Title :
Widely Vernier tunable external cavity laser including a sampled fiber Bragg grating with digital wavelength selection
Author :
Bergonzo, A. ; Jacquet, J. ; De Gaudemaris, D. ; Landreau, J. ; Plais, A. ; Vuong, A. ; Sillard, H. ; Fillion, T. ; Durand, O. ; Krol, H. ; Accard, A. ; Riant, I.
Author_Institution :
Alcatel Res. & Innovation, Marcoussis, France
Abstract :
We demonstrate an easy and efficient step tunable sampled fiber Bragg grating (SFBG) external cavity laser. A small current variation applied to a single electrode induces a step tuning of 15 nm based on the Vernier effect between an SFBG with a comb-like reflectivity and a two-section semiconductor laser diode. Thanks to the low current variation of less than 3 mA in the phase section, the output power remains constant within 0.6 dB at 6 dBm. The side-mode suppression ratio is greater than 40 dB over the whole tuning range.
Keywords :
Bragg gratings; electrodes; laser cavity resonators; laser modes; laser tuning; optical communication equipment; reflectivity; semiconductor lasers; 3 mA; Vernier effect; comb like reflectivity; digital wavelength selection; low current variation; output power; sampled fiber Bragg grating; side-mode suppression ratio; single electrode; step tunable sampled fiber Bragg grating external cavity laser; two-section semiconductor laser diode; whole tuning range; widely vernier tunable external cavity laser; Bragg gratings; Costs; Electrodes; Fiber lasers; Laser modes; Laser tuning; Power generation; Reflectivity; Semiconductor lasers; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.815363
