Paper 13369-57
Paper 13369-57
OFDR of a 1050 nm photonic integrated circuit
29 January 2025 • 6:00 PM - 8:00 PM PST | Moscone West, Room 2003 (Level 2)
Abstract
Photonic integrated circuits (PIC) have been used in Optical Coherence Interferometry (OCT) for main OCT interferometers and clock resonators but it is still a nascent field. Two of the most important metrics for such use are the scattering and dispersion. These can be measured using Optical Frequency Domain Reflectometry (OFDR) and Optical Frequency Domain Transmission (OFDT). We use a MEMS tunable VCSEL in the 1050 nm range to perform these measurements.
Presenter
Excelitas Technologies Corp. (United States)
Bart Johnson holds a BEE from the University of Minnesota and a PhD from MIT in electrical engineering. He has held engineering positions at MIT Lincoln Laboratory, AT&T Bell Laboratories, and McDonnell Douglas/Boeing. Since 2000 he has been employed as an electro-optics engineer at Boston-area startups CoreTek (tunable VCSELs), Azna (chirp managed lasers for telecom) and Axsun Technologies. His current position is Director of Electro-Optics Systems Engineering at Axsun involving laser-based NIR spectroscopy and Optical Coherence Tomography (OCT). In OCT, he contributes to electro-optical systems design and testing as well as theoretical modeling of swept laser sources.