1.2k citations · 1.8k across the 11 of their papers we have counts for
11 papers
Supercontinuum generation from Topological Edge Supermodes in a short SSH Photonic Crystal Fiber
Daniel Rodriguez-Guillen, Carlos Wiechers, Lorena Velazquez-Ibarra
We introduce a topological photonic-crystal fiber that embeds a short Su-Schrieffer-Heeger (SSH) chain and supports two edge supermodes. Using full-vector modal analysis and a coup…
Dead-time optimization to increase secure distance range in prepare and measure quantum key distribution protocols
Carlos Wiechers, J. L. Lucio, Xóchitl Sánchez-Lozano +2
Afterpulsing is a factor limiting the distance over which discrete-variable quantum key distribution systems are secure, and a common feature in single-photon detectors. The releva…
Z-scan applied to phosphate glasses doped with Er-Yb and silver nanoparticles
C. Wiechers, M. A. Martinez-Gamez, M. A. Vallejo-Hernandez +4
We report on the use of Z-scan technique with a beam composed with two modes, to probe the nonlinear optical properties of phosphate glasses doped with Er-Yr and silv…
800 nm pumped SPDC from chirped crystals
X. Sánchez-Lozano, C. Wiechers, J. L. Lucio
We consider crystal chirp effects on SPDC when pumping at 800 nm. The typical distribution produced in frequency-momentum space is a pop tab-like structure which turns out to be su…
Systematic afterpulsing-estimation algorithms for gated avalanche photodiodes
Carlos Wiechers, Roberto Ramírez-Alarcón, Oscar R. Muñiz-Sánchez +4
We present a method designed to efficiently extract optical signals from InGaAs avalanche photodiodes (APDs) operated in gated mode. In particular, our method permits an estimation…
Device calibration impacts security of quantum key distribution
Nitin Jain, Christoffer Wittmann, Lars Lydersen +5
Characterizing the physical channel and calibrating the cryptosystem hardware are prerequisites for establishing a quantum channel for quantum key distribution (QKD). Moreover, an…