Quantum Optics

Cavity-Assisted Homodyne Detection with a Single Photodiode

A cavity-assisted approach to high-bandwidth homodyne detection that uses a single photodiode, suppresses technical local-oscillator sidebands, and retains high signal-transfer …

Jonas Junker
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Phase-Sensitive Crystal-Edge Effects in Linear Optical Parametric Oscillators: Why Nominally Identical Squeezers Behave Differently

Experimental and theoretical analysis of phase-sensitive crystal-edge effects that explain large threshold differences between nominally identical optical parametric oscillators.

Jonas Junker
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Realization of an All-Optical Effective Negative-Mass Oscillator for Coherent Quantum Noise Cancellation

Experimental realization of a compact all-optical effective negative-mass oscillator for broadband coherent quantum noise cancellation, with a projected 3.6 dB reduction in quantum …

Nived Johny
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Squeezing at the Normal-Mode Splitting Frequency of a Nonlinear Coupled Cavity

Experimental demonstration of squeezing at the normal-mode splitting frequency in a nonlinear coupled optical cavity, showing quantum noise reduction around 7.47 MHz and validating …

Jonas Junker
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Quantum Enhanced Balanced Heterodyne Readout for Differential Interferometry

Experimental demonstration of quantum-enhanced balanced heterodyne readout for differential interferometry using spectrally entangled squeezed states, showing a ~3.5 dB improvement …

Daniel W. Gould
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Broadband Detection of 18 Teeth in an 11-dB Squeezing Comb

Experimental demonstration of broadband detection of an 18-mode squeezing comb with up to 11 dB noise reduction, enabling parallel quantum-enhanced sensing.

Dennis Wilken
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Frequency-Dependent Squeezing from a Detuned Squeezer

Demonstration of frequency-dependent squeezed light from a detuned optical parametric oscillator, measured via quantum tomography — an approach relevant to quantum-enhanced …

Jonas Junker
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Reconstructing Gaussian Bipartite States with a Single Polarization-Sensitive Homodyne Detector

Reconstruction of Gaussian bipartite quantum states using a single polarization-sensitive homodyne detector.

Jonas Junker
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