After dominating the electronics industry for
decades, silicon is on the verge of becoming the material of choice
for the photonics industry: the traditional stronghold of III-V
semiconductors. Stimulated by a series of recent breakthroughs
and propelled by increasing investments by governments and
the private sector, silicon photonics is now the most active
discipline within the field of integrated optics. This paper provides
an overview of the state of the art in silicon photonics and
outlines challenges that must be overcome before large-scale
commercialization can occur.
Fundamentals of Silicon Photonic Devices
This paper offers a brief introduction to silicon photonics including the basic optical waveguide, passive
optical circuit performance, the addition of doped p- and n- junctions adjacent to the intrinsic silicon
waveguide to inject a current across the waveguide, free-carrier dispersion, performance of the variable
optical attenuator (VOA), and a monolithic, dual-function splitter-VOA array circuit.