Ultrafast temporal SU(1,1) interferometer

Sara Meir; Eliahu Cohen; Moti Fridman

doi:10.1117/12.3002696

13 March 2024 Ultrafast temporal SU(1,1) interferometer

Sara Meir, Eliahu Cohen, Moti Fridman

Proceedings Volume PC12912, Quantum Sensing, Imaging, and Precision Metrology II; PC129123V (2024) https://doi.org/10.1117/12.3002696
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

Interferometers are highly sensitive measurement devices that map phase changes into intensity changes. Those classical interferometers have a sensitivity limit that cannot be beaten by classical approaches. SU(1,1) interferometers can surpass that shot-noise limit and improve the sensitivity by quantum approach of employing squeezed states of light and destructive interference of the noise. We developed and demonstrated a temporal SU(1,1) interferometer by utilizing two time lenses in a 4f configuration. We achieved three advantageous in addition to the improved sensitivity of SU(1,1) interferometers; The first one is the high temporal resolution we reach by applying time lenses. The second is simultaneously measuring interference in time and frequency domains in single shot measurement. Third, our temporal SU(1,1) interferometer is sensitive to the phase derivative and can detect ultrafast phase changes.

Conference Presentation

Citation Download Citation

Sara Meir, Eliahu Cohen, and Moti Fridman "Ultrafast temporal SU(1,1) interferometer", Proc. SPIE PC12912, Quantum Sensing, Imaging, and Precision Metrology II, PC129123V (13 March 2024); https://doi.org/10.1117/12.3002696

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