Title :
Improvement of the wavelength switching behavior of semiconductor tunable lasers through optical feedback from a periodic reference filter based on a novel prism-based implementation of a Fox-Smith resonator
Author :
Moeyersoon, Bart ; Morthier, Geert ; Bockstaele, Ronny ; Baets, Roel
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Gent, Belgium
Abstract :
We show that the wavelength switching behavior of semiconductor tunable lasers can be improved through optical feedback from a stable reference filter. The filter is based on a novel prism-based implementation of a Fox-Smith resonator and has a response consisting of periodically spaced peaks, both in reflection and transmission. The improvement of the wavelength switching behavior stems from the suppression of the thermally induced wavelength drift associated with the switching of the tuning currents.
Keywords :
laser cavity resonators; laser feedback; laser tuning; optical filters; optical prisms; optical switches; semiconductor lasers; Fox-Smith resonator; optical feedback; optical reflection; optical transmission; periodic reference filter; prism-based implementation; semiconductor lasers; stable reference filter; thermally induced wavelength drift; tunable lasers; tuning current switching; wavelength switching behavior; Laser feedback; Laser stability; Laser tuning; Optical feedback; Optical filters; Optical reflection; Optical resonators; Resonator filters; Semiconductor lasers; Tunable circuits and devices; Optical communication; optical switching; tunable lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856384
