Title :
Four-channel tunable optical notch filter using InGaAsP/InP reflection gratings
Author :
Weber, J.-P. ; Stoltz, B. ; Dasler, M. ; Koek, B.
Author_Institution :
Fiber Opt. Res. Center, Ericsson Telecom AB, Stockholm, Sweden
Abstract :
A new tunable optical notch filter for use in wavelength division multiplexing (WDM) transmission system has been fabricated in the InGaAsP/InP material system for use at 1.55 μm. The device uses tunable reflection gratings in a waveguide to control the channels (4 in this case). Crosstalk levels between 9 dB and 20 dB have been measured, depending on the channel. System experiments at 150 Mb/s show less than 1 dB crosstalk penalty at 10/sup /spl minus/9/ bit-error rate.
Keywords :
III-V semiconductors; diffraction gratings; gallium arsenide; indium compounds; multiplexing equipment; optical communication equipment; optical filters; reflectivity; tuning; wavelength division multiplexing; 1.55 mum; 150 Mbit/s; InGaAsP-InP; InGaAsP/InP reflection gratings; bit-error rate; channel control; crosstalk levels; crosstalk penalty; four-channel; tunable optical notch filter; tunable reflection gratings; wavelength division multiplexing; Bit error rate; Gratings; Indium phosphide; Optical crosstalk; Optical filters; Optical materials; Optical reflection; Optical waveguides; Wavelength division multiplexing; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
