Low-Complexity Frequency Packing to Enable Filtering-Tolerant DSCM Transmission.

Romil K. Patel,Sami Mumtaz,Marco A. Fernandes,Beatriz M. Oliveira,Gabriel Charlet,Yu Zhao,Paulo P. Monteiro,Abel Lorences-Riesgo,Fernando P. Guiomar

Optical Fiber Communications Conference and Exhibition（2024）

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Abstract

Employing optimized frequency packing over digital subcarrier multiplexing (DSCM), we exploit the mitigation of WSS filtering penalties. After transmitting a 60 Gbaud 8-DSCM with 0.2 roll-off over 5-10 WSSs, we experimentally demonstrate OSNR gains of >3 dB, without additional DSP complexity.

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Key words

Digital Subcarrier Multiplexing,Additional Complexity,Frequency Domain,Optical Amplifier,Forward Error Correction,Pulse Shape,Arbitrary Waveform Generator,dB Gain,Wavelength Division Multiplexing,Optical Spectrum Analyzer,Inter-symbol Interference,Amplified Spontaneous Emission,Variable Optical Attenuator,Real-time Oscilloscope,Roll-off Factor

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