Title :
Application of DBR mode-locked lasers in millimeter-wave fiber-radio system
Author :
Ohno, Tetsuichiro ; Sato, Keuji ; Fukushima, Seiji ; Doi, Yoshiyuki ; Matsuoka, Yutaka
Author_Institution :
NTT Photonics Labs., Kanagawa, Japan
Abstract :
An actively mode-locked laser (MLLD) integrated with a distributed Bragg reflector (DBR) was used as a light source for optical subcarrier transmission. The millimeter (mm)-wave power penalty due to fiber dispersion is suppressed within 4 dB by operating this laser in a symmetric four-mode configuration. The experimental results agree well with the calculation of dispersion-induced penalty for a four-component-lightwave source. Optical subcarrier transmission free from dispersion-induced penalty within experimental error is achieved by further suppression of the end-modes of the DBR-MLLD using a fiber Bragg grating (FBG).
Keywords :
Bragg gratings; distributed Bragg reflector lasers; laser mode locking; light sources; microwave photonics; optical fibre dispersion; optical fibre subscriber loops; radio access networks; semiconductor lasers; DBR mode-locked lasers; actively mode-locked laser; dispersion-induced penalty; distributed Bragg reflector; end-modes; fiber Bragg grating; fiber dispersion; four-component-lightwave source; light source; millimeter-wave fiber-radio system; mm-wave power penalty; optical subcarrier transmission; symmetric four-mode configuration; Bragg gratings; Dispersion; Distributed Bragg reflectors; Fiber gratings; Fiber lasers; Frequency; High speed optical techniques; Laser mode locking; Optical fibers; Optical modulation;
Journal_Title :
Lightwave Technology, Journal of
