Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Since the invention of the silicon subwavelength grating waveguide in 2006, subwavelength
metamaterial engineering has become an essential design tool in silicon photonics …

Large-scale photonic switches are essential components for photonic circuits for classical
and quantum applications. To develop high-performance large-scale photonic switches, we …

Mid-infrared spectroscopy enabled by silicon photonics has received great interest in recent
years as a pathway for a scalable sensing technology. The development of such devices …

High-index contrast silicon waveguides exhibit strong birefringence that hinders the
development of polarization-insensitive devices, especially for sub-micrometer silicon layer …

Optical switches play key role in signal crossing and interconnection. Low-loss and compact
optical switches are highly demanded in on-chip optical routing. A silica waveguide 1× 8 …

Increasing the working optical bandwidth of a photonic circuit is important for many
applications, in particular chemical sensing at mid-infrared wavelengths. This useful …

Optical switches are important in signal routing and switching. In this paper, a thermal optical
switch with trapezoidal air trenches is proposed. The proposed structure consists of two …

Silicon photonics technology leverages the mature fabrication processes of the semi-
conductor industry for the large volume production of opto-electronic devices …

Silicon photonics is an enabling platform for high-speed optical communications and
sensing. Here we review some recent advances in building devices with breakthrough …