Fiber MOPA based tunable source for terahertz spectroscopy
Fiber MOPA based tunable source for terahertz spectroscopy
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DOI：
10.7452/lapl.201110143
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发表时间：
2011-05
影响因子：
1.7
通讯作者：
A. Malinowski;D. Lin;S. Alam;Z. Zhang;M. Ibsen;J. Young;P. Wright;K. Ozanyan;M. Stringer;R. Miles;D. Richardson
中科院分区：
文献类型：
--
作者：
A. Malinowski;D. Lin;S. Alam;Z. Zhang;M. Ibsen;J. Young;P. Wright;K. Ozanyan;M. Stringer;R. Miles;D. Richardson
研制了一种基于镱光纤主振荡功率放大器（MOPA）差频产生太赫兹光谱仪。该谱仪的分辨率为1.2GHz。它可以在几百GHz以上快速调谐，并且可以通过交换交替种子激光器并调整光束对准差频产生（DFG）晶体来覆盖更宽的频率范围（0.7-2.5 THz）。该系统完全由市售的纤维和纤维组分构成。我们提供了一些水蒸气吸收线的演示数据。
We have developed a terahertz spectrometer based on difference frequency generation of beams from an ytterbium fiber master oscillator power amplifier (MOPA) system. The spectrometer has a resolution of ∼ 2 GHz. It can be tuned rapidly over several hundred GHz, and a wider frequency range can be covered (0.7–2.5 THz demonstrated) by swapping in alternate seed lasers and adjusting the alignment of the beams into the difference frequency generation (DFG) crystal. The system was constructed entirely from commercially available fiber and fiber components. We present some demonstration data on water vapor absorption lines.