Title :
Generation of 2.5-ps light pulses with 15-nm wavelength tunability at 1.3 mu m by a self-seeded gain-switched semiconductor laser
Author :
Schell, M. ; Huhse, D. ; Bimberg, D.
Author_Institution :
Inst. fur Festkorperphys., Tech. Univ. Berlin, Germany
Abstract :
The generation of 2.5-ps pulses by a Fabry-Perot semiconductor laser with 15-nm wavelength tunability is demonstrated. A commercial laser is switched to single longitudinal mode pulse emission by self-seeding, using an external grating. The sidemode suppression ratio is better than 15 dB, with a peak value of 21 dB. The linearly red chirped pulses are compressed from 21-30 ps to 2.5-3.5 ps in a dispersion-shifted fiber. The simple experimental setup consists of a fiber coupler, a grating, and the dispersion-shifted fiber.<>
Keywords :
Q-switching; diffraction gratings; high-speed optical techniques; laser mode locking; laser tuning; optical fibres; semiconductor lasers; 1.3 micron; 15-nm wavelength tunability; 2.5 to 3.5 ps; 21 to 30 ps; Fabry-Perot semiconductor laser; commercial laser; dispersion-shifted fiber; external grating; fiber coupler; grating; light pulse generation; linearly red chirped pulses; peak value; self-seeded gain-switched semiconductor laser; sidemode suppression ratio; single longitudinal mode pulse emission; Chirp; Fabry-Perot; Fiber lasers; Gratings; Laser modes; Optical fiber couplers; Optical pulse generation; Optical pulses; Pulse generation; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
