Results 91 to 100 of about 5,806 (197)

Efficient single-spatial-mode periodically-poled KTiOPO_4 waveguide source for high-dimensional entanglement-based quantum key distribution

, 2012
We demonstrate generation of high-purity photon pairs at 1560 nm in a single spatial mode from a periodically-poled KTiOPO_4 (PPKTP) waveguide. With nearly lossless spectral filtering, the PPKTP waveguide source shows approximately 80 % single-mode fiber
Bienfang, Joshua C., Restelli, Alessandro, Wong, Franco N. C., Zhong, Tian   +3 more
core   +1 more source

Method of reducing time base error in digital magnetic recorders [PDF]

, 1968
Apparatus reduces Time Base Error /TBE/ in the playback of digital data from magnetic recording equipment. The apparatus uses a magnet which employs a servo position control of the tape by which the playback data clock is phase locked with a fixed ...
Moore, J. M.
core   +1 more source

A novel 2nd-order bandpass MFSS filter with miniaturized structure

AIP Advances, 2015
In order to effectively obtain a miniaturized structure and good filtering properties, we propose a novel 2nd-order bandpass metamaterial frequency selective surface (MFSS) filter which contains two capacitive layers and one inductive layer, where there ...
C. Y. Fang, J. S. Gao, X. G. Feng
doaj   +1 more source

Tomography and Purification of the Temporal-Mode Structure of Quantum Light

, 2018
High-dimensional quantum information processing promises capabilities beyond the current state of the art, but addressing individual information-carrying modes presents a significant experimental challenge.
Allgaier, Markus, Ansari, Vahid, Brecht, Benjamin, Donohue, John M., Harder, Georg, Roslund, Jonathan, Sansoni, Linda, Silberhorn, Christine, Treps, Nicolas   +8 more
core   +1 more source

Compact Ultra-Wide Band Bandpass Filter Design Employing Multiple-Mode Resonator and Defected Ground Structure [PDF]

, 2015
For Speech Synthesis, the understanding of the physical and mathematical models of speech is essential. Hence, Speech Modeling is a large field, and is well documented in literature.
Boughazi, Mohamed, Sadek, Affifi, Tabet, Youcef   +2 more
core  

Out-of-Band Multi-Notch Generation in RF Filters Through Parallelization

IEEE Journal of Microwaves
A simple technique for frequency-static multi-notch/transmission-zero (TZ) creation in RF filters with single- and dual-band bandpass transfer functions is presented.
Mohamed Malki, Li Yang, Talal Skaik, Yi Wang, Roberto Gomez-Garcia   +4 more
doaj   +1 more source

Symbol signal-to-noise ratio loss in square-wave subcarrier downconversion [PDF]

This article presents the simulated results of the signal-to-noise ratio (SNR) loss in the process of a square-wave subcarrier down conversion. In a previous article, the SNR degradation was evaluated at the output of the down converter based on the ...
Feria, Y., Statman, J.
core   +1 more source

A compact half‐mode substrate integrated waveguide bandpass filter based on highly confined slow waves with loading capacitive patches

IET Microwaves, Antennas & Propagation
A novel slow‐wave half‐mode substrate integrated waveguide (HMSIW) bandpass filter (BPF) is proposed based on spoof surface plasmon polaritons (SSPPs) with loading capacitive patches (LCPs).
Ning‐Ning Wang, De‐Wei Zhang, Qing Liu, Hang Qian, Wei‐Zhe Qu   +4 more
doaj   +1 more source

Animal Spirits, Lumpy Investment, and the Business Cycle [PDF]

Empirical literature on investment and output dynamics is characterized by two robust stylized facts at the macro level. First, investment is considerably more volatile than output.
Fagiolo G., Roventini A.
core  

Self‐packaged MISL‐based miniaturized high Q factor bandpass filter

Electronics Letters
This paper proposes a technique named self‐packaged metal integrated suspended line (MISL) to design a high Q factor bandpass filter (BPF). This unique construction simplifies the traditional suspended stripline and substrate integrated suspended line ...
Kaixue Ma, Songhua Lin, Yi Wu
doaj   +1 more source