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

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<strong>TRP</strong> Work Plan 2005-2007<br />

Description of Activities<br />

TEC-SB/7935/dc<br />

12/Feb/09<br />

<strong>TRP</strong> Reference:<br />

Title:<br />

MMO-632<br />

Fiber optical wavefront filtering<br />

The DARWIN system requires wavefront errors of less than lambda/1000 at 5 micron between pairs of telescopes in order to<br />

achieve the required nulling quality. Such high wavefront quality is difficult to achieve without wavefront filtering measures.<br />

The aim here is to establish a wavefront filtering system (WFS) of the DARWIN telescope system. The sub-activities<br />

envisaged are: Establishment of wavefront filtering concepts for the DARWIN system based on single-mode fibres,<br />

Investigation of additional functionality, which can be fulfilled by a fibre-optic system, Design and breadboarding of a<br />

broadband single-mode IR fibres system, Performance Validation of the fibre-optic filtering (and nulling) system.<br />

Deliverables:<br />

Breadboard<br />

Current TRL: TRL2 Target TRL: TRL3 Application Need/Date: TRL5 by 2010<br />

Application/Mission: Darwin<br />

Contract Duration:<br />

SW Clause : - Dossier0 Ref.: T-658<br />

Consistency with Harmonisation<br />

Roadmap and Conclusions:<br />

<strong>TRP</strong> Reference:<br />

Title:<br />

Fiber optical wavefront filtering ph.1<br />

The DARWIN system requires wavefront errors of less than lambda/1000 at 5 micron between pairs of telescopes in order to<br />

achieve the required nulling quality. Such high wavefront quality is difficult to achieve without wavefront filtering measures.<br />

The aim here is to establish a wavefront filtering system (WFS) of the DARWIN telescope system. The sub-activities<br />

envisaged are: Establishment of wavefront filtering concepts for the DARWIN system based on single-mode fibres,<br />

Investigation of additional functionality, which can be fulfilled by a fibre-optic system, Design and breadboarding of a<br />

broadband single-mode IR fibres system, Performance Validation of the fibre-optic filtering (and nulling) system.<br />

Deliverables:<br />

Breadboard<br />

Current TRL: TRL2 Target TRL: TRL3 Application Need/Date: TRL5 by 2010<br />

Application/Mission: Darwin<br />

Contract Duration:<br />

SW Clause : - Dossier0 Ref.: T-658<br />

Consistency with Harmonisation<br />

Roadmap and Conclusions:<br />

<strong>TRP</strong> Reference:<br />

Title:<br />

Fiber optical wavefront filtering Ph.2<br />

The DARWIN system requires wavefront errors of less than lambda/1000 at 5 micron between pairs of telescopes in order to<br />

achieve the required nulling quality. Such high wavefront quality is difficult to achieve without wavefront filtering measures.<br />

The aim here is to establish a wavefront filtering system (WFS) of the DARWIN telescope system. The sub-activities<br />

envisaged are: Establishment of wavefront filtering concepts for the DARWIN system based on single-mode fibres,<br />

Investigation of additional functionality, which can be fulfilled by a fibre-optic system, Design and breadboarding of a<br />

broadband single-mode IR fibres system, Performance Validation of the fibre-optic filtering (and nulling) system.<br />

Deliverables:<br />

Breadboard<br />

Current TRL: TRL2 Target TRL: TRL3 Application Need/Date: TRL5 by 2010<br />

Application/Mission: Darwin Contract Duration: 24 months<br />

SW Clause : - Dossier0 Ref.: T-658<br />

Consistency with Harmonisation<br />

Roadmap and Conclusions:<br />

Page 44 of 227

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