Modeling of Cascaded Phase Sensing in Optical Fiber Using Squeezed Light
ORAL
Abstract
A key aspect of quantum optics and quantum metrology is the ability to measure beyond the classical (shot-noise) limit with certain photonic states. We present a layout for squeezing-enhanced multiparameter phase sensing in optical fibers. This sensor has its measurable phases in series, or cascaded, with evenly spaced Bragg reflectors defining the regions of fiber for those phase shifts. We discuss our model of this sensor, and how a bidirectional input configuration realizes nearly all of the potential enhancement from using squeezed light. Moreover, this quantum enhancement persists when these phases are highly correlated. Scaling up to many phases is feasible with a similarly large number of input pulses. This novel approach offers new perspectives on distributed fiber sensing and on multiparameter quantum metrology.
*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. It was also supported by: National Science Foundation (CCF 1838435) and NSF Quantum Leap Challenge Institutes Office of Multidisciplinary Activities–2016244
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Publication: Modeling of Cascaded Phase Sensing in Optical Fiber Using Squeezed Light (in preparation for Physical Review Letters)
Presenters
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Gregory R Krueper
- University of Colorado, Boulder