Results 1 to 10 of about 67 (59)

Electro-optic frequency shift of single photons from a quantum dot [PDF]

Nanophotonics
Quantum dots (QDs) are a promising source of single photons mainly due to their on-demand operation. However, their emission wavelength depends on their size and immediate surroundings in the solid-state environment. By applying a serrodyne electro-optic
Kapoor Sanjay, Rodek Aleksander, Mikołajczyk Michał, Szuniewicz Jerzy, Sośnicki Filip, Kazimierczuk Tomasz, Kossacki Piotr, Karpiński Michał   +7 more
doaj   +3 more sources

Theoretical Design of a Depolarized Interferometric Fiber-Optic Gyroscope (IFOG) on SMF-28 Single-Mode Standard Optical Fiber Based on Closed-Loop Sinusoidal Phase Modulation with Serrodyne Feedback Phase Modulation Using Simulation Tools for Tactical and Industrial Grade Applications [PDF]

Sensors, 2016
This article presents, by means of computational simulation tools, a full analysis and design of an Interferometric Fiber-Optic Gyroscope (IFOG) prototype based on a closed-loop configuration with sinusoidal bias phase- modulation. The complete design of
Ramón José Pérez, Ignacio Álvarez, José María Enguita   +2 more
doaj   +4 more sources

Optical nonreciprocity via transmissive time-modulated metasurfaces. [PDF]

Nanophotonics, 2022
Abstract The frequency mixing property of time‐modulated metasurfaces, attributed to the well‐known phenomenon of temporal photonic transition, has led to several exotic functionalities in the last lustrum. Based on this concept, we demonstrate the possibility of achieving nonreciprocal responses in the near‐infrared regime via combining a time ...
Barati Sedeh H, Mohammadi Dinani H, Mosallaei H.   +2 more
europepmc   +2 more sources

Quantum light: creation, integration, and applications. [PDF]

Nanophotonics
Abstract In today’s rapidly evolving quantum landscape, the generation and manipulation of quantum light not only represent fundamental challenges but also herald unprecedented opportunities in communication, computing, sensing, and imaging. This special issue brings together a collection of contributions that span the entire journey, from the creation
Zhao H, Htoon H, Goldner P, Yu M, Sheldon M, Fernández-Domínguez AI.   +5 more
europepmc   +2 more sources

Serrodyne‐Enabled Dual Electro‐Optic Comb Interferometry for High‐Precision Absolute Ranging and Integration‐Ready Metrology [PDF]

Advanced Science
Optical frequency combs (OFCs) have revolutionized precision metrology, enabling highly precise frequency and distance measurements. Dual electro‐optic frequency comb ranging systems traditionally rely on acousto‐optic modulators (AOMs) to shift the ...
Xiaoyang Guo, Xusheng Yang, Jiawen Zhi, Chenggang Shao, Hanzhong Wu   +4 more
doaj   +2 more sources

Microwave Photonics Broadband Doppler Velocity Simulator with High Spurious Suppression Ratio by Using Serrodyne Modulation

Photonics
A Doppler velocity simulation method based on serrodyne modulation is proposed to achieve the frequency shift from hundred hertz to megahertz. One sub-phase modulation (PM) in a dual-parallel dual-drive Mach–Zehnder modulator loads a sawtooth signal to ...
Zhe Liu, Dayong Wang, Weimin Zhu, Jing Zhang, Yunxin Wang, Jinchuan Yao, Yu Zhang   +6 more
doaj   +3 more sources

Microwave Photonic Frequency Translators With Large Spurious Suppression and Wide Bandwidth

IEEE Photonics Journal, 2021
Two new photonics-based microwave frequency translators are presented. They are based on Serrodyne modulation to frequency translate an optical carrier, which beats with a microwave signal sideband at a photodetector to generate a frequency translated ...
Chongjia Huang, Erwin H. W. Chan
doaj   +1 more source

Integrated heterodyne laser Doppler vibrometer based on stress-optic frequency shift in silicon nitride

PhotoniX, 2023
We demonstrate a compact heterodyne Laser Doppler Vibrometer (LDV) based on the realization of optical frequency shift in the silicon nitride photonic integration platform (TriPleX).
Adam Raptakis, Lefteris Gounaridis, Jörn P. Epping, Thi Lan Anh Tran, Thomas Aukes, Moritz Kleinert, Madeleine Weigel, Marco Wolfer, Alexander Draebenstedt, Christos Tsokos, Panos Groumas, Efstathios Andrianopoulos, Nikos Lyras, Dimitrios Nikolaidis, Elias Mylonas, Nikolaos Baxevanakis, Roberto Pessina, Erik Schreuder, Matthijn Dekkers, Volker Seyfried, Norbert Keil, René G. Heideman, Hercules Avramopoulos, Christos Kouloumentas   +23 more
doaj   +1 more source

Photonic-Assisted Microwave Frequency and Phase Shifter for Deception Jamming

IEEE Photonics Journal, 2021
A new microwave photonic signal processing structure that has the ability to realise frequency and phase shifting operation is presented. The proposed structure uses Serrodyne phase modulation in a dual-polarisation binary phase shift keying (DP-BPSK ...
Chongjia Huang, Erwin H. W. Chan
doaj   +1 more source

All-Optical Pulsed Signal Doppler Frequency Shift Measurement System

IEEE Photonics Journal, 2021
A simple and all-optical Doppler frequency shift (DFS) measurement system is presented. It is based on a dual-drive Mach Zehnder modulator (DDMZM) driven by a transmitted signal and an echo signal received by an antenna.
Chongjia Huang, Erwin H. W. Chan
doaj   +1 more source