The European Space Agency Tender

Optical Straylight Characterization Of Critical Components And Radiometric/spectral On-ground Characterisation/calibration Are Vital To Meet Thesystem Requirements Of Optical Payloads, From Cubesats To Large Earth Observation Payloads. Typically, Satellite Projects Are Procuring Dedicated Optical Ground Support Equipment (ogse) For The Calibration And Validation Campaigns Consisting Of Various Calibration Sources (thermal Emitters, Lightemitting Diodes Or Lasers) And An Optical Bench Adapted To The Payload. Rather Than Using Different Source Types It Would Be Beneficial To Have A Single Universallight Source Covering The Needs Of Several Missions.the Most Challenging Requirements For These Sources Are The Coverage Of A Broad Spectral Band From Ultra-violet To The Infrared, A Narrow Spectral Emission,sufficient Output Power And High Reliability. All These Parameters Combined Within A Single System Will Ensure A Failure-free Operation During The Resource Intensivecalibration And Characterisation Campaign. A Continuous Wave Tunable Laser System Will Be The Most Suitable Solution To Meet Those Requirements For Differentmissions. The Availability Of Such Tunable Lasers Will Enhance The Versatility Of Ogse And Reduce Cost Through The Reuse Of The Source.the Objective Of This Activity Is To Develop And Build An Engineering Model Of An Illumination System For An Optical Instrument Calibration Ogse Based Onindividually Tunable Laser Modules. This Will Cover The Relevant Wavelength Optical Instrument Calibration.the Following Tasks Are Foreseen In This Activity: Assessment Of Current Continuous Wave Laser-based Illumination Sources. Conceptual Design Of The Overall Laser System. Detailed Design Of The Individual Building Blocks Modules And An Engineering Model Of The Entire System Including Control Software.manufacture, Assemble, Align, And Test The Engineering Model. Demonstrate The Suitability Of The System In A Representative Ogse Setup.note: This Activity Is Currently In The Gstp Work Plan But Will Only Be Implemented After Confirmation Of Financial Support From Delegations. The Final List Of Participating States Will Be Known At Tender Issue.