We use a wideband optical comb source with 10THz bandwidth for 2.15 Pb/s transmission over 31km of new, homogeneous 22-core single-mode multi-core fiber using 399 × 25GHz spaced, 6.468 Tb/s spatial-super-channels comprising 24.5GBaud PDM-64QAM modulation in each core.

We report record capacity data transmission at 305 Tb/s over 10.1 km, using space division multiplexing (SDM) with 19 channels. To realize such a large SDM channel number, we fabricated trench-assisted homogeneous 19-core fiber average intercore crosstalk of about -32 dB 1550 nm. also 19-channel multiplexer/demultiplexer free-space optics low insertion losses and additional crosstalk. The signal transmitted through each was 100 wavelength (100 GHz spacing) 2 × 86 Gb/s...

It will be revealed that a myth of deploying low bit-rate uplink fiber-to-the-home (FTTH) services while providing high downlink is wrong. Therefore, for the future broadband FTTH services, focus should on capability to provide gigabit- or even multigigabits-per-second both in up- and downlinks, namely gigabit symmetric systems. Optical code-division multiple access (OCDMA) now deserves revisit as powerful alternative time-division wavelength-division (WDM) In this paper, authors first...

A novel free-space coupling system combined with a multi-core fiber enables upscaling to record space-division-multiplexed (SDM) channel number of 19. We achieve 305Tb/s transmission over 10.1 km using 19-SDM, 100-WDM PDM-QPSK signals.

Abstract Quantum key distribution (QKD) can offer communication with unconditional security and is a promising technology to protect next generation systems. For QKD see commercial success, several challenges have be solved, such as integrating signals into existing fiber optical networks. In this paper, we present experimental verification of co-propagating large number wavelength division multiplexing (WDM) coherent data channels. We show successful secret over 24 h for continuous-variable...

We report the development of a space division multiplexed (SDM) transmission system consisting 19-core fiber and Erbium-doped amplifier (EDFA). A new with an improved core arrangement was employed to achieve low aggregated inter-core crosstalk -42 dB at 1550 nm over 30 km. The EDFA uses shared free-space optics for pump beam combining isolation, thus is SDM transparent has some potential cost reduction. 19.6 23.3 gain 6.0 7.0 noise figure were obtained each channel nm. System feasibility...

We demonstrate record 109-Tb/s transmission of spatial division multiplexed (SDM) signals over 16.8 km using a seven-core fiber. Each SDM channel contains 97 WDM channels on 100-GHz grid and 2×86-Gb/s polarization-multiplexed QPSK signals.

We describe the design and characterization of a 3-type heterogeneous 36-core, 3-mode fiber with record spatial channel count density perform transmission measurements in all 108 channels using 40×100GHz spaced 25GBaud DP-QPSK signals.

We demonstrate transmission of 368-WDM-38-core-3-mode × 24.5-GBaud 64-and 256-QAM signals over 13 km. Record data-rate and spectral-efficiency 1158.7 b/s/Hz were enabled by a low DMD 38-core-3-mode fiber with high uniformity amongst cores.

We describe the design and characterization of a heterogeneous 36-core, three-mode fiber with three core types. Intercore crosstalk for LP <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> modes is estimated to be below -31 dB 5.5 km propagation at pitch 34 μm. Feasibility 108 space/mode division multiplexed transmission investigated using free-space multiplexing/demultiplexing technologies, 40-wavelength multiplexed, 25 GBd, 93.4-Gb/s...

This study presents an evaluation of the time and modulation frequency-varying power transfer crosstalk in a homogeneous multi-core fiber (MCF). Experimental observations using seven-core MCF over period 10 h show that, unlike localized crosstalk, distributed has pronounced frequency response which changes substantially time. is described adaptation previous models for MCFs showing that it results from random time-varying interference between contributions generated at discrete number phase...

Inter-core crosstalk is a potential limitation on the achievable data-rates in optical fiber transmission systems using multi-core fibers. Crosstalk arises from unwanted coupling between cores of homogenous and it's average power has been observed to vary over time by 10s decibels, potentially requiring an additional performance margin achieve acceptable outage probability. Most investigations have so far only considered continuous wave laser light or amplified spontaneous emission as...

Space-division multiplexing (SDM) has been intensively proposed in recent years to overcome the capacity limitations of current single-mode fiber infrastructure and increase efficiency optical transmission systems. Few-mode fibers offer potential transmitting several signals at same wavelength over different modes a with one single core. In this paper, we demonstrate using few-mode fiber-based SDM systems for long-haul transmission. We analyze system such as mode-dependent loss...

A photonic Internet protocol (IP) routing is proposed in which the IP address, mapped onto optical code, recognized by performing correlation time domain a parallel manner. Preliminary experiment shows that it can process 6.5/spl times/10/sup 9/ packets per second. It will help overcome bottleneck current electrical routers; i.e., takes to look up addresses table.

A photonic label switching router (PLSR) of which the processing is based upon optical code correlation, investigated. To resolve electronic router's bottleneck in current Internet protocol (IP) over wavelength division multiplexing (WDM) networks, we will envision IP networks PLSRs totally replace routers. The architectures PLSR including processing, swapping, and their implementations are studied. Results proof-of-concept experiments for swapping confirm feasibility to attain target...

We achieved record 109-Tb/s transmission over 16.8 km, using space division multiplexing (SDM) together with conventional technology. 7-core SDM, 97 WDM (100-GHz spacing), 2 × 86 Gb/s PDM-QPSK signals were used. The spectral efficiency was 11.2 b/s/Hz. SDM realized a multi-core fiber ultra-low-crosstalk (less than -90.0 dB/km at 1550 nm) and high performance MUX/DEMUX. overall crosstalk of -53 dB caused almost no penalty for the transmission.

In this letter, we report on coupling optics for connecting single-core single-mode fibers with multicore fibers. After a brief discussion of the options such systems, describe our approach using bulk to fabricate low-loss and low-crosstalk devices both 7- 19-core free-space design approach. This enables use same device variety whose structural parameters differ from one sample another. We present results experimental evaluations these devices, discuss various causes insertion loss, analyze...

We present results from the first demonstration of a fully integrated SDN-controlled bandwidth-flexible and programmable SDM optical network utilizing sliceable self-homodyne spatial superchannels to support dynamic bandwidth QoT provisioning, infrastructure slicing isolation. Results show that SDN is suitable control plane solution for high-capacity flexible network. It able provision end-to-end requests according user requirements, considering unique characteristics underlying infrastructure.

Space division multiplexing (SDM) is mainly seen as a means to increase data throughput and handle exponential traffic growth in future optical networks. But its role certainly more diverse. Research on SDM encourages device integration, brings new functionality network elements, helps networks evolve. As result, the number of individual components will decrease, which turn improve overall reliability reduce power consumption well operational expenditure. After reviewing state-of-the-art...

We experimentally investigate high-capacity few-mode fiber transmission for short and medium-haul optical links. In separate experiments, we demonstrate C + L band of 283 Tbit/s over a single 30 km span recirculating loop 159 1045 graded-index three mode fiber. The first experiment reached data-rate per within 90% the record data-rates reported in same bands single-mode fibers. second demonstrated feasibility reaching high long distance transmission, despite strong impairments due to...

In the hybrid optical code division multiple access (OCDMA) architectures using different types of encoder/decoder (E/Ds) between an line terminal and network units, a 40G-OCDMA-PON with single multi-port super-structured fiber Bragg grating (SSFBG) E/Ds is studied as candidate system beyond next-generation PON stage 2 (NG-PON2). this paper, we have developed uniformed sampled SSFBG refractive index profiles compared their performances in system. The experimental results show that profile...

We discuss optical transmission using homogeneous, single-mode, multicore fibers. first describe the key fiber properties that can affect transmission, such as intercore crosstalk and variation of propagation delay between cores, consequences these on spatial super-channel transmission. then a series experiments demonstrations system features including self-homodyne detection joint superchannel modulation before discussing their suitability to high-capacity

We investigate the impact of intercore crosstalk on achievable transmission distance three square quadrature amplitude modulation (QAM) formats. show that increasing across an 18 dB range starting from -43.4 dB/100 km reduces for all formats, with a greater higher order For level arising equal signal launch power in each core homogeneous 7-core fiber, we measure reduced at BER 1/4 1.5 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-2</sup>...

bOptical code division multiplexing (OCDM) using optical bipolar and coherent detection is a new method for future fiber-optic communication networks. Some codes, which are described by the combination of phase chip pulses, with repetition frequency 10 GHz generated experimentally. Temporal matched filtering Gb/s OCDM demonstrated encoder decoder, their fundamental properties investigated. Effect interference shown experimentally discussed. The novel system autocorrelation sidelobe...

The performance of the phase-shifted superstructured fiber Bragg grating (SSFBG) for optical code (OC) recognition was investigated with different reflectivity as well input pulse width. auto-correlation peak (PA) and ratios PA to maximum wing level (P/W) cross-correlation (P/C) were used quantitatively evaluate OC performance. There is a conflict between obtaining high P/W P/C in regime. approach applying apodization technique improve regime proposed. comparative experimental investigations...