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Semiconductor photonic integrated circuits (PICs) refer to that subset of optoelectronic integrated circuits (OEICs) which focus primarily on the monolithic integration of optically interconnected guided-wave optoelectronic devices. The principal motivation for PIC research is the expected cost reduction and packaging robustness associated with replacing individually aligned, single-mode optical connections between discrete optoelectronic devices with lithographically produced integrated waveguides. This field has recently seen significant advances resulting from improved III-V epitaxial crystal growth and related processing techniques. A discussion is presented of the design and fabrication issues, illustrated by a number of recently demonstrated InP-based PICs.>
Koch et al. (Fri,) studied this question.