Results 211 to 220 of about 46,370 (239)
Some of the next articles are maybe not open access.
2015 European Conference on Optical Communication (ECOC), 2015
Wavelength and mode-division multiplexed 4.45 km low-DMGD (0.05ns/km) 6-LP mode fibre transmission employing low-loss all-fibre 10-port photonic lanterns is demonstrated using a 20x20 multiple input multiple-output time-domain equalizer.
J. J. A. van Weerdenburg +12 more
openaire +3 more sources
Wavelength and mode-division multiplexed 4.45 km low-DMGD (0.05ns/km) 6-LP mode fibre transmission employing low-loss all-fibre 10-port photonic lanterns is demonstrated using a 20x20 multiple input multiple-output time-domain equalizer.
J. J. A. van Weerdenburg +12 more
openaire +3 more sources
Asia Communications and Photonics Conference 2015, 2015
We designed a hole-assisted graded-index few mode fiber supporting 4 LP-modes with ultra-low DMGD. Less than 16ps/km across the C-band has been achieved and the sign of DMGD can be tailored by air holes’ structure.
Jiajia Zhao +6 more
openaire +1 more source
We designed a hole-assisted graded-index few mode fiber supporting 4 LP-modes with ultra-low DMGD. Less than 16ps/km across the C-band has been achieved and the sign of DMGD can be tailored by air holes’ structure.
Jiajia Zhao +6 more
openaire +1 more source
Optical Review, 2015
The chromatic dispersion of the LP11 mode in a few-mode fiber with low differential group delay is evaluated experimentally. A differential group delay of less than 100 ps/km around 1550 nm can be evaluated with the modal interferometer method. The white-light interferometric method confirms that the LP11 mode is behind the LP01 mode in the 1300–1600 ...
Nori Shibata +3 more
openaire +1 more source
The chromatic dispersion of the LP11 mode in a few-mode fiber with low differential group delay is evaluated experimentally. A differential group delay of less than 100 ps/km around 1550 nm can be evaluated with the modal interferometer method. The white-light interferometric method confirms that the LP11 mode is behind the LP01 mode in the 1300–1600 ...
Nori Shibata +3 more
openaire +1 more source
Optics Communications, 2019
Abstract The performance of mode-division multiplexing (MDM) system is normally limited to mode dependent loss (MDL) and differential mode group delay (DMGD). Where MDL seriously deteriorates the orthogonality of the transmission matrix, resulting the traditional equalization algorithm failure.
Li Li, Zhang Tian, Hu Guijun
openaire +1 more source
Abstract The performance of mode-division multiplexing (MDM) system is normally limited to mode dependent loss (MDL) and differential mode group delay (DMGD). Where MDL seriously deteriorates the orthogonality of the transmission matrix, resulting the traditional equalization algorithm failure.
Li Li, Zhang Tian, Hu Guijun
openaire +1 more source
Applied Optics, 1999
We present a description and detailed uncertainty analysis of a polarization-mode dispersion (PMD) measurement system that uses the Jones matrix eigenanalysis measurement technique based on a rotating-wave-plate Stokes polarimeter. The uncertainty of the system is 3.2 fs (approximately 95% confidence interval) and is due primarily to PMD in the fiber ...
openaire +2 more sources
We present a description and detailed uncertainty analysis of a polarization-mode dispersion (PMD) measurement system that uses the Jones matrix eigenanalysis measurement technique based on a rotating-wave-plate Stokes polarimeter. The uncertainty of the system is 3.2 fs (approximately 95% confidence interval) and is due primarily to PMD in the fiber ...
openaire +2 more sources
Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013
We investigated the convergence speed of a modified frequency-domain least-mean-square algorithm in few-mode fiber transmission systems. This algorithm improves the convergence speed by about 30% with negligible increase in implementation complexity.
Xuan He +4 more
openaire +2 more sources
We investigated the convergence speed of a modified frequency-domain least-mean-square algorithm in few-mode fiber transmission systems. This algorithm improves the convergence speed by about 30% with negligible increase in implementation complexity.
Xuan He +4 more
openaire +2 more sources
Measurement of differential modal group delay of few-mode fibers using four-wave mixing
Next-Generation Optical Communication: Components, Sub-Systems, and Systems VII, 2018The differential modal group delay (DMGD) of a few-mode fiber (FMF) is an important parameter that decides the complexity of the digital signal processing at the receiver in space division multiplexed (SDM) systems. We use the random mode and polarisation coupling simulation model to explain the origin of statistical spread in DMGD when measured ...
Varun Kelkar +2 more
openaire +1 more source
IEEE Photonics Technology Letters, 2004
We report a feed-forward polarization-mode dispersion (PMD) compensator with four fixed differential group delay elements, which is capable of compensating for any first- and second-order PMD in a transmission fiber. The compensator consists of seven control parameters [or seven degrees of freedom (DOF)].
H. Miao, C. Yang
openaire +1 more source
We report a feed-forward polarization-mode dispersion (PMD) compensator with four fixed differential group delay elements, which is capable of compensating for any first- and second-order PMD in a transmission fiber. The compensator consists of seven control parameters [or seven degrees of freedom (DOF)].
H. Miao, C. Yang
openaire +1 more source
Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV
We numerically model and experimentally demonstrate the Raman-based amplification of optical signals in a mode-division multiplexed multimode optical fiber. We used mode multiplexers and demultiplexers using the multi-plane light conversion technology, and an 8 km span of low-differential mode group delay specialty gradedindex fiber supporting 15 modes.
Zitelli, Mario +5 more
openaire +2 more sources
We numerically model and experimentally demonstrate the Raman-based amplification of optical signals in a mode-division multiplexed multimode optical fiber. We used mode multiplexers and demultiplexers using the multi-plane light conversion technology, and an 8 km span of low-differential mode group delay specialty gradedindex fiber supporting 15 modes.
Zitelli, Mario +5 more
openaire +2 more sources
STATISTICAL ANALYSIS OF DIFFERENTIAL GROUP DELAY IN FEW-MODE SPUN OPTICAL FIBRES
2017A statistical analysis of the differential group delay (DGD) in few-mode spun optical fibres is presented. In particular, it has been considered a sinusoidal spun fibre supporting the first 4 LP groups and perturbed by stress birefringence and core ellipticity.
GUERRA, GIANLUCA +3 more
openaire +1 more source