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Shot-Noise Limited Homodyne Detection for MHz Quantum Light Characterisation in the 2 μm Band
Jake Biele, Joel F. Tasker, Joshua W. Silverstone +1
Characterising quantum states of light in the 2 band requires high-performance shot-noise limited detectors. Here, we present the characterisation of a homodyne detector that…
Advantage of Coherent States in Ring Resonators over Any Quantum Probe Single-Pass Absorption Estimation Strategy
Alexandre Belsley, Euan J. Allen, Animesh Datta +1
Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies. By exploiting interference and resonant enhancement effects, we sho…
Un-symmetric photon subtraction: a method for generating high photon number states and their relevance to loss estimation at ultimate quantum limit
N. Samantaray, J. C. F. Matthews, J. G. Rarity
We have studied theoretical un-symmetric multi-photon subtracted twin beam state and demonstrated a method for generating states that resembles to high photon number states with th…
Maximising Precision in Saturation-Limited Absorption Measurements
J. Biele, S. Wollmann, J. W. Silverstone +2
Quantum fluctuations in the intensity of an optical probe is noise which limits measurement precision in absorption spectroscopy. Increased probe power can offer greater precision,…