Abstract
A brief overview of silicon photonics is given here in order to provide a context for invited and contributed papers in this special issue. Recent progress on silicon-based photonic components, photonic integrated circuits, and optoelectronic integrated circuits is surveyed. Present and potential applications are identified along with the scientific and engineering challenges that must be met in order to actualize applications. Some on-going government-sponsored projects in silicon optoelectronics are also described.
Highlights
We are fortunate in this special issue to have authoritative invited papers written by key contributors to the field silicon-based photonics
photonic integrated circuits (PICs) are important in their own right, but the main driver today of the Si photonics field is the quest for low-cost large-scale-integrated optoelectronic integrated circuits (OEICs) manufactured in state-of-the-art high-volume silicon CMOS foundries
To attain a smaller-than-ring mode volume in a laser resonator, the Ge nanolasers and the nanoscale Ge photodetectors presented here in Figure 1 would each have an inline Fabry-Perot cavity created by a pair of 1D photonic crystal (PC) “mirrors” in a silicon strip waveguide as illustrated in the enlarged top view of Figure 2
Summary
We are fortunate in this special issue to have authoritative invited papers written by key contributors to the field silicon-based photonics. The forward-looking papers here highlight the “technical momentum” that has built up in silicon photonics. They describe discoveries in science and technology that are being made worldwide at an increased rate thanks to the ramped-up investment by industry, universities, and governments [1, 2]. Products are being developed (Luxtera, Kotura, SiLight). This is the beginning of optoelectronic (OE) manufacturing on a much wider scale [3]. I will review recent achievements in Si-based photonic integrated circuits (PICs) and optoelectronic integrated circuits (OEICs). I will pinpoint important challenges for the emerging OE industry, and I will identify applications that will be actualized if and when those challenges are met
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