Device and system for waveform shaping
    112.
    发明授权
    Device and system for waveform shaping 有权
    用于波形整形的装置和系统

    公开(公告)号:US06453082B1

    公开(公告)日:2002-09-17

    申请号:US09665164

    申请日:2000-09-19

    Inventor: Shigeki Watanabe

    Abstract: The present invention relates to a device and system for waveform shaping. The device includes at least two nonlinear loop mirrors (NOLM1 and NOLM2). Each of the NOLM1 and the NOLM2 includes a first optical coupler including first and second optical paths and directionally coupled to each other, a loop optical path formed of a nonlinear optical medium for connecting the first and second optical paths, and a second optical coupler including a third optical path directionally coupled to the loop optical path. The second optical path of the NOLM1 is optically connected to the third optical path of the NOLM2.

    Abstract translation: 本发明涉及一种用于波形整形的装置和系统。 该装置包括至少两个非线性环形反射镜(NOLM1和NOLM2)。 NOLM1和NOLM2中的每一个包括包括第一和第二光路并且彼此定向耦合的第一光耦合器,由用于连接第一和第二光路的非线性光学介质形成的环路光路,以及包括 定向耦合到环路光路的第三光路。 NOLM1的第二光路与NOLM2的第三光路光学连接。

    Bonded, walk-off compensated optical elements
    113.
    发明申请
    Bonded, walk-off compensated optical elements 有权
    粘合式,离散补偿光学元件

    公开(公告)号:US20020108556A1

    公开(公告)日:2002-08-15

    申请号:US09783508

    申请日:2001-02-14

    CPC classification number: C30B33/06 G02F2001/3507 G02F2201/16

    Abstract: A bonded, walk-off compensated crystal for use with optical equipment, and methods of making optical components including same.

    Abstract translation: 一种用于光学设备的结合,离散补偿晶体,以及制造包括其的光学部件的方法。

    Rubidium titanyl arsenate-silver gallium selenide tandem optical parametric oscillator
    114.
    发明申请
    Rubidium titanyl arsenate-silver gallium selenide tandem optical parametric oscillator 有权
    铷钛酸钡 - 银镓硒化镓串联光参量振荡器

    公开(公告)号:US20020097479A1

    公开(公告)日:2002-07-25

    申请号:US10045814

    申请日:2002-01-15

    Abstract: An arrangement (10) for efficiently generating tunable pulsed laser output at 8-12 microns. The arrangement (10) includes a laser (12), a first optical parametric oscillator (14) of unique design, and a second optical parametric oscillator (22). The first oscillator (14) is constructed with an energy shifting crystal (20) and first and second reflective elements (16) and (18) disposed on either side thereof. Energy from the laser (12) at a first wavelength is shifted by the crystal and output at a second wavelength. The second wavelength results from a secondary process induced by a primary emission of energy at a third wavelength, the third wavelength resulting from a primary process generated from the first wavelength in the crystal. Mirror coatings are applied on the reflective elements (16 and/or 18) for containing the primary emission and enhancing the secondary process. The second optical parametric oscillator (22) then shifts the energy output by the first OPO (14) at the second wavelength to the desired fourth wavelength. In the illustrative embodiment, the first optical parametric oscillator (14) includes an x-cut rubidium titanyl arsenate crystal (20) and the second optical parametric oscillator (22) includes a silver gallium selenide crystal. The first wavelength is approximately 1.06 microns, the second wavelength is approximately 3.01 microns, the third wavelength is approximately 1.61 microns, and the fourth wavelength is in the range of 8-12 microns.

    Abstract translation: 一种用于有效地产生8-12微米可调脉冲激光输出的装置(10)。 该装置(10)包括激光器(12),独特设计的第一光学参量振荡器(14)和第二光学参量振荡器(22)。 第一振荡器(14)由能量转换晶体(20)和设置在其两侧的第一和第二反射元件(16)和(18)构成。 来自第一波长的激光器(12)的能量被晶体偏移并以第二波长输出。 第二波长是由第三波长的能量的初次发射引起的第二波长,由从晶体中的第一波长产生的初级波长产生的第三波长。 镜面涂层施加在反射元件(16和/或18)上,用于容纳主要发射并增强二次工艺。 然后,第二光学参量振荡器(22)将由第一OPO(14)输出的能量在第二波长处移位到期望的第四波长。 在说明性实施例中,第一光学参量振荡器(14)包括x切割的铷钛氧烷砷酸盐晶体(20),第二光学参量振荡器(22)包括银镓硒晶体。 第一波长约为1.06微米,第二波长约为3.01微米,第三波长约为1.61微米,第四波长在8-12微米的范围内。

    Optical filter
    115.
    发明申请
    Optical filter 失效
    滤光片

    公开(公告)号:US20020021856A1

    公开(公告)日:2002-02-21

    申请号:US09921140

    申请日:2001-08-03

    Abstract: Three Mach-Zehnder interferometers 141 to 143 are connected in a series between an optical input terminal and an optical output terminal in an optical filter. Each interferometer is composed of two optical paths optical coupled at both ends by optical couplers. Only one interferometer has same optical path lengths between optical couplers. Heaters are disposed on each optical paths to allow the slope of transmission loss to change through the adjustment of the phase shift between those respective optical paths.

    Abstract translation: 三马赫曾德尔干涉仪141至143在光学滤波器中的光输入端子和光输出端子之间串联连接。 每个干涉仪由两个光学耦合器在两端光耦合的光路组成。 光耦合器之间只有一个干涉仪具有相同的光路长度。 加热器设置在每个光路上,以允许通过调整各个光路之间的相移来改变传输损耗的斜率。

    Laser wavelength conversion method and device
    117.
    发明授权
    Laser wavelength conversion method and device 失效
    激光波长转换方法及装置

    公开(公告)号:US06172800B2

    公开(公告)日:2001-01-09

    申请号:US09109733

    申请日:1998-07-02

    Applicant: Hikaru Kouta

    Inventor: Hikaru Kouta

    CPC classification number: G02F1/37 G02F1/3551 G02F2201/16

    Abstract: A laser wavelength conversion method and device for making the converted beam shape and the energy distribution point symmetrical which is suitable for high precision manufacturing and machining. First and second wavelength conversion devices are adjusted such that the phase matching orientations which give the minimum angular tolerances are orthogonal with each other. Fundamental wave is focused by focusing lens, and then incident on first device and second device, and is ejected as the cross shaped beam made of two orthogonal ellipses of the second harmonic waves. First device and second device are unified in order to eliminate the angular adjustment thereof for improving the working efficiency.

    Abstract translation: 一种激光波长转换方法和装置,用于使转换后的光束形状和能量分布点对称,适用于高精度制造和加工。 调整第一和第二波长转换装置,使得给出最小角度公差的相位匹配取向彼此正交。 基波通过聚焦透镜聚焦,然后入射到第一装置和第二装置上,并且作为由二次谐波的两个正交椭圆构成的十字形波束而弹出。 第一装置和第二装置是统一的,以消除其角度调整,以提高工作效率。

    Drive circuit for electro-absorption modulator and optical transmitter
employing the same
    118.
    发明授权
    Drive circuit for electro-absorption modulator and optical transmitter employing the same 失效
    用于电吸收调制器的驱动电路和采用该电路的光发射机

    公开(公告)号:US6014392A

    公开(公告)日:2000-01-11

    申请号:US37062

    申请日:1998-03-09

    Abstract: The present invention relates to A drive circuit can stabilize a bias voltage of an optical modulator to realize long distance transmission by preventing degradation of waveform, even if there is a dispersion on a characteristic of an electro-absorption modulator according to temperature and a secular change. The drive circuit supplies a driving voltage to an electro-absorption modulator which adsorbs a carrier light, depending on the driving voltage and outputting an intensity-modulated signal, and a peak value detector for detecting a peak value of a voltage at an anode of the electro-absorption modulator, and a bias current supplying circuit for supplying a bias current to control the driving voltage according to a difference between the peak value detected by the peak value detector and a predetermined value.

    Abstract translation: 本发明涉及一种驱动电路可以通过防止波形劣化来实现光调制器的偏置电压,从而实现长距离传输,即使根据温度和长期变化对电吸收式调制器的特性有偏差 。 驱动电路将驱动电压提供给依赖于驱动电压吸收载流子并输出强度调制信号的电吸收式调制器,以及峰值检测器,用于检测电压的阳极的峰值 电吸收调制器和用于提供偏置电流以根据由峰值检测器检测的峰值与预定值之间的差来控制驱动电压的偏置电流供应电路。

    Liquid crystal compensation cell including a pair of compensating plates
for LCD and method of manufacturing the same
    119.
    发明授权
    Liquid crystal compensation cell including a pair of compensating plates for LCD and method of manufacturing the same 失效
    液晶补偿单元包括一对LCD补偿板及其制造方法

    公开(公告)号:US5552908A

    公开(公告)日:1996-09-03

    申请号:US377289

    申请日:1995-01-23

    Abstract: A film type compensation cell for an LCD which compensates for the twist angle of the liquid crystal in the LCD. The compensation cell has two compensation films, having orientation grooves formed on the surfaces thereof. Liquid crystal is between the two compensation films and is twisted in an opposite direction of the liquid crystal in the LCD. Compensation cells can be manufactured by forming orientation grooves on the surfaces of the compensation films and applying a liquid crystal therebetween. The compensation films are then pressed together and cut to the requisite size.

    Abstract translation: 一种补偿液晶显示器中液晶扭曲角的液晶显示屏的胶片式补偿单元。 补偿单元具有两个补偿膜,在其表面上形成有定向槽。 液晶位于两个补偿膜之间,并且在LCD的液晶的相反方向上被扭曲。 补偿电池可以通过在补偿膜的表面上形成取向槽并在其间施加液晶来制造。 然后将补偿膜压在一起并切割成必需的尺寸。

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