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Investigations for real-time Raman measurements in the deep-ocean by applying a 1.5 W BA DFB diode laser and long optical fibers
/forschung/publikationen/investigations-for-real-time-raman-measurements-in-the-deep-ocean-by-applying-a-15-w-ba-dfb-diode-laser-and-long-optical-fibers
Raman spectroscopy is a powerful tool to obtain "fingerprint" spectra from substances in numerous applications. In-situ and/or real time measurements are interesting for the detection of…
High-Power Pulse Generation in GHz Range With 1064-nm DBR Tapered Laser
/forschung/publikationen/high-power-pulse-generation-in-ghz-range-with-1064-nm-dbr-tapered-laser
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…
200 mW at 488 nm From a ppMgO:LN Ridge Waveguide by Frequency Doubling of a Laser Diode Module
/forschung/publikationen/200-mw-at-488-nm-from-a-ppmgoln-ridge-waveguide-by-frequency-doubling-of-a-laser-diode-module
We report on second-harmonic generation in a single-pass bench top configuration using a MgO-doped periodically poled LiNbO3 ridge waveguide (RW) and a hybrid integrated master oscillator power…
High Power 1060 nm Ridge Waveguide Lasers with Low-Index Quantum Barriers for Narrow Divergence Angle
/forschung/publikationen/high-power-1060-nm-ridge-waveguide-lasers-with-low-index-quantum-barriers-for-narrow-divergence-angle
Combining low-index quantum-barriers with thick (8.6 µm) waveguide in a multi-QW 1060-nm epi-structure enabled a vertical divergence of <9°. 30 W broad-area and 0.8 W…
1.38 W Tunable High-Power Narrow-Linewidth External-Cavity Tapered Amplifier at 670 nm
/forschung/publikationen/138-w-tunable-high-power-narrow-linewidth-external-cavity-tapered-amplifier-at-670nbspnm
A diffraction-limited narrow-linewidth diode laser system based on a tapered amplifier in external cavity is demonstrated. 1.38 W output power is obtained. The laser system is tunable from 659…
First SESAM-modelocked Yb:KGW femtosecond oscillator operating at 1 GHz repetition rate
/forschung/publikationen/first-sesam-modelocked-ybkgw-femtosecond-oscillator-operating-at-1-ghz-repetition-rate
We present the first femtosecond SESAM-modelocked Yb:KGW laser operating at 1 GHz repetition rate. We generated 120 mW output power in 317-fs pulses at 1.7-W pump power from a…
Second Harmonic Generation of Picosecond Pulses at 530 nm in Bulk PPLN at Variable Repetition Rates
/forschung/publikationen/second-harmonic-generation-of-picosecond-pulses-at-530nbspnm-in-bulk-ppln-at-variable-repetition-rates
Green picosecond pulses with peak powers of more than 4W are generated by second harmonic generation in bulk PPLN. These power levels exceed all previous electrically triggerable green picosecond…
Narrow Linewidth DBR-RWLasers emitting near 1064 nm
/forschung/publikationen/narrow-linewidth-dbr-rwlasers-emitting-near-1064nbspnm
We report on the realization of narrow linewidth high power distributed bragg reflector (DBR) lasers. For devices with a front facet reflectivity Rf = 30% we obtain a minmum intrinsic linewidth of…
Sub-50 fs Diode-Pumped Yb:YCOB Laser
/forschung/publikationen/sub-50nbspfs-diode-pumped-ybycob-laser
Passive mode locking of the self-frequency doubling Yb:Ca4YO(BO3)3 pumped by a two-section distributed Bragg-reflector tapered-diode-laser is demonstrated. Pulses as short as 49 fs at…
11W Broad Area 976nm DFB Lasers with 58% Efficiency
/forschung/publikationen/11w-broad-area-976nm-dfb-lasers-with-58-efficiency
Optimized 976nm DFB lasers have peak power conversion efficiency of 58%, peak power of 11W, linewidth of ~ 0.4nm and vertical far-field FWHM 28°. A comparison with Fabry-Pérot lasers to the same…