79 citations · 207 across the 10 of their papers we have counts for
10 papers
Direct measurement of coherent light proportion from a practical laser source
Xi Jie Yeo, Eva Ernst, Alvin Leow +4
We present a technique to estimate the proportion of coherent emission in the light emitted by a practical laser source without spectral filtering. The technique is based on measur…
Practical Quantum Sensing with Thermal Light
Peng Kian Tan, Xi Jie Yeo, Alvin Zhen Wei Leow +2
Many quantum sensing suggestions rely on temporal correlations found in photon pairs generated by parametric down-conversion. In this work, we show that the temporal correlations i…
Countering detector manipulation attacks in quantum communication through detector self-testing
Lijiong Shen, Christian Kurtsiefer
In practical quantum key distribution systems, imperfect physical devices open security loopholes that challenge the core promise of this technology. Apart from various side channe…
Distributing Polarization Entangled Photon Pairs with High Rate over Long Distance through Standard Telecommunication Fiber
Lijiong Shen, Chang Hoong Chow, Justin Yu Xiang Peh +3
Entanglement distribution over long distances is essential for many quantum communication schemes like quantum teleportation, some variants of quantum key distribution, or implemen…
Absolute clock synchronization with a single time-correlated photon pair source over 10km
Jianwei Lee, Lijiong Shen, Adrian Nugraha Utama +1
We demonstrate a point-to-point clock synchronization protocol based on bidirectionally propagating photons generated in a single spontaneous parametric down-conversion (SPDC) sour…
A wide-range wavelength-tunable photon-pair source for characterizing single-photon detectors
Lijiong Shen, Jianwei Lee, Antony Winata Hartanto +2
The temporal response of single-photon detectors is usually obtained by measuring their impulse response to short-pulsed laser sources. In this work, we present an alternative appr…
Asymmetric delay attack on an entanglement-based bidirectional clock synchronization protocol
Jianwei Lee, Lijiong Shen, Alessandro Cerè +3
We demonstrate an attack on a clock synchronization protocol that attempts to detect tampering of the synchronization channel using polarization-entangled photon pairs. The protoco…
Symmetrical clock synchronization with time-correlated photon pairs
Jianwei Lee, Lijiong Shen, Alessandro Cerè +3
We demonstrate a point-to-point clock synchronization protocol based on bidirectionally exchanging photons produced in spontaneous parametric down conversion (SPDC). The technique…
Multi-pulse fitting of Transition Edge Sensor signals from a near-infrared continuous-wave source
Jianwei Lee, Lijiong Shen, Alessandro Cerè +4
Transition-edge sensors (TES) are photon-number resolving calorimetric spectrometers with near unit efficiency. Their recovery time, which is on the order of microseconds, limits t…
Randomness extraction from Bell violation with continuous parametric down conversion
Lijiong Shen, Jianwei Lee, Le Phuc Thinh +8
We present a violation of the CHSH inequality without the fair sampling assumption with a continuously pumped photon pair source combined with two high efficiency superconducting d…