Results 61 to 70 of about 11,520 (201)

Phononic Crystals: Physical Principles and Novel Structures [PDF]

open access: yesAUT Journal of Mechanical Engineering
Phononic crystals (PnCs) are periodic materials that can control and manipulate the propagation of acoustic (or elastic) waves. The importance of paying attention to this area can be seen in applications such as wireless telecommunications, communication
Amir Rostami   +2 more
doaj   +1 more source

Polarization demultiplexing in Stokes space

open access: yesOptics Express, 2010
A technique is demonstrated for polarization demultiplexing of arbitrary complex-modulated signals. The technique is based entirely on the observation of samples in Stokes space, does not involve demodulation and is modulation format independent. The data in Stokes space is used to find the best fit plane and the normal to it which contains the origin.
Bogdan, Szafraniec   +2 more
openaire   +2 more sources

Demonstration of Distributed Etched Diffraction Grating Demultiplexer

open access: yesIEEE Photonics Journal, 2011
The design principles and measurement results for a compact shallow etched distributed diffraction grating waveguide demultiplexer are presented. The deeply etched diffraction grating facets are replaced with a shallow etched odd-order quarter wavelength
Amir Jafari, Andrew G. Kirk
doaj   +1 more source

Multi-channel demultiplexer/demodulator [PDF]

open access: yes15th International Communicatons Satellite Systems Conference and Exhibit, 1994
One of the critical satellite technologies in a meshed VSAT (very small aperture terminal) satellite communication networks utilizing FDMA (frequency division multiple access) uplinks is a multichannel demultiplexer/demodulator (MCDD). TRW Electronic Systems Group developed a proof-of-concept (POC) MCDD using advanced digital technologies.
P. Cangiane   +3 more
openaire   +1 more source

Patient Monitor for SpO2 and Temperature Parameters [PDF]

open access: yes, 2019
Patient monitor is an apparatus used to monitor the patient\u27s condition in real-time, hence the patient\u27s physiological conditions can be identified at that time.
Hamzah, T. (Torib)   +2 more
core  

Bragg reflection waveguide as a source of wavelength-multiplexed polarization-entangled photon pairs

open access: yes, 2012
We put forward a new highly efficient source of paired photons entangled in polarization with an ultra-large bandwidth. The photons are generated by means of a conveniently designed spontaneous parametric down-conversion process in a semiconductor type ...
Abolghasem   +33 more
core   +1 more source

16x25 GHz OFDM demultiplexer ina 220 nm silicon photonics using a parallel-serial filter approach [PDF]

open access: yes, 2017
C
  +5 more
core   +1 more source

Optimization of an optically implemented on-board FDMA demultiplexer [PDF]

open access: yes
Performance of a 30 GHz frequency division multiple access (FDMA) uplink to a processing satellite is modelled for the case where the onboard demultiplexer is implemented optically.
Fargnoli, J., Riddle, L.
core   +1 more source

An ultrafast 1 x M all-optical WDM packet-switched router based on the PPM header address [PDF]

open access: yes, 2008
This paper presents an all-optical 1 x M WDM router architecture for packet routing at multiple wavelengths simultaneously, with no wavelength conversion modules.
A. Abd   +5 more
core   +1 more source

Dielectric nanoantenna as an efficient and ultracompact demultiplexer for surface waves

open access: yes, 2017
Nanoantennas for highly efficient excitation and manipulation of surface waves at nanoscale are key elements of compact photonic circuits. However, previously implemented designs employ plasmonic nanoantennas with high Ohmic losses, relatively low ...
Basov   +51 more
core   +1 more source

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