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公开(公告)号：US4994663A
公开(公告)日：1991-02-19
申请号：US355608
申请日：1989-05-23
摘要： An apparatus for measuring an autocorrelation wavaeform of intensity of input light comprises a beam splitting means for dividing the input light into two light beams, a photoelectric converter for converting one of the divided beams into an electrical signal, an optical modulating means for modulating the other light beam in accordance with the electrical signal, a delay means for varying a relative delay time between arrival times to the optical modulating means of the light beam and the electrical signal, and a photodetector having a response speed faster than that of the delay time variation for detecting output light from the optical modulating means.
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22.发明授权Electrical signal observing device for converting an electrical signal to be measured into an optical intensity waveform 失效用于将要测量的电信号转换为光强度波形的电信号观测装置
公开(公告)号：US4967144A
公开(公告)日：1990-10-30
申请号：US357824
申请日：1989-05-26
CPC分类号： G01R15/24 , G01R13/347
摘要： An electrical signal observing device has an optical signal as a probe for converting the voltage or current waveform to be measured into an optical intensity waveform. This optical intensity waveform is converted into a signal which can be used by a signal observation device. A continuous wave light source is used for generating an optical signal which is amplified by an optical amplifier having a gain controlled by the electrical signal to be measured. A photodetector detects light from the optical amplifier and generates an observation signal which is displayed by a display unit.
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公开(公告)号：US4864577A
公开(公告)日：1989-09-05
申请号：US203118
申请日：1988-06-07
CPC分类号： H01S3/1115 , H01S3/082 , H01S3/10076 , H01S3/1127 , H01S3/213
摘要： A highly repetitively pulsed laser device is provided including a feedback system simple in construction which returns a light pulse emitted from a laser resonator to the laser resonator so that the light pulse is superposed on a light pulse in the laser resonator.
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24.发明授权
公开(公告)号：US4864220A
公开(公告)日：1989-09-05
申请号：US217793
申请日：1988-07-12
IPC分类号： G01R1/07 , G01R15/24 , G01R19/00 , G01R31/302 , H01L21/66
CPC分类号： G01R1/071 , G01R15/242
摘要： In a voltage detector using an electro-optic material whose refractive index is changed by a voltage developing in a selected area of an object under test, a light beam emitted from a light source is applied to a beam splitter, where it is split into a light beam advancing along a reference optical path and a light beam advancing along an optical path extended to an optical path length changing means made of the electro-optic material, and the light beams are returned from the reference optical path and the optical path length changing means after reflection to the beam splitter, where they are caused to interference with each other to provide an output light beam which is applied to a detector. The efficiency of light beam utilization is improved, and the voltage developing in the selected area of the object can be detected with high accuracy.
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公开(公告)号：US4841234A
公开(公告)日：1989-06-20
申请号：US200563
申请日：1988-05-31
CPC分类号： G01R15/242 , G01R1/071
摘要： A voltage detector detects a voltage developing in a selected area of an object such as an integrated circuit by utilizing an electro-optic material equipped in an optical probe. A change in refractive index of the electro-optic material which is caused by the voltage in the object, is detected as a change of polarization of a light beam passing through the electro-optic material. In order to improve the detection sensitivity the voltage detector is equipped with an optical means for making light paths of an input light and an output light different from each other.
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公开(公告)号：US5307199A
公开(公告)日：1994-04-26
申请号：US735792
申请日：1991-07-25
CPC分类号： G02F1/293
摘要： The optical apparatus includes first and second deflection members, a mask, a pumping light source, and a controller. The first and second deflection members are formed of nonlinear optical material whose refractive index is changed upon light radiation. The mask is arranged on an optical path extending from a front side of the first deflection member to a rear side of a second deflection member. The mask has a predetermined transmission pattern. The pumping light source radiates first and second beams on predetermined regions of the first and second deflection members. This changes the refractive indices of the predetermined regions to bend the optical path. The controller variably controls the intensity of the first and second beams.
摘要翻译： 光学装置包括第一和第二偏转构件，掩模，泵浦光源和控制器。 第一偏转构件和第二偏转构件由折射率在光辐射下变化的非线性光学材料形成。 掩模布置在从第一偏转构件的前侧延伸到第二偏转构件的后侧的光路上。 掩模具有预定的传输图案。 泵浦光源在第一和第二偏转构件的预定区域上辐射第一和第二光束。 这改变了预定区域的折射率以弯曲光路。 控制器可变地控制第一和第二光束的强度。
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27.发明授权Voltage detection apparatus using short pulse light source with narrow spectral band width 失效电压检测装置采用具有窄光谱带宽的短脉冲光源
公开(公告)号：US5289114A
公开(公告)日：1994-02-22
申请号：US713215
申请日：1991-06-11
IPC分类号： G01R19/00 , G01R15/22 , H01S3/00 , H01S3/131 , H01S5/00 , H01S5/068 , H01S5/0683 , G01R31/00
CPC分类号： H01S3/0057 , G01R15/22 , H01S5/06835
摘要： A light source for emitting a pulsed laser beam having an ultrashort pulse width and a voltage detector including the light source therein. The light source includes a laser driving unit for driving the laser source to output the pulsed laser beam while the intensity of the pulsed laser beam is stabilized. A chirp compensator is also included to compensate for a chirp in the pulsed laser beam. A wavelength selector is used to extract light having a desired wavelength from the pulsed laser beam, thereby obtaining a pulsed laser beam having an ultrashort pulse width and a desired narrow spectral band width.
摘要翻译： 用于发射具有超短脉冲宽度的脉冲激光束的光源和包括其中的光源的电压检测器。 光源包括激光驱动单元，用于驱动激光源以输出脉冲激光束，同时脉冲激光束的强度稳定。 还包括啁啾补偿器以补偿脉冲激光束中的啁啾声。 使用波长选择器从脉冲激光束提取具有期望波长的光，从而获得具有超短脉冲宽度和期望的窄光谱带宽的脉冲激光束。
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公开(公告)号：US4866721A
公开(公告)日：1989-09-12
申请号：US246601
申请日：1988-09-20
CPC分类号： H01S3/0014 , H01S3/1392 , H01S3/1302 , H01S3/1305 , Y10S372/70
摘要： A highly repetitively pulsed laser stabilizing device which comprises a laser resonator, a feedback system for optically delaying an optical pulse emitted from the laser resonator and returning it in such a manner that it is superposed on an optical pulse in the laser resonator, and a feedback system control section that monitors one of the optical pulses of the laser resonator and feedback system, and controls the optical path length of the feedback system so that the monitored optical pulse is optimum in intensity.
摘要翻译： 一种高度重复脉冲的激光稳定装置，其包括激光谐振器，用于光学地延迟从激光谐振器发射的光脉冲并将其返回的方式的反馈系统，使得其叠加在激光谐振器中的光脉冲上，以及反馈 系统控制部分，其监测激光谐振器和反馈系统的光脉冲之一，并且控制反馈系统的光路长度，使得所监视的光脉冲的强度最佳。
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公开(公告)号：US07046365B1
公开(公告)日：2006-05-16
申请号：US10343017
申请日：2000-07-27
IPC分类号： G01B9/02
摘要： A light pulse from an ultrashort pulse light source 11 is split by a beam splitter 12 and guided, to a detection medium 4, as an excitation pulse and probe pulse having respective predetermined linearly polarized states by an excitation optical system 2 and probe optical system 3, respectively. A light track region which is generated in the detection medium 4 by incidence of the excitation pulse, and in which the refractive index is changed by a nonlinear optical effect, is irradiated with the probe pulse. Of components which have passed through the detection medium 4, a probe pulse component whose polarized state has changed through the light track region is detected by a camera 53 via an analyzer 51 in a photodetection part 5. This realizes a light track observation apparatus capable of directly observing the light track of an excitation pulse.
摘要翻译： 来自超短脉冲光源11的光脉冲被分束器12分离，并通过激发光学系统2和探针光学系统3被引导到检测介质4作为具有各自的预定线偏振态的激励脉冲和探针脉冲 ， 分别。 用探测脉冲照射通过入射激励脉冲而在检测介质4中产生的光线区域，其中折射率由非线性光学效应改变。 已经通过检测介质4的部件中，通过光检测部分5中的分析器51，通过照相机53检测其偏振状态已经通过光轨区域改变的探针脉冲分量。 这实现了能够直接观察激励脉冲的光轨的光轨观察装置。
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公开(公告)号：US5198921A
公开(公告)日：1993-03-30
申请号：US795397
申请日：1991-11-21
CPC分类号： G02B6/2713 , G02B6/105 , G02B6/126 , G02B6/276 , H01S3/06708 , H01S5/5036 , H01S3/06712
摘要： A semiconductor light amplifier is driven by a drive device, and selectively amplifies one of a TM mode component and a TE mode component of input light. For example, TE mode light is selectively amplified by making thickness of the active layer of the semiconductor light amplifier not more than 0.05 .mu.m, or by tilting at least one of the entrance and exit faces of the semiconductor light amplifier by 10 to 16 degrees. An another type of light amplifying polarizer, input signal light and excitation light are combined by a half mirror or an optical coupler, and combined light is input to a rare-earth-element doped, polarization maintaining optical fiber.
摘要翻译： 半导体光放大器由驱动装置驱动，并且选择性地放大输入光的TM模式分量和TE模式分量之一。 例如，通过使半导体光放大器的有源层的厚度不大于0.05μm，或者通过使半导体光放大器的入射面和出射面中的至少一个倾斜10〜16度来选择性地放大TE模式光 。 另一种类型的光放大偏振器，输入信号光和激发光通过半透半反镜或光耦合器组合，组合光输入到稀土元素掺杂的保偏光纤。
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