Title :
L-Band Wavelength-Tunable MQW Fabry–Pérot Laser Using a Three-Segment Structure
Author :
Ke Liu ; Si Xuan Mu ; Yu Lu ; Bao Lu Guan ; Pun, E.Y.B.
Author_Institution :
Key Lab. of Optoelectron. Technol., Beijing Univ. of Technol., Beijing, China
Abstract :
A three-segment structure L-band wavelength tunable multi-quantum-well Fabry-Pérot (FP) laser is realized and characterized. Wavelength-tuning is achieved by current injection into the unpumped segments. Depending on the pumping schemes, the lasing wavelength undergoes either red or blue shift. Red-shifting of the lasing wavelength is caused by band-gap shrinkage effect because of Joule heating. Blue-shifting of the lasing wavelength is mainly caused by band-gap filling effect. At room temperature, a tuning range of ~12.8 nm is obtained. The tunable FP laser diode with simple architecture has potential applications in L-band optical communication systems.
Keywords :
heating; laser tuning; optical pumping; quantum well lasers; red shift; Fabry-Perot laser; Joule heating; L-band wavelength laser; band gap filling effect; band gap shrinkage effect; blue shift; current injection; lasing wavelength; multiquantum well laser; optical communication system; red shift; temperature 293 K to 298 K; three segment structured laser; tunable laser; unpumped segment; wavelength tuning; Laser excitation; Laser tuning; Photonic band gap; Pump lasers; Waveguide lasers; Fabry–Pérot laser; band-gap filling; band-gap shrinkage; optical waveguide; wavelength-tunable;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2273367
