Title :
Extended modulation bandwidth of DBR and external cavity lasers by utilizing a cavity resonance for equalization
Author :
Morthier, Geert ; Schatz, Richard ; Kjebon, Olle
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Belgium
Abstract :
We have investigated the occurrence of a second resonance frequency in distributed Bragg reflector laser diodes and the high modulation bandwidth resulting from it. The influence of different laser parameters has been theoretically investigated. It is also shown that a similar behavior can be obtained in laser diodes with a passive, low-loss, and gratingless external cavity. The possibilities of large-signal digital modulation are also investigated.
Keywords :
distributed Bragg reflector lasers; electro-optical modulation; laser cavity resonators; laser theory; optical losses; semiconductor device models; semiconductor lasers; DBR laser diodes; DBR lasers; cavity resonance; distributed Bragg reflector laser diodes; equalization; extended modulation bandwidth; external cavity lasers; gratingless external cavity; large-signal digital modulation; laser parameters; low-loss; second resonance frequency; Bandwidth; Capacitive sensors; Diode lasers; Distributed Bragg reflectors; Gratings; Laser modes; Laser theory; Resonance; Resonant frequency; Semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
