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Optical Engineering • Open Access

Nonlinear distortion evaluation in a directly modulated distributed feedback laser diode-based fiber-optic cable television transport system
Author(s): Chung-Yi Li; Cheng-Ling Ying; Chun-Yu Lin; Chien-An Chu

Paper Abstract

This study evaluated a directly modulated distributed feedback (DFB) laser diode (LD) for cable TV systems with respect to carrier-to-nonlinear distortion of LDs. The second-order distortion-to-carrier ratio is found to be proportional to that of the second-order coefficient-to-first-order coefficient of the DFB laser diode driving current and to the optical modulation index (OMI). Furthermore, the third-order distortion-to-carrier ratio is proportional to that of the third-order coefficient-to-first-order coefficient of the DFB laser diode driving current, and to the OMI2.

Paper Details

Date Published: 23 December 2015
PDF: 4 pages
Opt. Eng. 54(12) 126112 doi: 10.1117/1.OE.54.12.126112
Published in: Optical Engineering Volume 54, Issue 12
Show Author Affiliations
Chung-Yi Li, National Taipei Univ. of Technology (Taiwan)
Cheng-Ling Ying, JinWen Univ. of Science & Technology (Taiwan)
Chun-Yu Lin, National Taipei Univ. of Technology (Taiwan)
Chien-An Chu, National Taipei Univ. of Technology (Taiwan)


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