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Browsing by Author "WENZEL, Hans"

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Feedback Sensitivity of Detuned DBR Semiconductor Lasers

TRONCIU, Vasile; WERNER, Nils; WENZEL, Hans; WÜNSCHE, Hans-Jürgen (IEEE, 2021)

A distributed Bragg reflector (DBR) laser represents a simple realization of a semiconductor laser operating in a single longitudinal mode. We present a so far missing theoretical study how its reflection tolerance depends ...
Improving the spectral performance of extended cavity diode lasers using angled-facet laser diode chips

KRÜGER, Mandy; TRONCIU, Vasile Z.; BAWAMIA, Ahmad; KÜRBIS, Christian; RADZIUNAS, Mindaugas; WENZEL, Hans; WICHT, Andreas; PETERS, Achim; TRÄNKLE, Günther (Springer Nature Switzerland, 2019)

We present and compare theoretical and experimental results on the electro-optical performance of extended cavity diode lasers (ECDLs) that employ two ridge waveguide designs for the single-transverse mode GaAs laser diode ...
The influence of a residual reflectivity at the front facet of a multisection master-oscillator power-amplifier

GRIGORIEV, Eugeniu; TRONCIU, Vasile; WERNER, Nils; WENZEL, Hans (Technical University of Moldova, 2022)

This paper reports on the theoretical end experimental investigation of the output characteristics of a multisection master-oscillator power-amplifier (MOPA). It consists of a master oscillator (MO) composed by a gain ...
Investigation of picosecond-pulse generation by two-section blue-violet semiconductor lasers

TRONCIU, Vasile; WENZEL, Hans; KNIGGE, Andrea (Tehnica UTM, 2019)

In this paper, we focus on the generation of ps pulses in a blue-violet InGaN laser containing an additional section (called switching section) with a saturable absorber in axial direction. The main aim of this study is ...
Investigation of red-emitting distributed Bragg reflector lasers by means of numerical simulations

TRONCIU, Vasile Z.; WENZEL, Hans; RADZIUNAS, Mindaugas; REGGENTIN, Matthias; WIEDMANN, Jörg; KNIGGE, Andrea (The Institution of Engineering and Technology, 2018)

The authors report theoretical and experimental results on the properties of distributed Bragg reflector semiconductor lasers. Using the traveling wave equation model, they show that a proper choice of coupling coefficient ...
Mode transitions in distributed-feedback tapered master-oscillator power-amplifier: theory and experiments

RADZIUNAS, Mindaugas; TRONCIU, Vasile Z.; BANDELOW, Uwe; LICHTNER, Mark; SPREEMANN, Martin; WENZEL, Hans (Springer Nature Switzerland, 2008)

Theoretical and experimental investigations have been carried out to study the spectral and spatial behavior of monolithically integrated distributed-feedback tapered master-oscillators power-amplifiers emitting around 973 ...
Study of Microintegrated External-Cavity Diode Lasers: Simulations, Analysis, and Experiments

RADZIUNAS, Mindaugas; TRONCIU, Vasile Z.; LUVSANDAMDIN, Erdenetsetseg; KÜRBIS, Christian; WICHT, Andreas; WENZEL, Hans (IEEE, 2015)

This paper reports the results of numerical and experimental investigations of the dynamics of an external-cavity diode laser device composed of a semiconductor laser and an external Bragg grating, which provides optical ...

Browsing by Author "WENZEL, Hans"

Browsing by Author "WENZEL, Hans"

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