<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> The use of an ultra-wideband (UWB) radio technique is proposed as a viable solution for the distribution high-definition audio/video content in fiber-to-the-home (FTTH) networks. approach suitability demonstrated by transmission standards-based UWB signals at 1.25 Gb/s along different FTTH fiber links with 25 km up to 60 standard single-mode length laboratory experiment. Experimental results...

This paper proposes and investigates the use of multicore fiber (MCF) media performing space-division multiplexed transmission for next-generation optical fronthaul systems.We report experimental demonstration combined radio-over-fiber (RoF) full-standard LTE-Advanced (LTE-A) WiMAX signals providing connectivity in 150 m 4-core (4CF), transmitting simultaneously fully independent wireless services.Operating linear nonlinear power regimes, evaluation verifies that error vector magnitude (EVM)...

In this letter, we present a scalable high-speed W-band (75–110-GHz) fiber wireless communication system. By using an optical frequency comb generator, three-channel 8.3-Gb/s/ch orthogonal frequency-division-multiplexing (OOFDM) baseband signals in 15-GHz bandwidth are seamlessly translated from the to domain. The carrier is generated heterodyne mixing OOFDM signal with free-running laser. A electronic down-converter and digital processing-based receiver used. Three-channel QPSK-OFDM...

We propose and analyze a novel (to our knowledge) approach to implement the spectral self-imaging effect of optical frequency combs. The technique is based on time-domain multilevel phase-only modulation periodic pulse train. method admits both infinite- finite-duration sequences. show that fractional allows one reduce by an integer factor comb spacing. Numerical simulation results support theoretical analysis.

In this paper we evaluate experimentally and model theoretically the nonlinear crosstalk random process in multi-core fiber. The experimental results indicate that mode coupling fibers is reduced presence of fiber Kerr nonlinearities. An analytical study inter-core probability density function regime performed, where theoretical distribution, derived from coupled-mode equation, validated homogeneous four-core herein presented analysis includes evaluation function, mean variance evolution...

This paper proposes and evaluates analytically experimentally the suitability of spatial multiplexing in multicore fiber (MCF) for multiple-input multiple-output (MIMO) LTE-Advanced (LTE-A) optical fronthaul systems including carrier aggregation. The experimental test-bed comprises a 150-m four-core homogeneous MCF, which can be configured with different bending radius analysis. Performance linear crosstalk MCF media is evaluated by simulation validated work laboratory radio-over-fiber...

We propose and demonstrate a 25-Gb/s 16-quadrature amplitude modulation orthogonal frequency division multiplexing 60-GHz radio over fiber transmission system based on gain-switched optical comb source. The impact of the phase noise caused by decorrelation due to chromatic dispersion is theoretically studied experimentally investigated employing high linewidth source transmitting 50-km standard single-mode reel. A time delay precompensation deployed study in order reduce impact, thereby...

A 25-Gb/s OFDM 60-GHz radio over fiber (RoF) transmission system employing a gain switched DFB laser for millimeter-wave generation is demonstrated. Transmission performance below the 7% FEC limit achieved 50 km of initially by precompensation. This precompensation overcomes phase noise caused optical decorrelation induced chromatic dispersion on two channels separated 60 GHz. An externally injected subsequently employed to eradicate need precompensation, thus reducing and increasing...

In this paper, the theoretical unification of linear and nonlinear inter-core crosstalk (IC-XT) in step-index single-mode multicore fiber (MCF) media is reported validated experimentally. order to estimate IC-XT when operating regimes, coupled-mode theory (CMT) coupled-power (CPT) have been unified both power regimes. The analysis CMT indicates that coupled MCFs with reduced core-to-core distance (core pitch) self-coupling cross-coupling effects should be considered high optical powers....

A photonic beamformer system designed for next-generation 5G new radio (5G NR) operating in the millimeter waveband is proposed and demonstrated experimentally, including its performance characterization. The beamforming device based on optical ring resonators (ORRs) implemented Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> assisted with multicore fiber (MCF) to feed different...

Abstract Supersymmetry is a conjectured symmetry between bosons and fermions aiming at solving fundamental questions in string quantum field theory. Its subsequent application to mechanics led ground-breaking analysis design machinery, later fruitfully extrapolated photonics. In all cases, the algebraic transformations of quantum-mechanical supersymmetry were conceived space realm. Here, we demonstrate that Maxwell’s equations, as well acoustic elastic wave also possess an underlying time...

This paper describes the state-of-the-art of polarization multiplexing for optical networks transmission. The use division (PDM) permits to multiply user capacity and increase spectral efficiency. Combining PDM orthogonal frequency multiplexed (OFDM) modulation allows maximizing transmission capacity. experimental demonstration transmitting OFDM signals following ECMA-368 ultrawide band (UWB) standard in radio-over-fiber using passive is herein reported. impact cross-polarization cochannel...

A radio over fiber (RoF) transmission system based on a gain-switched laser as an optical comb source is proposed and demonstrated. 12.5 Gb/s 16 quadrature amplitude modulation (16 QAM) signal generation 25 km standard single-mode experimentally demonstrated using 60 GHz carrier. The phase noise of the resulting from beating two partially uncorrelated tones theoretically studied investigated. Phase comparison with different linewidth sources implemented in RoF system, performance various...

This paper proposes and demonstrates experimentally the application of optical polarization-multiplexed radio-over-fiber wireless backhauling fully standard 3GPP carrier-aggregated multiple-input multiple-output (MIMO) signals. The experimental work successful long-reach transmission LTE-Advanced (LTE-A) signals using 2×2 MIMO spatial diversity. suitability provision links is demonstrated over different E-UTRA frequency division duplex bands. performance electrical carrier aggregation...

Originally introduced in the context of string theory and quantum field theory, ideas supersymmetry have lately been extended to photonics, as a tool design unique optical structures with degenerate spectra. Here authors study several aspects applications one-dimensional supersymmetric transformations fibers. As an example, they discuss possibility building broadband all-fiber true mode (de)multiplexer, requiring no conversion between waveguides, which addresses outstanding real-world problem field.

This study describes a wide range of salient radio-over-fibre system issues. Impulse radio and multi-band ultra-wideband signal distribution over both single-mode fibre multi-mode (MMF) implementations are considered. Carrier frequencies ranging from 3.1 to 10.6 GHz, up 60 featured, the use microring laser transmitters is discussed. A cost–performance comparative analysis competing distributed antenna topologies presented, theoretical approach understanding factors underlying radio-over-MMF...

The performance of radio-over-fiber optical transmission employing vertical-cavity surface-emitting lasers (VCSELs), and further wireless transmission, the two major ultra-wideband (UWB) implementations is reported when operating in 60-GHz radio band. Performance evaluated at 1.44 Gbit/s bitrate. UWB considered employ dual-carrier modulation orthogonal frequency-division multiplexing (DCM-OFDM) binary phase-shift keying impulse (BPSK-IR) respectively. Optical distances up to 40 km standard...

We propose and experimentally demonstrate a fiber-wireless transmission system for optimized delivery of 60-GHz radio frequency (RF) signals through picocell mobile backhaul connections. identify advantages links utilization in short-range feasibility analysis comparison with an alternative E-band (60–90 GHz) technology. The fiber-wireless-fiber setup is then introduced: two spans up to 20 km optical fiber are deployed bridged by 4 m wireless distance. radio-over-fiber technology utilized...

In this paper, we evaluate experimentally and model theoretically the intra- inter-core crosstalk between polarized core modes in single-mode multi-core fiber media including temporal longitudinal birefringent effects. Specifically, extensive experimental results on a four-core indicate that fluctuation of birefringence modifies behavior both linear nonlinear optical power regimes. To gain theoretical insight into results, introduce an accurate based local perturbation theory, which is...

In this paper, we report on a gigabit capacity fiber-wireless system that enables smooth integration between high-speed wireless networks and dense wavelength-division-multiplexing (DWDM) access networks. By employing centralized optical frequency comb, both the wireline services for each DWDM user can be simultaneously supported. Besides, baseband channel transparently upconverted to multiple radio-frequency (RF) bands different standards, which flexibly filtered at end select on-demand RF...

In this paper, we evaluate by means of simulation and experimentally the simultaneous coupling LP01x-LP11ax fiber modes TE0-TE1 nanophotonic SOI waveguide using a grating coupler for two-mode at 1550 nm. Both width (ranging from 10 µm to 15 µm) vertical profile have been considered in design procedure. The optimum (14 609 nm period) has selected terms efficiency (both LP01x-TE0 LP11ax-TE1), compactness tolerance lateral misalignments between coupler. LP11ax-TE1 achieved efficiencies 49% 45%,...

Optical wireless fronthaul of dual Mx2x2 MIMO LTE-A systems by radio-over-fiber spatial multiplexing is demonstrated over 125m 4-core fiber using 16QAM and 64QAM subcarrier mapping. 3GPP LTE algorithms in-place successfully mitigate core-to-core impairments.