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

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TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 6.16 - Optics & Opto-Electronics TRP Reference: MMO-670 Materials for Ultra-Stable Lightweight Optical Benches and Mirrors (old title: Ultra Title: lightweight Telescopes) Objective of the activity is the evaluation/development of material technologies for ultra-stable optical structures. The materials should be suitable for cryogenic applications (i.e. homogeneity, isotropy) and lightweight applications. In view of the development status reached for SIC100 (e.g. Herrschel), other materials shall be considered. During the course of this activity, a representative optical structure demonstrator (optical bench, mirror, telescope) shall be developed and extensively characterized. Alternative material or technologies (shell technologies) shall be considered. Deliverables: Material characterisation Data Current TRL: TRL2 Target TRL: TRL3-4 Application Need/Date: TRL5 by 2010 Applicability (>2010) to SCI/EO missions Application/Mission: Contract Duration: 24 months (e.g. Darwin, MTG) SW Clause : - Dossier0 Ref.: T-731 Consistency with Harmonisation Roadmap and Conclusions: TRP Reference: T507-06MM Title: Entangled photon source for Quantum Communications Absolute (=unbreakable) security is a mandatory requirement in many space applications (satellite remote control, GALILEO, etc). Quantum cryptography provides a scheme for the absolute secure distribution of cryptographic keys, guaranteeing such stringent level of secure communications. ESA has placed two parallel studies entitled "Quantum Communications in Space” in the General Studies Programme (GSP). These studies have identified novel concepts for space communication systems based on the principles of quantum physics, along with related demonstration experiments using available infrastructure (e.g. ESA’s Optical Ground Station). Such experiments require the development of a quantum communication optical terminal. The objective of this activity is to initiate the development of the key building blocks of such a quantum communication optical terminal by the development of an efficient entangled photon source module that potentially could be used in space. Such a source is mandatory to perform fundamental tests of quantum physics and to implement quantum communication protocols based on entanglement (e.g. quantum teleportation, quantum dense coding). An entangled photon source can also be used as a single photon source. A complete quantum communication optical terminal in space would provide the capability of distributing entangled photon pairs to 2 separated receiver terminals (e.g. 2 Optical Ground Stations) simultaneously. Such a capability would be of great importance for absolute secure key distribution between widely separated points on Earth using the principle of quantum cryptography based on entanglement. Current terrestrial optical fibre networks limit the maximum separation of users to about 100 km. Later developments of a complete quantum communication optical terminal would require further items such as: • Single photon detection module • Faint laser source module • Optical components for photon manipulation • Dual telescope opto-mechanical head • Data acquisition and classical communication channel. Deliverables: Experimental proof-of-concept demonstration of entangled photon source. Current TRL: TRL2 Target TRL: TRL3 Application Need/Date: TRL5 >2010 Security applications (satellite remote Application/Mission: Contract Duration: control, GALILEO, ..) SW Clause : - Dossier0 Ref.: Consistency with Harmonisation Roadmap and Conclusions: 18 months Page 187 of 227
TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 TRP Reference: Title: T609-05MM Instrument concepts using dynamic diffraction gratings (ICDDG) The ongoing commercial development and exploitation of MEMS technologies has led recently to the availability of a new device type called "programmable micro diffraction gratings" (PMDG). Such devices are a key "enabling technology" for many potential applications in telecommunications (e.g. add-drop mutiplexers), Earth observation and remote sensing (e.g. reconfigurable correlation spectroscopy of trace and toxic species) etc. The possibilities are endless. As with all MEMS type devices one of the big advantages of PMDGs is their small size and programmability. In addition on first inspection they appear to be very robust. With mass production the unit cost will certainly decrease and their use for the construction of small but powerful sensor systems on micro or nano sats is a very attractive option. In this activity it is proposed to procure a PMDG device(s) from the US and to investigate its performance under laboratory conditions. In addition once it has been characterized and understood from an operational point of view, it will then be built into a breadboard spectrometer for functional testing. The breadboard spectrometer design will be optimized to take full advantage of the performance and novel characteristics of this US PMDG device. Deliverables: Fully characterized PMDGS devices Current TRL: - Target TRL: TRL2 Application Need/Date: TRL5 by 2011 Application/Mission: Small EO missions, planetray research Contract Duration: 12 months SW Clause : - Dossier0 Ref.: T-7861 Consistency with Harmonisation Roadmap and Conclusions: TRP Reference: T609-16MM Title: Advanced Side-pumping Technique for Double Clad Fiber Lasers Double-clad fibre lasers allow for very improved pumping (optical to optical) efficiencies as well as higher absolute powers by maximizing the pump - active region overlap and matching to both pump and output wavelength. This activity is aimed to investigate an advanced side-pumping technique by using small coupling grooves in the cladding allowing elegant redundancy implementation of the pump system and system miniaturization. Deliverables: Laboratory test setup demonstrating the achieved pumping efficiency and absolute power of the proposed advanced pumping scheme. Current TRL: TRL1 Target TRL: TRL2 Application Need/Date: TRL5 by 2010 Application/Mission: generic Lidar technologies Contract Duration: 24 months SW Clause : - Dossier0 Ref.: T-7884 Consistency with Harmonisation Not directly linked to harmonised technology. Roadmap and Conclusions: Page 188 of 227
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