Search Results - ignacio+rojas

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Two-Pumps-Based Degenerate Entanglement Assisted Communication with SLM-Based Beam Pointing
This technology is an entanglement assisted (EA) communications system that employs two pump lasers in order to more easily satisfy quasi-phase matching conditions. Rather than performing optical phase-conjugation (OPC) on signal photons, this technology transmits unmodulated idler photons alongside modulated signal photons without the use of OPC. This...
Published: 9/22/2025   |   Inventor(s): Ivan Djordjevic, Ignacio Rojas
Keywords(s):  
Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Engineering & Physical Sciences > Quantum
Covert Free-Space Optical Communications with SLM-Based Beam Steering
This is a system for secure low probability of detection communications across a free-space optical (FSO) channel. The system utilizes an LED-based source which transmits signals with distributions that match the distribution of the background solar radiation, which hides the signals. The transmitted signals are modulated according to a phase-shift...
Published: 9/22/2025   |   Inventor(s): Ivan Djordjevic, Ignacio Rojas
Keywords(s):  
Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Materials & Fabrication