RETARDATION MEASURING APPARATUS
    21.
    发明专利

    公开(公告)号:JPH0495747A

    公开(公告)日:1992-03-27

    申请号:JP20948990

    申请日:1990-08-08

    Applicant: SONY CORP

    Abstract: PURPOSE:To measure the retardation of a sample readily in a short time by measuring the distance FSR between the peaks of the transmittances of the same polarized light and the distance delta between the peaks of the transmittances of the different polarized lights, and obtaining the retardation of the sample based on the result of the comutation of pi delta/FSR. CONSTITUTION:In this convention, there are following devices. A resonator RS comprises a pair of facing mirrors 4 and 6 having the high reflectivities. Variable means 6,10,11 and 12 can change the length of the optical path between a pair of the mirrors 4 and 6 of the resonator RS. A single-model laser 1 which emits input laser light is provided at one end of the optical axis of the resonator RS. A photodetector 9 detects the output laser light from the other end of the resonator. The distance FSR between the peaks of the transmittances of the same polarized light when a sample 5 is provided at the optical path of the resonator RS and the distance delta between the peaks of the transmittances of the different polarized lights are measured. The retardation of the sample is obtained based on the result of the computation of pi delta/FSR.

    MEASURING APPARATUS FOR OPTICAL LOSS

    公开(公告)号:JPH0480633A

    公开(公告)日:1992-03-13

    申请号:JP19419490

    申请日:1990-07-23

    Applicant: SONY CORP

    Abstract: PURPOSE:To enable high-precision and wide-range measurement of an optical loss of a sample by a simple construction by determining free spectral ranges and transmission peak widths of a resonator in the cases when the sample is disposed in the optical path of the resonator and when it is not disposed therein. CONSTITUTION:A measuring apparatus is constructed of a resonator RS composed of a pair of mirrors 4 and 6 of high reflectivity facing each other, a variable means composed of a high-voltage amplifier 10 making variable an optical path between the mirrors 4 and 6 of the resonator RS, a function generator 11 and a piezoelectric element 12 fitted on the back of the mirror 6, a single-mode laser 1 applying an input laser light onto one end side on the optical axis of the resonator RS, and a photodetector 9 detecting an output laser light from the other end side of the resonator RS. Free spectral ranges and transmission peak widths of the resonator RS in the cases when a sample 5 is disposed in the optical path of the resonator RS and when it is not disposed therein are obtained from a detection output of the photodetector 9, and an optical loss of the sample is determined from the values thereof.

    LASER LIGHT SOURCE
    23.
    发明专利

    公开(公告)号:JPH01143377A

    公开(公告)日:1989-06-05

    申请号:JP30184287

    申请日:1987-11-30

    Applicant: SONY CORP

    Abstract: PURPOSE:To improve coherency by employing as an output laser beam a laser beam component having a frequency of the sum obtained by coupling an oscillation laser beam of a solid laser and a laser beam for converting the wavelength of a semiconductor laser. CONSTITUTION:When a first laser light LA2 obtained from a solid laser 4 and a second laser light LA1 obtained from a semiconductor laser 1 are coupled by a nonlinear optical crystalline element 6, a composite light containing the sum frequency light component of the first laser light LA2 and the second laser light LA1 from the element 6 is obtained. Accordingly, the sum frequency light component is radiated as the output laser light LA3, and a laser beam having substantially similar to the optical characteristic to that the of the solid laser and a wavelength shorter than that of the laser beam LA2 can be easily generated.

    Coupler termination device and electromagnetic coupler
    24.
    发明专利
    Coupler termination device and electromagnetic coupler 审中-公开
    联轴器终端装置和电磁耦合器

    公开(公告)号:JP2013247675A

    公开(公告)日:2013-12-09

    申请号:JP2013091461

    申请日:2013-04-24

    CPC classification number: H04B5/00 H01P5/028 H03H7/0123 H04B1/52

    Abstract: PROBLEM TO BE SOLVED: To provide a coupler termination device which can reduce the EMI.SOLUTION: The coupler termination device comprises: a first termination which is connected to a transmitter operating at a first frequency and has a resonant frequency equal to a second frequency; and a second termination which is connected to a receiver operating at the first frequency and has a resonant frequency equal to a third frequency. If the second and/or third frequencies are substantially separated spectrally from the first frequency and the first and second terminations are brought into close proximity to and engaged with each other, then an equivalent resonant frequency is substantially the first frequency.

    Abstract translation: 要解决的问题:提供一种可以降低EMI的耦合器终端装置。解耦:耦合器终端装置包括:第一终端,其连接到以第一频率工作并具有等于第二频率的谐振频率的发射机; 以及第二终端,其连接到以第一频率工作并具有等于第三频率的谐振频率的接收机。 如果第二频率和/或第三频率基本上与第一频率频谱分离,并且第一和第二终端彼此接近并接合,则等效谐振频率基本上是第一频率。

    On-pcb dielectric waveguide
    25.
    发明专利
    On-pcb dielectric waveguide 审中-公开
    ON-PCB电介质波导

    公开(公告)号:JP2013046412A

    公开(公告)日:2013-03-04

    申请号:JP2012138605

    申请日:2012-06-20

    Abstract: PROBLEM TO BE SOLVED: To reduce propagation loss at a wide range of frequencies by replacing a microstrip line (MSL), whose loss increases with frequencies, by a dielectric waveguide.SOLUTION: A system for inter-chip RF communication is mounted on a PCB, and has a dielectric waveguide 22 made of a dielectric material. The system has couplers 24, 26 at respective ends 32, 34 of the dielectric waveguide 22. The couplers 24, 26 couple the dielectric waveguide 22 with signal sources 28, 30, respectively. The dielectric waveguide 22 is, on the PCB, printed, embossed, cut or pre-prepared.

    Abstract translation: 要解决的问题:为了通过用介质波导代替其损耗随频率增加的微带线(MSL)来减小宽频率范围的传播损耗。 解决方案:用于片间RF通信的系统安装在PCB上,并具有由电介质材料制成的电介质波导22。 该系统在电介质波导22的相应端部32,34处具有耦合器24,26。耦合器24,26分别将电介质波导22与信号源28,30耦合。 电介质波导22在PCB上印刷,压花,切割或预制备。 版权所有(C)2013,JPO&INPIT

    Wavelength conversion device, laser light generating apparatus and wavelength conversion method
    26.
    发明专利
    Wavelength conversion device, laser light generating apparatus and wavelength conversion method 有权
    波长转换装置,激光发光装置和波长转换方法

    公开(公告)号:JP2010020135A

    公开(公告)日:2010-01-28

    申请号:JP2008181049

    申请日:2008-07-11

    Abstract: PROBLEM TO BE SOLVED: To provide a wavelength conversion device capable of keeping high efficiency of wavelength conversion for a longer time than that in the prior art.
    SOLUTION: When performing wavelength conversion of a second harmonic wave L2 in a fourth harmonic wave generating part 14, the incident position of the second harmonic wave L2 is relatively displaced in a direction including a projection direction component C1 of +C axis to the incident plane S1 in a BBO crystal 142 in the incident plane S1. Thereby, for example, when the BBO crystal 142 is deteriorated due to absorption of a fourth harmonic wave L4 in a deep ultraviolet area, the efficiency of wavelength conversion in the fourth harmonic wave generating part 14 is efficiently recovered.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供能够比现有技术更长时间保持高效率的波长转换的波长转换装置。 解决方案:当在第四谐波产生部分14中执行二次谐波L2的波长转换时,二次谐波L2的入射位置在包括+ C轴的投影方向分量C1的方向上相对移位到 在入射面S1中的BBO晶体142中的入射面S1。 因此,例如,当BBO晶体142由于在深紫外区域中的四次谐波L4的吸收而劣化时,有效地恢复第四谐波产生部14中的波长转换效率。 版权所有(C)2010,JPO&INPIT

    Solid-state laser beam oscillator and solid-state laser beam oscillation device
    27.
    发明专利
    Solid-state laser beam oscillator and solid-state laser beam oscillation device 审中-公开
    固体激光束振荡器和固态激光束振荡器件

    公开(公告)号:JP2009004818A

    公开(公告)日:2009-01-08

    申请号:JP2008258747

    申请日:2008-10-03

    Abstract: PROBLEM TO BE SOLVED: To solve problems of correct setting of resonator length and parallelism between a reflection plane and an output coupler, in an unstable resonator in which at least one of the reflection plane and the output coupler has a flat surface or a very gentle curvature surface. SOLUTION: The unstable resonator is provided with a parallelism adjusting device 10 which adjusts optical parallelism between the reflection plane 7 and the output coupler 6. The parallelism adjusting device 10 is constituted by a holding member 11 which holds the output coupler 6, and a holding member 12 which holds the reflection plane 7. Wherein, on the holding members 11 and 12, a first fitting surface 11A and a second fitting surface 12A are formed respectively, so as 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, and by mutually sliding and swinging both fitting surfaces while abutting them, the resonator length is accurately set, and the parallelism between the reflection plane and the output coupler is adjusted. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 解决的问题为了解决反射面和输出耦合器之间谐振器长度的正确设置和平行度的问题,在反射面和输出耦合器中的至少一个具有平坦表面的不稳定谐振器中,或 一个非常柔和的曲率表面。 解决方案:不稳定谐振器设置有平行度调节装置10,其调整反射面7和输出耦合器6之间的光学平行度。平行度调节装置10由保持输出耦合器6的保持构件11, 以及保持构件12,其保持反射面7.其中,在保持构件11和12上分别形成有第一配合表面11A和第二装配表面12A,以便彼此相互靠在一起 具有相同曲率的凹球面和凸球面,或凹锥形表面和凸球面中的一个以及相互滑动并摆动两个装配表面,谐振器长度被准确地设定, 调整反射面和输出耦合器之间的平行度。 版权所有(C)2009,JPO&INPIT

    Laser beam generator and laser beam generating method

    公开(公告)号:JP2004047509A

    公开(公告)日:2004-02-12

    申请号:JP2002199067

    申请日:2002-07-08

    Inventor: MASUDA HISASHI

    Abstract: PROBLEM TO BE SOLVED: To provide a laser beam generator capable of generating a laser beam of substantially continuous wave stably and efficiently, without complicating the structure or increasing the size. SOLUTION: A first laser oscillator 10 generates a pulsed light Pul of repetition frequency fp. A second laser oscillator 20 is pumped by the pulsed light Pul from the first laser oscillator 10. More specifically, the first laser oscillator 10 generates a pulsed light Pul of repetition frequency fp which is higher than the relaxed oscillation frequency fr of the second laser oscillator 20 which is pumped by the pulsed light Pul to deliver a laser beam CW of substantially continuous wave having a pulse duty ratio higher than that of the pulsed light. COPYRIGHT: (C)2004,JPO

    DEVICE AND METHOD FOR GENERATING LASER LIGHT

    公开(公告)号:JP2002311467A

    公开(公告)日:2002-10-23

    申请号:JP2001112682

    申请日:2001-04-11

    Applicant: SONY CORP

    Inventor: MASUDA HISASHI

    Abstract: PROBLEM TO BE SOLVED: To realize stable locking and to evade accompaniment of rise of cost and increase of power consumption for the purpose in a laser light generator having a plurality of resonators. SOLUTION: In the laser light generator 1, a laser light source 2, a phase modulator 3 and a signal generator 7 to impress a modulation signal on it and the resonators 5- X (X=1, 2, etc.), are provided. And nonlinear optical elements 8 are provided in a resonator 5- 1 and an optical path length varying means 9 to vary length of optical paths of the respective resonators is provided. A control circuit 11 of negative feedback structure regarding control of length of the resonators is formed by obtaining error signals by using detection signals of photodetectors 6- X (X=1, 2, etc.), to receive light from the respective resonators and controlling the optical path length varying means 9 according to an FM side band method. The laser light generator is constituted so that laser light is made incident on the resonator 5- 1 after phase modulation is given to it, light to be generated by the nonlinear optical element 8 is made incident on a resonator 5- 2 and the plurality of resonators are simultaneously held as a resonated state.

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