18 July 2014 New generation of photonic lanterns for mid-IR astronomy
Author Affiliations +
We report the fabrication and characterization of prototype femtosecond-laser direct-written integrated photonic lanterns for operation in the mid-infrared (mid-IR). The devices were inscribed inside the bulk of a commercial gallium lanthanum sulphide (GLS) chalcogenide glass substrate and the characterization was performed using monochromatic light with a wavelength of 3.39 μm. We demonstrate that these proof-of-concept devices are capable of coupling specific multimode states of light into an array of single-modes, and vice-versa, with low-loss. In the future, instruments that utilize the single-moded output of such components may find applications in areas such as heterodyne spectroscopy, interferometry and remote sensing.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Arriola, A. Arriola, D. Choudhury, D. Choudhury, R. R. Thomson, R. R. Thomson, "New generation of photonic lanterns for mid-IR astronomy", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915116 (18 July 2014); doi: 10.1117/12.2056526; https://doi.org/10.1117/12.2056526

Back to Top