Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array
Abstract We report a self-induced spatially-coherent dot array consisting of fourteen units of vertical-cavity surface-emitting modes that exhibit spatially uniform spectra. A 47.5 µm total beam width and 0.5° narrow emission are achieved using an oblong cavity enclosed with a flat top mirror, cylin...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-12-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-26257-0 |
| _version_ | 1798005504526516224 |
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| author | Tatsushi Hamaguchi Tomohiro Makino Kentaro Hayashi Jared A. Kearns Maho Ohara Maiko Ito Noriko Kobayashi Shouetsu Nagane Koichi Sato Yuki Nakamura Yukio Hoshina Tatsurou Jyoukawa Takumi Watanabe Yuichiro Kikuchi Eiji Nakayama Rintaro Koda Noriyuki Futagawa |
| author_facet | Tatsushi Hamaguchi Tomohiro Makino Kentaro Hayashi Jared A. Kearns Maho Ohara Maiko Ito Noriko Kobayashi Shouetsu Nagane Koichi Sato Yuki Nakamura Yukio Hoshina Tatsurou Jyoukawa Takumi Watanabe Yuichiro Kikuchi Eiji Nakayama Rintaro Koda Noriyuki Futagawa |
| author_sort | Tatsushi Hamaguchi |
| collection | DOAJ |
| description | Abstract We report a self-induced spatially-coherent dot array consisting of fourteen units of vertical-cavity surface-emitting modes that exhibit spatially uniform spectra. A 47.5 µm total beam width and 0.5° narrow emission are achieved using an oblong cavity enclosed with a flat top mirror, cylindrically curved bottom mirror, and side facet. Notably, terminating the side of the cavity with a perpendicular facet enhances the horizontal propagation, which couples with the vertical resonance in each dot, similar to the case of master lasers in injection-locked lasers that delocalize the modes. Conventional semiconductor lasers, edge-emitting lasers, and vertical-cavity surface-emitting lasers have a Fabry–Pérot cavity; furthermore, emission and resonance are in identical directions, limiting the beam width to micrometers. Though the present structure has the same scheme of propagation, the right-angled facet synchronizes the modes and drastically expands the beam width. |
| first_indexed | 2024-04-11T12:41:24Z |
| format | Article |
| id | doaj.art-d2f0fac4519d46b6850a1ee76fc241a0 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T12:41:24Z |
| publishDate | 2022-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-d2f0fac4519d46b6850a1ee76fc241a02022-12-22T04:23:30ZengNature PortfolioScientific Reports2045-23222022-12-011211910.1038/s41598-022-26257-0Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot arrayTatsushi Hamaguchi0Tomohiro Makino1Kentaro Hayashi2Jared A. Kearns3Maho Ohara4Maiko Ito5Noriko Kobayashi6Shouetsu Nagane7Koichi Sato8Yuki Nakamura9Yukio Hoshina10Tatsurou Jyoukawa11Takumi Watanabe12Yuichiro Kikuchi13Eiji Nakayama14Rintaro Koda15Noriyuki Futagawa16Tokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationTokyo Laboratory 06, Sony Group CorporationAbstract We report a self-induced spatially-coherent dot array consisting of fourteen units of vertical-cavity surface-emitting modes that exhibit spatially uniform spectra. A 47.5 µm total beam width and 0.5° narrow emission are achieved using an oblong cavity enclosed with a flat top mirror, cylindrically curved bottom mirror, and side facet. Notably, terminating the side of the cavity with a perpendicular facet enhances the horizontal propagation, which couples with the vertical resonance in each dot, similar to the case of master lasers in injection-locked lasers that delocalize the modes. Conventional semiconductor lasers, edge-emitting lasers, and vertical-cavity surface-emitting lasers have a Fabry–Pérot cavity; furthermore, emission and resonance are in identical directions, limiting the beam width to micrometers. Though the present structure has the same scheme of propagation, the right-angled facet synchronizes the modes and drastically expands the beam width.https://doi.org/10.1038/s41598-022-26257-0 |
| spellingShingle | Tatsushi Hamaguchi Tomohiro Makino Kentaro Hayashi Jared A. Kearns Maho Ohara Maiko Ito Noriko Kobayashi Shouetsu Nagane Koichi Sato Yuki Nakamura Yukio Hoshina Tatsurou Jyoukawa Takumi Watanabe Yuichiro Kikuchi Eiji Nakayama Rintaro Koda Noriyuki Futagawa Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array Scientific Reports |
| title | Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array |
| title_full | Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array |
| title_fullStr | Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array |
| title_full_unstemmed | Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array |
| title_short | Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array |
| title_sort | spontaneously implemented spatial coherence in vertical cavity surface emitting laser dot array |
| url | https://doi.org/10.1038/s41598-022-26257-0 |
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