Feng, Yutong and Nilsson, Johan and Jain, Saurabh and May-Smith, Timothy C. and Sahu, Jayanta K. and Jia, Fuqiang and Benoy, Thomas and Wilson, David and Lengden, Michael and Johnstone, Walter (2014) LD-seeded thulium-doped fibre amplifier for CO2 measurements at 2 µm. In: Europhoton 2014, 2014-08-24 - 2014-08-29.
Feng_etal_E2014_LD_seeded_thulium_doped_fibre_amplifier_CO2_measurements.pdf - Accepted Author Manuscript
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Carbon dioxide (CO2) measurements are of interest to the aviation industry because of the need to reduce net CO2 emission from aero (“jet”) engines  as well as for engine diagnostics. Chemical Species Tomography (CST) is a technique that uses an optical source for multi-path integrated absorption measurements and from those calculates a 2-dimensional image of target gas concentration . In FLITES , we target CST of CO2 in aero-engine exhaust plumes with diameter up to ~ 1.4 m at wavelengths around 2 μm. Typically, single-path absorption measurements are carried out using distributed feedback (DFB) diode lasers with powers of ~2 mW. For CST, however, it would be necessary to use over one hundred separate paths, and thus laser sources, to achieve adequate spatial and temporal resolution. It is essential that a single CST-capable laser source, with total power above 1 W, is developed and the light distributed into the individual paths using optical fibre components.
|Item type:||Conference or Workshop Item (Paper)|
|Keywords:||aviation industry, engine diagnostics, absorption measurements, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering
Technology and Innovation Centre > Sensors and Asset Management
Faculty of Engineering
|Depositing user:||Pure Administrator|
|Date Deposited:||24 Nov 2014 14:23|
|Last modified:||03 Apr 2017 04:36|