Projects per year
Abstract
Carbon dioxide (CO2) measurements are of interest to the aviation industry because of the need to reduce net CO2 emission from aero (“jet”) engines [1] 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 [2]. In FLITES [3], 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.
Original language | English |
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Number of pages | 1 |
Publication status | Published - Aug 2014 |
Event | Europhoton 2014 - Neuchatel, Switzerland Duration: 24 Aug 2014 → 29 Aug 2014 |
Conference
Conference | Europhoton 2014 |
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Country/Territory | Switzerland |
City | Neuchatel |
Period | 24/08/14 → 29/08/14 |
Keywords
- aviation industry
- engine diagnostics
- absorption measurements
Fingerprint
Dive into the research topics of 'LD-seeded thulium-doped fibre amplifier for CO2 measurements at 2 µm'. Together they form a unique fingerprint.Projects
- 1 Finished
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FLITES: Fibre Laser Imaging For Gas Turbine Exhaust Species (FLITES)
EPSRC (Engineering and Physical Sciences Research Council)
1/06/12 → 28/02/17
Project: Research
Research output
- 1 Poster
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Fibre laser imaging of gas turbine exhaust species – a review of CO2 aero engine imaging
Lengden, M., Wilson, D., Armstrong, I., Benoy, T. & Johnstone, W., Jul 2015.Research output: Contribution to conference › Poster › peer-review