Nonlinear distortion of Fabry-Perot optical filters in direct modulated dense WDM-SCM video distribution systems
- 1 April 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 5 (4) , 466-468
- https://doi.org/10.1109/68.212701
Abstract
Fabry-Perot-type optical filters (FPFs) are found to induce nonlinear distortion in dense wavelength division multiplexing with subcarrier multiplexing (WDM-SCM) analog video distribution systems. An analysis of the distortion caused by the interaction of filter transmittance tilt with chirped laser light determines that second-order distortion, which is greatly influenced by filter detuning shift and phase difference between IM and FM parts of the laser light, can be eliminated when the phase difference is 0 or pi , and wavelength displacement between LD output and the FPF is equal to one-half the laser chirp parameter. Transmission experiments using 40-channel AM-FDM video signals support these statements.Keywords
This publication has 6 references indexed in Scilit:
- Polarization-independent tunable wavelength-selective filter using a liquid crystalIEEE Photonics Technology Letters, 1991
- Distortion due to gain tilt of erbium-doped fiber amplifiersIEEE Photonics Technology Letters, 1991
- Time-resolving wavelength chirp with Fabry-Perot etalons and gratings: a theoretical approachJournal of Lightwave Technology, 1991
- 160-channel FM-video transmission using optical FM/FDM and subcarrier multiplexing and an erbium doped optical fibre amplifierElectronics Letters, 1990
- Lightwave CATV systems using frequency-modulated laser and interferometerElectronics Letters, 1989
- Magnitude and phase characteristics of frequency modulation in directly modulated GaAlAs semiconductor diode lasersJournal of Lightwave Technology, 1985