Title :
Analysis, fabrication, and characterization of tunable DFB lasers with chirped gratings
Author :
Chen, Nong ; Nakano, Yoshiaki ; Okamoto, Kazuya ; Tada, Kunio ; Morthier, Geert I. ; Baets, Roel G.
Author_Institution :
Corp. Res. & Dev. Lab., Pioneer Electron. Corp., Saitama, Japan
fDate :
4/1/1997 12:00:00 AM
Abstract :
Describes the analysis, fabrication, and characterization of chirped grating tunable distributed-feedback (CGT DFB) semiconductor lasers. Both theoretical and experimental results show that the wavelength tunability of DFB lasers can be enhanced by introducing a pitch-chirped grating structure. The tuning mechanism is also theoretically demonstrated. The proposed CGT DFB laser will be useful in optical systems using wavelength division multiplexed (WDM) networks and other applications, due to its broader continuous tunability and very easy fabrication
Keywords :
chirp modulation; diffraction gratings; distributed feedback lasers; laser tuning; optical communication equipment; optical fabrication; semiconductor lasers; wavelength division multiplexing; AlGaAs-GaAs; CGT DFB semiconductor lasers; WDM; analysis; broader continuous tunability; characterization; chirped gratings; fabrication; optical systems; pitch-chirped grating structure; tunable DFB lasers; tunable distributed-feedback semiconductor lasers; tuning mechanism; two electrode AlGaAs-GaAs laser; very easy fabrication; wavelength division multiplexed networks; wavelength tunability; Chirp; Gratings; Laser theory; Laser tuning; Optical device fabrication; Optical fiber networks; Optical tuning; Semiconductor lasers; Tunable circuits and devices; Wavelength division multiplexing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.605705
