---
_id: '59895'
abstract:
- lang: eng
  text: The generation of optically broadband Nyquist pulse sequences using an integrated
    Mach-Zehnder modulator (MZM) in a thin-film lithium-niobate (TFLN) platform with
    repetition rates of 5 to 32 GHz and optical bandwidths of up to 160 GHz is demonstrated.
    Nyquist pulse sequences with high optical bandwidth can be used as synchronization
    and control signals in quantum sources based on photon pair generation.
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Martin Miroslavov
  full_name: Mihaylov, Martin Miroslavov
  id: '42449'
  last_name: Mihaylov
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kress C, Mihaylov MM, Schwabe T, Silberhorn C, Scheytt JC. Broadband Nyquist
    Pulse Generation on TFLN Platform for Integrated Quantum Source. In: <i>PIERS
    Proceedings </i>. PhotonIcs and Electromagnetics Research Symposium (PIERS). doi:<a
    href="https://doi.org/10.1109/PIERS-Spring66516.2025.11276835">https://doi.org/10.1109/PIERS-Spring66516.2025.11276835</a>'
  apa: Kress, C., Mihaylov, M. M., Schwabe, T., Silberhorn, C., &#38; Scheytt, J.
    C. (n.d.). Broadband Nyquist Pulse Generation on TFLN Platform for Integrated
    Quantum Source. <i>PIERS Proceedings </i>. PhotonIcs and Electromagnetics Research
    Symposium (PIERS), Abu Dhabi. <a href="https://doi.org/10.1109/PIERS-Spring66516.2025.11276835">https://doi.org/10.1109/PIERS-Spring66516.2025.11276835</a>
  bibtex: '@inproceedings{Kress_Mihaylov_Schwabe_Silberhorn_Scheytt, title={Broadband
    Nyquist Pulse Generation on TFLN Platform for Integrated Quantum Source}, DOI={<a
    href="https://doi.org/10.1109/PIERS-Spring66516.2025.11276835">https://doi.org/10.1109/PIERS-Spring66516.2025.11276835</a>},
    booktitle={PIERS Proceedings }, publisher={PhotonIcs and Electromagnetics Research
    Symposium (PIERS)}, author={Kress, Christian and Mihaylov, Martin Miroslavov and
    Schwabe, Tobias and Silberhorn, Christine and Scheytt, J. Christoph} }'
  chicago: Kress, Christian, Martin Miroslavov Mihaylov, Tobias Schwabe, Christine
    Silberhorn, and J. Christoph Scheytt. “Broadband Nyquist Pulse Generation on TFLN
    Platform for Integrated Quantum Source.” In <i>PIERS Proceedings </i>. PhotonIcs
    and Electromagnetics Research Symposium (PIERS), n.d. <a href="https://doi.org/10.1109/PIERS-Spring66516.2025.11276835">https://doi.org/10.1109/PIERS-Spring66516.2025.11276835</a>.
  ieee: 'C. Kress, M. M. Mihaylov, T. Schwabe, C. Silberhorn, and J. C. Scheytt, “Broadband
    Nyquist Pulse Generation on TFLN Platform for Integrated Quantum Source,” presented
    at the PhotonIcs and Electromagnetics Research Symposium (PIERS), Abu Dhabi, doi:
    <a href="https://doi.org/10.1109/PIERS-Spring66516.2025.11276835">https://doi.org/10.1109/PIERS-Spring66516.2025.11276835</a>.'
  mla: Kress, Christian, et al. “Broadband Nyquist Pulse Generation on TFLN Platform
    for Integrated Quantum Source.” <i>PIERS Proceedings </i>, PhotonIcs and Electromagnetics
    Research Symposium (PIERS), doi:<a href="https://doi.org/10.1109/PIERS-Spring66516.2025.11276835">https://doi.org/10.1109/PIERS-Spring66516.2025.11276835</a>.
  short: 'C. Kress, M.M. Mihaylov, T. Schwabe, C. Silberhorn, J.C. Scheytt, in: PIERS
    Proceedings , PhotonIcs and Electromagnetics Research Symposium (PIERS), n.d.'
conference:
  end_date: 2025-05-09
  location: Abu Dhabi
  name: PhotonIcs and Electromagnetics Research Symposium (PIERS)
  start_date: 2025-05-03
date_created: 2025-05-14T09:59:50Z
date_updated: 2026-01-02T14:29:41Z
department:
- _id: '58'
- _id: '623'
doi: https://doi.org/10.1109/PIERS-Spring66516.2025.11276835
language:
- iso: eng
project:
- _id: '302'
  name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
    DAC'
- _id: '175'
  name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
    Modulatoren auf Basis von CMOS und LNOI (C11*)'
publication: 'PIERS Proceedings '
publication_status: accepted
publisher: PhotonIcs and Electromagnetics Research Symposium (PIERS)
status: public
title: Broadband Nyquist Pulse Generation on TFLN Platform for Integrated Quantum
  Source
type: conference
user_id: '13256'
year: '2025'
...
---
_id: '59896'
abstract:
- lang: eng
  text: We present an electronic-photonic co-designed Mach-Zehnder modulator with
    linear segment drivers in a photonic SOI-CMOS technology with an EO 3-dB bandwidth
    of ≥ 27 GHz and data transmission up to 64 Gbit/s without pre-emphasis.
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Martin Miroslavov
  full_name: Mihaylov, Martin Miroslavov
  id: '42449'
  last_name: Mihaylov
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: Kress C, Schwabe T, Mihaylov MM, Scheytt JC. High-Speed Mach-Zehnder Modulator
    with Linear Segmented On-Chip Drivers in Photonic 45nm SOI-CMOS Technology .
  apa: 'Kress, C., Schwabe, T., Mihaylov, M. M., &#38; Scheytt, J. C. (n.d.). <i>High-Speed
    Mach-Zehnder Modulator with Linear Segmented On-Chip Drivers in Photonic 45nm
    SOI-CMOS Technology </i>. CLEO: Conference on Lasers and Electro-Optics, Long
    Beach, CA, USA.'
  bibtex: '@inproceedings{Kress_Schwabe_Mihaylov_Scheytt, title={High-Speed Mach-Zehnder
    Modulator with Linear Segmented On-Chip Drivers in Photonic 45nm SOI-CMOS Technology
    }, author={Kress, Christian and Schwabe, Tobias and Mihaylov, Martin Miroslavov
    and Scheytt, J. Christoph} }'
  chicago: Kress, Christian, Tobias Schwabe, Martin Miroslavov Mihaylov, and J. Christoph
    Scheytt. “High-Speed Mach-Zehnder Modulator with Linear Segmented On-Chip Drivers
    in Photonic 45nm SOI-CMOS Technology ,” n.d.
  ieee: 'C. Kress, T. Schwabe, M. M. Mihaylov, and J. C. Scheytt, “High-Speed Mach-Zehnder
    Modulator with Linear Segmented On-Chip Drivers in Photonic 45nm SOI-CMOS Technology
    ,” presented at the CLEO: Conference on Lasers and Electro-Optics, Long Beach,
    CA, USA.'
  mla: Kress, Christian, et al. <i>High-Speed Mach-Zehnder Modulator with Linear Segmented
    On-Chip Drivers in Photonic 45nm SOI-CMOS Technology </i>.
  short: 'C. Kress, T. Schwabe, M.M. Mihaylov, J.C. Scheytt, in: n.d.'
conference:
  end_date: 2025-05-09
  location: Long Beach, CA, USA
  name: 'CLEO: Conference on Lasers and Electro-Optics'
  start_date: 2025-05-04
date_created: 2025-05-14T11:08:07Z
date_updated: 2026-03-31T09:06:49Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ieeexplore.ieee.org/document/11190539
oa: '1'
project:
- _id: '175'
  name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
    Modulatoren auf Basis von CMOS und LNOI (C11*)'
- _id: '302'
  name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
    DAC'
publication_status: accepted
status: public
title: 'High-Speed Mach-Zehnder Modulator with Linear Segmented On-Chip Drivers in
  Photonic 45nm SOI-CMOS Technology '
type: conference
user_id: '13256'
year: '2025'
...
---
_id: '54668'
abstract:
- lang: eng
  text: Samples of dielectric optical waveguides of rib or strip type in thin-film
    lithium niobate (TFLN) technology are characterized with respect to their optical
    loss using the Fabry-Pérot method. Attributing the losses mainly to sidewall roughness,
    we employ a simple perturbational procedure, based on rigorously computed mode
    profiles of idealized channels, to estimate the attenuation for waveguides with
    different cross sections. A single fit parameter suffices for an adequate modelling
    of the effect of the waveguide geometry on the loss levels.
author:
- first_name: Manfred
  full_name: Hammer, Manfred
  id: '48077'
  last_name: Hammer
  orcid: 0000-0002-6331-9348
- first_name: Silia
  full_name: Babel, Silia
  id: '63231'
  last_name: Babel
  orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Henna
  full_name: Farheen, Henna
  id: '53444'
  last_name: Farheen
  orcid: 0000-0001-7730-3489
- first_name: Laura
  full_name: Padberg, Laura
  id: '40300'
  last_name: Padberg
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
citation:
  ama: Hammer M, Babel S, Farheen H, et al. Estimation of losses caused by sidewall
    roughness in thin-film lithium niobate rib and strip waveguides. <i>Optics Express</i>.
    2024;32(13):22878. doi:<a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>
  apa: Hammer, M., Babel, S., Farheen, H., Padberg, L., Scheytt, J. C., Silberhorn,
    C., &#38; Förstner, J. (2024). Estimation of losses caused by sidewall roughness
    in thin-film lithium niobate rib and strip waveguides. <i>Optics Express</i>,
    <i>32</i>(13), 22878. <a href="https://doi.org/10.1364/oe.521766">https://doi.org/10.1364/oe.521766</a>
  bibtex: '@article{Hammer_Babel_Farheen_Padberg_Scheytt_Silberhorn_Förstner_2024,
    title={Estimation of losses caused by sidewall roughness in thin-film lithium
    niobate rib and strip waveguides}, volume={32}, DOI={<a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>},
    number={13}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Hammer,
    Manfred and Babel, Silia and Farheen, Henna and Padberg, Laura and Scheytt, J.
    Christoph and Silberhorn, Christine and Förstner, Jens}, year={2024}, pages={22878}
    }'
  chicago: 'Hammer, Manfred, Silia Babel, Henna Farheen, Laura Padberg, J. Christoph
    Scheytt, Christine Silberhorn, and Jens Förstner. “Estimation of Losses Caused
    by Sidewall Roughness in Thin-Film Lithium Niobate Rib and Strip Waveguides.”
    <i>Optics Express</i> 32, no. 13 (2024): 22878. <a href="https://doi.org/10.1364/oe.521766">https://doi.org/10.1364/oe.521766</a>.'
  ieee: 'M. Hammer <i>et al.</i>, “Estimation of losses caused by sidewall roughness
    in thin-film lithium niobate rib and strip waveguides,” <i>Optics Express</i>,
    vol. 32, no. 13, p. 22878, 2024, doi: <a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>.'
  mla: Hammer, Manfred, et al. “Estimation of Losses Caused by Sidewall Roughness
    in Thin-Film Lithium Niobate Rib and Strip Waveguides.” <i>Optics Express</i>,
    vol. 32, no. 13, Optica Publishing Group, 2024, p. 22878, doi:<a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>.
  short: M. Hammer, S. Babel, H. Farheen, L. Padberg, J.C. Scheytt, C. Silberhorn,
    J. Förstner, Optics Express 32 (2024) 22878.
date_created: 2024-06-10T11:18:06Z
date_updated: 2024-07-22T07:43:02Z
ddc:
- '530'
department:
- _id: '61'
- _id: '429'
- _id: '623'
- _id: '263'
- _id: '288'
doi: 10.1364/oe.521766
file:
- access_level: open_access
  content_type: application/pdf
  creator: fossie
  date_created: 2024-06-10T11:25:00Z
  date_updated: 2024-06-10T11:25:00Z
  file_id: '54669'
  file_name: 2024-06 Hammer - Optics Express - Estimation of losses caused by sidewall
    roughness in thin-film lithium niobate rib and strip waveguides.pdf
  file_size: 4004782
  relation: main_file
file_date_updated: 2024-06-10T11:25:00Z
has_accepted_license: '1'
intvolume: '        32'
issue: '13'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '22878'
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '175'
  grant_number: '231447078'
  name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
    Modulatoren auf Basis von CMOS und LNOI (C11*)'
- _id: '167'
  grant_number: '231447078'
  name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
    eines photonischen Quantensystems (B06*)'
- _id: '266'
  grant_number: PROFILNRW-2020-067
  name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
publication: Optics Express
publication_identifier:
  issn:
  - 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Estimation of losses caused by sidewall roughness in thin-film lithium niobate
  rib and strip waveguides
type: journal_article
user_id: '158'
volume: 32
year: '2024'
...
---
_id: '57107'
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Martin Miroslavov
  full_name: Mihaylov, Martin Miroslavov
  id: '42449'
  last_name: Mihaylov
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kress C, Schwabe T, Mihaylov MM, Silberhorn C, Scheytt JC. Integrated Pulse
    Generator for Photon Pair Generation using Lithium Niobate on Insulator Technology.
    In: ; 2024.'
  apa: Kress, C., Schwabe, T., Mihaylov, M. M., Silberhorn, C., &#38; Scheytt, J.
    C. (2024). <i>Integrated Pulse Generator for Photon Pair Generation using Lithium
    Niobate on Insulator Technology</i>. Quantum Photonics Spotlight, Paderborn.
  bibtex: '@inproceedings{Kress_Schwabe_Mihaylov_Silberhorn_Scheytt_2024, title={Integrated
    Pulse Generator for Photon Pair Generation using Lithium Niobate on Insulator
    Technology}, author={Kress, Christian and Schwabe, Tobias and Mihaylov, Martin
    Miroslavov and Silberhorn, Christine and Scheytt, J. Christoph}, year={2024} }'
  chicago: Kress, Christian, Tobias Schwabe, Martin Miroslavov Mihaylov, Christine
    Silberhorn, and J. Christoph Scheytt. “Integrated Pulse Generator for Photon Pair
    Generation Using Lithium Niobate on Insulator Technology,” 2024.
  ieee: C. Kress, T. Schwabe, M. M. Mihaylov, C. Silberhorn, and J. C. Scheytt, “Integrated
    Pulse Generator for Photon Pair Generation using Lithium Niobate on Insulator
    Technology,” presented at the Quantum Photonics Spotlight, Paderborn, 2024.
  mla: Kress, Christian, et al. <i>Integrated Pulse Generator for Photon Pair Generation
    Using Lithium Niobate on Insulator Technology</i>. 2024.
  short: 'C. Kress, T. Schwabe, M.M. Mihaylov, C. Silberhorn, J.C. Scheytt, in: 2024.'
conference:
  end_date: 2024-10-10
  location: Paderborn
  name: Quantum Photonics Spotlight
  start_date: 2024-10-08
date_created: 2024-11-15T10:20:33Z
date_updated: 2024-11-15T10:21:02Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
project:
- _id: '175'
  grant_number: '231447078'
  name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
    Modulatoren auf Basis von CMOS und LNOI (C11*)'
status: public
title: Integrated Pulse Generator for Photon Pair Generation using Lithium Niobate
  on Insulator Technology
type: conference_abstract
user_id: '13256'
year: '2024'
...
---
_id: '45578'
abstract:
- lang: eng
  text: A frequency-flexible Nyquist pulse synthesizer is presented with optical pulse
    bandwidths up to fopt=100 GHz and repetition rates equal to fopt/9, fabricated
    in an electronic-photonic co-integrated platform utilizing linear on-chip drivers.
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kress C, Schwabe T, Silberhorn C, Scheytt JC. Generation of 100 GHz Periodic
    Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic
    Platform. In: <i> Conference on Lasers and Electro-Optics (CLEO) 2023</i>. Optica
    Publishing Group; 2023. doi:<a href="https://doi.org/10.1364/CLEO_SI.2023.SF1P.6">https://doi.org/10.1364/CLEO_SI.2023.SF1P.6</a>'
  apa: Kress, C., Schwabe, T., Silberhorn, C., &#38; Scheytt, J. C. (2023). Generation
    of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a
    Silicon Electronic-Photonic Platform. <i> Conference on Lasers and Electro-Optics
    (CLEO) 2023</i>.  Conference on Lasers and Electro-Optics (CLEO), San Jose, CA,
    USA. <a href="https://doi.org/10.1364/CLEO_SI.2023.SF1P.6">https://doi.org/10.1364/CLEO_SI.2023.SF1P.6</a>
  bibtex: '@inproceedings{Kress_Schwabe_Silberhorn_Scheytt_2023, title={Generation
    of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a
    Silicon Electronic-Photonic Platform}, DOI={<a href="https://doi.org/10.1364/CLEO_SI.2023.SF1P.6">https://doi.org/10.1364/CLEO_SI.2023.SF1P.6</a>},
    booktitle={ Conference on Lasers and Electro-Optics (CLEO) 2023}, publisher={Optica
    Publishing Group}, author={Kress, Christian and Schwabe, Tobias and Silberhorn,
    Christine and Scheytt, J. Christoph}, year={2023} }'
  chicago: Kress, Christian, Tobias Schwabe, Christine Silberhorn, and J. Christoph
    Scheytt. “Generation of 100 GHz Periodic Nyquist Pulses Using Cascaded Mach-Zehnder
    Modulators in a Silicon Electronic-Photonic Platform.” In <i> Conference on Lasers
    and Electro-Optics (CLEO) 2023</i>. Optica Publishing Group, 2023. <a href="https://doi.org/10.1364/CLEO_SI.2023.SF1P.6">https://doi.org/10.1364/CLEO_SI.2023.SF1P.6</a>.
  ieee: 'C. Kress, T. Schwabe, C. Silberhorn, and J. C. Scheytt, “Generation of 100
    GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon
    Electronic-Photonic Platform,” presented at the  Conference on Lasers and Electro-Optics
    (CLEO), San Jose, CA, USA, 2023, doi: <a href="https://doi.org/10.1364/CLEO_SI.2023.SF1P.6">https://doi.org/10.1364/CLEO_SI.2023.SF1P.6</a>.'
  mla: Kress, Christian, et al. “Generation of 100 GHz Periodic Nyquist Pulses Using
    Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic Platform.” <i>
    Conference on Lasers and Electro-Optics (CLEO) 2023</i>, Optica Publishing Group,
    2023, doi:<a href="https://doi.org/10.1364/CLEO_SI.2023.SF1P.6">https://doi.org/10.1364/CLEO_SI.2023.SF1P.6</a>.
  short: 'C. Kress, T. Schwabe, C. Silberhorn, J.C. Scheytt, in:  Conference on Lasers
    and Electro-Optics (CLEO) 2023, Optica Publishing Group, 2023.'
conference:
  end_date: 2023-05-12
  location: San Jose, CA, USA
  name: ' Conference on Lasers and Electro-Optics (CLEO)'
  start_date: 2023-05-08
date_created: 2023-06-12T10:25:25Z
date_updated: 2025-12-12T11:26:12Z
department:
- _id: '58'
- _id: '230'
- _id: '623'
doi: https://doi.org/10.1364/CLEO_SI.2023.SF1P.6
language:
- iso: eng
project:
- _id: '302'
  name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC'
- _id: '175'
  name: 'TRR 142; TP C11: Kompakte Photonenpaar-Quelle mit ultraschnellen Modulatoren
    auf Basis von CMOS und LNOI'
publication: ' Conference on Lasers and Electro-Optics (CLEO) 2023'
publisher: Optica Publishing Group
status: public
title: Generation of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators
  in a Silicon Electronic-Photonic Platform
type: conference
user_id: '13256'
year: '2023'
...