A Gas Cell Based on Hollow-Core Photonic Crystal Fiber (PCF) and Its Application for the Detection of Greenhouse Gas (GHG): Nitrous Oxide (N<sub>2</sub>O)

<div>Output of the system obtained from the OSA (a) adjusting the VOA and (b) using a hollow-core fiber (HC19-1550, NKT) of length 6 m as gas cell inside the cavity filled with 0.5% acetylene gas. The absorption lines are clearly visible in the C band.</div>

Journal of Sensors

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Figure 6

Figure 6: A Gas Cell Based on Hollow-Core Photonic Crystal Fiber (PCF) and Its Application for the Detection of Greenhouse Gas (GHG): Nitrous Oxide (N<sub>2</sub>O) 

Figure 6 | A Gas Cell Based on Hollow-Core Photonic Crystal Fiber (PCF) and Its Application for the Detection of Greenhouse Gas (GHG): Nitrous Oxide (N2O) 