Optimal dispersion of optical filters for WDM systems

The phase response of optical filters determines their dispersive properties and impacts wavelength-division multiplexing (WDM) system performance. We present a general analysis of the phase response of optical filters used in WDM systems and suggest ways to minimize the detrimental dispersive effec...

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Bibliographic Details
Published in:IEEE photonics technology letters 1998-04, Vol.10 (4), p.567-569
Main Authors: Lenz, G., Eggleton, B.J., Madsen, C.K., Giles, C.R., Nykolak, G.
Format: Article
Language:English
Subjects:
Bandwidth
Digital filters
Finite impulse response filter
IIR filters
Nonlinear filters
Optical fiber dispersion
Optical fiber filters
Optical filters
Optical waveguides
Wavelength division multiplexing
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Summary:The phase response of optical filters determines their dispersive properties and impacts wavelength-division multiplexing (WDM) system performance. We present a general analysis of the phase response of optical filters used in WDM systems and suggest ways to minimize the detrimental dispersive effects of these filters. Some filters are found to be inherently linear phase filters and in principle are dispersionless. We also show that some filters may be realized for the phase correction of dispersive filters. Experimental system results demonstrate the negative effects of filter dispersion on system performance.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.662596