首页> 外国专利> Method for Optical and Electrical Signal Processing of a Multi-Heterodyne Signal Generated by a Multi-Mode Semi-Conductor Laser and Detection Device Utilizing that Method

Method for Optical and Electrical Signal Processing of a Multi-Heterodyne Signal Generated by a Multi-Mode Semi-Conductor Laser and Detection Device Utilizing that Method

机译：多模半导体激光器产生的多外差信号的光电信号处理方法及利用该方法的检测装置

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摘要

A method for optical and electrical signal processing of a multi-heterodyne signal generated by a multi-mode semi-conductor laser, for a system comprising two laser sources and an sample interaction unit. At least the beam of one of the laser passes through said sample interaction unit before being combined on a detector. The first laser is tuned (40=42) by an amount keeping the tuning result within the available detector bandwidth (55). Then the second laser is roughly tuned by the same amount as the tuning of the first laser to bring back the signal to the vicinity (48) of the original place in the RF-domain and within the bandwidth (55) of the detector. The tuning steps are repeated with different value of mode spacing for reconstructing the sample spectrum and provide a high resolution image of the dip (41) absorption line (40).

机译：一种用于由多模半导体激光器产生的多外差信号的光和电信号处理的方法，用于包括两个激光源和样品相互作用单元的系统。至少其中一个激光束在被组合到检测器上之前穿过所述样品相互作用单元。第一激光的调谐量（ 40 => 42 ）保持调谐结果在可用检测器带宽（ 55 ）之内。然后，将第二个激光器大致调谐到与第一个激光器相同的数量，以将信号带回到RF域中原始位置的附近（ 48 ）并在带宽（ 55 ）。以不同的模式间隔值重复进行调谐步骤，以重建样品光谱，并提供倾角（ 41 ）吸收线（ 40 ）的高分辨率图像。 展开▼

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公开/公告号US2017201328A1

专利类型

公开/公告日2017-07-13

原文格式PDF

申请/专利权人 ETH ZÜRICH;
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申请/专利号US201515319364

发明设计人 ANDREAS HUGI;GUSTAVO FILIPE FERREIRA VILLARES;JÉRÔME FAIST;
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申请日2015-06-16

分类号H04B10/64;H04B10/524;H04B10/50;G01J3/433;G01J9/02;

国家 US

入库时间 2022-08-21 13:52:27

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