uniform and the sectional intensity is made uniform as shown by an intensity distribution 7'. The exciter constituted to generate oscillations at variable periods and amplitudes, whereby the exit energy distribution thereof is made uniform according to the work.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は赤外光レーザーを用いたレーザーメス装置およ
びレーザー加工機等に用いられる赤外光導光路に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an infrared light guide path used in a laser scalpel device using an infrared laser, a laser processing machine, and the like.

従来例の構成とその問題点 赤外光レーザーを用いたレーザーメス装置およびレーザ
ー加工機に使用される可撓性のある導光路として、近年
赤外光用ファイバーが開発され使用されている。
Conventional Structure and Problems Infrared fibers have recently been developed and used as flexible light guides used in laser scalpel devices and laser processing machines that use infrared lasers.

以下、その赤外光用ファイバーの従来の使用例を第1図
に示す。赤外光レーザー発生器1から送出された赤外光
2は集光レンズ3により集光され、赤外光用ファイバー
4に入射される。現在開発されている赤外光用ファイバ
ー、特に波長1Q、6μmのCo2 レーザー光の波長
範囲まで透過する赤外光用ファイバーは、ハロゲン化金
属(NaCQ 。
An example of the conventional use of the infrared fiber is shown in FIG. 1 below. Infrared light 2 sent out from an infrared laser generator 1 is focused by a condensing lens 3 and enters an infrared fiber 4. The infrared fibers currently being developed, especially those that transmit up to the wavelength range of 1Q and 6 μm Co2 laser light, are made of metal halide (NaCQ).

KCj2 、KBr 、CsI 、CsBr 、AqC
n 、AgBr 、TflCIl 。
KCj2, KBr, CsI, CsBr, AqC
n, AgBr, TflCIl.

TnBr 、TQBr−TfllおよびTnBr−TI
CQ ’ )を熱間押出方法により製造された多結晶フ
ァイバーである。これらの赤外光用ファイバーに赤外光
レーザーの光を入射すると、第1図に示す出射パターン
6のように、多くのつぶ状に強い強度部分をもつ強度パ
ターンを示す。この原因は、赤外光レーザーの波長に対
するスペックルノイズ、または赤外光用ファイバーが、
小さな粒界をもつ多結晶からなるファイバーであるため
、この粒界によるモードの変換すなわちモードの多次元
化、および散乱によると考えられる。このような出射パ
ターンの場合、その断面の強度は強度分布7に示すよう
に強弱の大きな不均一なものとなる。この分布は集光レ
ンズで集光しても変わらないだめに、レーザーメスおよ
びレーザー加工機に使用すると、切開部分および加工部
分の切れ方、加工仕上りが悪くなる。
TnBr, TQBr-Tfll and TnBr-TI
CQ') is a polycrystalline fiber manufactured by a hot extrusion method. When infrared laser light is incident on these infrared fibers, it shows an intensity pattern having many bulge-shaped areas of high intensity, as shown in the output pattern 6 shown in FIG. The cause of this is speckle noise due to the wavelength of the infrared laser, or the infrared fiber
Since the fiber is made of polycrystals with small grain boundaries, it is thought that the grain boundaries cause mode conversion, that is, mode multidimensionality, and scattering. In the case of such an emission pattern, the intensity of the cross section becomes non-uniform with large variations in intensity as shown in intensity distribution 7. This distribution does not change even if the light is focused by a condensing lens, but when used in a laser scalpel or laser processing machine, the cut and processing finish of the incision and processing portion will be poor.

発明の目的 本発明は前記従来の問題点を解決し、赤外光用ファイバ
ーからの出射エネルギー分布を均一化した赤外光導光路
を提供することを目的とする。
OBJECTS OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and provide an infrared light guide path in which the distribution of energy emitted from an infrared light fiber is made uniform.

発明の構成 本発明は上記目的を達するだめに、赤外光用ファイバー
に振動付加器を設け、赤外光用ファイバーの中間部の少
なくとも一部を振動させ、赤外光用ファイバーからの出
射エネルギー分布を均一化することができるようにした
ものである。
Structure of the Invention In order to achieve the above object, the present invention provides an infrared light fiber with a vibration adder to vibrate at least a part of the intermediate portion of the infrared light fiber, thereby reducing the energy emitted from the infrared light fiber. This makes it possible to make the distribution uniform.

実施例の説明 以下図面を参照しながら、本発明について一実施例とと
もに説明する。
DESCRIPTION OF EMBODIMENTS The present invention will be described below along with one embodiment with reference to the drawings.

第2図は本発明の一実施例における赤外光導光路を用い
たレーザー装置の要部を示したものである、赤外光レー
ザー発生器1から送出された赤外光2は集光レンズ3に
より焦光され、赤外光用ファイバー4に入射される。赤
外光用ファイバー4はこの赤外光用ファイバー4の中間
部に設けられた振動付加器5により振動される。この振
動により、赤外光用ファイバー4内でモード変換が起こ
り、ファイバー4から出射した赤外光の出射パターン6
′は均一になる。すなわちその断面の強度は強度分布7
′に示すように、中間部強度はほぼ均一になる。この均
一性は、振動付加器6の振動周期と振幅に依存する。す
なわち、振動周期を高める程、また振幅を大きくする程
均−性が増す。よって振動付加器5は加工物に応じて振
動周期および振幅を可変できるように構成されている。
FIG. 2 shows the main parts of a laser device using an infrared light guide path according to an embodiment of the present invention. The light is focused into the infrared light fiber 4. The infrared fiber 4 is vibrated by a vibration adder 5 provided in the middle of the infrared fiber 4. Due to this vibration, mode conversion occurs within the infrared light fiber 4, and an emission pattern 6 of the infrared light emitted from the fiber 4 is generated.
′ becomes uniform. In other words, the strength of that cross section is intensity distribution 7
As shown in ′, the strength of the intermediate portion becomes almost uniform. This uniformity depends on the vibration period and amplitude of the vibration applicator 6. That is, the higher the vibration period and the larger the amplitude, the higher the uniformity. Therefore, the vibration adder 5 is configured so that the vibration period and amplitude can be varied depending on the workpiece.

また振動付加器5の具体的構成としては回転機とカムと
を組み合わせて回転数に比例した振動を赤外光用光ファ
イバー4に与えるもの、まだは電磁ソレノイドを用いて
交流電圧周期に比例しだ振動を赤外光用光ファイバー4
に与えるもの、まだは圧電素子を用いて印加電圧′周期
に比例しだ振動を赤外光用光ファイバー4に与えるもの
等を用いればよい。
The specific configuration of the vibration adding device 5 is one that combines a rotating machine and a cam to give the infrared optical fiber 4 vibrations proportional to the number of rotations. Optical fiber for infrared light vibration 4
However, it is sufficient to use a piezoelectric element that applies vibration to the infrared optical fiber 4 in proportion to the period of the applied voltage.

このように、赤外光用ファイバー4から出射した赤外光
を均一化することにより、集光したスポットo、赤外光
の強度分布を均一なものにすることができる。
In this way, by making the infrared light emitted from the infrared fiber 4 uniform, the focused spot o and the intensity distribution of the infrared light can be made uniform.

なお本実施例においては赤外光用ファイバー4の中間部
の一部を振動させたが、入射端および出射端を除く全体
を振動させてもよい。
In this embodiment, a part of the intermediate portion of the infrared fiber 4 is vibrated, but the entire portion except the input end and the output end may be vibrated.

発明の効果 以上のように本発明は赤外光用光ファイバーに振動付加
器を設けることにより、出射エネルギー分布を均一化す
ることができる。とりわけ(1)本発明の赤外光導光路
をレーザーメスに応用することにより、切開部分がシャ
ープになり、丑だ生体組織の焼灼か均一になり、レーザ
ーメスの切開、焼灼効果が非常に向上する。
Effects of the Invention As described above, the present invention can make the output energy distribution uniform by providing a vibration adder to the infrared optical fiber. Particularly (1) By applying the infrared light guide path of the present invention to a laser scalpel, the incision area becomes sharp and the cauterization of loose living tissue becomes uniform, and the incision and cauterization effects of the laser scalpel are greatly improved. .

(2)本発明の赤外光導光路をレーザー加工機に応用す
ることにより、切断面がなめらかになり、またアニール
加工の場合はアニール面の温度が均一になり、加工の効
果が非常に向上する。
(2) By applying the infrared light guide path of the present invention to a laser processing machine, the cut surface becomes smooth, and in the case of annealing, the temperature of the annealed surface becomes uniform, greatly improving the processing effect. .

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

第1図は赤外光用ファイバーを用いた従来のレーザー装
置を示す図、第2図は本発明の一実施例における赤外光
導光路を用いたレーザー装置を示す図である。
FIG. 1 is a diagram showing a conventional laser device using an infrared light fiber, and FIG. 2 is a diagram showing a laser device using an infrared light guide path according to an embodiment of the present invention.

Claims (2)

【特許請求の範囲】[Claims] (1)赤外光用ファイバーと、前記赤外光用ファイバー
の少なくとも一部に振動を与える振動付加器とを備え、
前記振動付加器により前記赤外光用ファイバーから出射
される光エネルギーの分布を均゛ −にすることを特徴
とする赤外光導光路。
(1) comprising an infrared light fiber and a vibration adder that applies vibration to at least a portion of the infrared light fiber;
An infrared light guide path characterized in that the vibration adder uniformizes the distribution of light energy emitted from the infrared fiber.
(2)振動付加器の振動周期および振幅が可変であるこ
とを特徴とする特許請求の範囲第1項記載の赤外光導光
路。
(2) The infrared light guide path according to claim 1, wherein the vibration period and amplitude of the vibration adder are variable.
JP57152173A 1982-08-31 1982-08-31 Infrared light waveguide Pending JPS5942502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57152173A JPS5942502A (en) 1982-08-31 1982-08-31 Infrared light waveguide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57152173A JPS5942502A (en) 1982-08-31 1982-08-31 Infrared light waveguide

Publications (1)

Publication Number Publication Date
JPS5942502A true JPS5942502A (en) 1984-03-09

Family

ID=15534633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57152173A Pending JPS5942502A (en) 1982-08-31 1982-08-31 Infrared light waveguide

Country Status (1)

Country Link
JP (1) JPS5942502A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179451A (en) * 1984-09-26 1986-04-23 松下電器産業株式会社 Laser irradiation apparatus
JPH0475794A (en) * 1990-07-16 1992-03-10 Hitachi Constr Mach Co Ltd Optical fiber for stabilizing output beam mode in laser beam machine
FR2719114A1 (en) * 1994-04-25 1995-10-27 Dilor Global spectral image analysing system for emission type optical and Raman diffusion or fluorescence spectrometer
JP2004188457A (en) * 2002-12-11 2004-07-08 Hitachi Zosen Corp Beam shaping method and device
JP2015500571A (en) * 2011-12-09 2015-01-05 ジェイディーエス ユニフェイズ コーポレーションJDS Uniphase Corporation Varying the beam parameter product of the laser beam
JP6419363B1 (en) * 2017-10-11 2018-11-07 株式会社レフ・テクノロジー Treatment device
WO2020241136A1 (en) * 2019-05-29 2020-12-03 パナソニックIpマネジメント株式会社 Laser machining device and laser machining method using same
WO2020241137A1 (en) * 2019-05-29 2020-12-03 パナソニックIpマネジメント株式会社 Laser machining device and laser machining method using same
JPWO2020241138A1 (en) * 2019-05-29 2020-12-03
CN113555760A (en) * 2021-09-22 2021-10-26 中国工程物理研究院激光聚变研究中心 System and method for dynamically regulating and controlling optical fiber laser mode

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179451A (en) * 1984-09-26 1986-04-23 松下電器産業株式会社 Laser irradiation apparatus
JPH0244223B2 (en) * 1984-09-26 1990-10-03 Matsushita Electric Ind Co Ltd
JPH0475794A (en) * 1990-07-16 1992-03-10 Hitachi Constr Mach Co Ltd Optical fiber for stabilizing output beam mode in laser beam machine
FR2719114A1 (en) * 1994-04-25 1995-10-27 Dilor Global spectral image analysing system for emission type optical and Raman diffusion or fluorescence spectrometer
JP2004188457A (en) * 2002-12-11 2004-07-08 Hitachi Zosen Corp Beam shaping method and device
JP2015500571A (en) * 2011-12-09 2015-01-05 ジェイディーエス ユニフェイズ コーポレーションJDS Uniphase Corporation Varying the beam parameter product of the laser beam
US9823422B2 (en) 2011-12-09 2017-11-21 Lumentum Operations Llc Varying beam parameter product of a laser beam
JP6419363B1 (en) * 2017-10-11 2018-11-07 株式会社レフ・テクノロジー Treatment device
WO2019073556A1 (en) * 2017-10-11 2019-04-18 株式会社レフ・テクノロジー Treatment device
WO2020241136A1 (en) * 2019-05-29 2020-12-03 パナソニックIpマネジメント株式会社 Laser machining device and laser machining method using same
WO2020241137A1 (en) * 2019-05-29 2020-12-03 パナソニックIpマネジメント株式会社 Laser machining device and laser machining method using same
JPWO2020241136A1 (en) * 2019-05-29 2020-12-03
JPWO2020241137A1 (en) * 2019-05-29 2020-12-03
JPWO2020241138A1 (en) * 2019-05-29 2020-12-03
WO2020241138A1 (en) * 2019-05-29 2020-12-03 パナソニックIpマネジメント株式会社 Laser machining device and laser machining method using same
CN113555760A (en) * 2021-09-22 2021-10-26 中国工程物理研究院激光聚变研究中心 System and method for dynamically regulating and controlling optical fiber laser mode

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