Open AccessDoppler optical frequency domain reflectometry for remote fiber sensing
Author(s) -
Max Koeppel,
Abhinav Sharma,
Jasper Podschus,
Sanju Sundaramahalingam,
Nicolas Y. Joly,
Shangran Xie,
P. St. J. Russell,
Bernhard Schmauß
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.421842
Subject(s) - reflectometry , optics , doppler effect , photonic crystal fiber , optical fiber , materials science , image resolution , frequency domain , spatial frequency , time domain , physics , computer science , astronomy , computer vision
Coherent optical frequency domain reflectometry has been widely used to locate static reflectors with high spatial resolution. Here, we present a new type of Doppler optical frequency domain reflectometry that offers simultaneous measurement of the position and speed of moving objects. The system is exploited to track optically levitated "flying" particles inside a hollow-core photonic crystal fiber. As an example, we demonstrate distributed temperature sensing with sub-mm-scale spatial resolution and a standard deviation of ∼10°C up to 200°C.