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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Bibliographic Details
Published in:IEEE photonics technology letters 2008-10, Vol.20 (19), p.1648-1650
Main Authors: Hasler, K.-H., Sumpf, B., Adamiec, P., Bugge, F., Fricke, J., Ressel, P., Wenzel, H., Erbert, G., Trankle, G.
Format: Article
Language:English
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.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.2002744