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公开(公告)号：CA2090591A1
公开(公告)日：1993-09-03
申请号：CA2090591
申请日：1993-02-26
Applicant: SONY CORP
Inventor： EGUCHI NAOYA , OKA MICHIO
Abstract: A laser light beam generating apparatus includes at least one light beam source, first and second reflectors, a non-linear optical crystal element and an actuator. The light beam source emits a light beam. The non-linear optical crystal element is provided between the first reflector and the second reflector. A light beam emitted from the light beam source is incident on the non-linear optical crystal element through the first reflector. The actuator actuates at least one of the first and second reflectors along an optical axis of the light beam emitted from the light beam source.
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公开(公告)号：JP2012248745A
公开(公告)日：2012-12-13
申请号：JP2011120501
申请日：2011-05-30
Inventor： OKA MICHIO , YOSHIDA HIROSHI , TANAKA KENJI
CPC classification number: G11B7/126 , G11B7/127 , G11B7/1356 , G11B7/1372 , G11B7/1378 , H01S5/0657 , H01S5/1064 , H01S5/50
Abstract: PROBLEM TO BE SOLVED: To provide a light source device as an MOPA (master oscillator power amplifier) which includes an MLLD (mode locked laser diode) and an SOA (semiconductor optical amplifier), causes an exit beam to have only one peak, and suppresses variations in the peak position.SOLUTION: The width in a lateral direction of a waveguide on an incident side of an SOA 14 is set such that a horizontal lateral mode of the waveguide on the incident side of the SOA becomes multiple modes (so as to be larger than the width in a lateral direction of a waveguide on an exit side of an MLLD). A magnification of incident light from the MLLD 10 to the SOA is converted such that a basic mode (single mode) is selectively excited in optical coupling on the incident side of the SOA. The light confinement in the basic mode defined by the width of the waveguide on the incident side of the SOA is increased. It is ensured that only one peak appears in the light intensity distribution of the SOA output light. The magnification of incident light from the MLLD is converted (the spot size of incident light to the SOA is enlarged). The light density in the waveguide of the SOA is reduced. Variations in the peak of the exit beam are suppressed.
Abstract translation: 要解决的问题：为了提供一种作为包括MLLD（锁模激光二极管）和SOA（半导体光放大器）的MOPA（主振荡器功率放大器）的光源装置，使出射光束仅具有一个 峰值，并抑制峰值位置的变化。 解决方案：SOA 14的入射侧的波导的横向的宽度被设定为使得SOA的入射侧的波导的水平横向模式变为多个模式（从而大于 在MLLD的出口侧的波导的横向的宽度）。 转换从MLLD10到SOA的入射光的放大倍数，使得在SOA的入射侧的光耦合中选择性地激发基本模式（单模）。 在SOA的入射侧的波导宽度限定的基本模式中的光限制增加。 确保在SOA输出光的光强度分布中仅出现一个峰值。 来自MLLD的入射光的放大率被转换（入射到SOA的入射光的光斑尺寸被扩大）。 SOA的波导中的光密度降低。 抑制出射光束峰值的变化。 版权所有（C）2013，JPO＆INPIT
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33.发明专利
公开(公告)号：JP2009182353A
公开(公告)日：2009-08-13
申请号：JP2009120322
申请日：2009-05-18
Inventor： KIMURA KAORU , OKA MICHIO
IPC: H01S3/081 , G02F1/37 , G03B21/14 , H01L21/027
Abstract: PROBLEM TO BE SOLVED: To achieve uniformization and stabilization of output light of a laser light source device including a resonator having a light path along which linear fundamental wave light is reflected. SOLUTION: The laser light source device includes: an excitation light source 1; and a pair of resonator mirrors 5 and 11. A resonator 30 constituted of the resonator mirrors has at least a laser medium 6 and a wavelength conversion element 10 therein. The excitation light source 1 excites the laser medium 6 with a lateral mode pattern, and the linear fundamental wave light obtained through the oscillation of the laser medium 6 is irradiated to the wavelength conversion element 10, thereby a linear converted wave light is output from it. A reflection part 9 for reflecting the light path is arranged in the resonator 30, and the above respective components are arranged on different planes 40a and 40b on a support 40, respectively, through which a longitudinal direction of the linear fundamental wave light is set approximately orthogonal to a light incident surface of the reflection part 9. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 解决的问题：为了实现包括具有反射线性基波光的光路的谐振器的激光光源装置的输出光的均匀化和稳定化。
解决方案：激光光源装置包括：激发光源1; 和一对谐振镜5和11.由谐振镜构成的谐振器30至少具有激光介质6和波长转换元件10。 激发光源1以横模式激发激光介质6，并且通过激光介质6的振荡获得的线性基波光照射到波长转换元件10，从而从其输出线性转换波光 。 用于反射光路的反射部分9布置在谐振器30中，并且上述各个部件分别布置在支撑件40上的不同平面40a和40b上，线性基本波长的光线的纵向方向通过该支撑 与反射部分9的光入射表面正交。版权所有：（C）2009，JPO＆INPIT
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公开(公告)号：JP2008153526A
公开(公告)日：2008-07-03
申请号：JP2006341548
申请日：2006-12-19
Inventor： KIMURA KAORU , OKA MICHIO
CPC classification number: H01S3/109 , H01S3/08036 , H01S3/08054 , H01S3/0815 , H01S3/0816 , H01S3/094069 , H01S3/0941 , H01S3/09415
Abstract: PROBLEM TO BE SOLVED: To achieve the equalization and the stabilization of output light in a laser light source device comprising a resonator having an optical path in which a linear fundamental wave is folded back. SOLUTION: A laser light source device has an excitation light source 1 and a pair of resonator mirrors 5 and 11. At least a laser medium 6 and a wavelength converting element 10 are provided in a resonator 30 constituted by the resonator mirrors. The laser medium 6 is excited from the excitation light source 1 with light of a transverse mode pattern, the wavelength converting element 10 is irradiated with a linear fundamental wave obtained by the oscillation of the laser medium 6, and consequently a linear converting wave is output. One or more reflective portions 8 and 9 for folding back an optical path are provided in the resonator 30. The longitudinal direction of the linear fundamental wave is arranged approximately vertical to the incident surfaces of the reflective portions 8 and 9. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：为了实现包括具有其中线性基波被折回的光路的谐振器的激光源装置中的输出光的均衡和稳定。 解决方案：激光光源装置具有激发光源1和一对谐振镜5和11.至少一激光介质6和波长转换元件10设置在谐振器反射镜构成的谐振器30中。 激光介质6用激光光源1以横模式的光激发，用激光介质6的振荡获得的线性基波照射波长转换元件10，从而输出线性变换波 。 在谐振器30中设置有用于折回光路的一个或多个反射部分8和9.线性基波的纵向方向被布置成大致垂直于反射部分8和9的入射表面。版权所有： （C）2008，JPO＆INPIT
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35.发明专利Method for manufacturing optical fiber and method for manufacturing optical fiber device 审中-公开制造光纤的方法和制造光纤设备的方法
公开(公告)号：JP2005121902A
公开(公告)日：2005-05-12
申请号：JP2003356648
申请日：2003-10-16
Inventor： FUKUMOTO ATSUSHI , WATANABE MAKOTO , OKA MICHIO
Abstract: PROBLEM TO BE SOLVED: To overcome the problem that in the case of a fiber for laser amplification comprising a light-propagating medium, in particular, a double clad fiber having a primary clad disposed around the core and further having a low refractive index region disposed as extended around the clad and in the longitudinal direction of the fiber, for example, a so-called holey fiber having holes as the low refractive index region, when the end face of the fiber is subjected to optical polishing and then to heat treatment, the end face of the low refractive index region is exposed to an external fluid, which induces changes in the refractive index of the low refractive index region (for example, if the low refractive index region is composed of holes, water flows into or is adsorbed to the holes by a capillary phenomenon and badly deteriorates the amplification characteristics of the fiber). SOLUTION: After the end face of the low refractive index region is sealed, the fiber is cut and polished to manufacture a fiber. By polishing, the end face of the fiber makes a given angle with respect to the plane perpendicular to the longitudinal direction of the fiber. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 解决的问题为了克服在包括光传播介质的激光放大光纤的情况下，特别是具有设置在芯周围的初级包层并且还具有低折射率的双包层光纤的问题 折射率区域设置成围绕包层延伸并且在纤维的纵向方向上延伸，例如，当纤维的端面进行光学抛光时，例如具有作为低折射率区域的孔的所谓的多孔纤维，然后到 热处理时，低折射率区域的端面暴露于外部流体，这导致低折射率区域的折射率的变化（例如，如果低折射率区域由孔组成，则水流入 或者通过毛细管现象吸附到孔，并且严重劣化纤维的放大特性）。 解决方案：在低折射率区域的端面被密封之后，将纤维切割并抛光以制造纤维。 通过抛光，纤维的端面相对于垂直于纤维的纵向方向的平面形成给定的角度。 版权所有（C）2005，JPO＆NCIPI
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Patent Agency Ranking36.发明专利
公开(公告)号：JP2005093817A
公开(公告)日：2005-04-07
申请号：JP2003326624
申请日：2003-09-18
Inventor： FUKUMOTO ATSUSHI , WATANABE MAKOTO , OKA MICHIO
Abstract: PROBLEM TO BE SOLVED: To provide a fiber laser device capable of optical amplification at a relatively low output but also capable of a higher output, to provide a laser amplification method, and to provide an optical apparatus using them. SOLUTION: In this fiber laser device 30 having an optical amplification fiber 7 into which an exciting laser beam is injected for the amplification of a laser beam that needs to be amplified, a portion of the amplified laser beam outputted from the optical fiber 7 is split and the split portion is then inputted into the laser beam input end 7A where the laser beam to be amplified is inputted. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种能够在相对低的输出处进行光放大而且能够产生更高输出的光纤激光器件，以提供激光放大方法，并提供使用它们的光学装置。 解决方案：在具有光放大光纤7的光纤激光装置30中，注入激光激光束以放大需要放大的激光束，从光纤输出的放大激光束的一部分 7被分割，然后将分割部分输入到输入激光束的激光束输入端7A。 版权所有（C）2005，JPO＆NCIPI
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37.发明专利Optical fiber, optical fiber device, and method for manufacturing optical fiber 审中-公开光纤，光纤设备以及制造光纤的方法
公开(公告)号：JP2005084646A
公开(公告)日：2005-03-31
申请号：JP2003320115
申请日：2003-09-11
Inventor： FUKUMOTO ATSUSHI , WATANABE MAKOTO , OKA MICHIO
Abstract: PROBLEM TO BE SOLVED: To avoid degradation in characteristics due to sealing of end surfaces of low-refractive index regions by heating the end surface of an optical fiber and performing fusion sealing by an optical propagation medium and to achieve the efficient light introduction into the fiber by a lens effect obtained by formation of a curved surface convex to an outer side on the end surface of the fiber. SOLUTION: The most important characteristics are that the fiber is constituted by extending and arranging a number of the low-refractive index regions having the refractive index lower than that of the optical propagation medium into the optical propagation medium in a longitudinal direction, that the sealing of the end surfaces of the above low-refractive index regions is performed by the optical propagation medium and that the curved surface convex to the outer side is formed at the fiber end surface. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：为了避免由于通过加热光纤的端面并通过光传播介质进行熔融密封而导致的低折射率区域的端面密封导致的特性劣化并且实现有效的光引入 通过在纤维的端面上形成向外侧凸出的弯曲面而获得的透镜效果进入纤维。 解决方案：最重要的特征是通过将多个折射率低于光传播介质的折射率的低折射率区域的多个长度方向延伸并布置在光传播介质中来构成光纤， 上述低折射率区域的端面的密封由光传播介质进行，并且在光纤端面形成向外侧凸出的弯曲面。 版权所有（C）2005，JPO＆NCIPI
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38.发明专利
公开(公告)号：JP2004347991A
公开(公告)日：2004-12-09
申请号：JP2003146740
申请日：2003-05-23
Inventor： WATANABE MAKOTO , FUKUMOTO ATSUSHI , OKA MICHIO
CPC classification number: G02B6/02347 , G02B6/02338 , G02B6/3855
Abstract: PROBLEM TO BE SOLVED: To provide a photonic crystal fiber designed to solve various problems including infiltration of impurities by sealing the end face at the end of a fiber, and also to provide an optical controller, a projector, and a method for manufacturing the photonic crystal fiber. SOLUTION: The photonic crystal fiber is constituted such that a large number of holes are arranged with a regular cross sectional structure in the longitudinal direction of the fiber, that the end face of the fiber is fusion-sealed with a fusion material composed of glass having a lower softening temperature than that of the optical propagation material of the fiber, and that the fiber is connected to a ferrule with this fusion material. Consequently, degradation of optical characteristics can be avoided such as a large refractive index difference between the optical propagation medium and the holes, a high optical transmission efficiency and numerical aperture. In addition, entry of foreign matters into the holes can be avoided, as can a burning accident incidental to deviation of the ferrule. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2002062582A
公开(公告)日：2002-02-28
申请号：JP2000250375
申请日：2000-08-21
Applicant: SONY CORP
Inventor： SUGANUMA HIROSHI , OKA MICHIO
IPC: G02B5/30 , G02F1/1335 , G02F1/13357 , G03B21/00 , G03B21/14 , G09F9/00 , H04N5/74
Abstract: PROBLEM TO BE SOLVED: To display a high-quality picture by drastically reducing speckle noise. SOLUTION: After the spatial polarized light distribution of a laser beam emitted from a laser beam source 4 is converted with a polarized light distribution conversion means 5 so that the polarization directions of the beams made incident on the adjacent pixels of a spatial modulator 2 is orthogonal to each other, the laser beam whose spatial polarized light distribution is converted is made incident on the modulator 2, and the laser beam modulated by the modulator 2 is radiated to a screen 3 so as to display the picture on the screen 3.
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公开(公告)号：JPH10301153A
公开(公告)日：1998-11-13
申请号：JP10587697
申请日：1997-04-23
Applicant: SONY CORP
Inventor： OKA MICHIO
Abstract: PROBLEM TO BE SOLVED: To obtain homogeneous stabilized light output by preventing the resonator length and optical axis of a light source device from being fluctuated by vibration by respectively having a vibrationproof means by any combination of a wavelength converting part and a modulating part, and the wavelength converting part, the modulating part and an optical waveguide. SOLUTION: The light source device is constituted of the wavelength converting part 100 forming a second high harmonic wave from fundamental wave laser beam, the modulating part 300 spatially modulating the beam output, and the optical waveguide 400 propagating laser beam modulated to a desired optical device, a vibrationproof member 500 as the vibrationproof means and a base plate 501. The vibrationproof member 500 such as an air spring, a metallic spring and a rubber damper is fixed to the bottom part of the wavelength converting part 100 having a fundamental wave light source 11 and an external resonator 200, and the wavelength converting part 100 is placed on the base plate 501. Also, the modulating part 300 and the optical waveguide 400 are respectively mechanically separated, so that the vibration of components is prevented from being propagated.
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