ESA Open Invitation to Tender AO9548
Open Date: 14/08/2018
Closing Date: 28/09/2018 13:00:00

Status: ISSUED
Reference Nr.: 18.112.14
Prog. Ref.: Technology Developme
Budget Ref.: E/0901-01 – Technology Developme
Special Prov.: AT+BE+CH+CZ+DE+DK+EE+ES+FI+FR+GB+GR+HU+IE+IT+LU+NL+NO+PL+PT+RO+SE
Tender Type: C
Price Range: 200-500 KEURO
Products: Ground Segment / Ground Station / Antennas / Structure & Thermal, Servo / Mechanics, Reflectors, feeds and diplexers, Antenna Control Units (ACUs), Drive Systems, …/ Ground Segment / Ground Station / RF equipment / Transmitter and Receiver assemblies, Frequency converters, …/ Ground Segment / Ground Station / Baseband equipment / Telemetry and Telecommand equipment, Tracking, Ranging and Doppler measurement equipment, CODECS, …
Techology Domains: Ground Station Systems and Networks / Ground Station System / TT&C, Radar and Optical Signal & Data Processing / Ground Station Systems and Networks / Ground Station System / Advanced Ground Station Design Concepts / Ground Station Systems and Networks / Ground Station System / Ground TT&C and Payload Data Reception Antenna Systems
Establishment: ESOC
Directorate: Directorate of Operations
Department: Ground Systems Engineering Department
Division: Ground Station Systems Division
Contract Officer: Bednarek, Maren
Industrial Policy Measure: C1 – Activities in open competition limited to the non-Larg…
Last Update Date: 14/08/2018
Update Reason: Tender issue

The objective is to assess the most optimum and cost-efficient spectral filtering technique with a bandwidth of a few Angstroem (potentially a narrower, tunable bandwidth to account for the Doppler shift) with high throughput (> 60%) best adapted to a given design of an optical ground antenna and develop a demonstrator prototype for the 1550nm wavelength band. The benefit consists in maximizing the contact duration with the satellite by being able to operate as close to the Sun as possible.The spectral filter is a critical element to reject unwanted background and straylight onto the receive detector during day and night operation.The activity consists in elaborating its optimized design (interference filters vs. fiber Bragg gratings vs. volume Bragg gratings) after trade-offs taking into account the overall design of the optical antenna (e.g. numerical aperture of the beam, tunability vs. spectral width, etc.).The overall cost will depend on the performance(selectivity, out-of-band rejection and in-band throughput) of the filter system, which is a significant driver for the surface quality requirements mainly of the primary mirror.It is a fundamental building block for optical antennas serving (future) missions in all domains (Earth Observations, Science, Telecommunications) that would employoptical links. Asteroid Impact Mission (AIM; launch 2020, Didymos rendez-vous 2022) presents a strategic demonstration opportunity either on ESA’s OGS on Tenerife, or on an existing astronomical telescope by providing the optical receiver chain to the site (including the optical filter as one key element).C1 : Activities in open competition limited to the-non-Large-System Integrators

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