US Patent 7974504 Reflection suppression in a photonic integrated circuit

Embodiments of the present invention provide systems, devices and methods in which optical reflections are reduced in a photonic integrated circuit. These embodiments include reflection suppression elements which operate to dissipate optical energy that would otherwise provide a source for optical reflections which may impact the operation of one or more devices within the photonic integrated circuit. In particular, within photonic integrated circuits incorporating semiconductor optical amplifiers, embodiments of the present invention include reflection suppression elements which operate to dissipate optical energy preventing the semiconductor optical amplifiers from operating in a gain-clamped mode.