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23 December 2015 Nonlinear distortion evaluation in a directly modulated distributed feedback laser diode-based fiber-optic cable television transport system
Chung-Yi Li, Cheng-Ling Ying, Chun-Yu Lin, Chien-An Chu
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Optical Engineering, Vol. 54, Issue 12, 126112 (December 2015). https://doi.org/10.1117/1.OE.54.12.126112
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.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Chung-Yi Li, Cheng-Ling Ying, Chun-Yu Lin, and Chien-An Chu "Nonlinear distortion evaluation in a directly modulated distributed feedback laser diode-based fiber-optic cable television transport system," Optical Engineering 54(12), 126112 (23 December 2015). https://doi.org/10.1117/1.OE.54.12.126112
Published: 23 December 2015
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KEYWORDS
Modulation
Complex systems
Distortion
Semiconductor lasers
Fiber optics
Optical fiber cables
Televisions
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