All-Fiber CO<sub>2</sub> Sensor Using Hollow Core PCF Operating in the 2 μm Region

Sully Milena Mejia Quintero; Luiz Carlos Guedes Valente; Marcos Sebastião de Paula Gomes; Hugo Gomes da Silva; Bernardo Caroli de Souza

doi:10.20944/preprints201810.0747.v1

Submitted:

30 October 2018

Posted:

31 October 2018

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All-Fiber CO₂ Sensor Using Hollow Core PCF Operating in the 2 μm Region

Sully Milena Mejia Quintero^*,Luiz Carlos Guedes Valente,Marcos Sebastião de Paula Gomes,Hugo Gomes da Silva,Bernardo Caroli de Souza

A peer-reviewed article of this preprint also exists.

Submitted:

30 October 2018

Posted:

31 October 2018

You are already at the latest version

Abstract

A realistic implementation of an all-fiber CO₂ sensor, using 74 cm of hollow core PCF fiber 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. The response time obtained was 10 min. The use of an FBG tuned fiber ring laser, specifically designed for this application, is discussed and preliminary results with this laser are also presented.

Keywords:

gas sensor

;

photonic crystal fiber

;

tunable laser

;

fiber Bragg Grating

;

carbon dioxide monitoring

Subject:

Physical Sciences - Optics and Photonics

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