Nonlinear distortion suppression in directly modulated DFB-LD by dual-parallel modulation

Hyun Do Jung; Sang Kook Han

doi:10.1109/LPT.2002.1012405

Nonlinear distortion suppression in directly modulated DFB-LD by dual-parallel modulation

Hyun Do Jung, Sang Kook Han

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

A novel method to suppress nonlinear distortion of directly modulated laser diode using dual parallel modulation scheme has been proposed. This scheme exploits that the frequency chirping influences the phase of RF signals. Two properly controlled undesired intermodulation signals with out-of-phase difference are cancelled via coherent RF recombination at the photodetector. The validity of this scheme was confirmed through experiments. From experiments, the 20-dB reduction of the third-order intermodulation distortion was achieved and the tunability of suppression region was observed.

Original language	English
Pages (from-to)	980-982
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	14
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2002.1012405
Publication status	Published - 2002 Jul

Bibliographical note

Funding Information:
Manuscript received August 23, 2001; revised February 20, 2002. This work was supported in part by the University Research Program (2001-059-3) and by Ministry of Information and Communication in South Korea. The authors are with the Department of Electrical and Electronic Engineering, Yonsei University, Shinchon-Dong, 120-749 Seoul, Korea (e-mail: skhan@yonsei.ac.kr). Publisher Item Identifier S 1041-1135(02)04613-X.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2002.1012405

Cite this

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title = "Nonlinear distortion suppression in directly modulated DFB-LD by dual-parallel modulation",

abstract = "A novel method to suppress nonlinear distortion of directly modulated laser diode using dual parallel modulation scheme has been proposed. This scheme exploits that the frequency chirping influences the phase of RF signals. Two properly controlled undesired intermodulation signals with out-of-phase difference are cancelled via coherent RF recombination at the photodetector. The validity of this scheme was confirmed through experiments. From experiments, the 20-dB reduction of the third-order intermodulation distortion was achieved and the tunability of suppression region was observed.",

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AB - A novel method to suppress nonlinear distortion of directly modulated laser diode using dual parallel modulation scheme has been proposed. This scheme exploits that the frequency chirping influences the phase of RF signals. Two properly controlled undesired intermodulation signals with out-of-phase difference are cancelled via coherent RF recombination at the photodetector. The validity of this scheme was confirmed through experiments. From experiments, the 20-dB reduction of the third-order intermodulation distortion was achieved and the tunability of suppression region was observed.

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Nonlinear distortion suppression in directly modulated DFB-LD by dual-parallel modulation

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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