Comparison of AWGs and Echelle Gratings for Wavelength Division Multiplexing on Silicon-on-Insulator
IEEE Photonics Journal, 2014 We compare the performance (insertion loss and crosstalk) of silicon-based arrayed waveguide gratings (AWGs) and echelle gratings for different channel spacings.
S. Pathak +3 more
doaj +1 more source
Sup-Inf inequality on manifold of dimension 3 [PDF]
, 2006 We prove an a priori estimate of type sup*inf on Riemannian manifold of dimension 3 (not necessarily compact).Comment: 9 ...
Bahoura, Samy Skander
core +2 more sources
Some estimates of Wang-Yau quasilocal energy
, 2009 Given a spacelike 2-surface $\Sigma$ in a spacetime $N$ and a constant future timelike unit vector $T_0 $ in $\R^{3,1}$, we derive upper and lower estimates of Wang-Yau quasilocal energy $E(\Sigma, X, T_0)$ for a given isometric embedding $X$ of $\Sigma$
Brown J D York J M +6 more
core +1 more source
Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light
IEEE Photonics Journal, 2016 In order to optimize the coherent Brillouin optical time domain analysis (BOTDA) sensor for more effective chromatic dispersion (CD) suppression, single-sideband intensity-modulated probe (IMP) light is utilized.
Zonglei Li +6 more
doaj +1 more source
Si 3N 4-Based Integrated Optical Analog Signal Processor and Its Application in RF Photonic Frontend
IEEE Photonics Journal, 2015 Digital signal processing has achieved great success in the field of signal processing over the past several decades. However, as the bandwidth requirement increases, the power consumption and effective number of bits (ENOB) of the analog-to-digital ...
Hongchen Yu +9 more
doaj +1 more source
PVDF fluorination of La4Co3O10: Synthesis, structure and physical properties of La4Co3O10F2
Scripta MaterialiaTopochemical fluorination of oxides recently gained interest as it opens the way to substantial structural modifications and drastic changes in physical properties. We present a study of La4Co3O10F2, synthesized via low-temperature topochemical methods using polyvinylidene difluoride (PVDF).
Bruno Gonano +5 more
openaire +3 more sources
Quaternion Approach to the Measurement of the Local Birefringence Distribution in Optical Fibers
IEEE Photonics Journal, 2015 A method to structure the Jones quaternion utilizing Pauli matrices is proposed, improving the quaternion theory of polarization optics. It is proved that the Stokes quaternion is the double product of the Jones quaternion and its Hermitian transpose and
Lanlan Liu +4 more
doaj +1 more source
sup+inf for Riemannian surfaces and sup*inf for for bounded domains of R^n, n>2
, 2006 This paper is in relation with a Note of "Comptes Rendus de l'Academie des Sciences" 2005. We have an idea about a lower bounds of sup+inf (2 dimensions) and sup*inf (dimensions >2).Comment: 15 ...
Bahoura, Samy Skander
core
Digitally Controlled Micro-LED Array for Linear Visible Light Communication Systems
IEEE Photonics Journal, 2015 In a visible light communications (VLC) system, the frequency response of the light-emitting diode (LED) limits the signal bandwidth and, thus, becomes the bottleneck of the transmission data rate.
H. Qian, S. Zhao, S. Z. Cai, T. Zhou
doaj +1 more source
Adaptive Postdistortion for Nonlinear LEDs in Visible Light Communications
IEEE Photonics Journal, 2014 In a visible light communication (VLC) system, the light-emitting diode (LED) is the major source of nonlinearity. The nonlinear effects in the VLC system are different from the conventional wireless communications system.
H. Qian, S. J. Yao, S. Z. Cai, T. Zhou
doaj +1 more source