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We report the first successful real-time superchannel trials up to 5.6Tb/s over 359km and 2Tb/s over a live 727km link using 64GBaud flexible-rate transponders, demonstrating long term error-free performance and fast capacity turn-up of ∼2Tb/min.
Emerging UV to blue light emitting scintillation materials promise improved radiation detection capabilities such as dual neutron-gamma detection and higher energy resolution. The use of traditional photomultiplier tubes (PMTs), with their associated high-voltage electronics often represents form factor and power-limiting component. The unique capabilities of a solid-state photomultiplier (SSPM) provides...
A new way to provide protection in TDM PONs is proposed and evaluated. It is shown that very low investment is needed to provide protection. In this way the total cost can be reduced due to the diminution of the OPEX related to the failure management.
We demonstrate direct-coupling of vertical-cavity surface-emitting lasers to suspended-core PCFs and present characterization of this gas sensor. The spectral background and power-overlap from 763-2004 nm are measured to determine the quantitative detection sensitivity.
We proposed RF direct-detection vector signal generation using optical I/Q up-conversion. The Gram-Schmidt orthogonalization procedure is employed to compensate I/Q imbalance. After transmission over 100-km SMF, penalties of 5-Gb/s QPSK signals can be ignored.
A record 28-Gb/s 16-QAM OFDM system within 7-GHz license-free band at 60 GHz employing all-optical up-conversion with frequency quintupling is experimentally demonstrated. Negligible penalty is observed following 100-km SMF transmission without any dispersion compensation.
Hybrid access network integrated with multi-level wireless vector signal and wireline OOK signal without optical filter is proposed for the first time. 312.5-MSymbol/sec RF 8-PSK signal and 1.25-Gb/sec BB signal are experimentally demonstrated.
This study demonstrates a novel filterless frequency quadrupling technique for optical millimeter-wave generation and WDM up-conversion. After transmission of 50-km SMFF, the sensitivity penalty of each channel is less than 1.5 dB.
The generation of optical millimeter-wave with frequency 8-tupling is experimentally demonstrated. 625-Mb/sec QPSK data transmission at 105-GHz (W-band) is achieved for the first time using the millimeter-wave generation technique and direct modulation of a NBUTC-PD.
A novel 60-GHz photonic millimeter-wave signal generation using a frequency quadrupling technique is proposed for the first time. A 312.5-MSym/s 8-QAM millimeter-wave signal at 60 GHz is demonstrated with negligible penalty following 25-km SMF transmission.
We experimentally demonstrate 10-Gb/s OFDM-QPSK signal with negligible penalty following 100-km SSMF transmission within 7-GHz unlicensed band at 60-GHz for the first time. The proposed scheme proves to be a viable solution for long-reach 60-GHz RoF system.
A novel all optical WDM up-conversion system using frequency quadruple technique is proposed. The proposed system can be utilized in the future 60-GHz band WiMAX RoF system.
5 Gb/s 16 QAM OFDM signal for ROF downstream link and 1.25 Gb/s OOK signal via RSOA for upstream link are demonstrated. Negligible penalty is observed after 25 km SMF.
Both highly spectral-efficient direct-detection 15-Gb/s 64-QAM and 20-Gb/s 16-QAM OFDM signals are demonstrated. Negligible penalty is observed following 25-km SMF transmission.
A multi-services hybrid access network has been experimentally demonstrated. The scheme has no RF fading issue; can carry vector signals, and requires no optical filter at remote nodes.
Attacks in Transparent Optical Networks present a serious security threat to successful network operation due to the high data rates involved and the vulnerabilities associated with transparency. Typical physical layer attacks can involve injecting high-powered jamming signals on legitimate data channels to exploit vulnerabilities in optical components such as crosstalk in switches and fibers, and...
Soliton self-frequency shifting from 1 mum to 1.5 mum, connecting the ytterbium and erbium emission wavelengths, is demonstrated. It is confirmed that the timing jitter induced by the shifting is mainly caused by the laser intensity noise.
Next generation light sources demand femtosecond-level synchronization of its subcomponents over distances of several km. We demonstrate an optical synchronization system based on distribution of mode-locked pulses over optical fiber in a real accelerator environment.
We experimentally studied the cascadability of a 200 GHz channel spaced ROADM for Metro network applications using a re-circulating loop. After seven cascaded nodes and 1100-km transmission, a 2.5 dB sensitivity penalty was observed.
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