High-Power Pulse Generation in GHz Range With 1064-nm DBR Tapered Laser

• Published in: IEEE photonics technology letters Vol. 22; no. 11; pp. 832 - 834
• Main Authors: Klehr, Andreas, Sumpf, Bernd, Hasler, Karl-Heinz, Fricke, Jörg, Liero, Armin, Erbert, Götz
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Conferences; Diffraction gratings; Distributed Bragg reflector (DBR) laser; Distributed Bragg reflectors; Fiber optics; gigahertz (GHz) modulation; Gratings; Gratings (spectra); high-power optical pulse generation; Lasers; Optical fibers; Optical pulse generation; Optical pulses; Optical surface waves; Optical waveguides; Pulse generation; semiconductor laser; Spectra; Surface emitting lasers; Surface waves; tapered distributed Bragg reflector (DBR) laser; Waveguide lasers
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2010.2046153

For high-power pulse generation at 1060-nm, distributed Bragg reflector tapered lasers were investigated. The lasers consist of a tapered section, a ridge waveguide (RW) absorber section and a passive grating section with a sixth-order surface grating. For the generation of short optical pulses, the tapered section was biased with a dc-current and the RW absorber section was modulated with a 1-GHz sinusoidal current. At a repetition rate of 1 GHz-6.3 W optical pulses with 74-ps full-width at half-maximum and a small spectral widths of 50 pm were generated.