title: Cubic meter volume optical coherence tomography.
abstract: Optical coherence tomography (OCT) is a powerful three-dimensional (3D) imaging modality with micrometer-scale axial resolution and up to multi-GigaVoxel/s imaging speed. However, the imaging range of high-speed OCT has been limited. Here, we report 3D OCT over cubic meter volumes using a long coherence length, 1310 nm vertical-cavity surface-emitting laser and silicon photonic integrated circuit dual-quadrature receiver technology combined with enhanced signal processing. We achieved 15 µm depth resolution for tomographic imaging at a 100 kHz axial scan rate over a 1.5 m range. We show 3D macroscopic imaging examples of a human mannequin, bicycle, machine shop gauge blocks, and a human skull/brain model. High-bandwidth, meter-range OCT demonstrates new capabilities that promise to enable a wide range of biomedical, scientific, industrial, and research applications.
authors.affiliation: Department of Electrical Engineering & Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Department of Electrical Engineering & Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA; Advanced Imaging Group, Thorlabs Inc., Newton, New Jersey 07860, USA.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Potsaid
authors.affiliation: Acacia Communications Inc., Maynard, Massachusetts 01754, USA.
authors.forename: Long
authors.initials: L
authors.lastname: Chen
authors.affiliation: Acacia Communications Inc., Maynard, Massachusetts 01754, USA.
authors.forename: Chris
authors.initials: C
authors.lastname: Doerr
authors.affiliation: Department of Electrical Engineering & Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: Hsiang-Chieh
authors.initials: HC
authors.lastname: Lee
authors.affiliation: Acacia Communications Inc., Maynard, Massachusetts 01754, USA.
authors.forename: Torben
authors.initials: T
authors.lastname: Nielson
authors.affiliation: Praevium Research Inc., Santa Barbara, California 93111, USA.
authors.forename: Vijaysekhar
authors.initials: V
authors.lastname: Jayaraman
authors.affiliation: Advanced Imaging Group, Thorlabs Inc., Newton, New Jersey 07860, USA.
authors.forename: Alex E
authors.initials: AE
authors.lastname: Cable
authors.affiliation: Department of Electrical Engineering & Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA; Acacia Communications Inc., Maynard, Massachusetts 01754, USA.
authors.forename: Eric
authors.initials: E
authors.lastname: Swanson
authors.affiliation: Department of Electrical Engineering & Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: James G
authors.initials: JG
authors.lastname: Fujimoto