Results 181 to 190 of about 361 (216)

Differential Group Delay Measurement in Spun Birefringent Uncoupled Multicore Fibers

2025 European Conference on Optical Communications (ECOC)
Experimental measurements of the local birefringence of spun multi-core fibers are presented and related to differential group delay measurements. Results, supported also by numerical simulations, show how spin can effectively reduce the differential group delay also in multi-core fibers, if properly designed.
Romero Ponce, L. V., Aitkulov, A., Stegmaier, M., Geisler, T., Santagiustina, M., Galtarossa, A., Palmieri, L.   +6 more
openaire   +2 more sources

Comparison of optical PMD compensation using a variable and fixed differential group delays

Optical Fiber Communication Conference and International Conference on Quantum Information, 2001
Polarization mode dispersion compensation with dynamic tracking is investigated by modeling. An optical compensator using a variable differential group delay can alleviate the local minimum problem and provide superior performance compared to a fixed-delay compensator.
Q. Yu, A.E. Willner
openaire   +1 more source

Study of the frequency autocorrelation of the differential group delay in fibers with polarization mode dispersion

Optics Letters, 2000
We study the frequency autocorrelation of the differential group delay (DGD) in fibers with polarization mode dispersion (PMD). We show that the correlation bandwidth of the DGD is comparable with that of the orientation of the PMD vector. Furthermore, we show that all the most general statistical properties of polarization mode dispersion in long ...
SHTAIF M., MECOZZI, ANTONIO
openaire   +3 more sources

On differential group-delay statistics for polarization-mode dispersion emulators

Journal of Lightwave Technology, 2001
We present a theoretical study on differential group-delay (DGD) statistics for common models of polarization-mode dispersion (PMD) emulators. Our study will show, for the first time to our knowledge, that the statistics for the length of the PMD vector will not necessarily behave as a system with three degrees of freedom when the number of sections in
openaire   +1 more source

Calculation of the mean differential group delay of periodically spun, randomly birefringent fibers

Optics Letters, 2002
Spinning is one of the most effective and well-known ways to reduce polarization mode dispersion of optical fibers. In spite of the popularity of spinning, a detailed theory of spin effects is still lacking. We report an analytical expression for the mean differential group delay of a randomly birefringent spun fiber.
GALTAROSSA, ANDREA, GRIGGIO, PAOLA, PIZZINAT, ANNA, PALMIERI, LUCA   +3 more
openaire   +3 more sources

Effect of GPS System Biases on Differential Group Delay Measurements

1988
Abstract : GPS satellite and receiver differential L1/L2 biases induce errors into the GPS derived ionospheric measurements of the total electron content. If these measurements are to be used for ionospheric calibration of other systems or for deriving ionospheric measurements for these and other similar applications.
Clayton Coker, Scott R. Dahike, David S. Coco   +2 more
openaire   +1 more source

Balanced Microstrip Circuit with Differential Negative Group Delay Characteristics

2021 Cross Strait Radio Science and Wireless Technology Conference (CSRSWTC), 2021
Zihui Zhu, Zhongbao Wang, Yuwei Meng, Shaojun Fang, Hongmei Liu   +4 more
openaire   +1 more source

The Spectrum of Delay Differential Equations with Large Delay

SIAM Journal on Mathematical Analysis, 2011
Serhiy Yanchuk
exaly  

Numerical solution of a class of delay differential and delay partial differential equations via Haar wavelet

Applied Mathematical Modelling, 2016
Rohul Amin, Imran Aziz
exaly  

On the oscillation of higher-order half-linear delay differential equations

Applied Mathematics Letters, 2011
Tongxing Li, E Thandapani
exaly