5-W DBR Tapered Lasers Emitting at 1060 nm With a Narrow Spectral Linewidth and a Nearly Diffraction-Limited Beam Quality

Distributed Bragg reflector tapered lasers emitting at a wavelength of about 1060 nm were realized. The expitaxial layer structure leads to a vertical far-field angle of 15 deg (full-width at half-maximum). The devices with a total length of 4 mm consist of 2-mm-long ridge waveguide and tapered sect...

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Published inIEEE photonics technology letters Vol. 20; no. 19; pp. 1648 - 1650
Main Authors Hasler, K.-H., Sumpf, B., Adamiec, P., Bugge, F., Fricke, J., Ressel, P., Wenzel, H., Erbert, G., Trankle, G.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Beams (radiation)
Bragg reflectors
Diffraction
Distributed Bragg reflector (DBR) lasers
Distributed Bragg reflectors
Distributed feedback devices
Emittance
Laser beams
Lasers
near infrared lasers
Power generation
Power lasers
Pump lasers
Ridges
Semiconductor lasers
Spectral emittance
Spectral lines
Surface emitting lasers
tapered lasers
Waveguide lasers
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Summary:Distributed Bragg reflector tapered lasers emitting at a wavelength of about 1060 nm were realized. The expitaxial layer structure leads to a vertical far-field angle of 15 deg (full-width at half-maximum). The devices with a total length of 4 mm consist of 2-mm-long ridge waveguide and tapered sections. The input currents to both sections can be independently controlled. The laser reached 5-W output power with a narrow spectral linewidth below 40 pm (95% power) and a nearly diffraction-limited beam quality.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.2002744