We present a 1 × 2 all-optical packet switch. All the processing of header information is carried out in optical domain. The headers are recognized by employing two-pulse correlation principle semiconductor laser amplifier loop mirror (SLALOM) configuration. processed stored an flip-flop memory that based on symmetric configuration two coupled lasers. drives wavelength routing switch cross-gain modulation amplifier. also alternative concept can be used for buffering data packets. In this...

The free-space narrow infrared beams can offer unprecedented data capacity to devices individually, as they provide non-shared connections that have a large link power budget. By means of fully passive module based on high port count arrayed waveguide grating router (AWGR), many be 2D steered individually using wavelength tuning. applying the defocusing techniques, compact beam steering has been realized. A simultaneous communication at up 112 Gbit/s PAM-4 per shown with an 80-ports AWGR,...

The optical spectrum offers great opportunities to resolve the congestion in radio-based communication, aggravated by booming demand for wireless connectivity. High-speed infrared components 1500 nm window have reached high levels of sophistication and are extensively used already fibre-optic networks. Moreover, light beyond 1400 is eye-safe not noticeable users. Deploying steerable narrow beams, links with huge capacity can be established users individually, at minimum power consumption...

To unlock the cost benefits of space division multiplexing transmission systems, higher spatial multiplicity is required. Here, we investigate a potential route to increasing number mode channels within single core few-mode fiber. Key for longer distances and low computational complexity fabrication fibers with differential group delays. As such in this work, combine wavelength mode-division multiplexed over 4.45 km low-DMGD 6-LP-mode fiber by employing low-loss all-fiber 10-port photonic...

We demonstrate novel optical signal processing functions based on self-induced nonlinear polarization rotation in a semiconductor amplifier (SOA). Numerical and experimental results are presented, which that switch can be employed to achieve all-optical logic. an header system, seed pulse generator for packet synchronization, arbiter buffering at bit rate of 10 Gb/s. Experimental indicate self-polarization have higher extinction ratio lower power operation compared with similar self-phase modulation.

By means of narrow infrared beams very high capacity wireless links can be set up to users individually, while also offering privacy and energy efficiency. Accurate device localization for steering the is required. This has been achieved within 10 cm pico-cell resolution a 2D beam-steered optical communication system by applying matrix miniature corner-cube retro-reflectors. The process self-calibrating, does not need power-consuming elements at receiver. In an indoor laboratory setup,...

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Mode group diversity multiplexing (MGDM) is an optical multiple-input–multiple-output technique that aims at creating independent communication channels over a multimode fiber, using subsets of propagating modes. This letter deals with the analysis MGDM point-to-point link, transparent to transmission format. The geometry mode-group selective multi/demultiplexer optimized in order minimize...

By means of narrow 2D-steerable infrared beams, interference-free individual wireless connections to densely-spaced devices in industry 4.0 settings can be made. Beam steering by fiber-fed passive diffractive beam modules and wavelength-tunable transceivers located a separate controller location enable readily scalable connectivity many their nomadic mobility. To accommodate the dynamics settings, self-calibrating localization retro-reflecting corner cube foils scanning is demonstrated,...

We present a novel indoor communication network using 1-mm core diameter step-index plastic optical fibres as feeder line, and the light emitted by POF-end for wireless data transmission, creating fully passive access point (AP). This has advantage of not requiring electrical powering, resulting in low maintenance. Due to large numerical aperture, POF is extremely divergent, thus lens must be placed front adjust size coverage area enable users movement or increase number served link....

A fully-packaged hybrid-integrated all-optical flip-flop, where InP-based semiconductor optical amplifiers are assembled onto a planar silica waveguide board, is demonstrated. It shown experimentally that the flip-flop can dynamically toggle between its two states by injecting 150 ps pulses with 6 dBm peak power via set and reset port.

We propose and analyse a low-complexity broadband optical wireless receiver based on novel 2-dimensional matrix of photodiodes yielding large aperture wide FoV in an IR beam-steered system. Experimentally more than 1Gbit/s OOK transmission is shown with 10cm beams at FoV=10°.

The intensification of traffic in the access network requires development novel architectural solutions for a reconfigurable topology and components based on optical technologies. We present hybrid ring-shaped wavelength division multiplexing (WDM)–time (TDM) passive (PON) that is capable providing bandwidth demand at high bit rates transparent dynamic manner. Our cost-efficient scalable architecture integratable such as wavelength-agile networking unit microring-resonator-based remote node....

Based on a three-surface prism, free space design of the three-spot mode coupler, supporting LP01 and LP11 modes, is introduced in this letter. We demonstrate 7.68 Tbit/s transmission three division multiplexing (MDM) × 8 wavelength (WDM) 320-Gb/s dual-polarization (DP)-32QAM over 120 km differential-group-delay (DGD)-compensated few-mode fiber (FMF) by employing proposed spot couplers.

This paper presents a novel concept for spatial diversity using plastic optical fibre (POF)-based luminaire transmission in-home networks. We show the feasibility of an system POFs, acting as front-haul, realizing high capacity wireless bidirectional link aided by scheme allowing user mobility around access points. The light coming out 1 mm core diameter step-index POF is highly divergent and, therefore, each POF-end lens placed to adjust size cells, in order allow user's or number users...

The emerging broadband services and the avalanche-like growth of subscribers result in intensification data traffic access networks. This drives development last-mile technologies to support multiservice provision on high bit-rate-capable reconfigurable In this letter, we present first transmission experiments carried out testbed a hybrid wavelength-division-multiplexing/time- division-multiplexing network based cost-efficient elements like an integrated optical add-drop multiplexer...

We describe a novel, fully-packaged, hybrid-integrated all-optical flip-flop memory element. Static state contrast ratios of 10dB and 13dB are demonstrated the can have its changed dynamically every 32ns with introduction state-setting pulses (pulse widths ≪150ps).

24.3GBaud 32QAM WDM transmission over a novel 1km hole-assisted few-mode multi-core fiber is demonstrated, resulting in 5.1Tbit/s spatial supercarriers (4Tbit/s net) with gross spectral efficiency of 102bits/s/Hz, and aggregate rate 255 Tbit/s (200 net).

Free-space infrared beams can offer unprecedented data capacity to devices individually, by means of unshared connections which have a large link power budget. Two solutions based on passive diffractive modules are presented perform wavelength-controlled 2D beam steering while minimizing consumption. Downstream capacities up 112Gbit/s per were experimentally demonstrated. In hybrid system demonstrator, 60GHz techniques provided upstream 5Gbit/s. Also an all-optical optical wireless...

A transmission link comprising wavelength division multiplexing over 1mm core size step-index plastic optical fibre and up to 1.6m free space is demonstrated for indoor wireless communication. Throughputs of more than 2 Gbps has been achieved using wavelengths discrete multitone.

Feature Issue on Optical Interconnection Networks (OIN). We present three optical signal processing functional blocks that enable 1×N packet switching. An ultrafast asynchronous multioutput all-optical header processor is demonstrated with a terahertz asymmetric demultiplexer in combination preprocessor. It shown self-induced polarization rotation can be used for both the and The second block buffering. This laser neural network recirculating buffer. Related to this three-state memory based...

This Letter presents the evaluation and demonstration of an optical free-space (FS) multicasting system for multi-Gigabits-per-second (multi-Gbps) indoor transmission. These simultaneous line-of-sight links are formed by infrared beams beam-steered using a passive diffraction grating. The experiment has resulted in error-free (bit error rate <10(-9) at 2.5 Gbps on-off keying) is scalable to support higher data rates. proposed short-range wireless communication can be seamlessly integrated...