Channel waveguide lasers in bulk Tm:LiYF4 produced by deep diamond-saw dicing Article Swipe
Pavel Loiko
,
Ludovic Gauthier‐Manuel
,
Gurvan Brasse
,
Esrom Kifle
,
Lauren Guillemot
,
Alain Braud
,
Abdelmjid Benayad
,
V. Ménard
,
Patrice Camy
·
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.1364/oe.400497
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.1364/oe.400497
We report on a novel approach to fabricate channel (ridge) waveguides (WGs) in bulk crystals using precision diamond saw dicing. The channels feature a high depth-to-width aspect ratio (deep dicing). The proof-of-the-concept is shown for a Tm 3+ :LiYF 4 fluoride crystal. Channels with a depth of 200 µm and widths of 10–50 µm are diced and characterized by confocal laser microscopy revealing a r.m.s. roughness of the walls well below 100 nm. The channels obtained possess waveguiding properties at ∼815 nm with almost no leakage of the guided mode having a vertical stripe intensity profile into the bulk crystal volume and relatively low propagation losses (0.20-0.43 dB/cm). Laser operation is achieved in quasi-CW regime by pumping at 780 nm. The maximum peak output power reaches 0.68 W at ∼1.91 µm with a slope efficiency of 53.3% (in σ-polarization). The proposed concept is applicable to a variety of laser crystals with different rare-earth dopants.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.400497
- OA Status
- gold
- Cited By
- 8
- References
- 32
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3045445143
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3045445143Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1364/oe.400497Digital Object Identifier
- Title
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Channel waveguide lasers in bulk Tm:LiYF4 produced by deep diamond-saw dicingWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2020Year of publication
- Publication date
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2020-07-26Full publication date if available
- Authors
-
Pavel Loiko, Ludovic Gauthier‐Manuel, Gurvan Brasse, Esrom Kifle, Lauren Guillemot, Alain Braud, Abdelmjid Benayad, V. Ménard, Patrice CamyList of authors in order
- Landing page
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https://doi.org/10.1364/oe.400497Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1364/oe.400497Direct OA link when available
- Concepts
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Wafer dicing, Materials science, Laser, Optics, Diamond, Crystal (programming language), Optoelectronics, Wafer, Composite material, Programming language, Computer science, PhysicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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8Total citation count in OpenAlex
- Citations by year (recent)
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2025: 2, 2024: 1, 2023: 3, 2021: 2Per-year citation counts (last 5 years)
- References (count)
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32Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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