Ma Weiguang, Zhou Yueting, Zhao Gang, Jia Mengyuan, Liu Jianxin, Guo Songjie, Dong Lei, Zhang Lei, Yin Wangbao, Xiao Liantuan, Axner Ove, Jia Suotang. Review on Noise Immune Cavity Enhanced Optical Heterodyne Molecular Spectroscopy[J]. Chinese Journal of Lasers, 2018, 45(9): 911007

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- Chinese Journal of Lasers
- Vol. 45, Issue 9, 911007 (2018)

Fig. 1. (a) Principle of NICE-OHMS; relationship of laser components and cavity modes when cavity is (b) empty or (c) filled with targeted gas

Fig. 2. Experimental setup of NICE-OHMS based on EDFL

Fig. 3. Doppler broadened (a) absorption and (b) dispersion NICE-OHMS signals

Fig. 4. Development of detection sensitivity based on Doppler broadened NICE-OHMS

Fig. 5. Effects of same loss and different precision on NICE-OHMS signal

Fig. 6. (a) CEAS and (b) NICE-OHMS signals with frequency locking by controlling PZT; (c) CEAS and (d) NICE-OHMS signals with frequency locking by controlling combination of PZT and AOM

Fig. 7. Schematic of (a) differential and (b) balanced detected NICE-OHMS
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Table 1. Some important parameters of NICE-OHMS performed by research groups so far

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