Back-side integration of Hybrid III–V on Silicon DBR lasers

In this paper we demonstrate the monolithic integration of a fully CMOS compatible hybrid DBR laser on the backside of a SOI wafer. This innovative approach allowed implementing CMOS compatible electric interconnects and optical sources on a same chip. The optical characterizations confirm the single wavelength behavior of the realized devices which present a SMSR higher than 35 dB and can be tuned over 4 nm, opening the route to a fully integrated optical transceiver on a Si platform.