Nonlinear distortion of Fabry-Perot optical filters in direct modulated dense WDM-SCM video distribution systems

Author

Suzuki, Y. ; Ohta, N. ; Hirabayashi, K.

Author_Institution

NTT Corp., Kanagawa, Japan

Volume

5

Issue

4

fYear

1993

fDate

4/1/1993 12:00:00 AM

Firstpage

466

Lastpage

468

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

amplitude modulation; frequency modulation; optical communication equipment; optical filters; optical links; subcarrier multiplexing; visual communication; wavelength division multiplexing; 40-channel AM-FDM video signals; FM parts; Fabry-Perot optical filters; IM part; chirped laser light; direct modulated dense WDM-SCM video distribution systems; filter detuning shift; filter transmittance tilt; nonlinear distortion; phase difference; second-order distortion; subcarrier multiplexing; transmission experiments; wavelength displacement; wavelength division multiplexing; Fabry-Perot; Fiber nonlinear optics; Laser noise; Nonlinear distortion; Nonlinear optics; Optical distortion; Optical feedback; Optical filters; Optical modulation; Optical refraction;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.212701

Filename

212701