Time-domain optical coherence tomography at 2 $μ\mathrm{m}$ using GaSb-based broadband superluminescent diode

arXiv (Cornell University) 2026 Preprint Open access

Read full text
Authors: Ifte Khairul Alam Bhuiyan, Alejandro Martínez Jiménez, Ramona C. Cernat, Adrian Fernandez Uceda, Joonas Hilska, Markus Peil, Manuel Jorge M. Marques, George Mihai Dobre, Jukka Viheriälä, Adrian Gh. Podoleanu, Mircea D. Guina
DOI: 10.48550/arxiv.2601.22261
Cited by: 0

Abstract

We report a time-domain optical coherence tomography (TD-OCT) system operating in the 2 $μ\mathrm{m}$ spectral region, enabled by a GaSb-based superluminescent diode (SLD). The spectrum emitted by the SLD exhibits a full-width half-maximum (FWHM) of $\sim$80 nm centred near 2.1 $μ\mathrm{m}$. For OCT operation, stable amplified spontaneous emission with low spectral ripple ($

Fields of Study & Subjects

Optical Coherence Tomography Applications Semiconductor Lasers and Optical Devices Random lasers and scattering media

Publication details

Journal / source
arXiv (Cornell University)
Publication date
29 January 2026
Document type
Preprint