Results 21 to 30 of about 52,417 (291)
IEEE Photonics Journal, 2015 We propose cascaded mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM-PON) based on low mode-crosstalk few-mode fiber (FMF) and all-fiber mode multiplexer/demultiplexer (MUX/DEMUX), in which optical network units ...
Fang Ren +8 more
doaj +1 more source
Silicon Add-Drop Filter Based on Multimode Grating Assisted Couplers
IEEE Photonics Journal, 2016 We demonstrate the design, fabrication, and characterization of a two-mode silicon add-drop filter, which is based on multimode grating-assisted contra-directional couplers.
Huiye Qiu +7 more
doaj +1 more source
Coupled-mode analysis of fiber-optic add drop filters for dense wavelength-division multiplexing [PDF]
, 1997 We present a coupled-mode theory of fiber-optic add drop filters, which involve directional coupling between two fibers combined with fiber Bragg gratings defined inside the coupling region.
Orlov, Sergei S. +2 more
core +1 more source
Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems
Future Internet, 2018 We present an analysis of clock recovery algorithms in both polarization division multiplexing systems and mode division multiplexing systems. The impact of inter-polarization time skew and polarization mode dispersion in single-mode fibers, as well as ...
Júlio César Medeiros Diniz +2 more
doaj +1 more source
Gain Characteristics of Few-Mode EDFA With Different Pump
IEEE Photonics Journal, 2022 Few-mode erbium-doped fiber amplifier (FM-EDFA) is a key device to achieve power compensation in long-haul mode division multiplexing (MDM) optical system.
Wenxuan Xu +7 more
doaj +1 more source
Fast synchronization 3R burst-mode receivers for passive optical networks [PDF]
, 2014 This paper gives a tutorial overview on high speed burst-mode receiver (BM-RX) requirements, specific for time division multiplexing passive optical networks, and design issues of such BM-RXs as well as their advanced design techniques. It focuses on how
Bauwelinck, Johan +8 more
core +2 more sources
2D least-squares mode decomposition for mode division multiplexing
Optics Express, 2022 We investigate a fast and accurate technique for mode decomposition in multimode optical fibers. Initial decomposition task of near-field beam patterns is reformulated in terms of a system of linear equations, requires neither machine learning nor iterative routines.
Pavel S. Anisimov +2 more
openaire +2 more sources
Frequency-Domain Detection for Frequency-Division Multiplexing QEPAS
Sensors, 2022 To achieve multi-gas measurements of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors under a frequency-division multiplexing mode with a narrow modulation frequency interval, we report a frequency-domain detection method. A CH4 absorption line
Xiang Chen +6 more
doaj +1 more source
Radio-over-modes for C-RAN architecture with smart optical resources assignment [PDF]
, 2017 In this paper we consider a centralized radio access network (C-RAN) architecture with a fully analog fronthaul link between remote radio heads (RRHs) and baseband units (BBUs) based on the radio over fiber (RoF) paradigm. Mode division multiplexing (MDM)
Boffi, Pierpaolo +5 more
core +1 more source
On-chip optical matrix-vector multiplier based on mode division multiplexing
Chip, 2023 A matrix-vector multiplication (MVM) optical signal processor based on mode division multiplexing (MDM) was proposed and demonstrated in the current work, which is composed of a mode multiplexer, a multimode beam splitter, a mode demultiplexer, a ...
Qiaolv Ling +6 more
doaj +1 more source