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公开(公告)号：DE69232039T2
公开(公告)日：2002-06-27
申请号：DE69232039
申请日：1992-05-13
Applicant: SONY CORP
Inventor： MASUDA HISASHI , OHSATO KIYOSHI , FUKUMOTO ATSUSHI
IPC: G02F1/37 , H01S3/02 , H01S3/04 , H01S3/042 , H01S3/06 , H01S3/0941 , H01S3/101 , H01S3/109 , H01S3/131 , H01S3/094
Abstract: A laser light generating apparatus comprises a light source (1) for generating an exciting light beam, a condenser lens (2) for converging the exciting light beam from the light source (1), a laser medium (5) for generating a laser light of first wavelength by the radiation of the exciting light beam supplied thereto through the condenser lens (2), a nonlinear optical crystal element (6) for generating a second laser light by the radiation of the first laser light generated from the laser medium (5), a pair of reflecting means (7, 3) for constituting a laser resonator (9) together with at least the laser medium (5) and the nonlinear optical crystal element (6), a deflecting element (21) for deflecting an optical axis of the second laser light emitted from reflecting means (7) provided at the emitting side of the pair of reflecting means, detecting means (22) for detecting a part of a light beam output from reflecting means (7) disposed at the output side of the pair of reflecting means, control means (23 to 25) for controlling the light source (1) on the basis of a detected output from the detecting means (22) and a housing (11) for housing a base on which there are disposed at least the light source (1), the condenser lens (2), the laser medium (5) the nonlinear optical crystal element (6), the deflecting element (21) and the detecting means (22).
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公开(公告)号：DE69201257D1
公开(公告)日：1995-03-09
申请号：DE69201257
申请日：1992-04-08
Applicant: SONY CORP
Inventor： MASUDA HISASHI , KANEDA YUSHI
Abstract: A laser beam generating apparatus which is easy to manufacture and simple in adjusting operation. The laser beam generating apparatus comprises a light source (1) having a narrow active layer for generating pumping laser beam, a laser medium (5) for receiving the pumping laser beam to form a heat lens (5a) therein and generate fundamental wave laser beam, a non-linear optical crystal element (6) having a face (6a) inclined with respect to an optical axis (LA1) of the fundamental wave laser beam for receiving the fundamental wave laser beam to generate secondary harmonic laser beam, a quater wavelength plate (4) for suppressing coupling between two polarization modes of the fundamental wave laser beam, and a pair of planar reflecting means (11, 12) for reflecting the fundamental wave laser beam back into the laser medium (5). The laser medium (5), non-linear optical crystal element (6), quarter length plate (4) and planar reflecting means (11, 12) cooperate to constitute a light resonator (9). The optical axis (LA2) of the pumping laser beam is adjusted in a direction perpendicular to the optical axis (LA1).
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公开(公告)号：EP1975681A1
公开(公告)日：2008-10-01
申请号：EP08003897
申请日：2008-03-03
Applicant: SONY CORP
Inventor： MASUDA HISASHI
CPC classification number: G02F1/353 , G02F1/0121 , G02F2001/3507 , G02F2203/15
Abstract: A laser light generating apparatus (1) includes a laser light source (2), a phase-modulator (4), a signal generating unit (3) configured to generate a modulation signal applied to the phase-modulator, a first external resonator (6), a second external resonator (5) disposed at the stage succeeding the first external resonator, nonlinear optical elements (7,10) each provided in the external resonators configured to implement wavelength conversion, an optical path length varying unit (18) for varying the optical path length of each of the external resonators, and a control circuit (19) having a negative feedback arrangement configured to obtain error signals for each of the external resonators, and configured to control the optical path length varying unit using the error signals according to FM sideband method. In the laser light generating apparatus, the external resonators are each held simultaneously in a resonance state by setting the frequency of the modulation signal and by controlling the optical path length of each of the external resonators.
Abstract translation: 激光发生装置（1）包括激光光源（2），相位调制器（4），被配置为产生施加到相位调制器的调制信号的信号产生单元（3），第一外部谐振器 6），设置在第一外部谐振器之后的级的第二外部谐振器（5），每个设置在被配置为实现波长转换的外部谐振器中的非线性光学元件（7,10），用于 改变每个外部谐振器的光路长度，以及具有负反馈布置的控制电路（19），其被配置为获得每个外部谐振器的误差信号，并且被配置为使用误差信号来控制光程长度变化单元 根据FM边带方法。 在激光发生装置中，通过设定调制信号的频率，并且通过控制每个外部谐振器的光路长度，将外部谐振器各自同时保持在谐振状态。
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公开(公告)号：EP1465302A4
公开(公告)日：2006-01-11
申请号：EP03799129
申请日：2003-09-25
Applicant: SONY CORP
Inventor： MASUDA HISASHI
CPC classification number: H01S3/0627 , H01S3/0405 , H01S3/0604 , H01S3/0612 , H01S3/08 , H01S3/08072 , H01S3/101 , H01S3/1026 , H01S3/113
Abstract: A laser beam generator which improves the stability against vibration and change with time and reduces influence of temperature change on a resonator. The laser beam generator (1) includes a pumping light source (2) for generating pumping light of a continuous wave and a solid laser resonator (4) utilizing thermal lens effect caused by produced heat at the pumping position. The solid laser resonator comprises a laser medium (4a), a saturable absorber (4b), an intermediate medium (4c), and a reflecting means (4d). Combining the substrate of the laser medium (4a) and that of the saturable absorber (4b) into one unit leads to reduction in vibration influence. A structure substantially immune to thermal influence of temperature change without the need for a method for selecting the operating point by using temperature change is used. With respect to the positional relation between the pumping optical system and the resonator, they are moved relatively to adjust the optical path length of the resonator, and thereby a stable operating point can be selected.
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公开(公告)号：DE69212282T2
公开(公告)日：1997-02-20
申请号：DE69212282
申请日：1992-11-20
Applicant: SONY CORP
Inventor： MASUDA HISASHI
Abstract: An optical element manufacturing method comprises steps of: preparing a wafer (31) having opposite surfaces the extension of which intersecting each other at a predetermined angle ( alpha ); irradiating the wafer with a laser beam (21) to form fringes on the wafer and displaying the fringes on a display (27) for observation; determining cutting lines on the wafer with reference to the positions of the fringes; and cutting the wafer along the cutting lines to obtain a plurality of optical elements. By using method mentioned above, a nonlinear optical crystal element having an inclined plane can be produced in quantities.
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Patent Agency Ranking
公开(公告)号：DE69201257T2
公开(公告)日：1995-08-10
申请号：DE69201257
申请日：1992-04-08
Applicant: SONY CORP
Inventor： MASUDA HISASHI , KANEDA YUSHI
Abstract: A laser beam generating apparatus which is easy to manufacture and simple in adjusting operation. The laser beam generating apparatus comprises a light source (1) having a narrow active layer for generating pumping laser beam, a laser medium (5) for receiving the pumping laser beam to form a heat lens (5a) therein and generate fundamental wave laser beam, a non-linear optical crystal element (6) having a face (6a) inclined with respect to an optical axis (LA1) of the fundamental wave laser beam for receiving the fundamental wave laser beam to generate secondary harmonic laser beam, a quater wavelength plate (4) for suppressing coupling between two polarization modes of the fundamental wave laser beam, and a pair of planar reflecting means (11, 12) for reflecting the fundamental wave laser beam back into the laser medium (5). The laser medium (5), non-linear optical crystal element (6), quarter length plate (4) and planar reflecting means (11, 12) cooperate to constitute a light resonator (9). The optical axis (LA2) of the pumping laser beam is adjusted in a direction perpendicular to the optical axis (LA1).
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公开(公告)号：CA2089615A1
公开(公告)日：1993-08-21
申请号：CA2089615
申请日：1993-02-16
Applicant: SONY CORP
Inventor： MASUDA HISASHI , KANEDA YUSHI
Abstract: A laser light beam generating apparatus includes a laser diode, a laser medium, a non-linear optical crystal element, reflecting mirrors, a deflecting mirror, a temperature-control device and a case. The laser diode emits at least one pumping laser light beam. The laser medium is excited by the pumping laser light beam from the laser diode. The non-linear optical crystal element is arranged in outputted light path of the pumping laser light beam from the laser diode. The reflecting mirrors constitute a resonator with the laser medium and the non-linear optical crystal element. The deflecting mirror deflects the light path of the light beam from the resonator. The temperature-control device controls the temperature of the laser diode and the resonator. The case houses the laser diode, the laser medium, the non-linear optical crystal element, the reflecting mirrors, the deflecting mirror, the temperature-control device.
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公开(公告)号：DE69232039D1
公开(公告)日：2001-10-11
申请号：DE69232039
申请日：1992-05-13
Applicant: SONY CORP
Inventor： MASUDA HISASHI , OHSATO KIYOSHI , FUKUMOTO ATSUSHI
IPC: G02F1/37 , H01S3/02 , H01S3/04 , H01S3/042 , H01S3/06 , H01S3/0941 , H01S3/101 , H01S3/109 , H01S3/131 , H01S3/094
Abstract: A laser light generating apparatus comprises a light source (1) for generating an exciting light beam, a condenser lens (2) for converging the exciting light beam from the light source (1), a laser medium (5) for generating a laser light of first wavelength by the radiation of the exciting light beam supplied thereto through the condenser lens (2), a nonlinear optical crystal element (6) for generating a second laser light by the radiation of the first laser light generated from the laser medium (5), a pair of reflecting means (7, 3) for constituting a laser resonator (9) together with at least the laser medium (5) and the nonlinear optical crystal element (6), a deflecting element (21) for deflecting an optical axis of the second laser light emitted from reflecting means (7) provided at the emitting side of the pair of reflecting means, detecting means (22) for detecting a part of a light beam output from reflecting means (7) disposed at the output side of the pair of reflecting means, control means (23 to 25) for controlling the light source (1) on the basis of a detected output from the detecting means (22) and a housing (11) for housing a base on which there are disposed at least the light source (1), the condenser lens (2), the laser medium (5) the nonlinear optical crystal element (6), the deflecting element (21) and the detecting means (22).
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公开(公告)号：DE69212282D1
公开(公告)日：1996-08-22
申请号：DE69212282
申请日：1992-11-20
Applicant: SONY CORP
Inventor： MASUDA HISASHI
Abstract: An optical element manufacturing method comprises steps of: preparing a wafer (31) having opposite surfaces the extension of which intersecting each other at a predetermined angle ( alpha ); irradiating the wafer with a laser beam (21) to form fringes on the wafer and displaying the fringes on a display (27) for observation; determining cutting lines on the wafer with reference to the positions of the fringes; and cutting the wafer along the cutting lines to obtain a plurality of optical elements. By using method mentioned above, a nonlinear optical crystal element having an inclined plane can be produced in quantities.
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公开(公告)号：AU659270B2
公开(公告)日：1995-05-11
申请号：AU3287593
申请日：1993-02-08
Applicant: SONY CORP
Inventor： MASUDA HISASHI , KANEDA YUSHI
Abstract: The apparatus includes a laser diode (11) a laser medium (17), a non-linear optical crystal element (18), reflecting mirrors (16,19), a deflecting mirror (22), a temperature-control device (24) and a case (31). The laser diode emits at least one pumping laser light beam. The laser medium is excited by the pumping laser light beam from the laser diode. The non-linear optical crystal element is arranged in the ouputted light path of the pumping laser light beam from the laser diode. The reflecting mirrors constitute a resonator (20) with the laser medium and the non-linear optical crystal element. The deflecting mirror deflects the light path of the light beam from the resonator. The temperature-control device controls the temperature of the laser diode and the resonator. The case (31) houses the laser diode, the laser medium, the non-linear optical crystal element, the reflecting mirrors, the deflecting mirror, the temperature-control device.
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