Dr. Pietro Della Casa Profile

Dr. Pietro Della Casa

R&D Engineer at Ferdinand-Braun-Institut gGmbH

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Author

Publications (15)

Proceedings Article | 13 March 2024 Presentation

Passively mode-locked monolithic diode lasers with a tapered gain section generating picosecond pulses with 45 W peak power at 780 nm

S. Wohlfeil, H. Christopher, J. Fricke, P. Della Casa, A. Maaßdorf, H. Wenzel, A. Knigge

Proceedings Volume 12867, 128670T (2024) https://doi.org/10.1117/12.3002428

KEYWORDS: Mode locking, Semiconductor lasers, Picosecond phenomena, Ultrafast phenomena, Two photon polymerization, Terahertz spectroscopy, Waveguides, Tunable filters, Spectroscopy, Sapphire lasers

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Proceedings Article | 12 March 2024 Presentation + Paper

Ultra-wide-aperture diode lasers with high brightness through use of buried periodic current structuring

B. King, S. Arslan, P. Della Casa, D. Martin, A. Boni, P. S. Basler, A. Thies, A. Knigge, P. Crump

Proceedings Volume 12867, 128670S (2024) https://doi.org/10.1117/12.3005647

KEYWORDS: Semiconductor lasers, Continuous wave operation, Measurement devices, Near field, Beam quality measurement, Materials processing, Laser applications, Emission wavelengths, Reflectivity, Optical fibers

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Proceedings Article | 12 March 2024 Presentation + Paper

Distributed Bragg reflector tapered diode lasers emitting reliably more than 7 W at 1180 nm

D. Feise, O. Senel, H. Wenzel, P. Della Casa, R.-St. Unger, J. Glaab, K. Paschke

Proceedings Volume 12867, 128670K (2024) https://doi.org/10.1117/12.2692352

KEYWORDS: Semiconductor lasers, Quantum wells, Second harmonic generation, Distributed Bragg reflectors, Waveguides, Reliability, Optical resonators, Semiconducting wafers, Beam quality measurement, Spectral resolution, High power diode lasers

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Proceedings Article | 14 March 2023 Presentation + Paper

Buried-regrown-implant-structure diode lasers with ultra-thick epitaxy for resistance to mounting stress without loss in efficiency

B. King, S. Arslan, A. Boni, P. Della Casa, D. Martin, A. Thies, A. Knigge, P. Crump

Proceedings Volume 12403, 124030J (2023) https://doi.org/10.1117/12.2647096

KEYWORDS: Semiconductor lasers, Epitaxy, Resistance, Continuous wave operation, Near field optics, Near field, Laser damage threshold, Laser applications, Heatsinks, Broad area laser diodes

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Proceedings Article | 14 March 2023 Presentation + Paper

9W tapered laser diodes with high beam quality at 760nm

C. Mourikis, D. Feise, H. Wenzel, P. Della Casa, K. Paschke, G. Tränkle

Proceedings Volume 12403, 124030G (2023) https://doi.org/10.1117/12.2648712

KEYWORDS: Semiconductor lasers, Waveguides, Electro optics, Quantum wells, Quantum emitters, Laser development, Gallium arsenide, Beam divergence

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Proceedings Article | 14 March 2023 Presentation + Paper

Tailored in-plane thermal profiles for narrower lateral far-field in kilowatt-class 9xx nm diode laser bars

Md. Jarez Miah, Matthias Karow, Mohamed Elattar, Dominik Martin, Pietro Della Casa, Stefan Grützner, Stephan Strohmaier, Andrea Knigge, Paul Crump, Günther Tränkle

Proceedings Volume 12403, 124030I (2023) https://doi.org/10.1117/12.2648355

KEYWORDS: Design and modelling, Semiconductor lasers, Beam divergence, Resistance, Laser bars, Temperature distribution, Fabrication, Laser resonators, High power lasers, Thermal lensing

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Proceedings Article | 4 March 2022 Presentation + Paper

Kilowatt-class, 1-cm diode laser bars at 910-940 nm with improved power, conversion efficiency, and beam quality

Md. Jarez Miah, Anisuzzaman Boni, Dominik Martin, Andrea Knigge, Pietro Della Casa, Paul Crump

Proceedings Volume 11983, 1198304 (2022) https://doi.org/10.1117/12.2609831

KEYWORDS: Semiconductor lasers

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Proceedings Article | 4 March 2022 Presentation + Paper

Progress in experimental studies into the beam parameter product of GaAs-based high-power diode lasers

Paul Crump, Mohamed Elattar, Md. Jarez Miah, Michael Ekterai, Matthias Karow, Dominik Martin, Pietro Della Casa, Andre Maaßdorf, Stewart McDougall, Carlo Holly, Simon Rauch, Stefan Gruetzner, Stephan Strohmaier, Andrea Knigge, Günther Tränkle

Proceedings Volume 11983, 1198307 (2022) https://doi.org/10.1117/12.2610277

KEYWORDS: Semiconductor lasers, High power lasers, Temperature metrology, Continuous wave operation, Near field, Optical testing, Near field optics, Thermography

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Proceedings Article | 5 March 2021 Presentation + Paper

Epitaxial design progress for high power, efficiency, and brightness in 970 nm broad area lasers

A. Boni, S. Arslan, G. Erbert, P. Della Casa, D. Martin, P. Crump

Proceedings Volume 11668, 1166807 (2021) https://doi.org/10.1117/12.2578184

KEYWORDS: High power lasers, Laser development, Structural design, Resonators, Resistance, Optical resonators, Optical design, Lead, Laser resonators

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Proceedings Article | 5 March 2021 Presentation + Paper

Enhanced self-aligned structure for improved lateral brightness in 940 nm high-power broad-area diode lasers

M. Elattar, O. Brox, P. Della Casa, A. Maaßdorf, D. Martin, H. Wenzel, A. Knigge, P. Crump

Proceedings Volume 11705, 117050N (2021) https://doi.org/10.1117/12.2578190

KEYWORDS: Semiconductor lasers, High power lasers, Polarization, Process control, Laser applications, Ion implantation, Etching, Doping

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Proceedings Article | 2 March 2020 Paper

Design progress for higher efficiency and brightness in 1 kW diode-laser bars

M. Karow, D. Martin, P. Della Casa, G. Erbert, P. Crump

Proceedings Volume 11262, 1126205 (2020) https://doi.org/10.1117/12.2545918

KEYWORDS: Near field, Continuous wave operation, Semiconductor lasers, High power diode lasers, Beam quality measurement

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Proceedings Article | 12 March 2019 Paper

Current spreading suppression by O- and Si-implantation in high power broad area diode lasers

D. Martin, P. Della Casa, T. Adam, C. Goerke, A. Thies, K. Häusler, O. Brox, H. Wenzel, P. Crump, M. Weyers, A. Knigge

Proceedings Volume 10900, 109000M (2019) https://doi.org/10.1117/12.2509762

KEYWORDS: Near field, Semiconductor lasers, Silicon, Epitaxy, High power lasers, Resistance, Broad area laser diodes, Semiconducting wafers, High power diode lasers, Cladding

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Proceedings Article | 19 February 2018 Paper

5.5nm wavelength-tunable high-power MOPA diode laser system at 971 nm

Mahmoud Tawfieq, André Müller, Jörg Fricke, Pietro Della Casa, Peter Ressel, Arnim Ginolas, David Feise, Bernd Sumpf, Günther Tränkle

Proceedings Volume 10553, 105531F (2018) https://doi.org/10.1117/12.2289521

KEYWORDS: Wavelength tuning, Diffraction, Semiconductor lasers, Tunable lasers, Amplifiers, Quantum wells, High power lasers, Laser systems engineering, Optical amplifiers

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Proceedings Article | 19 February 2018 Paper

Reflectors and tuning elements for widely-tunable GaAs-based sampled grating DBR lasers

O. Brox, H. Wenzel, P. Della Case, M. Tawfieq, B. Sumpf, M. Weyers, A. Knigge

Proceedings Volume 10553, 1055310 (2018) https://doi.org/10.1117/12.2287413

KEYWORDS: Neodymium, Gallium arsenide, Reflectors, Quantum wells, Seaborgium, Wavelength tuning, Oxygen, Semiconductor lasers, Reflectivity, Cladding

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Proceedings Article | 3 April 2003 Paper

Fabrication by rf-sputtering processing of Er³⁺/Yb³⁺-codoped silica-titania planar waveguides

Alessandro Chiasera, Maurizio Montagna, Cristiana Tosello, Rogeria Goncalves, Luca Zampedri, Maurizio Ferrari, Massimo Brenci, Stefano Pelli, Giancarlo Righini, Massimo Bersani, Paolo Lazzeri, Pietro Della Casa

Proceedings Volume 4944, (2003) https://doi.org/10.1117/12.468304

KEYWORDS: Erbium, Ytterbium, Waveguides, Ions, Planar waveguides, Luminescence, Raman spectroscopy, Sputter deposition, Spectroscopy, Energy transfer

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Showing 5 of 15 publications

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