Vertical-Cavity Surface-Emitting Lasers and VCSEL-Based Optical Switches for Parallel Optical Processing.

摘要

The following document reviews advances in the optoelectronic areas supported by the contract. Specifically, monolithic integration of Vertical Cavity Surface Emitting Lasers (VCSELs) arrays with Heterojunction Bipolar Transistors (HBTs) is described for the realization of smart pixels. Latching, non-latching and bistable switching is demonstrated for the arrays. In addition, it is shown that the arrays can perform cascadable Boolean logic. Further, low series resistance and high speed(> 9 GHz) VCSELs were realized while maintaining average output powers of 2-5 mW. Pico-second pulse generation in diode lasers-both edge emitters and VCSELs is reported, and regenerative mode locking is described for both types of device. Optical pumping of RPG-VCSEL structures is described, and the approaches to phase coupled VCSEL arrays is enumerated. Finally, preliminary experiments and models aimed at the understanding of dynamic behavior in VCSELs are presented.