Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber
Photons are the fundamental carriers of classical and quantum information across long distances via optical fibers. Multimode fibers with many transverse optical modes can support high‐capacity communication through space‐division multiplexing. While spatial correlations in light transmission via fi...
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| Language: | English |
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Wiley-VCH
2025-06-01
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| Series: | Advanced Photonics Research |
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| Online Access: | https://doi.org/10.1002/adpr.202400156 |
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| author | Henry C. Hammer Ravitej Uppu |
| author_facet | Henry C. Hammer Ravitej Uppu |
| author_sort | Henry C. Hammer |
| collection | DOAJ |
| description | Photons are the fundamental carriers of classical and quantum information across long distances via optical fibers. Multimode fibers with many transverse optical modes can support high‐capacity communication through space‐division multiplexing. While spatial correlations in light transmission via fibers have been investigated for counteracting mode mixing, less is known about frequency correlations, which are critical for high‐capacity communication using ultrashort pulses. This study uses complex wavefront shaping methods to investigate how core geometry affects the frequency correlation bandwidth of structured wavefronts in circular and rectilinear‐core fibers. Measurements reveal that rectilinear‐core fibers exhibit up to a 40% increase in frequency correlation bandwidth compared to circular core fibers, particularly when focusing light away from the fiber center—common in spatially multiplexed optical communication. This enhanced bandwidth results in a 20% boost in optical communication channel capacity, highlighting the potential of rectilinear core fibers. Furthermore, this observation of novel spatiotemporal wave correlations could be exploited for application of rectilinear core fibers in chip‐to‐chip interconnects for photonic quantum processors, contributing to scale up of photonic quantum technologies. |
| format | Article |
| id | doaj-art-cceafd2f42c44c22b0698a71e9852ed3 |
| institution | OA Journals |
| issn | 2699-9293 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Photonics Research |
| spelling | doaj-art-cceafd2f42c44c22b0698a71e9852ed32025-08-20T02:23:48ZengWiley-VCHAdvanced Photonics Research2699-92932025-06-0166n/an/a10.1002/adpr.202400156Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical FiberHenry C. Hammer0Ravitej Uppu1Department of Physics & Astronomy University of Iowa Iowa IA 52242 USADepartment of Physics & Astronomy University of Iowa Iowa IA 52242 USAPhotons are the fundamental carriers of classical and quantum information across long distances via optical fibers. Multimode fibers with many transverse optical modes can support high‐capacity communication through space‐division multiplexing. While spatial correlations in light transmission via fibers have been investigated for counteracting mode mixing, less is known about frequency correlations, which are critical for high‐capacity communication using ultrashort pulses. This study uses complex wavefront shaping methods to investigate how core geometry affects the frequency correlation bandwidth of structured wavefronts in circular and rectilinear‐core fibers. Measurements reveal that rectilinear‐core fibers exhibit up to a 40% increase in frequency correlation bandwidth compared to circular core fibers, particularly when focusing light away from the fiber center—common in spatially multiplexed optical communication. This enhanced bandwidth results in a 20% boost in optical communication channel capacity, highlighting the potential of rectilinear core fibers. Furthermore, this observation of novel spatiotemporal wave correlations could be exploited for application of rectilinear core fibers in chip‐to‐chip interconnects for photonic quantum processors, contributing to scale up of photonic quantum technologies.https://doi.org/10.1002/adpr.202400156multimode fibersoptical communicationtransmission matriceswave transportwavefront shaping |
| spellingShingle | Henry C. Hammer Ravitej Uppu Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber Advanced Photonics Research multimode fibers optical communication transmission matrices wave transport wavefront shaping |
| title | Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber |
| title_full | Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber |
| title_fullStr | Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber |
| title_full_unstemmed | Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber |
| title_short | Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber |
| title_sort | effect of core geometry on frequency correlations and channel capacity of a multimode optical fiber |
| topic | multimode fibers optical communication transmission matrices wave transport wavefront shaping |
| url | https://doi.org/10.1002/adpr.202400156 |
| work_keys_str_mv | AT henrychammer effectofcoregeometryonfrequencycorrelationsandchannelcapacityofamultimodeopticalfiber AT ravitejuppu effectofcoregeometryonfrequencycorrelationsandchannelcapacityofamultimodeopticalfiber |