학술논문
All-Fiber CO2 Sensor Using Hollow Core PCF Operating in the 2 µm Region.
Document Type
Article
Author
Source
Subject
*CARBON dioxide
*PHOTONIC crystal fibers
*LIGHT absorbance
*WAVELENGTHS
*REACTION time
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Language
ISSN
1424-8220
Abstract
A realistic implementation of an all-fiber CO2 sensor, using 74 cm of hollow core photonic crystal fiber (HC-PCF) as the cavity for light/gas interaction, has been implemented. It is based on CO2 absorbance in the 2 µm region. The working range is from 2% to 100% CO2 concentration at 1 atm total pressure and the response time obtained was 10 min. Depending on the concentration level, the sensor operates at one of three different wavelengths (2003.5 nm, 1997.0 nm and 1954.5 nm) to maintain a high sensitivity across all the working range. [ABSTRACT FROM AUTHOR]