High-speed optical transceiver and routing switch using VCSEL-based integrated optoelectronics

Recent advances in the design of high-speed optical switches and transceivers for a reconfigurable, spatially-multiplexed optical interconnection network are described. Monolithic switches based on the integration of vertical-cavity surface-emitting lasers with heterojunction bipolar transistors and photodetectors have achieved switching operation at a data rate of close to 1 Gb/s. Optical transmission experiments through fibers have been carried out using these switches at a data rate between 650 Mb/s and 1 Gb/s. For future improvements in performance, the photonic and electronic elements should be separately integrated and independently optimized. To facilitate photonic integration, VCSELs and resonance-enhanced photodetectors have been integrated on the same substrate.