公开(公告)号：JP2012137799A

公开(公告)日：2012-07-19

申请号：JP2012098068

申请日：2012-04-23

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI

IPC: G02F1/37

Abstract: PROBLEM TO BE SOLVED: To provide a small-sized laser beam generator capable of stably oscillating continuous light of a wavelength region of about 200 nm or less at high conversion efficiency.SOLUTION: The light of a wavelength λoutput from a first laser beam generator 10 and the light of a wavelength λoutput from a second laser beam generator 11 are supplied into a first resonator 13 and a second resonator 14, respectively, and the light of a wavelength λis generated by sum frequency blending of the two incident lights in a nonlinear optical element 15 included in both of the first resonator 13 and the second resonator 14. In this case, the lights of the wavelengths λ, λ, λare made incident on and emitted from the nonlinear optical element 15 in a mutually and spatially separated state, and they have mutually different light paths. The lights of the wavelengths λ, λare set so that their optical axes do not completely match with each other, and if the angle of incidence or the angle of emission of one of these lights is the Brewster angle, reflection loss is further reduced.

Abstract translation: 要解决的问题：提供能够以高转换效率稳定地振荡约200nm以下的波长区域的连续光的小型激光束发生器。 解决方案：从第一激光束发生器10输出的波长λ 1 的光和波长λ 2 < SB>从第二激光束发生器11输出的信号分别被提供到第一谐振器13和第二谐振器14中，波长λ 3 的光由和频率 将两个入射光混合在包括在第一谐振器13和第二谐振器14两者中的非线性光学元件15中。在这种情况下，波长λ 1 < λ 2 ，λ 3 在非线性光学元件15中以相互空间分离的状态入射和发射， 它们有相互不同的光路。 波长λ 1 ，λ 2 的光被设置为使得它们的光轴彼此不完全匹配， 如果这些灯之一的入射角或发射角是布鲁斯特角，则反射损失进一步降低。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010107661A

公开(公告)日：2010-05-13

申请号：JP2008278601

申请日：2008-10-29

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI ,  KUWAYAMA TETSURO ,  FURUDATE RYO

IPC: G02F1/37 ,  H01S3/109

Abstract: PROBLEM TO BE SOLVED: To provide a laser beam generator capable of reducing deterioration in output laser beam quality along with the lapse of time in comparison with a conventional one.
SOLUTION: Knife edges 153a and 153b in an external resonator 15 are constructed of dielectrics. In this way, change along the lapse of time caused by heat generated by laser beam absorption is reduced in the knife edges 153a and 153b. In the knife edges 153a and 153b, laser beam incidence surfaces (transmission surfaces) S1 and S21 and the like are formed into optical smooth surfaces not parallel to each other, and at least a part of incident laser beams (laser beams LB) to the optical smooth surfaces is refracted. In this way, deterioration along with the lapse of time due to scattered light can be reduced in an optical element (a wavelength conversion crystal 152 and the like) in the external resonator 15.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种与传统的激光束发生器相比能够减少输出激光束质量劣化以及随时间流逝的激光束发生器。

解决方案：外部谐振器15中的刀刃153a和153b由电介质构成。 以这种方式，在刀刃153a和153b中减少了由激光吸收产生的热引起的随时间推移的变化。 在刀刃153a和153b中，激光束入射面（透射面）S1，S21等形成为不平行的光学平滑面，至少一部分入射激光束（激光束LB） 光学平滑表面被折射。 以这种方式，在外部谐振器15中的光学元件（波长转换晶体152等）中，由于散射光而随时间的流逝的劣化可能降低。（C）2010，JPO＆INPIT

公开(公告)号：JP2010050389A

公开(公告)日：2010-03-04

申请号：JP2008215369

申请日：2008-08-25

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI

IPC: H01S3/06 ,  G02F1/37

Abstract: PROBLEM TO BE SOLVED: To provide a laser beam generator that stabilizes the laser beam of a wavelength band of ≤ about 200 nm, for example, and outputs the laser beam with a narrow wavelength width by sum frequency mixture. SOLUTION: The laser beam includes: a fiber laser light source 10 for output of a laser beam L1 of wavelength λ 1 by a double clad fiber containing erbium (Er) in a core; a fiber laser light source 11 for output of a laser beam L2 of wavelength λ 2 by a double clad fiber which containing ytterbium (Yb) or neodymium (Nd) in a core; external resonators 14A, 14B, 15A-15C; and a nonlinear optical element 17. The laser beam L1 is subjected to frequency conversion through external resonators 14A and 14B and the laser beam L2 is subjected to frequency conversion through external resonators 15A-15C. Both the beams are made incident on the nonlinear optical element 17 simultaneously, respectively, and a laser beam L3 of wavelength λ 3 is generated as a sum frequency. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：例如，提供使波长带的激光束稳定在例如约200nm的激光束发生器，并通过和频混合输出具有窄波长宽度的激光束。 解决方案：激光束包括：用于通过在芯中包含铒（Er）的双包层光纤输出波长λ 1 的激光束L1的光纤激光源10; 用于通过在芯中含有镱（Yb）或钕（Nd）的双包层光纤输出波长λ 2 的激光束L2的光纤激光源11; 外部谐振器14A，14B，15A-15C; 和非线性光学元件17.激光束L1通过外部谐振器14A和14B进行频率转换，激光束L2通过外部谐振器15A-15C进行频率转换。 两个光束分别同时入射在非线性光学元件17上，产生波长λ<3>的激光束L3作为和频。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008242270A

公开(公告)日：2008-10-09

申请号：JP2007085305

申请日：2007-03-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI

IPC: G02F1/37 ,  H01S3/10 ,  H01S3/109

CPC classification number: G02F1/353 ,  G02F1/0121 ,  G02F2001/3507 ,  G02F2203/15

Abstract: PROBLEM TO BE SOLVED: To achieve stable locking by using one modulation signal when generating desired laser light in accordance with an FM sideband method by using a plurality of external resonators. SOLUTION: A laser light generating apparatus 1 includes a laser light source 2, a phase-modulator 4, a signal generating unit 3 for applying a modulation signal applied to the phase-modulator, a plurality of external resonators 6 and 9. Nonlinear optical elements 7 and 10 are provided in the external resonators 6 and 9, and an optical path length varying means 18 for varying optical path lengths of respective external resonators 6 and 9 is provided. A control circuit 19 is formed which has a negative feedback arrangement configured to obtain error signals by using detection signals of photodetectors 14 and 15 receiving light from each of the external resonators 6 and 9 and configured to control resonator length by controlling the optical path length varying means 18 according to the FM sideband method. Then, a frequency of a modulation signal is set to a value resulting from averaging S/N of error signals obtained from respective external resonators, thereby stable locking of each external resonator is achieved. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：通过使用多个外部谐振器根据FM边带方法产生期望的激光，通过使用一个调制信号来实现稳定的锁定。 解决方案：激光产生装置1包括激光光源2，相位调制器4，用于施加施加到相位调制器的调制信号的信号产生单元3，多个外部谐振器6和9。 非线性光学元件7和10设置在外部谐振器6和9中，并且提供用于改变各个外部谐振器6和9的光程长度的光程长度变化装置18。 形成控制电路19，其具有负反馈布置，其被配置为通过使用接收来自每个外部谐振器6和9的光的光电检测器14和15的检测信号来获得误差信号，并且被配置为通过控制光路长度变化来控制谐振器长度 根据FM边带方法表示18。 然后，将调制信号的频率设定为从各个外部谐振器获得的误差信号的平均S / N得到的值，从而实现每个外部谐振器的稳定锁定。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007323022A

公开(公告)日：2007-12-13

申请号：JP2006156444

申请日：2006-06-05

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI ,  KUBOTA SHIGEO

IPC: G09F9/00 ,  G02F1/13357 ,  H01J9/20 ,  H01J11/02 ,  H01J11/22 ,  H01J11/24 ,  H01J11/34 ,  H01J11/44 ,  H01J61/35 ,  H01J63/04

Abstract: PROBLEM TO BE SOLVED: To provide a display device capable of surely preventing malfunction of various electronic equipment caused by unwanted infrared light radiated from a light emitting part of a light source.
SOLUTION: The display device (liquid crystal display device or the like) is equipped with: the light source (CCFL or the like) of which the light emitting part radiates visible light and infrared light; and a display surface from which the light radiated from this light source is made to exit, wherein a substance containing at least one kind of rare-earth elements selected from a group consisting of scandium, yttrium, lanthanum, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium is prepared between the light emitting part of the light source and the display surface, and/or on the display surface.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够可靠地防止由于从光源的发光部分照射的不期望的红外线引起的各种电子设备的故障的显示装置。 显示装置（液晶显示装置等）配备有：发光部照射可见光和红外光的光源（CCFL等）; 以及从该光源照射的光使显示面退出的显示面，其中含有选自钪，钇，镧，镨，钕，prom，，钐等至少一种稀土元素的物质 在光源的发光部分和显示面之间和/或显示面上制备铕，钆，铽，镝，钬，铒，ium，镱和镥。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2004311719A

公开(公告)日：2004-11-04

申请号：JP2003103258

申请日：2003-04-07

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MORITA MASAYUKI ,  HAYASHIBE KAZUYA ,  MASUDA HISASHI

IPC: H01S3/086

Abstract: PROBLEM TO BE SOLVED: To provide a solid-state laser beam oscillator and a solid-state laser beam oscillation device capable of surely performing single vertical mode oscillation and generating the completely round laser beam in a single horizontal mode. SOLUTION: A parallelism adjusting device 10 for adjusting optical parallelism between a reflection surface 7 and an output coupler 6 is provided. The parallelism adjusting device is constituted of a holding member 11 which holds the output coupler, and a holding member 12 which holds the reflection surface. On the holding member 11 and the holding member 12, a first fitting surface 11A and a second fitting surface 11A are formed to be abutted each other by one and the other of a concave spherical surface and a convex spherical surface having the same curvature, or one and the other of a concave conical surface and the convex spherical surface. By mutually sliding and swinging both fitting surfaces in the state of abutting them, a resonator length is accurately set, and the parallelism of the reflection surface and the output coupler is adjusted. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004088129A

公开(公告)日：2004-03-18

申请号：JP2003409613

申请日：2003-12-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI

IPC: H01S3/109

Abstract: PROBLEM TO BE SOLVED: To minimize external radiation of unnecessary light, internally-reflected light and scattered light into outside a package, avoid increase in cost and size, stabilize operation by reducing returned light, and control the polarization of outgoing light, etc. while minimizing the number of parts.
SOLUTION: In a small, integrated SHG laser beam generator, a wavelength conversion element 3 is provided in a resonator of a solid-state laser oscillator excited by a semiconductor laser element 8 so that strong solid-state laser oscillation light accumulated in the resonator produces an SHG laser beam having a high efficiency and a short wavelength. A package 1 is partitioned into inside and outside of the package 1 of the generator are partitioned, and a film for separating light having a predetermined wavelength from the SHG laser beam is provided at least on one of surfaces of a light transmitting means (window 2) provided at outgoing port of the SGH laser beam. The window 2 constitutes a material having a wedge shape or having a lens effect; an element for controlling polarization, frequency, phase, etc. on a time basis; an apature, a slit and so on for passing only a main beam in the laser beam.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003050413A

公开(公告)日：2003-02-21

申请号：JP2001237593

申请日：2001-08-06

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MASUDA HISASHI

IPC: G02F1/37 ,  H01S3/109 ,  H01S5/06 ,  H01S5/14 ,  H01S5/323

CPC classification number: H01S5/32341 ,  G02F2001/3505 ,  G02F2001/3542 ,  H01S5/005 ,  H01S5/0092

Abstract: PROBLEM TO BE SOLVED: To make a laser light generating device small-sized while efficiently generating laser light in the ultraviolet range. SOLUTION: The laser light generating device is so constituted that output light having 1st wavelength obtained by a semiconductor laser 1 containing gallium nitride is introduced into an external resonator 10 using nonlinear optical crystal 15. The output light is thus passed through the nonlinear optical crystal 15 and then ultraviolet rays which are reduced in wavelength are outputted as laser light. Further, the nonlinear optical crystal is held at low temperature to make the wavelength shorter.

Abstract translation: 要解决的问题：使激光发生装置小型化，同时有效地产生紫外线范围的激光。 解决方案：激光产生装置的结构使得通过包含氮化镓的半导体激光器1获得的具有第一波长的输出光被引入到使用非线性光学晶体15的外部谐振器10中。因此，输出光通过非线性光学晶体15 然后以波长输出的紫外线作为激光输出。 此外，非线性光学晶体保持在低温以使波长更短。

公开(公告)号：JP2001337354A

公开(公告)日：2001-12-07

申请号：JP2000153636

申请日：2000-05-24

Applicant: SONY CORP

Inventor： MASUDA HISASHI

IPC: G02F1/37 ,  H01S3/094 ,  H01S3/109

Abstract: PROBLEM TO BE SOLVED: To stably obtain laser beams which are continuously emitted at wavelengths of 185 to 200 nm with good energy efficiency. SOLUTION: The first laser beam which is a continuous light of 500 to 550 nm in wavelength is outputted by a laser oscillator 11. This first laser beam is made incident on a first resonator 12 and is subjected to wavelength conversion by a solid-state laser crystal, by which the second laser beam of 650 to 900 nm in wavelength is generated. On the other hand, the first laser beam is made incident on a wavelength conversion section 13 as well and is subjected to wavelength conversion by a wavelength conversion crystal 44, by which the third laser beam of 250 to 275 nm in wavelength is generated. The fourth laser beam of 185 to 200 nm in wavelength is generated by sum frequency mixing of the second laser beam and the third laser beam.

公开(公告)号：JPH10294517A

公开(公告)日：1998-11-04

申请号：JP10198797

申请日：1997-04-18

Applicant: SONY CORP

Inventor： MASUDA HISASHI

IPC: H01S3/098 ,  H01S3/11

Abstract: PROBLEM TO BE SOLVED: To make feasible the stable control of longitudinal mode distribution including the oscillation of Q switch laser in a plurality of frequency and central frequency and wavelength width, by a method wherein the outgoing beams from an injected wave beam source is synchronously injected with the Q switch laser beam source. SOLUTION: A laser beam emitter is composed of Q switch laser part 1 and an injecting laser part 2 as an injecting laser wave beam source for synchronously injecting with the Q switch laser part 1. Next, the outgoing beams from a resonator 2 of the injecting laser part 2 are led into the resonator of the Q switch laser 1 as the injecting beams by reflection using a mirror 3 and a polarizer 17 or the mirror 23 only, while passing through an isolator 5 and a beam modulator 26 provided if necessary. In such a constitution, the beams having the spectrum exceeding two frequencies are used as the injecting beams so that wavelength distribution of the injecting beams and the resonator mode in the Q switch laser part 1 may be duplicated, thereby enabling the Q switch laser part 1 to be oscillated in a plurality of modes.