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公开(公告)号：US5025142A
公开(公告)日：1991-06-18
申请号：US353948
申请日：1989-05-19
IPC分类号： G02B27/00 , G02F1/35 , H01S5/00 , H04B10/00 , H04B10/07 , H04B10/293 , H04B10/299
CPC分类号： H04B10/299 , H04B10/2914
摘要： A light waveform shaping apparatus comprises; a beam splitting means for branching an input optical signal into two optical signals; a photoelectric converter for converting one of the two branched optical signals into an electrical signal; an optical amplifier whose gain is adjustable by a controlling electrical signal, for amplifying an optical signal; an input optical path for introducing the other branched optical signal to the optical amplifier; and an electrical circuit for introducing the electrical signal from the photoelectric converter to the optical amplifier; wherein the optical and controlling electrical signals are supplied to the optical amplifier at a predetermined timing of generally coincident arrival.
摘要翻译： 光波形整形装置包括： 分束装置，用于将输入光信号分成两个光信号; 用于将两个分支光信号之一转换为电信号的光电转换器; 光放大器，其增益由控制电信号调节，用于放大光信号; 用于将另一分支光信号引入光放大器的输入光路; 以及用于将来自光电转换器的电信号引入到光放大器的电路; 其中所述光学和控制电信号在大致重合到达的预定定时被提供给所述光放大器。
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公开(公告)号：US4958354A
公开(公告)日：1990-09-18
申请号：US348450
申请日：1989-05-08
IPC分类号： H01S3/137 , G05D25/02 , H01S3/131 , H01S3/23 , H01S5/06 , H01S5/068 , H01S5/0683 , H01S5/50 , H05B37/02
CPC分类号： H05B37/02 , G05D25/02 , H01S5/0683 , H01S5/50
摘要： A light intensity stabilizing apparatus comprises an optical amplifier such as a non-resonant traveling-wave type optical amplifier, whose gain is adjustable by a controlling electrical signal and which amplifies incident light emitted from a light source, a beam splitting means for branching output light of the optical amplifier into stabilized output light and feedback light, a light intensity detector for converting said feedback light into an electrical signal, and a control unit for producing said controlling electrical signal in accordance with said electrical signal from said light intensity detector.
摘要翻译： 一种光强度稳定装置，其特征在于包括：非均匀行波型光放大器等光放大器，其增益可通过控制电信号进行调节，并放大从光源发射的入射光;分束装置， 的光放大器转换成稳定的输出光和反馈光，用于将所述反馈光转换成电信号的光强度检测器，以及用于根据来自所述光强度检测器的所述电信号产生所述控制电信号的控制单元。
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公开(公告)号：US5815519A
公开(公告)日：1998-09-29
申请号：US799656
申请日：1997-02-11
CPC分类号： H01S3/1112 , H01S3/09415 , H01S3/0811 , H01S3/0816 , H01S3/102 , H01S3/105
摘要： An ultrashort pulse laser apparatus of the this invention includes (1) a laser medium, (2) a laser resonator which stores the laser medium and externally extracts a laser beam, and (3) an excitation source for outputting an excitation energy to the laser resonator to excite the laser medium. The laser resonator includes (i) a plurality of resonant mirrors disposed on both sides of the laser medium to form a resonant optical path, and (ii) a phase dispersion compensation unit which includes two optical members respectively arranged on two light input/output surface sides of the laser medium on the resonant optical path and compensates phase dispersion of light in the resonant optical path. That is, the laser medium is disposed in the optical path between the two optical members of the phase dispersion compensation unit. With this arrangement, even when the laser medium is arranged almost at the center of the laser resonator to stabilize mode locking, the cavity length of the resonant optical path can be reduced. Therefore, the repetition frequency of laser pulses can be increased, and simultaneously, size reduction of the laser apparatus itself can be achieved.
摘要翻译： 本发明的超短脉冲激光装置包括：（1）激光介质，（2）存储激光介质并从外部提取激光束的激光谐振器，以及（3）向激光器输出激发能的激励源 谐振器来激发激光介质。 激光谐振器包括（i）设置在激光介质的两侧以形成共振光路的多个谐振反射镜，以及（ii）相位色散补偿单元，其包括分别布置在两个光输入/输出表面上的两个光学部件 激光介质在谐振光路上的两侧，并补偿光在共振光路中的相位色散。 也就是说，激光介质设置在相位色散补偿单元的两个光学构件之间的光路中。 通过这种布置，即使激光介质几乎位于激光谐振器的中心以稳定模式锁定，也可以减小谐振光路的腔长。 因此，可以提高激光脉冲的重复频率，同时可以实现激光装置本身的尺寸减小。
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公开(公告)号：US4973900A
公开(公告)日：1990-11-27
申请号：US200972
申请日：1988-06-01
IPC分类号： G01R13/04 , G01R15/24 , G01R19/00 , G01R19/155
CPC分类号： G01R13/04 , G01R15/242 , G01R19/155
摘要： A voltage detecting device using an electro-optical material with a refractive index that is changed by a voltage at a part of an object comprising a light source, an electro-optical material for changing the optical path of the light beam from the light source in accordance with the refractive index of the electro-optical material, and a streak camera to display on a Phosphor screen an image of the voltage over time at a part of the object.
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公开(公告)号：US4958124A
公开(公告)日：1990-09-18
申请号：US245253
申请日：1988-09-16
CPC分类号： G01R15/242
摘要： A multi-channel voltage detector for converting multi-channel electrical signals into optical signals and simultaneously detecting multi-channel voltages in parallel mode. Comprising electro-optic conversion means provided thereon with a plurality of electrical circuits for receiving corresponding multi-channel electrical signals to change the refractive index at each of the locations thereon according to the supplied multi-channel electrical signals, means for supplying light having a predetermined polarization to each of the locations, each of the emergent light beams transmitted through the conversion means having a polarization different from said predetermined polarization in accordance with the change in the refractive index of the corresponding location, and photodetecting means for converting the changes in polarization of the emergent light beams to the changes in optical intensity thereof and for simultaneously detecting the changes in optical intensity of the emergent light beams in parallel to thereby simultaneously detect the multi-channel electrical signals in parallel.
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公开(公告)号：US4920310A
公开(公告)日：1990-04-24
申请号：US199350
申请日：1988-05-26
IPC分类号： G01R1/07 , G01R15/24 , G01R19/00 , G01R31/302 , H01L21/66
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 an 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 avoid undesired changes of polarization of the light beam when passing through optical fibers, a polarizer, beam splitters, and an analyzer are assembled together and connected to the electro-optic material to form a compact optical probe.
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公开(公告)号：US4891579A
公开(公告)日：1990-01-02
申请号：US212984
申请日：1988-06-29
IPC分类号： G01R19/00 , G01R1/07 , G01R15/24 , G01R31/302 , G01R31/308
CPC分类号： G01R15/242 , G01R1/071 , G01R31/308
摘要： A voltage detector detects and indicates simultaneously the voltage levels at a plurality of parts of an object to be measured. A probe formed of electrooptic material having a refractive index changed in the presence of a voltage placed near the object and beams of polarized light are transmitted through the probe and reflected by a polarized beam splitter to a detector for indicating the voltage levels at the parts of the object.
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公开(公告)号：US4855591A
公开(公告)日：1989-08-08
申请号：US203929
申请日：1988-06-08
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 stably trigger a streak camera, the first reference light split before entering the electro-optic material and the second reference light split after emerging from the electro-optic material are used in the form of the difference in intensity between the two reference light beams for generating a trigger signal supplied to the streak camera.
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公开(公告)号：US4988859A
公开(公告)日：1991-01-29
申请号：US350273
申请日：1989-05-11
CPC分类号： G01J1/04 , G01J1/0459 , G01J1/42 , H01J31/502 , G01J2001/4486
摘要： An optical waveform measuring device, comprising an optical amplifier for amplifying a light beam under measurement and a photodetector to which a light beam amplified by the optical amplifier is applied.
摘要翻译： 一种光波形测量装置，包括用于放大测量光束的光放大器和由光放大器放大的光束的光电检测器。
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公开(公告)号：US4980632A
公开(公告)日：1990-12-25
申请号：US358220
申请日：1989-05-30
CPC分类号： G01R13/347
摘要： The electrical signal observing device measures the electrical signal by applying the electrical signal to be measured to an optical amplifier in order to modulate a short pulse light train directed through the electrical amplifier. The electrical signal to be measured acts as a gain control for the optical amplifier. The photodetector detects the output of the optical amplifier and applies a resultant electrical signal to an integrator circuit after which the signal is displayed. The signal may be displayed in a time base fashion using a sweep generated by a delay system of the short pulse light train.
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