Chip-based optical frequency combs for high-capacity optical communications
Current fibre optic communication systems owe their high-capacity abilities to the wavelength-division multiplexing (WDM) technique, which combines data channels running on different wavelengths, and most often requires many individual lasers. Optical frequency combs, with equally spaced coherent co...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2021-02-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2020-0561 |
| _version_ | 1819134274555609088 |
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| author | Hu Hao Oxenløwe Leif K. |
| author_facet | Hu Hao Oxenløwe Leif K. |
| author_sort | Hu Hao |
| collection | DOAJ |
| description | Current fibre optic communication systems owe their high-capacity abilities to the wavelength-division multiplexing (WDM) technique, which combines data channels running on different wavelengths, and most often requires many individual lasers. Optical frequency combs, with equally spaced coherent comb lines derived from a single source, have recently emerged as a potential substitute for parallel lasers in WDM systems. Benefits include the stable spacing and broadband phase coherence of the comb lines, enabling improved spectral efficiency of transmission systems, as well as potential energy savings in the WDM transmitters. In this paper, we discuss the requirements to a frequency comb for use in a high-capacity optical communication system in terms of optical linewidth, per comb line power and optical carrier-to-noise ratio, and look at the scaling of a comb source for ultra-high capacity systems. Then, we review the latest advances of various chip-based optical frequency comb generation schemes and their applications in optical communications, including mode-locked laser combs, spectral broadening of frequency combs, microresonator-based Kerr frequency combs and electro-optic frequency combs. |
| first_indexed | 2024-12-22T10:00:35Z |
| format | Article |
| id | doaj.art-b63b9141f23b410bbcca474f89975773 |
| institution | Directory Open Access Journal |
| issn | 2192-8606 2192-8614 |
| language | English |
| last_indexed | 2024-12-22T10:00:35Z |
| publishDate | 2021-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-b63b9141f23b410bbcca474f899757732022-12-21T18:30:08ZengDe GruyterNanophotonics2192-86062192-86142021-02-011051367138510.1515/nanoph-2020-0561Chip-based optical frequency combs for high-capacity optical communicationsHu Hao0Oxenløwe Leif K.1DTU Fotonik, Technical University of Denmark, Kgs. Lyngby, DenmarkDTU Fotonik, Technical University of Denmark, Kgs. Lyngby, DenmarkCurrent fibre optic communication systems owe their high-capacity abilities to the wavelength-division multiplexing (WDM) technique, which combines data channels running on different wavelengths, and most often requires many individual lasers. Optical frequency combs, with equally spaced coherent comb lines derived from a single source, have recently emerged as a potential substitute for parallel lasers in WDM systems. Benefits include the stable spacing and broadband phase coherence of the comb lines, enabling improved spectral efficiency of transmission systems, as well as potential energy savings in the WDM transmitters. In this paper, we discuss the requirements to a frequency comb for use in a high-capacity optical communication system in terms of optical linewidth, per comb line power and optical carrier-to-noise ratio, and look at the scaling of a comb source for ultra-high capacity systems. Then, we review the latest advances of various chip-based optical frequency comb generation schemes and their applications in optical communications, including mode-locked laser combs, spectral broadening of frequency combs, microresonator-based Kerr frequency combs and electro-optic frequency combs.https://doi.org/10.1515/nanoph-2020-0561electro-optic frequency combfibre-optic communicationfrequency combkerr frequency combmicro-combmode-locked laserspectral broadeningwavelength division multiplexing (wdm) |
| spellingShingle | Hu Hao Oxenløwe Leif K. Chip-based optical frequency combs for high-capacity optical communications Nanophotonics electro-optic frequency comb fibre-optic communication frequency comb kerr frequency comb micro-comb mode-locked laser spectral broadening wavelength division multiplexing (wdm) |
| title | Chip-based optical frequency combs for high-capacity optical communications |
| title_full | Chip-based optical frequency combs for high-capacity optical communications |
| title_fullStr | Chip-based optical frequency combs for high-capacity optical communications |
| title_full_unstemmed | Chip-based optical frequency combs for high-capacity optical communications |
| title_short | Chip-based optical frequency combs for high-capacity optical communications |
| title_sort | chip based optical frequency combs for high capacity optical communications |
| topic | electro-optic frequency comb fibre-optic communication frequency comb kerr frequency comb micro-comb mode-locked laser spectral broadening wavelength division multiplexing (wdm) |
| url | https://doi.org/10.1515/nanoph-2020-0561 |
| work_keys_str_mv | AT huhao chipbasedopticalfrequencycombsforhighcapacityopticalcommunications AT oxenløweleifk chipbasedopticalfrequencycombsforhighcapacityopticalcommunications |