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Proceedings Paper

Proton and gamma radiation testing of 10 GHz bandwidth, uncooled, linear InGaAs optical receivers
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Paper Abstract

We have successfully tested 10 GHz bandwidth, uncooled, linear InGaAs optical receivers, coupled with a standard single mode fiber for proton and gamma rays. These devices find multiple applications in space for inter-satellite optical communication links, rapid Doppler shift lidar, as well as inter-planetary and Earth-to-Moon communication links. Nine InGaAs PIN photodiode and GaAs transimpedance amplifiers (TIA) were irradiated with 100 MeV protons with a fluence level of 1.6 × 1011 cm-2 corresponding to a total dose of 19.1 krad (water). Devices were also subjected to 30 MeV protons, six each with fluence levels of 4.9 × 1010 cm-2 , 9.8 × 1010 cm-2 , and 1.6 × 1011 cm-2 . Additionally, another nine InGaAs optical receivers were irradiated with 662 keV gamma rays, three devices each for a dose of 15 krad (water), 30 krad (water), and 50 krad (water). Pre- and post-radiation results were measured for (1) dark current vs. voltage for the InGaAs photodiodes, (2) responsivity (quantum efficiency) for the photodiodes, (3) optical return loss at 1550 nm wavelength, (4) drive current of the TIA, and (5) bandwidth of the PIN + TIA. All devices were found to be fully functional at the normal operating conditions and at room temperature.

Paper Details

Date Published: 28 May 2019
PDF: 12 pages
Proc. SPIE 11017, Sensors and Systems for Space Applications XII, 110170D (28 May 2019); doi: 10.1117/12.2518659
Show Author Affiliations
Abhay M. Joshi, Discovery Semiconductors, Inc. (United States)
Shubhashish Datta, Discovery Semiconductors, Inc. (United States)
Ryan Miller, Discovery Semiconductors, Inc. (United States)
Nilesh Soni, Discovery Semiconductors, Inc. (United States)
Matthew D'Angiolillo, Discovery Semiconductors, Inc. (United States)
Jeffrey Mertz, Discovery Semiconductors, Inc. (United States)
Michael Sivertz, NASA Space Radiation Lab. (United States)
Adam Rusek, NASA Space Radiation Lab. (United States)
James Jardine, Brookhaven National Lab. (United States)

Published in SPIE Proceedings Vol. 11017:
Sensors and Systems for Space Applications XII
Genshe Chen; Khanh D. Pham, Editor(s)

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