Results 101 to 110 of about 5,024,459 (297)

Nanosecond channel-switching exact optical frequency synthesizer using an optical injection phase-locked loop (OIPLL) [PDF]

, 2004
Experimental results are reported on an optical frequency synthesizer for use in dynamic dense wavelength-division-multiplexing networks, based on a tuneable laser in an optical injection phase-locked loop for rapid wavelength locking.
Duser, M, Lovell, T, Seeds, AJ, Renaud, CC, Silva, CFC, Puttnam, B, Bayvel, P   +6 more
core  

On-chip quantum optical frequency comb sources

, 2018
Integrated optical frequency comb sources, based on nonlinear microring resonators, can be used to generate complex quantum states. In particular, we achieved multi-photon and high-dimensional entangled quantum states, as well as their coherent control. ©
Sai T. Chu, Yanbing Zhang, Piotr Roztocki, Caspani, Lucia, Zhang, Yanbing, Roberto Morandotti, Reimer, Christian, Christian Reimer, Wetzel, Benjamin, José Azaña, Stefania Sciara, Cortes, Luis Romero, Moss, David J., Kues, Michael, Brent E. Little, Benjamin Wetzel, Cino, Alfonso, Luis Romero Cortés, David J. Moss, Little, Brent E., Alfonso Cino, Morandotti, Roberto, Chu, Sai T., Michael Kues, Lucia Caspani, Roztocki, Piotr, Sciara, Stefania, Azana, Jose   +27 more
core   +1 more source

Quantum dot mode-locked frequency comb with ultra-stable 25.5 GHz spacing between 20 °C and 120 °C [PDF]

, 2020
Semiconductor mode-locked lasers (MLLs) are promising frequency comb sources for dense wavelength-division-multiplexing (DWDM) data communications. Practical data communication requires a frequency-stable comb source in a temperature-varying environment ...
Penty, Richard, Ponnampalam, Lalitha, Liu, Z, TAKEMASA, K, Zhou, Z, Seeds, Alwyn, Chen, S, Cao, Z, Liu, Zhixin, Lo, Mu-Chieh, Lo, MC, Chen, Siming, Pan, S, Nishi, K, Cao, Zizheng, Tang, Mingchu, Pan, Shujie, Liu, Zizhuo, Nishi, Kenichi, Tang, M, White, Ian, White, I, Penty, R, Takemasa, Keizo, Zhou, Zichuan, Liu, Huiyun, Sugawara, Mitsuru, ,, Seeds, A, Liu, H, Lo, M-C, Huang, Jianou, Sugawara, M, Huang, J, Ponnampalam, L   +34 more
core   +3 more sources

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Advances in Unraveling the Structure and Sodium‐Ion Storage Behaviors of Hard Carbons: From Basic to Extended Characterization Techniques

Carbon Energy, EarlyView.
This review is devoted to introducing the structures and sodium storage mechanisms of hard carbon materials and analyzing the correlated advanced characterization techniques. The advanced characterization techniques are categorized based on the classification of signal sources.
Jiechang Gao, Dongqi Zhang, Guanglei Qiu, Ye Han, Haijun Zhang, Yajie Liu, Zhixin Tai   +6 more
wiley   +1 more source

Optical frequency combs and optical frequency measurements

, 2014
Self-referenced optical frequency combs are nowadays the instrument of choice in time and frequency metrology when dealing with high accuracy and stability measurements of optical frequencies. Beyond this purely measurement activity, they also have new high performance applications, such as low phase noise microwave generation and transfer of spectral ...
Le Coq, Yann, Nicolodi, Daniele, Argence, Bérengère, Haboucha, Adil, Seidelin, Signe, Santarelli, Giorgio, Le Targat, Rodolphe   +6 more
openaire   +3 more sources

Dual-frequency comb in fiber Fabry–Perot resonator

APL Photonics
This paper presents a novel approach to dual-frequency comb generation utilizing a single fiber Fabry–Perot resonator, advancing the implementation of these sources in fiber-based systems. Dual-comb applications such as spectroscopy, ranging, and imaging,
Thomas Bunel, Debanuj Chatterjee, Julien Lumeau, Antonin Moreau, Matteo Conforti, Arnaud Mussot   +5 more
doaj   +1 more source

Modular One‐Pot Access to π‐Expanded Tetrakis(Phenothiazinyl)‐Silanes With Broadly Tunable Redox and Emission Properties

Chemistry – A European Journal, EarlyView.
A library of 21 tetrakis(phenothiazinyl)‐substituted silanes with broadly variable substituent decoration, which are fully reversible multistage redox systems with intense tunable emission from deep blue to yellow–green (441–533 nm), was rapidly synthesized by bromine–lithium exchange/borylation–Suzuki coupling of tetrakis(4‐bromophenyl)silane or by ...
Thomas P. M. Merke, Lysander Presser, Leonard Karl, Christian Ganter, Thomas J. J. Müller   +4 more
wiley   +1 more source

Inherited metabolic epilepsies–established diseases, new approaches

Epilepsia Open, EarlyView.
Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley   +1 more source

All-optical signal processing using cascaded quadratic interactions in periodically poled lithium niobate waveguides

, 2012
This thesis investigates all-optical signal processing using cascaded quadratic nonlinearities in periodically poled lithium niobate (PPLN) waveguides for telecommunication applications.
Liu, Sheng
core   +1 more source