A5105924542- Optical Network Technologies
- Advanced Photonic Communication Systems
- Advanced Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Photonic Crystal and Fiber Optics
- Surface Roughness and Optical Measurements
- Laser-Matter Interactions and Applications
- Color Science and Applications
- Quantum Information and Cryptography
- Advanced Fiber Laser Technologies
- Visual perception and processing mechanisms
- Glass properties and applications
- Laser-induced spectroscopy and plasma
- Laser Material Processing Techniques
- Optical Coherence Tomography Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Industrial Vision Systems and Defect Detection
- Photonic Crystals and Applications
- Advanced Optical Imaging Technologies
- Organic Light-Emitting Diodes Research
- Cultural Heritage Materials Analysis
- Building materials and conservation
- Optical Polarization and Ellipsometry
- Image and Video Quality Assessment
Corning (United States)
2011-2022
We use the power coupled-mode theory to study interplay between multipath interference (MPI) and differential mode attenuation (DMA) in quasi-single (QSM) fibers. The analytical expressions derived assuming two propagation QSM fibers show that MPI scales differently as a function of span length for low high DMA. Furthermore, we derive performance improvement long-haul coherent optical communication systems using fibers, taking into account impact excess loss on system performance. From these...
The transmission of a single fundamental mode in fiber with cutoff wavelength above the band is studied as means allowing larger effective area and reducing nonlinearity. reduction nonlinear impairments achieved at expense potential new linear impairment form multipath interference (MPI). We use power-coupled-mode formalism to analyze growth MPI, effects cable attributes on its magnitude required complexity digital signal processing combat MPI. Hybrid spans comprised partially...
In this paper, we review the fundamental advantages and drawbacks of 40-Gb/s systems from a fiber manufacturer's perspective. Based on modeling, experimental results, understanding, correlate design parameters with expected performance long-haul operating at 40 Gb/s. Nonlinear penalties, dispersion tolerances, modulation formats, polarization-mode dispersion, Raman amplification are covered. We also present features required for both metro submarine networks specific data rate.
Frequency-selective polarimeters measure the state of polarization individual spectral components a modulated optical signal. They can be used either as stand-alone measuring devices or parts adaptive polarization-mode dispersion (PMD) compensators. This paper presents novel frequency-selective polarimeter based on coherent detection, which has superior accuracy compared to previously proposed direct detection-based counterparts. is due high-frequency resolution and power sensitivity...
We investigate (a) spontaneous Raman scattering of classical signals in long optical fiber links leading to significant noise quantum channels propagating the same and (b) impact chromatic dispersion on performance high bit rate QKD systems. One way decreasing is decrease signal power. This may be achieved by use coherent modulation formats deployment Forward Error Correction technology. Additionally, low loss with small gain at telecom wavelengths enables simultaneous transmission multiple...
There is considerable interest in finding conditions under which the quantum key distribution (QKD) propagation distances over fiber and secure rate (SKR) are maximized for a given acceptable bit error rate. One way to increase rate, i.e. use shorter pulses. Short pulses propagating subject temporal broadening caused by chromatic dispersion (CD) leads inter-symbol-interference bit-error increase. Current commercial QKD systems employ 1 Gb/s sources, transition 10 system being researched....
The generalization of the Poincaré sphere to N ≥ 2 modes is (N - 1)-dimensional complex projective space CP(N 1). There a minimal set 2N Stokes vector components that determine coherent multimode optical field. These are obtained from inverse stereographic projection coordinate hyperplanes in -1) into -2 sphere, just as = case. We derive N-mode analogs Poole's fiber polarization-mode dispersion (PMD) equations involve only independent variables. This achieved by means an explicit generalized...
A simple explanation of the observed approximately 3 dB advantage differential phase-shift keying (DPSK) balanced detection over intensity-modulated directly detected (IM-DD) type that can be easily used for system engineering purposes is presented. Gaussian approximation to describe tails noisy random signals leading an analytical DPSK IM-DD detection.
Data traffic demands continue to increase worldwide, driving requirements for higher spectral efficiency systems and individual channel capacities. To enable terrestrial transmission keep up with demand, the ITU recently adopted G.654.E standard optical fiber larger effective area use. macrobend loss performance same as conventional G.652 fiber, cable cutoff wavelength specification new class was increased lower edge of C-band. We examine here several aspects in including modeled...
Fused silica, when exposed to excimer laser light, exhibits permanent anisotropic birefringence and wavefront changes. These laser-induced changes depend on the silica composition processing conditions. The optical anisotropy is most clearly observed in samples that are with linear polarization. This polarization-induced effect has been known for several years, but become much more important advent of immersion lithography its associated very high numerical apertures. High aperture optics...
Abstract Touch functionality has been integrated in LCDs of progressively larger sizes. When bonded directly to an LCD surface, thin (< 2.0 mm) ion‐exchanged (IOX'd) glass such as Corning® Gorilla® Glass, offers ideal solution that both protects a panel and enables better ambient viewing quality. However, because the is LCD, we must pay closer attention touch mura. In this work, will classify mura modes associated with action discuss their suppression Corning Gorilla Glass Optical C lear...
We relate local cell gap variations to visible defects in LCD panels using psychophysical methods of human eye perception intensity variations. Our analysis is applicable general shape variation for any mode. use our method an explicit example determine the threshold TN panels.
Perception of visible defects induced by local cell gap variations in liquid crystal display (LCD) panels is studied as a function the viewing direction and applied voltage. Our results are reported terms LCD sensitivity parameter defined our previous publication can be readily used conjunction with psycho-physical models Mura perception. We apply methods to particular example normally white TN show that visibility depends strongly on angle well conclude complete study -parameter voltage...
The group delay of a chromatic dispersion compensation grating module was measured using the phase-shift method and system performance predicted Fourier transform algorithm. Good agreement obtained between simulation eye-diagram. This numerical prediction is accurate only with proper choice wavelength resolution used for measurement.
We theoretically study the performance of coherent optical communication systems using quasi-single-mode fiber in beginning each span, to reduce bulk nonlinearities, followed by single-mode fiber, limit multipath interference penalty within acceptable levels.
ITU G.654.E was recently approved as a new optical fiber standard for terrestrial systems. While G.654-compliant fibers have been used extensively in undersea submarine networks some time, the is optimized systems and, particular, it enables use of large effective area to extend reach high data rate signals with multilevel modulation formats. The increases maximum cable cutoff wavelength specification lower edge C-band, 1530 nm. We analyze potential signal impairments that may arise from...
We study four different measurement methods of multi-path interference (MPI) in quasi-single-mode (QSM) fibers and compare their consistency accuracy. Three agree to within 1.7 dB each case while one overestimates MPI.
Design, test, and performance requirement analysis for a polarization-mode-dispersion compensator (PMDC) with four degrees of freedom is presented. The analyzed on the basis time-integrated time-resolved bit-error ratio (BER) measurements. Signal impairments are generated by both, first- higher-order emulators. probability distributions bit errors measured over many one second intervals exhibit very long tails. Therefore even PMDC good average BER may result in significant total outage time...
Single-mode transmission over few-mode fiber is investigated to enable larger effective area and higher nonlinear tolerance. Multipath interference generated during propagation modeled. Transmission results illustrate benefits of hybrid spans multi-subcarrier modulation formats.
Quantum dot on color filter (QDCF) design is compared with quantum liquid crystal. The challenge for QDCF in light extraction and contrast ratio highlighted.
We proposed and demonstrated a coherent heterodyne receiver architecture that can frequency-resolve the Stokes parameters of modulated signal. also studied feasibility generation an error signal based on variance. presented experimental results for 10 Gb/s NRZ with first-order polarisation mode dispersion (PMD) theoretical 40 RZ higher-order PMD.
The new G.654.E fibre standard moves the cable cut-off specification to 1530 nm. We analyse potential signal impairments that may arise from Raman amplification with pump wavelengths below cut-off. find negligible effects are expected even under worst-case conditions.
Analytic estimates of pulse broadening and system penalty caused by wavelength-division-multiplexing (WDM) filter amplitude variation is derived. We show that root mean square pulsewidth not a reliable measure noise equivalent bandwidth plays key role in determining penalty.