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Towards absorption spectroscopy by means of mid-infrared supercontinuum generation in a step index tellurite fiber
Laser Physics ( IF 1.2 ) Pub Date : 2021-02-05 , DOI: 10.1088/1555-6611/abd9af
Arnaud Lemire 1 , Anthony Maldonado 1 , Frdric Dsvdavy 1 , Bertrand Kibler 1 , Pierre Mathey 1 , Grgory Gadret 1 , Jean-Charles Jules 1 , Nguyen Phuoc Trung Hoa 2 , Takenobu Suzuki 2 , Yasutake Ohishi 2 , Frdric Smektala 1
Affiliation  

We report on mid-infrared gas spectroscopy measurements by means of the supercontinuum (SC) absorption spectroscopy method. We developed a 80 MHz-repetition-rate mid-infrared SC light source with an average power of 40 mW generated through nonlinear propagation of 200 fs pulses in a 10 cm-long segment of step-index tellurite fiber. A compact multipass cell is used for analyzing absorption of CO2 and CH4 gases and their mixture in the 2–3.5 m spectral range. Experimental results are compared to the HITRAN database.



中文翻译:

迈向阶跃型碲酸盐纤维中红外超连续谱的吸收光谱

我们通过超连续谱(SC)吸收光谱法报告中红外气体光谱测量。我们开发了80 MHz重复频率的中红外SC光源,该光源通过在10厘米长的阶跃型碲酸盐光纤中非线性传播200 fs脉冲而产生的平均功率为40 mW。紧凑的多通道样品池用于分析2-3.5中CO 2和CH 4气体及其混合物的吸收米光谱范围。将实验结果与HITRAN数据库进行比较。

更新日期:2021-02-05
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