This contribution summarizes the status of our current development of a novel, high-power and high-linearity photodiode. This photodiode is specifically designed to operate over an exceptionally wide optical input power range from below - 10 dBm up to + 20 dBm without relying on self-biasing effects, making it a versatile solution in many potential analog optical RF applications. The backside illuminated photodiode offers a large active diameter, which enables high coupling efficiency, allows optimization of the optical launch conditions to improve the optical saturation current and linearity as well as to improve the thermal power dissipation, which is required for high power operation. The high-power photodiodes, flip-chip-bonded to their heat-dissipation carriers, have been integrated in a hermetically sealed, rugged package with built-in matching circuit and bias-T. The thermal design and the opto-electrical characterization such as bandwidth and linearity will be presented. Preliminary gamma and proton irradiation testing, have been performed with promising results.

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H. Meier, F. Schaub, V. Liverini, E. Portuondo-Campa, and S. Lecomte, "High-power photoreceivers for large dynamic range: high frequency photonic RF links," Proc. SPIE 11852, International Conference on Space Optics — ICSO 2020, 1185245 (Presented at International Conference on Space Optics — ICSO 2021: 11 June 2021; Published: 11 June 2021); https://doi.org/10.1117/12.2599640.