5 August 2009 Research of difference absorption optical fiber CO gas sensor based on FBG
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Based on analysis of the near infrared spectral absorption of CO molecule and considering factors such as compatibility with the transmission characteristics of silica optical fiber and the price, a kind of allfiber remote sensor utilizing Fiber Bragg Grating(FBG) filters and 1.567μm high power light-emitting diode (LED) was developed for real time absorption measurement. FBG has a low insert loss and can be produced easily compared with dielectric interference filters. Theory and experiment proved that the system has simple construct and high sensibility.
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Yanju Wang, Yanju Wang, Zhihua Liu, Zhihua Liu, Yueyi Kang, Yueyi Kang, Yutian Wang, Yutian Wang, "Research of difference absorption optical fiber CO gas sensor based on FBG", Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73832R (5 August 2009); doi: 10.1117/12.835042; https://doi.org/10.1117/12.835042


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