Related Experiment Video
Updated: Jun 5, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Small-signal analysis of OOFDM signal transmission with directly modulated laser and direct detection
1Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, 1 University Road, Puli, Nantou, Taiwan, 545. ccwei@ncnu.edu.tw
Abstract:
This work presents a small-signal analysis for investigating the transmission performance of optical orthogonal frequency division multiplexing signals with a directly modulated DFB laser (DML). The analysis shows the positive chirp of DMLs can intensify power fading after transmission with positive dispersion and provide power gain instead with negative dispersion. The power of subcarrier-to-subcarrier intermixing interference after square-law direct detection, however, is independent on the sign of dispersion.
