EPJ Web of Conferences (Jan 2016)

Performances of a HGCDTE APD Based Detector with Electric Cooling for 2-μm DIAL/IPDA Applications

  • Dumas A.,
  • Rothman J.,
  • Gibert F.,
  • Lasfargues G.,
  • Zanatta J-P.,
  • Edouart D.

DOI
https://doi.org/10.1051/epjconf/201611925008
Journal volume & issue
Vol. 119
p. 25008

Abstract

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In this work we report on design and testing of an HgCdTe Avalanche Photodiode (APD) detector assembly for lidar applications in the Short Wavelength Infrared Region (SWIR : 1,5 - 2 μm). This detector consists in a set of diodes set in parallel -making a 200 μm large sensitive area- and connected to a custom high gain TransImpedance Amplifier (TIA). A commercial four stages Peltier cooler is used to reach an operating temperature of 185K. Crucial performances for lidar use are investigated : linearity, dynamic range, spatial homogeneity, noise and resistance to intense illumination.