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Beam characterization for single-mode fiber coupling of tapered lasers
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Tapered lasers show a high market potential for industrial applications. However, for many applications it is necessary to transport the beam using single-mode fibers. As tapered lasers feature a…
Highly reliable silicon carbide photodiodes for visible-blind ultraviolet detector applications
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A growing variety of applications for detectors of UV radiation depend on highly reliable and long-term stable detection systems. In a joint project of FBH, IKZ, and sglux highly efficient and…
Reduced dynamic on-state resistance for GaN power transistors
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GaN-based high-voltage switching transistors enable particularly efficient power converters. Due to lower losses per switching cycle, GaN-based converters can operate at higher frequencies than…
Hochleistungslaserdioden aus Berlin auf der MST-Sommeruni
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For five days, the summer school of the Centre for Microsystems Technology (ZEMI) in Berlin offers trends and current developments from microsystems technology and optoelectronics. Also involved is…
FBH publication chosen for IOP select and labtalk
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A publication of P. Crump and further autors from the FBH has been selected for IOP Select and labtalk. The special collection contains journal articles, chosen by IOP editors according to criteria…
Flexible and Efficient Microwave Power Amplifier for Future Mobile Base Stations
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At FBH a GaN-based H-bridge class-D PA for the 900 MHz band has been developed. The demonstrator achieved a maximum efficiency of 50% and a saturated output power of 8 W.
Powerful brilliant light sources: Truncated-tapered semiconductor optical amplifiers improve MOPA system performance
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An ideal diode laser would deliver high output power in a diffraction limited beam, with all emission contained within a narrow, stable spectral window. Each improvement in this regard enables new…
FBH awarded for the fourth time for its family friendliness
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The FBH has again been awarded with the first prize for its family-friendly measures by the district Treptow-Köpenick. District Mayor Oliver Igel bestowed the award in the category "over…
Flip-chip mounted UV-B LEDs with optical powers in the milliwatt range
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The application fields of ultraviolet (UV) emitters in the UV-B range are manifold: ranging from material processing to medical applications. After successful optimization of the fabrication…
Präzise Diagnose im Blaulicht
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Laser have made their way in medicine: they remove unwelcome hair as well as moles, and are used for curing of dental fillings. Soon, collimated light will also help in medical diagnostics: by means…