ESA Intended Invitation To Tender

18.1TT.95


Title: MULTIPLE OPTICAL RECEIVE SYSTEM FOR A SINGLE OPTICAL TERMINAL (ARTES AT 5C.385 (SL.017 B)) (ON DELEGATION REQUEST)
Program ref.: CC for Advanced Tech
Tender Type: C
Quarter: 184
Tender Status: INTENDED
Price Range: > 500 KEURO
Budget Ref.: E/0505-01C - CC for Advanced Tech
Proc. Prop.: DIPC
Special Prov.: BE+DK+FR+DE+IT+NL+ES+SE+CH+GB+IE+AT+NO+FI+PT+GR+LU+CZ+RO+CA
Establishment: ESTEC
Directorate: Directorate Telecom & Integrated Applica
Department: Telecom Technologies,Product&Systems Dep
Division: Technologies and Products Division
Responsible: Schmitt, Dietmar
Products: Satellites & Probes / Optical Communication / Optical Comm. / Optical terminals
Techology Domains: Optoelectronics / Detector Technologies / Infrared detectors. (NIR┐FIR)
Industrial Policy Measure: N/A - Not apply
Publication Date: 07-JAN-19

Objective: The objective of the activity is to develop the corresponding technology and demonstrate the feasibility of a single optical terminal on-board a geostationary spacecraft capable of receiving data from multiple optical ground stations. Targeted Improvements: Reduction of the number of on-board optical terminals by a factor of three to ten. Description: Optical feeder-links require multiple (e.g. >10) ground stations to mitigate cloud coverage, within any given coverage area. Fast switching between these ground stations, as needed, is essential. Current optical communication systems (e.g. EDRS) need a relatively long reacquisition process forswitching between locations. Fast switching would be feasible if the locations of all optical ground stations contributing to the feeder-link were fixed and imaged onto a focal plane by the space terminal's telescope, similar to the process used in astrophysics for monitoring multiple stars with a single optical telescope. One possible approach could be to populate the focal plane with fibre optical pick-ups (receivers), one for each of the ground station locations. In this activity, an optical communication terminal breadboard shall be designed, manufactured and tested. The terminal shall be capable of keeping multiple ground stations (>10) in its field-of-view and have the capability to instantly switch between any two of them. The breadboard shall demonstrate the seamless switchover between two ground stations, with the required accuracy, together with the optimised concept of operations. footnote: On Delegation Request (formerly called Priority 2) activities will only be initiated on the explicit request of at least one National Delegation.