Related papers: Tunable linear-optical phase amplification

Tunable linear-optical phase amplification

URL: http://arxiv.org/abs/2405.03868v1
Date: Mon, 6 May 2024 21:32:16 GMT
Title: Tunable linear-optical phase amplification
Authors: Christopher R. Schwarze, David S. Simon, Abdoulaye Ndao, Alexander V. Sergienko,
Abstract summary: We combine phase-only transformations with fully-transmitting linear-optical scatterers to define the principle of linear-optical phase amplification. A particular phase amplifier is experimentally realized, allowing the phase enhancement parameter $dgamma/dphi$ to be continuously tuned. Placing this enhanced phase shifter in one arm of a Mach-Zehnder interferometer led to an intensity-phase slope more than twenty times steeper than what can be obtained with its unamplified counterpart.
Score: 41.94295877935867
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We combine lossless, phase-only transformations with fully-transmitting linear-optical scatterers to define the principle of linear-optical phase amplification. This enables a physical phase shift $\phi$ to be nonlinearly mapped to a new space $\gamma(\phi)$ using linear optics, resulting in a completely general and enhanced phase shifter that can replace any standard one. A particular phase amplifier is experimentally realized, allowing the phase enhancement parameter $d\gamma/d\phi$ to be continuously tuned. Placing this enhanced phase shifter in one arm of a Mach-Zehnder interferometer led to an intensity-phase slope more than twenty times steeper than what can be obtained with its unamplified counterpart.

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