Wavelength-Tunable Resonant Cavity-Enhanced Photodetector Array Using Quantum Confined Stark Effect

In this study, we present a wavelength-tunable resonant cavity-enhanced photodetector (RCE-PD) with InGaAs/InAlAs multiple quantum wells using the Quantum Confined Stark Effect (QCSE). The tuning of the resonant wavelength is performed using the refractive index change associated with the absorption change when the QCSE occurs. Calculations of tunable RCE-PD’s quantum efficiency, measurements of spectral response characteristics of its fabricated device, and its temperature dependence will be discussed.