Title :
Subnanosecond tunable laser using a single electroabsorption tuning super structure grating
Author :
Alibert, G. ; Delorme, F. ; Boulet, P. ; Landreau, J. ; Nakajima, H.
Author_Institution :
France Telecom, CNET, Bagneux, France
fDate :
7/1/1997 12:00:00 AM
Abstract :
A new tunable laser structure using a single electroabsorption (EA) tuning super structure grating section for fast wavelength switching operation, has been realized. The tuning mechanism of this absorption change distributed Bragg reflector (DBR) laser is based on a localized absorption variation induced in a multielectrode EA-SSG section. These devices exhibit a 2.5-nm tuning range with three modes and a switching time, between two successive wavelength channels, shorter than 250 ps. The output power variation under tuning is lower than 1.2 dB.
Keywords :
distributed Bragg reflector lasers; electro-optical switches; electroabsorption; high-speed optical techniques; holographic gratings; integrated optics; laser modes; laser tuning; quantum well lasers; 2.5-nm tuning range; 250 ps; DBR laser; InP-InGaAsP; MQW stack; absorption change distributed Bragg reflector laser; fast wavelength switching operation; localized absorption variation; modes; multielectrode EA-SSG section; output power variation; single electroabsorption tuning super structure grating; subnanosecond tunable laser; successive wavelength channels; switching time; tuning mechanism; Absorption; Distributed Bragg reflectors; Gratings; Laser modes; Laser transitions; Laser tuning; Power generation; Reflectivity; Switches; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
