PROJECT TITLE :

Coupled Cavity Single-Mode Laser Based on Regrowth-Free Integrated MMI Reflectors

ABSTRACT:

A photonic integrated circuit is demonstrated that couples three Fabry–Pérot (FP) lasers along via an integrated star coupler. The FP lasers rely on a standard cleaved side and individual multimode interference reflectors (MIRs) for lasing operation. The MIRs are monolithically integrated with each FP laser using a single growth step, which allows for epitaxial regrowth-free processing. By appropriate independent tuning of each Fabry–Pérot, a single mode operation and a mode selection will be attained from the coupled cavity system. The mode selectivity and aspect-mode suppression ratios of dB are demonstrated.