The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We report on the potential of coded modulation to enable capacity transport optimization for short-reach interconnects. Using 2D-coded formats we demonstrate single wavelength 25Gb/s-granularity multi-rate transmission over distances ranging from 2 to 5 km.
We report on a fully integrated 16-channel polarization diversity fast slot-blocker with 100 GHz channel spacing using silicon photonics. We demonstrated extinction ratio of 20 dB and switching time of 10 ns timescale allowing add-drop operation as high as 320 Gbit/s PDM-32QAM signals.
We report on the use of 4-Dimension coded modulation for short-reach interfaces. With low extra complexity, 4D-coded PAM4 enables a performance improvement when associated with low-latency and low-complexity FEC, as demonstrated by experimental results.
We propose a torus topology to interconnect Optical Slot Switching rings using elastic-rate transponders. Power consumption in mega-datacenters can be reduced by more than 3x and interfaces and cables by more than 500x when compared with the traditional Ethernet architecture.
We demonstrate a single-polarization driver-free, direct-detection 56-GBaud PAM-8 transceiver enabled by a high-speed selector power DAC fabricated in InP DHBT, and successfully transmit 168 Gbit/s line-rate over 2 km distance without optical amplification.
We demonstrate a novel fully integrated, silicon-on-insulator, 16-channel polarization diversity fast reflective slot-blocker with nanosecond switching time, integrating more than 65 functional elements. Its suitability for use in reconfigurable metropolitan networks is assessed.
A 112-Gb/s PAM4 transmitter module which integrates InP DFB and EAM demonstrated for the first time 2 km transmission with only 3-taps equalizer due to 50 GHz bandwidth, >13 dB extinction ratio and 1.5 mW output power.
We experimentally evaluate performances of QPSK, 8- and 16-QAM signals after traversing a long cascade of up to 50 SOAs and assess system design rules for an optical packet-switched SOA-based network.
We synthesize a single-carrier optical signal at a record 1-Tb/s line-rate, out of multiple spectral slices by joint optical and digital signal processing. The 127.9-GBd signal is successfully transmitted and detected after 3,000km distance.
We propose a novel cost efficient node architecture for a wavelength division multiplexed packet-switched network based on reflective integrated device. We demonstrate a 16-channel, silicon-on-insulator, reflective monolithic integrated slot-blocker that integrates one arrayed waveguide grating, 16 variable optical attenuators, 16 Bragg grating mirrors and one vertical fiber coupler. Small-form factor...
We review the measurements of inter-modal nonlinear effects performed on a 4.7-km few-mode fiber where both inter-modal cross-phase modulation and inter-modal four-wave mixing were observed.
Recent progresses on monolithic InP integration are presented for achieving high-performance transmitters for cost-sensitive metropolitan networks. We demonstrate the generation of advanced modulation format using two types of integrated transmitters with prefixed optical phases. Complex modulation formats are generated with constellations exploiting the whole complex plane such as BPSK, quadrature...
In dispersion-unmanaged 100-Gbit/s single-channel transmission, the one-to-one relationship between error-rate and noise variance does not hold at high powers. More accurate error assessment than with Gaussian modeling can be obtained by involving high order statistics.
We study the generation of novel 2D modulation formats (N-QIM) based on intensity modulations with prefixed optical phases. Such new scheme is implemented with InP photonic integration and compared to 2ASK–2PSK modulation format.
We demonstrate a 16-channel, silicon-on-insulator, monolithic integrated slot-blocker. This silicon photonic circuit includes two arrayed waveguide gratings, 16 variable optical attenuators and two vertical fiber couplers. We successfully operate it with 56 Gb/s and 80 Gb/s QPSK optical packets.
In a novel concept for intra-datacenter networks, we combine optical slot switching and elastic, burst-mode transponders, with variable bit-rate from 100 to 250 Gb/s depending on node count. Our scenario requires ∼x400 fewer transponders than today's 10 Gb/s electronic networks
We demonstrate a fully integrated InP transmitter at data rate up to 224Gb/s using 2ASK-2PSK modulation with polarization division multiplexing. We assess its suitability for cost-sensitive
We report the results of an experimental investigation of inter-modal nonlinearities in a 4.7-km few-mode fiber (FMF). Both inter-modal cross-phase modulation (IM-XPM) and inter-modal four-wave mixing (IM-FWM) have been observed between waves separated by a several Terahertz.
We present single-scan measurements of the transfer matrix of space-division multiplexed systems including the mode-multiplexers and fibers. We obtain the mode-dependent loss, and differential group delay over 110-nm of bandwidth of a 4.7-km 3-mode fiber.
We experimentally demonstrate broadband four-wave mixing (FWM) between two spatial modes of a 5-km-long few-mode fiber. We show that, in contrast to FWM in single-mode fibers, inter-modal FWM (IM-FWM) can be better phase matched for waves well separated in frequency (a few THz) than when they are closely spaced (tens of GHz).
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.