Germanium (Ge) has played a key role in silicon photonics as an enabling material for
datacom applications. Indeed, the unique properties of Ge have been leveraged to develop …

Integrated nonlinear photonics provides transformative capabilities for controlling,
enhancing and manipulating material nonlinearities in miniaturized on-chip platforms. The …

Nanophotonics, manipulating light–matter interactions at the nanoscale, is an appealing
technology for diversified biochemical and physical sensing applications. Guided-wave …

We experimentally demonstrate supercontinuum (SC) generation in a germanium-on-silicon
waveguide. This waveguide exhibits propagation loss between 1.2 dB/cm and 1.35 dB/cm in …

Compact and smart optical gas sensors have attracted significant attention over the past few
decades. Among the materials used for developing such gas sensors, group-IV materials …

Photonic integrated circuits (PICs) provide a promising platform for miniaturized on‐chip
optical systems for communication, computation, and sensing applications. The dense …

Germanium is a material of high interest for mid-infrared (MIR) integrated photonics due to
its complementary metal–oxide–semiconductor (CMOS) compatibility and its wide …

Leveraging the low linear and nonlinear absorption loss of silicon at mid-infrared (mid-IR)
wavelengths, silicon photonic integrated circuits (PICs) have attracted significant attention …

In recent years, sensing and communication applications have fueled important
developments of group-IV photonics in the mid-infrared band. In the long-wave range, most …

We present broadband on-chip resonators based on SiGe graded-index waveguides
operating in the long-wave infrared spectral range from 7.5 to 9.0 μm wavelength range. A …