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1. 发明授权

US6025911A Broadband ultrashort pulse measuring device using non-linear electronic components 失效
标题翻译：宽带超短脉冲测量装置采用非线性电子元器件
公开(公告)号：US6025911A
公开(公告)日：2000-02-15
申请号：US555717
申请日：1995-11-14
申请人： Scott A. Diddams , Jean-Claude M. Diels , Prien Steffen
发明人： Scott A. Diddams , Jean-Claude M. Diels , Prien Steffen
IPC分类号： G01J11/00 , G01B9/02
CPC分类号： G01J11/00
摘要： A measuring device completely determines the characteristics of light pulses in a beam of ultrashort light pulses using optoelectronic detectors instead of second harmonic generating crystals. An optical system provides a spatial dispersion of an ultrashort pulse in at least one dimension. A two slit filter intercepts the dispersed beam whereby the transmitted spectra combine to provide a beat frequency within selected limits. An optoelectronic detector detects the beat frequency and outputs a signal functionally related to the beat frequency that contains spectral phase information that is sufficient to characterize the pulse. In another embodiment, a beam splitter splits the beam into first and second beams, wherein one of the beams is time delayed and the other beam is spectrally dispersed. The two beam are recombined to provide information about the spectral phase of the ultrashort pulse. The pulse is completely characterized when the spectral phase information is combined with amplitude information.
摘要翻译：测量装置使用光电检测器而不是二次谐波产生晶体完全确定超短光脉冲束中的光脉冲的特性。光学系统在至少一个维度上提供超短脉冲的空间色散。两个狭缝滤波器拦截分散的光束，由此传输的光谱结合在一起提供了选定极限内的拍频。光电检测器检测拍频，并输出功能上与拍频相关的信号，该信号包含足以表征脉冲的光谱相位信息。在另一个实施例中，分束器将光束分裂成第一和第二光束，其中光束之一被延时并且另一束光谱分散。两个光束被重组以提供关于超短脉冲的光谱相位的信息。当频谱相位信息与幅度信息组合时，脉冲被完全表征。

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