HYBRID LIGHT SOURCES FOR A PHOTONIC INTEGRATED CIRCUIT, WHICH INCLUDES AN OPTICAL MODE ALIGNMENT LAYER FOR ACCURATE OPTICAL MODE ALIGNMENT IN CHIP BONDING

摘要

PURPOSE: Hybrid light sources for a photonic integrated circuit are provided to increase a coupling efficiencies of resonance modes of resonators and/or waveguide modes of optical waveguides.;CONSTITUTION: A light source (10) for a photonic integrated circuit comprises a reflection coupling layer (20), an optical mode alignment layer (50), and an upper structure (70). The reflection coupling layer is formed on a substrate in which an optical waveguide is provided, and at least one side of the reflection coupling layer is optically connected to the optical waveguide. The optical mode alignment layer is provided on the reflection coupling layer. The upper structure is provided on the optical mode alignment layer and includes an active layer for generating light and a refection layer on the active layer. The optical mode alignment layer comprises a higher refractive index area arranged at a center portion and a lower refractive index area arranged around the higher refractive index area.;COPYRIGHT KIPO 2013