End-to-end simulations of photonic phase correctors for adaptive optics systems
Optical beams and starlight distorted by atmospheric turbulence can be corrected with
adaptive optics systems to enable efficient coupling into single-mode fibers. Deformable …
adaptive optics systems to enable efficient coupling into single-mode fibers. Deformable …
Astrophotonics-current capabilities and the road ahead
Astrophotonics represents a cutting-edge approach in observational astronomy. This paper
explores the significant advancements and potential applications of astrophotonics …
explores the significant advancements and potential applications of astrophotonics …
Real-time experimental demonstrations of a photonic lantern wave-front sensor
The direct imaging of an Earth-like exoplanet will require sub-nanometric wave-front control
across large light-collecting apertures to reject host starlight and detect the faint planetary …
across large light-collecting apertures to reject host starlight and detect the faint planetary …
The GLINT nulling interferometer: improving nulls for high-contrast imaging
GLINT is a nulling interferometer downstream of the SCExAO extreme-adaptive-optics
system at the Subaru Telescope (Hawaii, USA), and is a pathfinder instrument for high …
system at the Subaru Telescope (Hawaii, USA), and is a pathfinder instrument for high …
Six-telescope integrated optics beam combiner fabricated using ultrafast laser inscription for J-and H-band astronomy
We have built and characterized, to our knowledge, the first six-telescope discrete beam
combiner (DBC) for stellar interferometry in the astronomical J-band. It is the DBC with the …
combiner (DBC) for stellar interferometry in the astronomical J-band. It is the DBC with the …
Experimental demonstration of photonic phase correctors based on grating coupler arrays and thermo-optic shifters
In ground-based astronomy, the ability to couple light into single-mode fibers (SMFs) is
limited by atmospheric turbulence, which prohibits the use of many astrophotonic …
limited by atmospheric turbulence, which prohibits the use of many astrophotonic …
Fiber-connectorized ultrafast-laser-inscribed K-band integrated optics beam combiner for the CHARA telescope array
A fiber-connectorized K-band integrated-optics two-telescope beam combiner was
developed for long-baseline interferometry at the CHARA telescope array utilizing the …
developed for long-baseline interferometry at the CHARA telescope array utilizing the …
Inverse design and optimization of an aperiodic multi-notch fiber Bragg grating using neural networks
Q Yu, BRM Norris, G Edvell, L Luo… - Applied Optics, 2024 - opg.optica.org
Recent developments in the application of aperiodic fiber Bragg gratings (AFBGs) in
astrophotonics, such as AFBG for astronomical near-infrared OH suppression and gas …
astrophotonics, such as AFBG for astronomical near-infrared OH suppression and gas …
Efficient ultra-broadband low-resolution astrophotonic spectrographs
P Gatkine, G Sercel, N Jovanovic, R Broeke… - Optics …, 2024 - opg.optica.org
Broadband low-resolution near-infrared spectrographs in a compact form are crucial for
ground-and space-based astronomy and other fields of sensing. Astronomical spectroscopy …
ground-and space-based astronomy and other fields of sensing. Astronomical spectroscopy …
Low-loss SiGe waveguides for mid-infrared photonics fabricated on 200 mm wafers
V Turpaud, THN Nguyen, H Dely, N Koompai… - Optics …, 2024 - opg.optica.org
This article presents low-loss mid-infrared waveguides fabricated on a Ge-rich SiGe strain-
relaxed buffer grown on an industrial-scale 200 mm wafer, with propagation losses below …
relaxed buffer grown on an industrial-scale 200 mm wafer, with propagation losses below …