Recent advances in short reach 100 Gb/s intensity modulation and directed detection systems are briefly reviewed. As an illustrative example of using digital signal processing enabled transmitters receivers to allow relatively modest symbol rates, the generation 112 16-QAM half-cycle Nyquist subcarrier considered dual-polarization, single-carrier single-polarization, dual-carrier implementations. High bandwidth directly modulated passive feedback lasers used generate optical signals...

The increasing integration of the Internet Things (IoT) into daily life has led to significant changes in our social interactions. advent innovative IoT solutions, combined with enhanced capabilities and expanded reach 5G wireless networks, is altering way humans interact machines. Notably, advancement edge computing, underpinned by networks within frameworks, markedly extended human sensory perception interaction. A key biometric these applications electroencephalography (EEG), recognized...

Perturbation based nonlinearity pre-compensation has been performed for a 128 Gbit/s single-carrier dual-polarization 16-ary quadrature-amplitude-modulation (DP 16-QAM) signal. Without any performance degradation, complexity reduction factor of 6.8 demonstrated transmission distance 3600 km by combining symmetric electronic dispersion compensation and root-raised-cosine pulse shaping with roll-off 0.1. Transmission over 4200 standard single-mode fiber EDFA amplification was achieved the DP...

Two novel linewidth-tolerant, low-complexity feedforward carrier phase estimation algorithms are described for dual-polarization 16-ary quadrature-amplitude-modulation with coherent detection. For both algorithms, the is estimated in two stages. The first stage employs either a simplified quadrature-phase-shift-keying (QPSK) partitioning algorithm or blind search (BPS) algorithm. second QPSK constellation transformation performance and linewidth tolerance of evaluated using experimental...

This paper addresses the limitations of relying solely on facial expressions for emotion recognition by proposing an advanced approach that emphasizes continuous monitoring electroencephalography (EEG) signals. Recognizing potential deception in expressions, our study leverages growing interest EEG signals, tapping into advancements deep learning and machine learning. By optimizing configuration electrodes, enhances accuracy classification systems, offering a streamlined solution. The...

To combat chromatic dispersion (CD) in intensity modulation and direct detection (IM/DD) systems, three chirp-free demonstrations are experimentally performed with an iterative pre-electronic compensation (pre-EDC) algorithm at the transmitter end, for 28 GBaud non-return-to-zero on-off keying (NRZ-OOK), 56 NRZ-OOK four-level pulse-amplitude-modulation (PAM-4) signals, over distances of 100 km, 50 km 40 single mode fiber (SMF), respectively. The pre-EDC is based on Gerchberg-Saxton (GS)...

A 16-QAM signal is generated using subcarrier modulation with a frequency of half the symbol rate, Nyquist pulse shaping, and directly modulated passive feedback laser at bit rates 14, 28, 56 Gb/s. Using polarization multiplexing emulation, pre-amplified direct detection receiver digital processing, loss margins 12.6 8 dB are achieved for 112 Gb/s dual back-to-back after 4 km transmission, respectively.

A novel iterative algorithm for electronic dispersion compensation (EDC) at the transmitter is described and demonstrated intensity modulation direct detection (IM/DD) systems. The proposed based on GerchbergSaxton (GS) algorithm, where link performs timeto-frequency mapping, while unconstrained phase receiver acts as a degree of freedom. Simulation results employing single drive Mach-Zehnder modulator (MZM) operating 28 Gb/s non-return-to-zero on-off keying (NRZ-OOK), show pre-compensation...

In this paper, a customizable wearable 3D-printed bionic arm is designed, fabricated, and optimized for right amputee. An experimental test has been conducted the user, where control of artificial hand accomplished successfully using surface electromyography (sEMG) signals acquired by multi-channel armband. The was designed low cost 295 USD, lightweight at 428 g. To facilitate generic arm, sEMG data were collected set gestures (fist, spread fingers, wave-in, wave-out) from wide range...

Short-reach transmission systems traditionally utilize intensity modulation (IM) at the transmitter and direct detection (DD) receiver due to their cost-effectiveness, small footprint, low power consumption. However, with exponential increase in bandwidth demand, coherent optical communication have become necessary for long-haul distances, requiring application-specific integrated circuits (ASIC) advanced digital signal processing (DSP) algorithms coupled high-speed digital-to-analog...

Lumbar degenerative disc diseases (DDDs) are the common causes of low back pain, leading to non-conservative treatments like fusion and non-fusion surgery as a last resort. Fusion is gold standard for addressing DDDs, where implants such cages, pedicle screws rods used posterior stabilization. Various finite element (FE) studies have reported using corrugated cage surface textures; some others flat textures virtual implantation. No comparative been on biomechanical effects under implantation...

We have fabricated monolithic silicon avalanche photodiodes capable of 10 Gbps operation at a wavelength 1550 nm. The are entirely CMOS process compatible and comprise p-i-n junction integrated with silicon-on-insulator (SOI) rib waveguide. Photo-generation is initiated via the presence deep levels in bandgap, introduced by ion implantation modified subsequent annealing. devices show small signal 3 dB bandwidth 2.0 GHz as well an open eye pattern Gbps. A responsivity 4.7 ± 0.5 A/W measured...

A 56-Gb/s 16-QAM signal was generated using subcarrier modulation with a frequency of half the symbol rate, Nyquist pulse shaping, and directly modulated passive feedback laser. Using pre-amplified direct detection receiver digital processing, loss margin 12.6 dB achieved for 112-Gb/s dual polarization signal.

Intensity-modulation and direct-detection (IM/DD) transmission over short-reach optical fiber links, require electronic dispersion compensation (EDC) at the transmitter and/or equalization receiver. Recently, iterative Gerchberg-Saxton (GS) algorithm was demonstrated for EDC in IM/DD systems, through treating amplitude phase prior-to direct detection receiver as a degree of freedom. In Part I this work, three GS approaches using finite impulse response (FIR) filters systems are demonstrated....

The rise in popularity of humanoid robots will eventually lead to including them all our daily lives. Since these are opted have the ability move, act, and communicate like humans, they be used replace humans certain minimalist tasks or hazardous situation. In this paper, we propose a review recent project discussing utilization as service robots. Moreover, scenario framework proposed where robot (Pepper) performing at AUM reception.

The design, micro-fabrication, and characterization of a resistance temperature detector (RTD) based micro sensor for minimally invasive breathing analysis monitoring is presented. Experimental results demonstrate that the change in air while inhaling exhaling can be transduced into time varying electrical signal, which subsequently used to determine frequency (respiratory rate). RTD placed Wheatstone bridge simultaneously reduce sensor’s output noise improve overall system accuracy....

In this article, the first experimental demonstration of a non-iterative electronic dispersion compensation (EDC) solution implemented at transmitter using finite impulse response (FIR) filter optimized with Gerchberg-Saxton (GS) algorithm, is presented, for intensity-modulation and direct-detection (IM/DD) systems. The theoretical framework preliminary simulations have been presented in Part I work. Here, performance compared between GS FIR iterative algorithm 56-Gb/s on-off keying (OOK)...

We numerically investigate the generation of photonic nanojets (PNJs) and excitation whispering gallery modes (WGMs) supported by both smooth corrugated dielectric micro-cylinders under point-source illumination. Results show that location defines properties PNJs, whereas stability WGMs exists in but vanishes ones. It is shown acts as an additional degree freedom for controlling characteristics generated PNJs micro-cylinders. Furthermore, influence on excited was diminished micro-cylinders,...

Subcarrier modulation is shown to provide a number of system benefits including complexity savings in dispersion compensation, Kerr nonlinearity mitigation and flexibility spectral efficiency. Design considerations are discussed.