Power penalty for optical signals due to dispersion slope in WDM filter cascades

• Published in: 1999 IEEE LEOS Annual Meeting Conference Proceedings. LEOS'99. 12th Annual Meeting. IEEE Lasers and Electro-Optics Society 1999 Annual Meeting (Cat. No.99CH37009) Vol. 2; pp. 671 - 672 vol.2
• Main Authors: Kuznetsov, M., Froberg, N.M., Henion, S.R., Rauschenbach, K.A.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1999
• Subjects: Band pass filters; Bandwidth; Dispersion; Optical distortion; Optical fiber filters; Optical filters; Optical noise; Optical receivers; Passband; Wavelength division multiplexing
• ISBN: 0780356349; 9780780356344
• ISSN: 1092-8081; 2766-1733
• DOI: 10.1109/LEOS.1999.811905

The power penalty due to the dispersion slope of WDM filters limits the number of cascaded filters and restricts the allowed signal-filter detuning. This dispersive penalty is significantly larger for optically-preamplified receivers. The results in this paper apply to systems with arbitrary bit rates. When dispersive penalties become a limitation, chirped Bragg filters with compensated dispersion slope or dispersionless waveguide-grating-router and Mach-Zehnder filters can be used.