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NPL - CO2 Monitoring
23 Nov 2018
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NPL Time & Frequency is also involved in the development of compact infra-red frequency standards as on-board satellite references for atmospheric CO2 monitoring from space for climate change studies. In particular NPL has developed a low-profile continuous wave reference comprising a DFB laser stabilised to a 2051 nm absorption in a low-profile CO2-filled and sealed hollow core fibre, for anchoring a satellite-based pulsed 2051 nm laser probing atmospheric CO2 concentrations by means of differential absorption lidar (DIAL). ​CO2 - filled hollow core fibre reference.png
​​ CO2-filled hollow core fibre reference

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