Near 100% external quantum efficiency 1550-nm broad spectrum photodetector.

Authors :: Shen Y
Xue X
Jones AH
Peng Y
Gao J
Tzu TC
Konkol M
Campbell JC
Source :: Optics express [Opt Express] 2022 Jan 17; Vol. 30 (2), pp. 3047-3054.
Publication Year :: 2022
Abstract: We report InGaAs/InP based p-i-n photodiodes with an external quantum efficiency (EQE) above 98% from 1510 nm to 1575 nm. For surface normal photodiodes with a diameter of 80 µm, the measured 3-dB bandwidth is 3 GHz. The saturation current is 30.5 mA, with an RF output power of 9.3 dBm at a bias of -17 V at 3 GHz.