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1. 发明专利

JPH1065237A SOLID-STATE LASER DEVICE 失效
公开(公告)号：JPH1065237A
公开(公告)日：1998-03-06
申请号：JP22256996
申请日：1996-08-23
申请人： MITSUBISHI CABLE IND LTD , MITSUBISHI MATERIALS CORP
发明人： MIYAKE KAZUYUKI , TANIGUCHI KOICHI , TADATOMO KAZUYUKI , SHIRAISHI HIROYUKI
IPC分类号： H01S3/08 , H01S3/094 , H01S3/16
摘要： PROBLEM TO BE SOLVED: To provide a small solid-state laser device which is capable of efficiently projecting a blue laser beam and suitable for an light source such as an optical pickup. SOLUTION: A solid-state laser device is equipped with an exciting light source 1, a laser active medium 2, and a pair of resonator mirrors 3a and 3b. An exciting light source 1 is capable of supplying exciting light rays of one or more wavelengths selected out of 810 to 850nm, 970 to 990nm. The laser active medium 2 is composed of a Tm-containing chloride crystal 2a and a Pr, Yb-containigng fluoride glass or oxide glass 2b which is provided enveloping the chloride crystal 2a. The pair of resonator mirrors 3a and 3b are capable of trapping light rays of first wavelength which Pr and Yb emit, making exciting light rays longer in wavelengths between them and enabling light rays of second wavelength which the Tm emits, making the light rays of first wavelength longer in wavelengths for oscillating laser rays and projected as laser rays.

2. 发明专利

JPH1065257A LASER ACTIVE MEDIUM 失效
公开(公告)号：JPH1065257A
公开(公告)日：1998-03-06
申请号：JP22263596
申请日：1996-08-23
申请人： MITSUBISHI CABLE IND LTD , MITSUBISHI MATERIALS CORP
发明人： MIYAKE KAZUYUKI , TANIGUCHI KOICHI , TADATOMO KAZUYUKI , SHIRAISHI HIROYUKI
IPC分类号： H01S3/14
摘要： PROBLEM TO BE SOLVED: To form a laser active medium, which can be utilized in a stable state in the air using a rare earth-containing chloride material having deliquescence, and to provide the laser active medium. SOLUTION: A rare earth-containing chloride 2 is used as a laser active medium in a state that the chloride 2 is formed in a container 1. The container 1 consists of quartz or optical glass and has at least one pair of plane parts 1a and 1b, which are oppose to each other, holding the chloride 2 in the interior of the container 1 between them and are parallel to each other. The wall thickness of these plane parts 1a and 1b is formed even. It is preferable to impart a coating film, which has a reflecting and reflection-reducing function, to the outer side surfaces and/or inner side surfaces of the one pair of the plane parts 1a and 1b of the container 1, which are parallel to each other.

3. 发明专利

JPH1065260A SOLID-STATE LASER 失效
公开(公告)号：JPH1065260A
公开(公告)日：1998-03-06
申请号：JP22283996
申请日：1996-08-23
申请人： MITSUBISHI CABLE IND LTD , MITSUBISHI MATERIALS CORP
发明人： MIYAKE KAZUYUKI , TADATOMO KAZUYUKI , TANIGUCHI KOICHI , SHIRAISHI HIROYUKI
IPC分类号： H01S3/106 , H01S3/16
摘要： PROBLEM TO BE SOLVED: To provide a multicolored solid-state laser, which switches easily to a plurality of kinds of wavelengths for laser beams and can output the laser beams, while the structure of the solid laser is compact and simple. SOLUTION: A rare earth-containing chloride, which makes a wavelength upward conversion light L1 from an excitation light source 1 and can emit the light L1 as a plurality of kinds of peak wavelengths of lights, is used as a laser active medium 2. A filter 4a, which transmits selectively the specified one peak wavelength of the light only from among the plurality of kinds of the peak wavelengths of these lights, is arranged on an optical path between the medium 2 and the optical oscillator mirror on one side of optical oscillator mirrors 3a and 3b, and the specified one peak wavelength of the light L2 is selected and a laser oscillation is made to take place for outputting. It is preferable to use a filter unit 6 of a structure, wherein filters are prepared by the number of lights of peak wavelengths to be selected and only one of the filters can be arranged in a freely exchangeable state on the optical path from among these filters.

4. 发明专利

JPH1065259A SOLID-STATE LASER 失效
公开(公告)号：JPH1065259A
公开(公告)日：1998-03-06
申请号：JP22255196
申请日：1996-08-23
申请人： MITSUBISHI CABLE IND LTD , MITSUBISHI MATERIALS CORP
发明人： MIYAKE KAZUYUKI , TANIGUCHI KOICHI , TADATOMO KAZUYUKI , SHIRAISHI HIROYUKI
IPC分类号： H01S3/08 , H01S3/094 , H01S3/16
摘要： PROBLEM TO BE SOLVED: To provide a small-sized solid-state laser, which can emit a blue laser beam at high efficiency and is suitable for light source, such as a photopickup. SOLUTION: A solid laser is constituted of an excitation light source 1, a laser active medium 3 and one pair of resonator mirrors 4a and 4b. In this case, the light source 1 feeds excitation lights having more than one kind of wavelengths, which are chosen from among wavelengths of 790 to 840nm, 965 to 985nm and 1500 to 1550nm. The medium 3 consists of a chloride crystal, containing both of Er and Tm. The one pair of the resonator mirrors 4a and 4b are provided in the holding state of the medium 3 between them, a first wavelength of light, which is emitted by making a wavelength upward conversion the excitation lights by the Er in the medium 3, can be confined between these mirrors 4a and 4b and moreover, a second wavelength of light, which is emitted by making a wavelength upward converting the first wavelength of the light by the Tm, is made to take place a laser oscillation and can be emitted as a laser beam.

5. 发明专利

JPH1065238A SOLID-STATE LASER DEVICE 失效
公开(公告)号：JPH1065238A
公开(公告)日：1998-03-06
申请号：JP22257696
申请日：1996-08-23
申请人： MITSUBISHI CABLE IND LTD , MITSUBISHI MATERIALS CORP
发明人： MIYAKE KAZUYUKI , TADATOMO KAZUYUKI , TANIGUCHI KOICHI , SHIRAISHI HIROYUKI
IPC分类号： H01S3/08 , H01S3/094
摘要： PROBLEM TO BE SOLVED: To provide a multicolored solid-state laser device, which is capable of outputting laser rays of various wavelengths by easily converting them from one wavelength to another, even though it is compact and simple in structure. SOLUTION: A solid-state laser device is made to serve as a longer wavelength conversion laser device and equipped with an exciting light source 1, a laser active medium 2 which is formed of rare earth-containing chloride and emits lights of various wavelengths of a plurality of peak values by converting L1, emitted from the exciting light source 1 longer in length, and an optical resonator device 6. The optical resonator device 6 is equipped with two or more pairs of reflectors 3, 4a and 3, 4b which sandwich the laser active medium 2 between them on an optical path where light emitted from the laser active medium 2 oscillates laser rays. One of the pairs is disposed in such a manner so that is can be freely replaced with the other pair on an optical path where laser rays can be oscillated. Each pair of the reflectors selectively oscillates only the laser rays of its intrinsic peak wavelength.

6. 发明专利

JP2003050412A Method and system for light wavelength conversion 有权
标题翻译：用于光波长转换的方法和系统
公开(公告)号：JP2003050412A
公开(公告)日：2003-02-21
申请号：JP2001389862
申请日：2001-12-21
申请人： Mitsubishi Materials Corp , 三菱マテリアル株式会社
发明人： SEKINE ICHIRO , SHIRAISHI HIROYUKI , KATO HIROKAZU , MASADA GENTA , WATANABE NORIKO
IPC分类号： G02F1/37
摘要： PROBLEM TO BE SOLVED: To provide a method and system for light wavelength conversion which make it possible to manufacture an all-solid ultraviolet laser oscillator which stably attains high conversion efficiency and is practical by using nonlinear optical crystal, e.g. single-crystal lithium tetraborate LB4. SOLUTION: The system is equipped with a green laser oscillator 10 which oscillates coherent light of 532 nm in wavelength and single-crystal lithium tetraborate LB4 (hereinafter LB4) crystal box 23 where the light from the green laser oscillator 10 is made incident as the incident light. In an LB4 crystal box 23, LB4 which converts the incident light and emits projection light of 266 nm is arranged satisfying a phase matching angle and a heating device which heats and holds this LB4 crystal at 200 to 600 deg.C is incorporated.
摘要翻译：要解决的问题：提供一种用于光波长转换的方法和系统，其使得可以制造稳定地获得高转换效率并且通过使用非线性光学晶体，例如实施例的实用的全固态紫外激光振荡器。单晶四硼酸锂LB4。解决方案：该系统配备有一个绿色激光振荡器10，其振荡波长为532nm的相干光，并将来自绿色激光振荡器10的光作为事件入射的单晶四硼酸锂LB4（以下称为LB4）晶体盒23入射光。在LB4晶体盒23中，转换入射光并发射266nm的投影光的LB4被配置为满足相位匹配角度，并且加入并保持该200nm至600℃的该LB4晶体的加热装置。

7. 发明专利

JP2002350912A OPTICAL WAVELENGTH CONVERSION METHOD AND OPTICAL WAVELENGTH CONVERSION SYSTEM 失效
公开(公告)号：JP2002350912A
公开(公告)日：2002-12-04
申请号：JP2001160948
申请日：2001-05-29
申请人： MITSUBISHI MATERIALS CORP
发明人： SEKINE ICHIRO , SHIRAISHI HIROYUKI , KATO HIROKAZU , MASADA GENTA , WATANABE NORIKO
IPC分类号： G02F1/37
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength conversion method and optical wavelength conversion system capable of manufacturing a fully solid-state UV laser oscillator which stably achieves high conversion efficiency and can be put to practical use by using a single crystalline lithium tetra borate LB4 which is nonlinear optical crystal. SOLUTION: This system has a green laser oscillator 10 which oscillates coherent light of a wavelength 532 nm and an LB4 crystal box 23 on which the light from the green laser oscillator 10 is made incident as incident light. The single crystalline lithium tetra borate LB4 which converts the incident light and emits exit light of 266 nm is arranged in the LB4 crystal box 23 so as to satisfy a phase matching angle. A heater for heating and holding the LB4 at 200 to 600 deg.C is incorporated.

8. 发明专利

JPH11265008A METHOD AND DEVICE FOR GENERATING OPTICAL HIGHER-HARMONIC WAVES 失效
公开(公告)号：JPH11265008A
公开(公告)日：1999-09-28
申请号：JP6739298
申请日：1998-03-17
申请人： MITSUBISHI MATERIALS CORP
发明人： SHIRAISHI HIROYUKI , ISHIWATARI MASAHARU , OMATSU TAKASHIGE
IPC分类号： H01S3/109 , G02F1/37
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for light higher-harmonic generation which can obtain higher harmonics with high conversion efficiency. SOLUTION: In this optical higher-harmonic waves generating method, a laser beam 2 is made incident from one end side of nonlinear optical crystals 5A and 5B which are arranged in series, and transmitted through the nonlinear optical crystals, which generate higher harmonic optical waves 4A and 4B; and only the higher harmonic optical waves generated by the nonlinear optical crystals are separated from the laser beam by the nonlinear optical crystals through spectrographs 6A and 6B and taken out.

9. 发明专利

JPH1051059A LASER OSCILLATOR 失效
公开(公告)号：JPH1051059A
公开(公告)日：1998-02-20
申请号：JP20836596
申请日：1996-08-07
申请人： MITSUBISHI MATERIALS CORP
发明人： KOMATSU RYUICHI , SUGAWARA TAMOTSU , TAKAHASHI MASAKUNI , SHIRAISHI HIROYUKI
IPC分类号： G02F1/35 , G02F1/355 , G02F1/37 , H01S3/109
摘要： PROBLEM TO BE SOLVED: To perform the wavelength conversion of a laser beam with high efficiency, and perform such short wavelength conversion as to be equivalent to an excimer laser, and get a laser beam of desired wavelength from visible light to ultraviolet ray region with extremely high output and besides with good coherence. SOLUTION: This device is constituted, by arranging a total reflector 12 on one side of a laser medium 11 and a reflector 13 for output on the other side of the laser medium 11. In this case, one or two or more lithium tetraboate single crystals 15 are installed either between the total reflector 12 and the laser medium 11 or between the reflector 13 for output and the laser medium 11, or both.

10. 发明专利

JPH09326523A LASER MEDIUM AND ITS MANUFACTURE 失效
公开(公告)号：JPH09326523A
公开(公告)日：1997-12-16
申请号：JP20618196
申请日：1996-08-05
申请人： MITSUBISHI MATERIALS CORP
发明人： ISHIWATARI MASAHARU , HANAUE YASUHIRO , SHIRAISHI HIROYUKI , OKUBO AKIRA
IPC分类号： H01S3/08 , H01S3/14
摘要： PROBLEM TO BE SOLVED: To provide an up conversion laser which is easily operated even in the atmosphere by providing a structure where the transmission face of a phosphor of a hygroscopic chloride crystal or chloride glass is sandwiched between transparent boards in parallel. SOLUTION: A structure where the transparent face of the phosphor of hygroscopic chloride crystal or chloride glass is sandwiched between the transparent boards 2 and 3 in parallel is provided. Then, liquid 5 having a refraction factor between the refraction factor of the phosphor 1 and the refraction factor of the transparent boards 2 and 3 is provided between the phosphor 1 and the transparent boards 2 and 3. The outer peripheries of the phosphor 1, the transparent boards 2 and 3 and the other transparent boards are coated with a glass material. The whole glass material 4 is fixed with resin in a state where liquid 5 is provided between the boards by removing a part covered with the transparent boards 2 and 3 or the whole is stored in a holder so as to fix it. Thus, the up conversion laser which is easily handled even in the atmosphere can be obtained.

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