260 citations · 517 across the 16 of their papers we have counts for
16 papers
Complementarity Analysis of Interference between Frequency-Displaced Photonic Wave-Packets
Gustavo C. Amaral, Elisa F. Carneiro, Guilherme P. Temporão +1
The complementarity relation between the visibility and the spectral distinguishability of frequency-displaced photonic wave-packets in a Hong-Ou-Mandel interferometer is studied.…
A Low-Frequency Tone Sweep Method for in-Service Fault Location in Sub-Carrier Multiplexed Optical Fiber Networks
Gustavo C. Amaral, Diego C. Villafani, Andrea Baldivieso +5
We demonstrate an optical fiber fault location method based on the frequency response of the modulated fiber optical backscattered signal in a steady state low-frequency step regim…
Quantum random number generation enhanced by weak-coherent states interference
T. Ferreira da Silva, G. B. Xavier, G. C. Amaral +2
We propose and demonstrate a technique for quantum random number generation based on the random population of the output spatial modes of a beam splitter when both inputs are simul…
Adaptive Filter for Automatic Identification of Multiple Faults in a Noisy OTDR Profile
Jean Pierre von der Weid, Mario H. Souto, Joaquim D. Garcia +1
We present a novel methodology able to distinguish meaningful level shifts from typical signal fluctuations. A two-stage regularization filtering can accurately identify the locati…
Sub-Poisson States Heralded at a Hong-Ou-Mandel Interference Peak
G. C. Amaral, F. Calliari, T. Ferreira da Silva +2
A peak in coincidence events has been observed in a modified Hong-Ou-Mandel interferometer fed with weak coherent states inside the region of overlapping wave-packets. The inversio…
Few-Photon Heteorodyne Spectroscopy
Gustavo C Amaral, Thiago Ferreira da Silva, Guilherme P Temporão +1
We perform a high resolution Fourier Transform Spectroscopy of optical sources in the few-photon regime based on the phenomenon of two-photon interference in a beam splitter. From…