Abstract
A multi-channel hybrid integrated light source using a novel spot-size converter with a SiOx slab layer for a wide fabrication margin has been developed that has high output power uniformity. The configuration of the light source was optimized to minimize power consumption by considering of the thermal interference between the channels in a laser diode (LD) array and also between the LD array chips. On the basis of the optimization, a 1,000-channel light source was demonstrated to have an over- 10-Tbit/s bandwidth optical interconnection. The hybrid integrated light source should be easily adaptable to a photonics-electronics convergence system for ultra-high-bandwidth interchip interconnections.