Paper
2 February 2001 Robust equalizer in optical fiber systems under parameter uncertainty
Kyungsup Kim, Jinho Bae, Joohwan Chun
Author Affiliations +
Proceedings Volume 4216, Optical Devices for Fiber Communication II; (2001) https://doi.org/10.1117/12.414115
Event: Information Technologies 2000, 2000, Boston, MA, United States
Abstract
An H(infinity )-optimized equalizer is presented to realize an optimal causal and stable equalizer in optical fiber systems. With an ordinary (non-adaptive) equalizer, uncertainty due to the length of an optical fiber, the number of users and temperature may cause degradation to the system performance. The proposed non-adaptive equalizer still gives satisfactory performance because it uses the H(infinity )-criterion, i.e., it is designed to cope with the worst-case. Our algorithm is robust while the channel characteristics and the statistics of input and external noise are uncertain with a bound. Moreover, while the conventional H(infinity ) approach is to minimize the peak error gain over the entire frequency range, we propose a modified H(infinity ) equalizer to focus on the limited used frequency region by using a weight function.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kyungsup Kim, Jinho Bae, and Joohwan Chun "Robust equalizer in optical fiber systems under parameter uncertainty", Proc. SPIE 4216, Optical Devices for Fiber Communication II, (2 February 2001); https://doi.org/10.1117/12.414115
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KEYWORDS
Optical fibers

Error analysis

Electronic filtering

Interference (communication)

Telecommunications

Filtering (signal processing)

Dispersion

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