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Proceedings Paper

High-speed optical transmission system using 1.55-um directly modulated lasers
Author(s): Hoon Kim
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Paper Abstract

We present the small-signal frequency responses of single-mode fiber used in directly modulated laser/direct detection (DML/DD) and externally modulated transmitter/direct detection (EXT/DD) systems, and compare the dispersion tolerance of these two systems. We find out that DML/DD system could be more tolerant to fiber chromatic dispersion than EXT/DD system when an electrical equalizer is employed at the receiver. We also present the transmission of 56- Gb/s 4-level pulse amplitude modulation signals generated from a 1.55-μm DML over 20-km standard single-mode fiber with the aid of a linear electrical equalizer. The performance behavior of this system with respect to the transmission distance is explained by using the frequency response.

Paper Details

Date Published: 10 January 2018
PDF: 6 pages
Proc. SPIE 10617, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 1061707 (10 January 2018); doi: 10.1117/12.2295011
Show Author Affiliations
Hoon Kim, KAIST (Korea, Republic of)


Published in SPIE Proceedings Vol. 10617:
2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing
Liquan Dong; Yi Dong; Jian Chen; Fabien Bretenaker, Editor(s)

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