搜索结果: 1-15 共查到“光学工程 Recovery”相关记录24条 . 查询时间(0.095 秒)
Multi-stage Carrier Phase Recovery and Nonlinear Polarization Crosstalk Canceller for XPM Mitigation
Coherent communications Nonlinear optics fibers
2015/5/26
Novel XPM mitigation technique by coordination of carrier phase recovery and nonlinear polarization crosstalk canceller is proposed. It doubles the Q improvement over conventional method in 112Gb/s DP...
Carrier Recovery and Equalization for Photonic-Wireless Links with Capacities up to 40 Gb/s in 75-110 GHz Band
Coherent communications Radio frequency photonics
2015/5/21
Novel robust digital carrier phase/frequency recovery structure is experimentally demonstrated for single carrier and multi-carrier, up to 40Gb/s, photonic-wireless links in 75-110 GHz band. We show t...
World-First Experimental Demonstration of Synchronous Clock Recovery in an 11.25Gb/s Real-Time End-to-End Optical OFDM System Using Directly Modulated DFBs
Synchronous Clock Recovery Real-Time End-to-End Optical OFDM System Directly Modulated DFBs
2015/5/20
A simple, highly-effective, DSP-free, optical OFDM(OOFDM) synchronous clock recovery technique preserving system performance and enhancing stability is proposed and experimentally demonstrated, for th...
Low Computation Complexity Two-Stage Feedforward Carrier Recovery Algorithm for M-QAM
Low Computation Complexity Two-Stage FeedforwardCarrier Recovery Algorithm M-QAM
2015/5/20
We propose a modified two-stage feedforward carrier recovery algorithm for M-QAM formats that achieves a 3x reduction in computation complexity compared to a single-stage algorithm. When combining wit...
Low-Complexity, Blind Phase Recovery for Coherent Receivers Using QAM Modulation
Low-Complexity Blind Phase Recovery Coherent Receivers QAM Modulation
2015/5/20
We propose a new hybrid PLL/ML phase estimation method for low-complexity, blind phase recovery for M-QAM modulation. The linewidth tolerance of the proposed method is more than one order of magnitude...
Ultimate Single-Carrier Recovery for Coherent Detection
Ultimate Single-Carrier Recovery Coherent Detection
2015/5/20
Proposed adaptive decision-feedback CR method is “ultimate” in the sense that it is ML/MMSE optimal (its performance cannot ever be exceeded) while its complexity vs. the num-ber of taps, L, is lowest...
650 Gbit/s OTDM Transmission over 80 km SSMF Incorporating Clock Recovery, Channel Identification and Demultiplexing in a Polarisation Insensitive Receiver
Fiber optics communications Optical communications
2015/6/10
Error free low penalty 650 Gbit/s OTDM transmission is demonstrated using a polarisation independent receiver based on FWM for demultiplexing. Spectral shaping in the transmitter and filtering in the ...
All-Optical Carrier Recovery with Periodic Optical Filtering for Wavelength Reuse in RSOA-based Colorless Optical Network Units in Full-Duplex 10Gbps WDM-PONs
Fiber optics communications Modulation All-optical devices
2015/6/10
Optically assisted downstream cancellation for wavelength reuse in WDM-PONs is demonstrated, allowing downstream extinction ratios up to 9dB for symmetrical full-duplex data transmission at 10Gbps wit...
Demonstration of Energy Conserving TDM-PON with Sleep Mode ONU using Fast Clock Recovery Circuit
Fiber optics components Networks
2015/6/9
A n energy conserving TDM-PON architecture using sleep mode ONU is presented. Sleep mode ONU with fast wake-up capability is demonstrated. The architecture employs novel just-in-time sleep control sch...
Bit-Rate Tunable Clock Recovery of NRZ-DPSK Signal Based on Delay-Asymmetric Nonlinear Loop Mirror and Stimulated Brillouin Scattering Loop
Nonlinear optical signal processing Scattering stimulated Brillouin Nonlinear optics four-wave mixing
2015/6/8
We demonstrate bit-rate tunable clock recovery of NRZ-DPSK signal. The signal is converted to RZ-OOK by demodulation and by phase erasure. Recovered clock signals from 4 to 13 GHz are obtained through...
Joint Equalization and Timing Recovery for Coherent Fiber Optic Receivers
Joint Equalization Timing Recovery Coherent Fiber Optic Receivers
2015/7/30
A new low-complexity, dispersion-robust digital timing recovery for coherent systems is presented as a joint implementation with the FIR-equalizer, demonstrated for 112Gb/s RZ-CP-QPSK.
Evaluation of Recovery Methods for Layer-1 Bandwidth on Demand Service
Recovery Methods Bandwidth Demand Service
2015/7/17
This paper proposes and evaluates recovery methods for high-availability layer-1 BoD service. It also proposes a segment recovery architecture that hides the recovery operation from the users’ view. E...
Faults and Recovery Methods in Regional Undersea OADM Networks
Faults and Recovery Methods Regional Undersea OADM Networks
2015/7/17
An experimental study of faults in an important class of undersea OADM networks demonstrates that channel performance through surviving segments can be recovered by the terminal-based procedures enabl...
High Sensitive Clock Recovery for a 160Gbit/s OTDM Signal by Optoelectronic Phase-Locked Loop Technique
Sensitive Clock Recovery OTDM Signal Optoelectronic Phase-Locked Loop Technique
2015/7/17
We demonstrate high sensitive clock recovery for a 160Gbit/s OTDM signal realized by an optoelectronic phase-locked loop with new configuration. The recovered 10GHz clock has timing jitter of 101fs fo...
XPM Tolerant Adaptive Carrier Phase Recovery for Coherent Receiver Based on Phase Noise Statistics Monitoring
XPM Tolerant Adaptive Carrier Phase Recovery Coherent Receiver Phase Noise Statistics
2015/7/17
According to the monitored phase noise statistics, the averaging weights in carrier phase recovery is adaptively optimized. Comparing with existing optimization techniques, 1dB Q value improvement can...