Complementary FIR Filter Pair for Distributed Impairment Compensation of WDM Fiber Transmission

A method of designing a complementary filter pair is proposed to reduce error accumulation in the split-step backward propagation for distributed impairment compensation of wavelength-division-multiplexing transmission. The complementary filter pair is designed so that the individual errors of the t...

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Veröffentlicht in:	IEEE photonics technology letters 2009-03, Vol.21 (5), p.292-294
Hauptverfasser:	Likai Zhu, Xiaoxu Li, Mateo, E., Guifang Li
Format:	Artikel
Sprache:	eng
Schlagworte:	Compensation Complementary filter pair Conferences Design methodology Digital filters Errors Fiber optics Fibers Finite impulse response filter Frequency response Impairment impairment compensation optical communication Optical fiber communication Optical fiber filters Optical fibers Optical filters Optical receivers Sampling methods Wave propagation Wavelength division multiplexing
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Beschreibung
Zusammenfassung:	A method of designing a complementary filter pair is proposed to reduce error accumulation in the split-step backward propagation for distributed impairment compensation of wavelength-division-multiplexing transmission. The complementary filter pair is designed so that the individual errors of the two filters cancel each other. A 12 times 100 Gb/s 16-ary quadrature amplitude modulation transmission system in nonzero dispersion-shifted fiber is simulated using such a filter pair. The required filter length is halved by the complementary filter pair design for a transmission distance of 1200 km.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2008.2010871