Title :
Lightwave single sideband wavelength self-tunable filter using an InP:Fe crystal for fiber-wireless systems
Author :
Vourch, E. ; Berre, D. Le ; Hervé, D.
Author_Institution :
Lab. of Electron. & Telecommun. Syst., Brest, France
Abstract :
A new optical single sideband filter is presented to compensate for chromatic dispersion effects in fiber-wireless systems. The device is based on three dynamic Bragg gratings, which are generated in a photorefractive iron-doped indium phosphide (InP:Fe) crystal. This filter is controlled by the input optical double sideband signal itself, which makes it independent of the modulated optical carrier wavelength. In this paper, the principle of the device is presented and demonstrated. Experiments include a 14-km fiber transmission followed by a 3-m radio link carrying a 140-Mb/s binary phase-shift keyed data stream at 16 GHz.
Keywords :
Bragg gratings; doping profiles; indium compounds; iron; microwave links; optical communication equipment; optical fibre communication; optical fibre dispersion; optical fibre filters; optical tuning; phase shift keying; photorefractive materials; 14 km; 140 Mbit/s; 16 GHz; 3 m; InP:Fe; InP:Fe crystal; binary phase-shift keyed data stream; chromatic dispersion effects; dynamic Bragg gratings; fiber transmission; fiber-wireless systems; input optical double sideband signal controlled filter; lightwave single sideband wavelength self-tunable filter; modulated optical carrier wavelength; optical single sideband filter; photorefractive InP:Fe crystal; photorefractive effect; photorefractive iron-doped indium phosphide crystal; radio link; Bragg gratings; Chromatic dispersion; Indium phosphide; Optical control; Optical fiber devices; Optical fiber filters; Optical filters; Optical modulation; Photorefractive materials; Radio link;
Journal_Title :
Photonics Technology Letters, IEEE
