---
_id: '14749'
abstract:
- lang: eng
  text: We unveil a powerful method for the stabilization of laser injection locking
    based on sensing variations in the output beam ellipticity of an optically seeded
    laser. The effect arises due to an interference between the seeding beam and the
    injected laser output. We demonstrate the method for a commercial semiconductor
    laser without the need for any internal changes to the readily operational injection
    locked laser system that was used. The method can also be used to increase the
    mode-hop free tuning range of lasers, and has the potential to fill a void in
    the low-noise laser industry.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Umang
  full_name: Mishra, Umang
  id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
  last_name: Mishra
- first_name: Vyacheslav
  full_name: Li, Vyacheslav
  id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87
  last_name: Li
- first_name: Sebastian
  full_name: Wald, Sebastian
  id: 133F200A-B015-11E9-AD41-0EDAE5697425
  last_name: Wald
- first_name: Sofya
  full_name: Agafonova, Sofya
  id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
  last_name: Agafonova
  orcid: 0000-0003-0582-2946
- first_name: Fritz R
  full_name: Diorico, Fritz R
  id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
  last_name: Diorico
- first_name: Onur
  full_name: Hosten, Onur
  id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
  last_name: Hosten
  orcid: 0000-0002-2031-204X
citation:
  ama: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. Monitoring and active
    stabilization of laser injection locking using beam ellipticity. <i>Optics Letters</i>.
    2023;48(15):3973-3976. doi:<a href="https://doi.org/10.1364/ol.495553">10.1364/ol.495553</a>
  apa: Mishra, U., Li, V., Wald, S., Agafonova, S., Diorico, F. R., &#38; Hosten,
    O. (2023). Monitoring and active stabilization of laser injection locking using
    beam ellipticity. <i>Optics Letters</i>. Optica Publishing Group. <a href="https://doi.org/10.1364/ol.495553">https://doi.org/10.1364/ol.495553</a>
  chicago: Mishra, Umang, Vyacheslav Li, Sebastian Wald, Sofya Agafonova, Fritz R
    Diorico, and Onur Hosten. “Monitoring and Active Stabilization of Laser Injection
    Locking Using Beam Ellipticity.” <i>Optics Letters</i>. Optica Publishing Group,
    2023. <a href="https://doi.org/10.1364/ol.495553">https://doi.org/10.1364/ol.495553</a>.
  ieee: U. Mishra, V. Li, S. Wald, S. Agafonova, F. R. Diorico, and O. Hosten, “Monitoring
    and active stabilization of laser injection locking using beam ellipticity,” <i>Optics
    Letters</i>, vol. 48, no. 15. Optica Publishing Group, pp. 3973–3976, 2023.
  ista: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. 2023. Monitoring
    and active stabilization of laser injection locking using beam ellipticity. Optics
    Letters. 48(15), 3973–3976.
  mla: Mishra, Umang, et al. “Monitoring and Active Stabilization of Laser Injection
    Locking Using Beam Ellipticity.” <i>Optics Letters</i>, vol. 48, no. 15, Optica
    Publishing Group, 2023, pp. 3973–76, doi:<a href="https://doi.org/10.1364/ol.495553">10.1364/ol.495553</a>.
  short: U. Mishra, V. Li, S. Wald, S. Agafonova, F.R. Diorico, O. Hosten, Optics
    Letters 48 (2023) 3973–3976.
date_created: 2024-01-08T13:01:46Z
date_published: 2023-07-21T00:00:00Z
date_updated: 2024-01-09T08:09:32Z
day: '21'
department:
- _id: OnHo
doi: 10.1364/ol.495553
external_id:
  arxiv:
  - '2212.01266'
intvolume: '        48'
issue: '15'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
month: '07'
oa_version: Preprint
page: 3973-3976
publication: Optics Letters
publication_identifier:
  eissn:
  - 1539-4794
  issn:
  - 0146-9592
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Monitoring and active stabilization of laser injection locking using beam ellipticity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 48
year: '2023'
...
---
_id: '14759'
abstract:
- lang: eng
  text: "Proper operation of electro-optic I/Q modulators relies on precise adjustment
    and control of the relative phase biases between the modulator’s internal interferometer
    arms. We present an all-analog phase bias locking scheme where error signals are
    obtained from the beat between the optical carrier and optical tones generated
    by an auxiliary 2 MHz \U0001D445\U0001D439 tone to lock the phases of all three
    involved interferometers for operation up to 10 GHz. With the developed method,
    we demonstrate an I/Q modulator in carrier-suppressed single-sideband mode, where
    the suppressed carrier and sideband are locked at optical power levels <−27dB\r\n
    relative to the transmitted sideband. We describe a simple analytical model for
    calculating the error signals and detail the implementation of the electronic
    circuitry for the implementation of the method."
acknowledgement: We thank Jakob Vorlaufer for technical contributions and Vyacheslav
  Li and Sofia Agafonova for comments on the manuscript.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sebastian
  full_name: Wald, Sebastian
  id: 133F200A-B015-11E9-AD41-0EDAE5697425
  last_name: Wald
  orcid: 0000-0002-5869-1604
- first_name: Fritz R
  full_name: Diorico, Fritz R
  id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
  last_name: Diorico
  orcid: 0000-0002-4947-8924
- first_name: Onur
  full_name: Hosten, Onur
  id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
  last_name: Hosten
  orcid: 0000-0002-2031-204X
citation:
  ama: Wald S, Diorico FR, Hosten O. Analog stabilization of an electro-optic I/Q
    modulator with an auxiliary modulation tone. <i>Applied Optics</i>. 2023;62(1):1-7.
    doi:<a href="https://doi.org/10.1364/ao.474118">10.1364/ao.474118</a>
  apa: Wald, S., Diorico, F. R., &#38; Hosten, O. (2023). Analog stabilization of
    an electro-optic I/Q modulator with an auxiliary modulation tone. <i>Applied Optics</i>.
    Optica Publishing Group. <a href="https://doi.org/10.1364/ao.474118">https://doi.org/10.1364/ao.474118</a>
  chicago: Wald, Sebastian, Fritz R Diorico, and Onur Hosten. “Analog Stabilization
    of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone.” <i>Applied
    Optics</i>. Optica Publishing Group, 2023. <a href="https://doi.org/10.1364/ao.474118">https://doi.org/10.1364/ao.474118</a>.
  ieee: S. Wald, F. R. Diorico, and O. Hosten, “Analog stabilization of an electro-optic
    I/Q modulator with an auxiliary modulation tone,” <i>Applied Optics</i>, vol.
    62, no. 1. Optica Publishing Group, pp. 1–7, 2023.
  ista: Wald S, Diorico FR, Hosten O. 2023. Analog stabilization of an electro-optic
    I/Q modulator with an auxiliary modulation tone. Applied Optics. 62(1), 1–7.
  mla: Wald, Sebastian, et al. “Analog Stabilization of an Electro-Optic I/Q Modulator
    with an Auxiliary Modulation Tone.” <i>Applied Optics</i>, vol. 62, no. 1, Optica
    Publishing Group, 2023, pp. 1–7, doi:<a href="https://doi.org/10.1364/ao.474118">10.1364/ao.474118</a>.
  short: S. Wald, F.R. Diorico, O. Hosten, Applied Optics 62 (2023) 1–7.
date_created: 2024-01-08T13:19:14Z
date_published: 2023-01-01T00:00:00Z
date_updated: 2024-01-09T10:10:34Z
day: '01'
department:
- _id: OnHo
doi: 10.1364/ao.474118
external_id:
  arxiv:
  - '2208.11591'
intvolume: '        62'
issue: '1'
keyword:
- Atomic and Molecular Physics
- and Optics
- Engineering (miscellaneous)
- Electrical and Electronic Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2208.11591
month: '01'
oa: 1
oa_version: Preprint
page: 1-7
publication: Applied Optics
publication_identifier:
  eissn:
  - 2155-3165
  issn:
  - 1559-128X
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation
  tone
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2023'
...
---
_id: '8101'
abstract:
- lang: eng
  text: By rigorously accounting for mesoscale spatial correlations in donor/acceptor
    surface properties, we develop a scale-spanning model for same-material tribocharging.
    We find that mesoscale correlations affect not only the magnitude of charge transfer
    but also the fluctuations—suppressing otherwise overwhelming charge-transfer variability
    that is not observed experimentally. We furthermore propose a generic theoretical
    mechanism by which the mesoscale features might emerge, which is qualitatively
    consistent with other proposals in the literature.
acknowledgement: "We would like to thank Philip Born, Bartosz Grzybowski, Tarik Baytekin,
  and Bilge Baytekin for helpful discussions.\r\nThis project has received funding
  from the European Unions Horizon 2020 research and innovation programme under the
  Marie Skłodowska-Curie Grant Agreement No. 754411."
article_number: '082602'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Galien M
  full_name: Grosjean, Galien M
  id: 0C5FDA4A-9CF6-11E9-8939-FF05E6697425
  last_name: Grosjean
  orcid: 0000-0001-5154-417X
- first_name: Sebastian
  full_name: Wald, Sebastian
  id: 133F200A-B015-11E9-AD41-0EDAE5697425
  last_name: Wald
- first_name: Juan Carlos A
  full_name: Sobarzo Ponce, Juan Carlos A
  id: 4B807D68-AE37-11E9-AC72-31CAE5697425
  last_name: Sobarzo Ponce
- first_name: Scott R
  full_name: Waitukaitis, Scott R
  id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87
  last_name: Waitukaitis
  orcid: 0000-0002-2299-3176
citation:
  ama: Grosjean GM, Wald S, Sobarzo Ponce JCA, Waitukaitis SR. Quantitatively consistent
    scale-spanning model for same-material tribocharging. <i>Physical Review Materials</i>.
    2020;4(8). doi:<a href="https://doi.org/10.1103/PhysRevMaterials.4.082602">10.1103/PhysRevMaterials.4.082602</a>
  apa: Grosjean, G. M., Wald, S., Sobarzo Ponce, J. C. A., &#38; Waitukaitis, S. R.
    (2020). Quantitatively consistent scale-spanning model for same-material tribocharging.
    <i>Physical Review Materials</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevMaterials.4.082602">https://doi.org/10.1103/PhysRevMaterials.4.082602</a>
  chicago: Grosjean, Galien M, Sebastian Wald, Juan Carlos A Sobarzo Ponce, and Scott
    R Waitukaitis. “Quantitatively Consistent Scale-Spanning Model for Same-Material
    Tribocharging.” <i>Physical Review Materials</i>. American Physical Society, 2020.
    <a href="https://doi.org/10.1103/PhysRevMaterials.4.082602">https://doi.org/10.1103/PhysRevMaterials.4.082602</a>.
  ieee: G. M. Grosjean, S. Wald, J. C. A. Sobarzo Ponce, and S. R. Waitukaitis, “Quantitatively
    consistent scale-spanning model for same-material tribocharging,” <i>Physical
    Review Materials</i>, vol. 4, no. 8. American Physical Society, 2020.
  ista: Grosjean GM, Wald S, Sobarzo Ponce JCA, Waitukaitis SR. 2020. Quantitatively
    consistent scale-spanning model for same-material tribocharging. Physical Review
    Materials. 4(8), 082602.
  mla: Grosjean, Galien M., et al. “Quantitatively Consistent Scale-Spanning Model
    for Same-Material Tribocharging.” <i>Physical Review Materials</i>, vol. 4, no.
    8, 082602, American Physical Society, 2020, doi:<a href="https://doi.org/10.1103/PhysRevMaterials.4.082602">10.1103/PhysRevMaterials.4.082602</a>.
  short: G.M. Grosjean, S. Wald, J.C.A. Sobarzo Ponce, S.R. Waitukaitis, Physical
    Review Materials 4 (2020).
date_created: 2020-07-07T11:33:54Z
date_published: 2020-08-17T00:00:00Z
date_updated: 2023-08-22T08:41:32Z
day: '17'
ddc:
- '530'
department:
- _id: ScWa
doi: 10.1103/PhysRevMaterials.4.082602
ec_funded: 1
external_id:
  arxiv:
  - '2006.07120'
  isi:
  - '000561897000001'
file:
- access_level: open_access
  checksum: 288fef1eeb6540c6344bb8f7c8159dc9
  content_type: application/pdf
  creator: ggrosjea
  date_created: 2020-08-17T15:54:20Z
  date_updated: 2020-08-17T15:54:20Z
  file_id: '8277'
  file_name: Grosjean2020.pdf
  file_size: 853753
  relation: main_file
  success: 1
file_date_updated: 2020-08-17T15:54:20Z
has_accepted_license: '1'
intvolume: '         4'
isi: 1
issue: '8'
keyword:
- electric charge
- tribocharging
- soft matter
- granular materials
- polymers
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Materials
publication_identifier:
  issn:
  - 2475-9953
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
  record:
  - id: '12697'
    relation: popular_science
    status: public
scopus_import: '1'
status: public
title: Quantitatively consistent scale-spanning model for same-material tribocharging
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 4
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...