[17p-P02-1~8] 3.13 Semiconductor optical devices

▲ [17p-P02-8] Design and simulation of 1μm Al-free quantum-well SOA

〇(M2)Theophile Seijiro Mascia¹, Yoshiaki Nakano¹ (1.Univ. of Tokyo)

Keywords:optical phased array, semiconductor optical amplifier, photonics

The semiconductor optical amplifier (SOA) is an active device integrated inside an optical phased array (OPA). It finds numerous applications, notably in LiDARs for automotive industry and smart devices. While many research works study 1.55μm wavelength OPA, only a few address OPA at 1μm wavelength and none, SOA at 1μm, whereas 1μm waves offer sharper sensitivity of Si photodetectors (for detection of returning signal from OPA), lower water absorption and solar background noise. Besides, large scale integration of common compounds with aluminum is prone to oxidation during fabrication. Therefore it is also of interest to seek alternatives of active layer structures without Al. This work analyzes several layouts of single quantum wells at 1μm and optimize the active region to achieve the desired features. Two structures are proposed, one with Al as a reference, one without.