Dr. Dimitri Geskus Profile

Dr. Dimitri Geskus

at Chilas

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 11 March 2024 Presentation + Paper

High-power 150 mW extended cavity Si3N4 tunable narrow-linewidth laser

Albert van Rees, Wilson Tsong, Ian van den Vlekkert, Fathema Farjana, Rob E. Lammerink, Ilka Visscher, Chris G. Roeloffzen, Sami Musa, Dimitri Geskus

Proceedings Volume 12892, 128920J (2024) https://doi.org/10.1117/12.3003689

KEYWORDS: Laser frequency, Tunable lasers, Laser resonators, Waveguides, Silicon, Semiconductor lasers, Photonic integrated circuits, High power lasers, Reflection, Silicon nitride

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Proceedings Article | 17 March 2023 Presentation + Paper

>20 dB phase noise reduction by locking an off-the-shelf external cavity laser having sub-kHz linewidth to an on-chip wavelength reference in Si3N4 using an electronic feedback loop on the diode injection current

Dimitri Geskus, Tommie F. Verouden, Wilson Tsong, Arjan Meijerink, Ian van den Vlekkert, Sami Musa

Proceedings Volume 12425, 124250F (2023) https://doi.org/10.1117/12.2668707

KEYWORDS: Laser stabilization, Semiconductor lasers, Modulation, Feedback loops, Diodes, Laser frequency, Denoising, Photonic integrated circuits, Electronic circuits, Tunable lasers

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Proceedings Article | 17 March 2023 Presentation + Paper

139 nm tuning range, high speed wavelength modulation, and high output power up to 60 mW from a single gain, two-ring vernier external cavity laser

Wilson Tsong, Ian van den Vlekkert, Sami Musa, Raimond Frentrop, Noor Schilder, Marcel Hoekman, Arjan Meijerink, Edwin Klein, Dimitri Geskus

Proceedings Volume 12424, 124240G (2023) https://doi.org/10.1117/12.2650624

KEYWORDS: Modulation, Laser frequency, Tunable lasers, Modulation frequency, Mirrors, Frequency modulation, Thermal effects, Semiconductor lasers, Waveguides, Photonic integrated circuits

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Proceedings Article | 5 March 2021 Presentation

Narrow-linewidth hybrid-integrated semiconductor lasers by exploiting feedback from Si3N4 circuits

Albert van Rees, Youwen Fan, Jesse Mak, Rob E. Lammerink, Cornelis A. Franken, Ruud Oldenbeuving, Dimitri Geskus, Jörn Epping, Marcel Hoekman, Ronald Dekker, Edwin Klein, Douwe Geuzebroek, Chris G. Roeloffzen, Carsten Fallnich, Peter J. van der Slot, Klaus-Jochen Boller

Proceedings Volume 11692, 1169209 (2021) https://doi.org/10.1117/12.2583821

KEYWORDS: Semiconductor lasers, Resonators, Laser development, Waveguides, Tunable filters, Semiconductor optical amplifiers, Photonic integrated circuits, Optical filters, Optical communications, Microwave photonics

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Proceedings Article | 5 March 2021 Presentation + Paper

First demonstration of a hybrid integrated InP-Si3N4 diode laser for broadband optical frequency comb generation

H. M. J. Bastiaens, G. Neijts, A. Memon, Y. Fan, J. Mak, D. Geskus, M. Hoekman, V. Moskalenko, E. A. J. M. Bente, K.-J. Boller

Proceedings Volume 11705, 1170508 (2021) https://doi.org/10.1117/12.2593818

KEYWORDS: Semiconductor lasers, Frequency combs, Laser optics, Integrated optics, Resonators, Optical communications, Optical amplifiers, Mode locking, Light sources, Laser stabilization

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Proceedings Article | 9 March 2020 Presentation

First realization of a hybrid integrated diode laser in the visible spectral range (Conference Presentation)

Kees Franken, Albert van Rees, Youwen Fan, Dimitri Geskus, Ronald Dekker, Douwe Geuzebroek, Carsten Fallnich, Peter van der Slot, Klaus-Jochen Boller

Proceedings Volume 11301, 1130106 (2020) https://doi.org/10.1117/12.2565028

KEYWORDS: Semiconductor lasers, Visible radiation, Waveguides, Tunable diode lasers, Biomedical optics, Metrology, Flow cytometry, Atomic clocks, Optical components, Control systems

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Proceedings Article | 2 March 2020 Presentation + Paper

Hybrid integrated silicon nitride lasers

Jörn Epping, Arne Leinse, Ruud Oldenbeuving, Ilka Visscher, Douwe Geuzebroek, Dimitri Geskus, Albert van Rees, Klaus Boller, Michael Theurer, Martin Möhrle, Martin Schell, Chris G. Roeloffzen, René Heideman

Proceedings Volume 11274, 112741L (2020) https://doi.org/10.1117/12.2552264

KEYWORDS: Resonators, Silicon, Semiconductor lasers, Integrated optics, Waveguides, Mirrors, Signal to noise ratio, Optical filters, Laser resonators, Hybrid silicon lasers

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Proceedings Article | 19 April 2019 Presentation + Paper

Hybrid interconnection of InP and TriPleX photonic integrated circuits for new module functionality

A. Leinse, K. Wörhoff, I. Visscher, A. Alippi, C. Taddei, R. Dekker, D. Geskus, R. Oldenbeuving, D. Geuzebroek, C. G. Roeloffzen

Proceedings Volume 10924, 109240B (2019) https://doi.org/10.1117/12.2513599

KEYWORDS: Waveguides, Silicon, Photonic integrated circuits, Modulators, Phased arrays, Sensors, Low pressure chemical vapor deposition, Advanced distributed simulations, Optical filters, Interfaces

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Proceedings Article | 17 May 2018 Paper

Temperature dependence of spectral characteristics of distributed feedback resonators

C. Kores, N. Ismail, D. Geskus, M. Dijkstra, E. Bernhardi, M. Pollnau

Proceedings Volume 10683, 106830B (2018) https://doi.org/10.1117/12.2307023

KEYWORDS: Waveguides, Aluminum, Resonators, Silicon, Bragg gratings, Refractive index

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Proceedings Article | 20 February 2017 Presentation + Paper

The linewidth of distributed feedback resonators: the combined effect of thermally induced chirp and gain narrowing

Cristine C. Kores, Dimitri Geskus, Nur Ismail, Meindert Dijkstra, Edward Bernhardi, Markus Pollnau

Proceedings Volume 10090, 1009014 (2017) https://doi.org/10.1117/12.2252739

KEYWORDS: Laser resonators, Resonators, Thermal effects, Channel waveguides, Refractive index, Phase shifts, Photons, Absorption, Waveguides, Reflectivity

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Proceedings Article | 20 February 2017 Presentation + Paper

Mode profiles and Airy distributions of Fabry-Pérot resonators with frequency-dependent mirror reflectivity

Nur Ismail, Cristine Calil Kores, Dimitri Geskus, Markus Pollnau

Proceedings Volume 10090, 1009011 (2017) https://doi.org/10.1117/12.2252740

KEYWORDS: Resonators, Mirrors, Reflectivity, Resonance enhancement, Solids, Terahertz radiation, Phase shifts, Light sources, Physics, Communication and information technologies

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Proceedings Article | 27 February 2015 Paper

Diode side pumped, quasi-CW Nd:YVO4 self-Raman laser operating at 1176 nm

Cristine Calil Kores, Dimitri Geskus, Helen Margaret Pask, Niklaus Ursus Wetter

Proceedings Volume 9347, 934718 (2015) https://doi.org/10.1117/12.2077976

KEYWORDS: Raman spectroscopy, Crystals, Semiconductor lasers, Neodymium lasers, Laser applications, Laser crystals, Diodes, Modes of laser operation, Continuous wave operation, Pulsed laser operation

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Proceedings Article | 27 February 2015 Paper

Ten deep blue to cyan emission lines from an intracavity frequency converted Raman laser

Dimitri Geskus, Jonas Jakutis-Neto, Helen Pask, Niklaus Wetter

Proceedings Volume 9347, 934708 (2015) https://doi.org/10.1117/12.2077790

KEYWORDS: Raman spectroscopy, Crystals, Laser crystals, Continuous wave operation, Second-harmonic generation, Neodymium lasers, Mirrors, Visible radiation, Semiconductor lasers, Nonlinear crystals

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Proceedings Article | 1 May 2008 Paper

Optimization of Al2O3:Er3+ waveguide technology for active integrated optical devices

Kerstin Wörhoff, Jonathan Bradley, Feridun Ay, Dimitri Geskus, Tom Blauwendraat, Markus Pollnau

Proceedings Volume 6996, 699618 (2008) https://doi.org/10.1117/12.781066

KEYWORDS: Waveguides, Erbium, Sputter deposition, Absorption, Channel waveguides, Integrated optics, Thin films, Optical amplifiers, Planar waveguides, Refractive index

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Showing 5 of 14 publications

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