Experimental Demonstration of an Optimized 16-ary Four-Dimensional Modulation Format Using Optical OFDM

We experimentally demonstrate the best known 16-ary 4-d modulation format at 24.8 Gb/s using coherent optical OFDM, achieving 0.58 dB OSNR gain over PDM-QPSK at a SER of 10−2. With 7% overhead optimal codes, a 0.38 dB gain is theoretically achievable

White Gaussian Noise Based Capacity Estimate and Characterization of Fiber-Optic Links

We use white Gaussian noise as a test signal for single-mode and multimode transmission links and estimate the link capacity based on a calculation of mutual information. We also extract the complex amplitude channel estimations and mode-dependent loss with high accuracy.Comment: submitted to The Optical Networking and Communication Conference (OFC) 201

Measurements of Frequency Instabilities and Slow Random Evolution of Inter-Modal Four-Wave Mixing in Few-Mode Fibers

Large fluctuations of inter-modal four-wave mixing between the LP01 and LP11 modes of a few-mode fiber are experimentally observed. These fluctuations exhibit strong frequency dependence and can be persistent in time

Review of Experimental Observations of Intermodal Nonlinearities in a Few-Mode Fiber

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

Power Fluctuations of Intermodal Four-Wave Mixing in Few-Mode Fibers

We demonstrate the full bandwidth measurement of the intermodal four-wave mixing efficiency for a 4.7-km three-spatial-mode few-mode fiber. Large fluctuations of intermodal four-wave mixing between the LP modes are experimentally observed. These fluctuations exhibit a strong wavelength dependence that can be persistent in time. The fluctuations are also shown to display some polarization dependence

Mode-Multiplexed 16-Qam Transmission Over 2400-Km Large-Effective-Area Depressed-Cladding 3-Mode Fiber

We demonstrate 2400 km mode-multiplexed 16-QAM transmission over a low DMGD (27.1 ps/km) and low MDL (1.75 dB) 3-mode fiber link. The large effective-area 3-mode fiber is shown to outperform a standard single-mode fiber for distances up to 4500km

White Gaussian Noise Based Capacity Estimate And Characterization Of Fiber-Optic Links

We use white Gaussian noise as a test signal for single-mode and multimode transmission links and estimate the link capacity based on a calculation of mutual information. We also extract the complex amplitude channel estimations and mode-dependent loss with high accuracy

White Gaussian Noise Based Capacity Estimate And Characterization Of Fiber-Optic Links

We use white Gaussian noise as a test signal for single-mode and multimode transmission links and estimate the link capacity based on a calculation of mutual information. We also extract the complex amplitude channel estimations and mode-dependent loss with high accuracy

Mode-Equalized Distributed Raman Amplification in 137-Km Few-Mode Fiber

We experimentally demonstrate 8 dB of mode-equalized distributed Raman gain using a backward pumping scheme. The equivalent noise figure of the amplifier is -1.5 dB, and the amplifier was successfully employed to demonstrate 6-channel mode-multiplexed MIMO transmission over 137-km few-mode fiber