High-saturation-current InGaAs/InAlAs charge-compensated uni-traveling-carrier photodiode

Charge compensation is utilized to reduce space charge compression in a photodiode. Here we demonstrate an InGaAs/InAlAs uni-traveling-carrier photodiode with a charge compensated InAlAs depletion layer. A bandwidth of 20 GHz and saturation current of 45 mA are demonstrated. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)