Terahertz spectrometer operation by laser repetition frequency tuning
Terahertz spectrometer operation by laser repetition frequency tuning
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DOI：
10.1364/josab.28.000592
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发表时间：
2011-04-01
影响因子：
1.9
通讯作者：
Holzwarth, Ronald
中科院分区：
文献类型：
--
作者：
Wilk, Rafal;Hochrein, Thomas;Holzwarth, Ronald
我们提出了一个完全光纤耦合太赫兹时域光谱仪的基础上，一个可调的脉冲重复频率，不采用外部延迟线的单超快激光。我们的方法是一个重大的改进，其他计划，无论是采用外部可移动延迟线或异步光学采样方案，也不需要一个外部延迟级，但采用两个激光器代替。我们的光谱仪的扫描范围覆盖了4 ns的两个相邻脉冲之间的全部时间延迟。这允许完全光纤耦合系统，实现前所未有的鲁棒性和易用性。(C)2011年美国光学学会
We present a fully fiber-coupled terahertz time domain spectrometer based on a single ultrafast laser with an adjustable pulse repetition frequency that does not employ an external delay line. Our approach represents a major improvement over other schemes that either employ external movable delay lines or alternatively asynchronous optical sampling schemes that also do not need an external delay stage, but employ two lasers instead. The scanning range of our spectrometer covers the full temporal delay between two adjacent pulses of 4 ns. This allows for a fully fiber-coupled system, enabling unprecedented robustness and ease of use. (C) 2011 Optical Society of America