Sub-0.1 degree phase locking of a single-photon interferometer
arXiv:2212.05852 · doi:10.1364/OE.480569
Abstract
We report a single-photon Mach-Zehnder interferometer stabilized to a phase precision of 0.05 degrees over 15 hours. To lock the phase, we employ an auxiliary reference light at a different wavelength than the quantum signal. The developed phase locking operates continuously, with negligible crosstalk, and for an arbitrary phase of the quantum signal. Moreover, its performance is independent of intensity fluctuations of the reference. Since the presented method can be used in a vast majority of quantum interferometric networks it can significantly improve phase-sensitive applications in quantum communication and quantum metrology.
References in corpus (20)
- Advances in Quantum Metrology
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- Experimental delayed-choice entanglement swapping
- Observation of -9 dB quadrature squeezing with improvement of phase stability in homodyne measurement
- Scalable boson sampling with a single-photon device
- Scalable boson-sampling with time-bin encoding using a loop-based architecture
- Stable control of 10 dB two-mode squeezed vacuum states of light
- Universal Quantum Computing with Measurement-Induced Continuous-Variable Gate Sequence in a Loop-Based Architecture
- 7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4
- On-demand photonic entanglement synthesizer
- Postselection-loophole-free Bell violation with genuine time-bin entanglement
- Quantum-enhanced interferometry with large heralded photon-number states
- Stable single-photon interference in a 1 km fiber-optical Mach-Zehnder interferometer with continuous phase adjustment
- A high-speed tunable beam splitter for feed-forward photonic quantum information processing
- Postselection-Loophole-Free Bell Test Over an Installed Optical Fiber Network
- Highly stable polarization independent Mach-Zehnder interferometer
- Increasing efficiency of a linear-optical quantum gate using an electronic feed forward
- Fully tunable and switchable coupler for photonic routing in quantum detection and modulation
- Feedforward-enhanced Fock state conversion with linear optics
- Technique of active phase stabilization for the interferometer with 128 actively selectable paths