document title / titre du document TRP W ORK PLAN ... - emits - ESA

TRP Work Plan 2005-2007
Description of Activities
TEC-SB/7935/dc
12/Feb/09
TRP Reference:
T103-28MM
High Energy Fiber-based Laser and Receiver development in the 2 micron region for
Title:
atmospheric CO2 and other greenhouse gases measurements
In the context of the third cycle of Earth Explorer Core Missions the Agency is currently investigating the technical feasibility of
an active optical sensing mission to measure the concentration of atmospheric carbon dioxide (CO2). A spaceborne
Differential Absorption Lidar operating at the near-infrared absorption band of CO2 around 2.05 micron constitutes one of the
candidate measurement concepts. Regarding the required system performance it appears that the use of pulsed laser
sources with an average power on the several Watts level offers advantages over modulated continuous-wave (CW) laser
based concepts. In the parameter regime of modest laser pulse energy (mJ level) and kHz pulse repetition rates an all-fibre
laser concept is a promising candidate. Given its intrinsically high optical efficiency, system compactness and alignment
insensitivity a fibre laser offers significant assets for spaceborne implementation. On the other hand the targeted fibre laser
system will have to tackle major technological challenges that come with the combination of cutting-edge pulse energies out of
a fibre and highly demanding spectral requirements in particular on centre wavelength stability and spectral purity. This activity
will address the development of a laser diode pumped all-fibre laser source at 2.05 micron for spaceborne CO2
measurements.
Deliverables:
Technology demonstrators of Tx/Rx key elements.
Current TRL: TRL2 Target TRL: TRL4-5 Application Need/Date: TRL5 by 2010
Application/Mission: A-Scope Mission Contract Duration: 18 months
SW Clause : - Dossier0 Ref.: T-419
Consistency with Harmonisation
Roadmap and Conclusions:
Lidar Critical Solid-state Components
TRP Reference: T104-13MM
Title:
Instrument technology for fluorescence
This activity will address the development of critical technologies for the measurement of fluorescence from low Earth orbit
satellites (fluorosensors). The FLEX mission aims to produce global scale maps of vegetation photosynthetic activity
contributing to biosphere and global carbon cycle studies. The mission is based on a three-instrument system for measuring
plant fluorescence, multi-angle hyperspectral reflectance and canopy temperature. Early instrument pre-development shall be
dedicated to the demonstration of the feasibility to measure the weak fluorescence signals over heterogeneous natural
vegetation and to achieve high spectral resolution and spectral stability across a large field-of-view.
Deliverables:
Breadboard of critical instrument core unit demonstrating the achievable sensitivity of the fluorosensor.
Current TRL: TRL0-1 Target TRL: TRL3 Application Need/Date: TRL5 by 2011
Application/Mission:
FLEX (Fluorescence Explorer) mission
(selected for assessment studies for third
cycle Earth Explorer Core Mission)
Contract Duration:
18 months
SW Clause : - Dossier0 Ref.: T-419
Consistency with Harmonisation
Not directly linked to harmonised technology.
Roadmap and Conclusions:
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