Paper 13100-95
Paper 13100-95
Ultrafast laser inscription of achromatic phase shifters for the GLINT integrated nulling interferometer
20 June 2024 • 14:35 - 14:50 Japan Standard Time | Room G214, North - 2F
Abstract
Using ultrafast laser inscription, a 2mm long 180° differential achromatic phase shifter was fabricated in borosilicate glass. An average phase shift of 171 ± 6° was measured between 1440-1640nm. Strategies to improve the phase shifters’ accuracy and fabrication tolerances are also discussed.
Presenter
Glen Douglass
Macquarie Univ. (Australia)
Glen Douglass completed his Ph.D. in 2021 from Macquarie University, Sydney, specializing in integrated device fabrication using ultrafast laser inscription. Currently a Research Fellow at Macquarie University, he collaborates with the Subaru telescope on the GLINT nulling interferometer, focusing on developing integrated photonic circuits.