Astrophotonics is the application of photonic technologies to channel, manipulate, and
disperse light from one or more telescopes to achieve scientific objectives in astronomy in …

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

One promising application of photonics to astronomical instrumentation is the miniaturization
of near-infrared (NIR) spectrometers for large ground-and space-based astronomical …

Since its emergence two decades ago, astrophotonics has found broad application in
scientific instruments at many institutions worldwide. The case for astrophotonics becomes …

Spectral filters are important building blocks for many applications in integrated photonics,
including datacom and telecom, optical signal processing and astrophotonics. Sidewall …

An easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed
and experimentally demonstrated. In this design, light from a single-mode fiber can be butt …

We present the design and experimental results of a novel polarization beam splitter (PBS)
with a high polarization extinction ratio (PER) made on a Si_3N_4 platform. The PBS is …

Integrated photonic spectrographs offer an avenue to extreme miniaturization of
astronomical instruments, which would greatly benefit extremely large telescopes and future …

We present a silicon nitride/silicon dioxide add–drop filter operating on arbitrarily spaced
channels using multimode interferometers (MMIs) and complex waveguide Bragg gratings …

We present a chip-based optical beam scanner based on a dispersive optical phased array
(OPA) that illuminates the far field with a pixelated pattern. To scale up the OPA to a large …