Publications (23)
Compact orbital-angular-momentum multiplexing via laser-written glass chips
Chenhao Li, Simon Gross, Leonardo de S. Menezes +3
Orbital angular momentum (OAM) modes have emerged as a promising solution for enhancing the capacity of optical multiplexing systems, leveraging their theoretically unbounded set o…
Low Bend Loss, High Index, Composite Morphology Ultra-fast Laser Written Waveguides for Photonic Integrated Circuits
Andrew J. Ross-Adams, Toney T. Fernandez, Michael J. Withford +1
We demonstrate a novel, composite laser written 3D waveguide, fabricated in boro-aluminosilicate glass, with a refractive index contrast of 1.12 x 10^-2. The waveguide is fabricate…
Interferometric Beam Combination with a Triangular Tricoupler Photonic Chip
Jonah T. Hansen, Michael J. Ireland, Andrew Ross-Adams +4
Beam combiners are important components of an optical/infrared astrophysical interferometer, with many variants as to how to optimally combine two or more beams of light to fringe-…
Integrated photonic building blocks for next-generation astronomical instrumentation I: the multimode waveguide
Nemanja Jovanovic, Izabela Spaleniak, Simon Gross +5
We report on the fabrication and characterization of composite multimode waveguide structures that consist of a stack of single-mode waveguides fabricated by ultrafast laser inscri…
Achromatic photonic tricouplers for application in nulling interferometry
Marc-Antoine Martinod, Peter Tuthill, Simon Gross +3
Integrated-optic components are being increasingly used in astrophysics, mainly where accuracy and precision are paramount. One such emerging technology is nulling interferometry t…
Integrated photonic building blocks for next-generation astronomical instrumentation II: the multimode to single mode transition
Izabela Spaleniak, Nemanja Jovanovic, Simon Gross +3
There are numerous advantages to exploiting diffraction-limited instrumentation at astronomical observatories, which include smaller footprints, less mechanical and thermal instabi…