6 papers
Quantum Enhanced Measurement of an Optical Frequency Comb
Y. Cai, J. Roslund, V. Thiel +2
Measuring the spectral properties of an optical frequency comb is among the most fundamental tasks of precision metrology. In contrast to general single-parameter measurement schem…
Single-photon characterization by two-photon spectral interferometry
Valérian Thiel, Alex O. C. Davis, Ke Sun +3
Single-photon sources are a fundamental resource in quantum optics. The indistinguishability and purity of photons emitted from different sources are crucial (necessary, essential)…
Two-color Bell states heralded via entanglement swapping
Sofiane Merkouche, Valérian Thiel, Alex O. C. Davis +1
We report on an experiment demonstrating entanglement swapping of time-frequency entangled photons. We perform a frequency-resolved Bell-state measurement on the idler photons from…
Modal analysis of noise propagation in a femtosecond oscillator
Syamsundar De, Valérian Thiel, Jonathan Roslund +2
We study noise propagation dynamics in a femtosecond oscillator by injecting external noise on the pump intensity. We utilize a spectrally-resolved homodyne detection technique tha…
Quantum-limited measurements of distance fluctuations with a multimode detector
Valérian Thiel, Jonathan Roslund, Pu Jian +2
An experimental scheme is introduced to measure multiple parameters that are encoded in the phase quadrature of a light beam. Using a modal description and a spectrally-resolved ho…
Absolute Measurement of Quantum-Limited Interferometric Displacements
Valérian Thiel, Pu Jian, Claude Fabre +2
A methodology is introduced that enables an absolute, quantum-limited measurement of sub-wavelength interferometric displacements. The technique utilizes a high-frequency optical p…