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Red-emitting diode lasers with internal surface DBR gratings
/forschung/publikationen/red-emitting-diode-lasers-with-internal-surface-dbr-gratings
Red-emitting diode lasers currently do not offer a small spectral linewidth, which is required in a variety of applications like spectroscopy, interferometry and holography. We will present details…
Thermo-optical simulation of high-power diode lasers
/forschung/publikationen/thermo-optical-simulation-of-high-power-diode-lasers
Numerical simulations are an important tool for the design of opto-electronical components and devices. In order to obtain realistic results, a multitude of physical effects and theories have to be…
All-semiconductor based, narrow linewidth, high power laser system for laser communication applications in space at 1060nm
/forschung/publikationen/all-semiconductor-based-narrow-linewidth-high-power-laser-system-for-laser-communication-applications-in-space-at-1060nm
We demonstrate environmental test results of a compact high-power master oscillator (MO) power amplifier (PA) laser module emitting near 1064 nm. The module is micro-integrated on a footprint of…
Continuously current-tunable, narrow line-width miniaturized external cavity diode laser at 633 nm
/forschung/publikationen/continuously-current-tunable-narrow-line-width-miniaturized-external-cavity-diode-laser-at-633nbspnm
Red emitting diode lasers with a narrow spectral line-width and continuous tuning are requested as light sources for interferometric measurements with nm-accuracy. Tuning ranges of about 25 GHz…
Generation of picosecond pulses and optical frequency combs with multi-section 1065nm ridge waveguide diode lasers
/forschung/publikationen/generation-of-picosecond-pulses-and-optical-frequency-combs-with-multi-section-1065nm-ridge-waveguide-diode-lasers
Mode-locked diode lasers generate reliably picosecond or even sub-picosecond optical pulses. Especially, colliding pulse mode-locked (CPM) lasers are promising sources for the generation of short…
100,000 h estimated lifetime of 100-µm-stripe width 650 nm broad area lasers at an output power of 1.2 W
/forschung/publikationen/100000nbsph-estimated-lifetime-of-100-um-stripe-width-650nbspnm-broad-area-lasers-at-an-output-power-of-12nbspw
Compared to longer wavelength devices, the development of reliable red-emitting diode lasers is more challenging due to the applicable semiconductors and the limited stability of the laser facets.…
Short pulse generation by Q-switching two section tapered lasers
/forschung/publikationen/short-pulse-generation-by-q-switching-two-section-tapered-lasers
High power two-section tapered lasers are promising candidates to generate short optical pulses by Q-switching. The main advantage of these devices is that high peak optical power can be generated by…
High luminance tapered diode lasers for flying-spot display applications
/forschung/publikationen/high-luminance-tapered-diode-lasers-for-flying-spot-display-applications
Flying-spot display applications require high luminance (> 100 TCd/m²) red-emitting lasers. High luminance is defined as a high optical output power and a nearly diffraction limited beam quality…
An 8W GaN-Based H-Bridge Class-D PA for the 900 MHz Band Enabling Ternary Coding
/forschung/publikationen/an-8w-gan-based-h-bridge-class-d-pa-for-the-900nbspmhz-band-enabling-ternary-coding
This paper presents an H-bridge class-D power amplifier (PA) for the 900 MHz band based on GaN MMICs. For a classical BPDS modulated signal, a maximum output power of 34.5 dBm with a drain…
Prediction of Single-Mode Fiber Coupling Efficiencies of a Tapered Diode Laser From Measured Wigner Distribution Functions
/forschung/publikationen/prediction-of-single-mode-fiber-coupling-efficiencies-of-a-tapered-diode-laser-from-measured-wigner-distribution-functions
In this letter, we demonstrate how the coupling efficiency of a tapered diode laser (TPL) into a single-mode fiber under specified conditions can be predicted from measured Wigner distribution…