Mr. Christian Assmann Profile

Christian Assmann

at Sacher Lasertechnik GmbH

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Author

Publications (9)

Proceedings Article | 12 March 2024 Presentation + Paper

Design of an FPGA-based PID controller with high-bandwidth and auto-relocking features: application to Sub-kHz external cavity diode lasers

Hervé Tatenguem, Christian Aßmann, Sebastian Schmidtmann, Patricia Sacher, Martin Honsberg, Joachim Sacher

Proceedings Volume 12871, 1287108 (2024) https://doi.org/10.1117/12.3001465

KEYWORDS: Laser stabilization, Design, Field effect transistors, Control systems, Analog to digital converters, Semiconductor lasers, Field programmable gate arrays, Signal processing, Sampling rates

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Proceedings Article | 8 March 2023 Presentation + Paper

QEPAS spectroscopy with fully tunable IC-ECDL with high bandwidth for the MIR range

Hervé Tatenguem, Morten Hoppe, Christian Aßmann, Sebastian Schmidtmann, Martin Honsberg, Joachim Sacher

Proceedings Volume 12428, 124280W (2023) https://doi.org/10.1117/12.2650210

KEYWORDS: Field programmable gate arrays, Gases, Methane, Absorption, Spectroscopy, Semiconductor lasers, Reflection gratings, Prisms, Laser systems engineering, Laser resonators

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Proceedings Article | 5 March 2022 Presentation + Paper

Extremely fast tunable interband cascade laser with external cavity for the MIR region

Morten Hoppe, Christian Aßmann, Sebastian Schmidtmann, Martin Honsberg, Herve Tatenguem, Thomas Schanze, Joachim Sacher, ShanShan Gu-Stoppel

Proceedings Volume 12008, 1200801 (2022) https://doi.org/10.1117/12.2609462

KEYWORDS: Microelectromechanical systems, Scanners, Resonators, Waveguides, Semiconductor lasers, Quantum cascade lasers, Spectroscopy, Signal detection, Mirrors, Absorption

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Proceedings Article | 5 March 2022 Presentation + Paper

A dual gas QEPAS detector based on non-overlapping QTF resonance frequencies

Hervé Tatenguem, Morten Hoppe, Christian Assmann, Tobias Milde, Joachim Sacher

Proceedings Volume 12008, 120080O (2022) https://doi.org/10.1117/12.2609703

KEYWORDS: Sensors, Field programmable gate arrays, Semiconductor lasers, Gas lasers, Modulation, Carbon dioxide, Quartz, Amplifiers, Methane, NoResults

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Proceedings Article | 5 March 2021 Presentation + Paper

Compact detector unit based on the butterfly assembly for trace gas analysis

Tobias Milde, Morten Hoppe, Hervé Tatenguem, Sebastian Schmidtmann, Martin Honsberg, Christian Assmann, Wolfgang Schade, Joachim Sacher

Proceedings Volume 11697, 116970R (2021) https://doi.org/10.1117/12.2578935

KEYWORDS: Sensors, Data modeling, Quartz, Laser optics, Field programmable gate arrays, Carbon dioxide lasers, Atmospheric modeling, Semiconductor lasers, Safety, Product safety

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Proceedings Article | 5 March 2021 Presentation + Paper

Innovative ECDL design based on a resonant MEMS scanner for ultra-fast tuning in the MIR range

Morten Hoppe, Sebastian Schmidtmann, Christian Aβmann, Martin Honsberg, Herve Tatenguem, Tobias Milde, Thomas Schanze, Joachim Sacher, Shanshan Gu-Stoppel, Frank Senger

Proceedings Volume 11697, 1169709 (2021) https://doi.org/10.1117/12.2578913

KEYWORDS: Microelectromechanical systems, Ultrafast phenomena, Scanners, Actuators, Semiconductor lasers, Molecules, Gases, Absorption

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Proceedings Article | 24 February 2020 Paper

Realization of GaSb based DFB Lasers and Gain Chips for the 1.9 µm to 3 µm spectral regime for molecular spectroscopy

Martin Honsberg, Tobias Milde, Sebastian Schmidtmann, Christian Assmann, Morten Hoppe, Joachim Sacher

Proceedings Volume 11301, 113011C (2020) https://doi.org/10.1117/12.2546472

KEYWORDS: Semiconductor lasers, Gallium antimonide, Diodes, Semiconducting wafers, Absorption, Laser damage threshold, Carbon monoxide, Wavelength tuning, Gases, Mid-IR

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Proceedings Article | 1 March 2019 Presentation + Paper

Comparison of the spectral excitation behavior of methane according to InP, IC, and QC lasers as excitation source by QEPAS

Tobias Milde, Morten Hoppe, Herve Tatenguem, Christian Assmann, Wolfgang Schade, Joachim Sacher

Proceedings Volume 10917, 109171M (2019) https://doi.org/10.1117/12.2507180

KEYWORDS: Absorption, Methane, Quantum cascade lasers, Absorbance, Semiconductor lasers, Gallium antimonide, Sensors

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Proceedings Article | 22 February 2017 Presentation + Paper

Narrow-line diode laser packaging and integration in the NIR and MIR spectral range

Alvaro Jimenez, Tobias Milde, Niklas Staacke, Christian Assmann, James O'Gorman, Joachim Sacher

Proceedings Volume 10085, 1008505 (2017) https://doi.org/10.1117/12.2255635

KEYWORDS: Semiconductor lasers, Packaging, Tunable diode lasers, Near infrared, Spectroscopes, Laser development, Micro optics, New and emerging technologies, Near infrared spectroscopy, Laser packaging, Waveguides, Tunable lasers, Optical simulations, Cladding, Quantum wells, Absorption, Microelectromechanical systems

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Showing 5 of 9 publications

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