Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning
Abstract A technique to selectively double or quadruple the frequency of a microwave signal is experimentally demonstrated based on a commercial single‐output Mach–Zehnder modulator (MZM). Selectability is achieved by only a change in optical path length in a post‐MZM optical subsystem, without filt...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-05-01
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| Series: | Electronics Letters |
| Online Access: | https://doi.org/10.1049/ell2.12491 |
| _version_ | 1811340191298748416 |
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| author | M.R. Maafa D.N. Maywar |
| author_facet | M.R. Maafa D.N. Maywar |
| author_sort | M.R. Maafa |
| collection | DOAJ |
| description | Abstract A technique to selectively double or quadruple the frequency of a microwave signal is experimentally demonstrated based on a commercial single‐output Mach–Zehnder modulator (MZM). Selectability is achieved by only a change in optical path length in a post‐MZM optical subsystem, without filtering and without changing the MZM drive voltage. This path length controls the synchronisation of two similarly shaped optical signals that are incoherently combined. Multiplication from 2 GHz (S‐band) to 4 GHz (C‐band, doubling) and to 8 GHz (X‐band, quadrupling) is demonstrated with side‐tone suppression greater than 24 dB. At a 10‐kHz offset from the quadrupled frequency, the phase‐noise degradation is only 7.9 dB, a 4.1‐dB improvement over traditional quadrupling techniques. |
| first_indexed | 2024-04-13T18:38:15Z |
| format | Article |
| id | doaj.art-bd2b03a3250448dfb3ef54ed7d3cc180 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-04-13T18:38:15Z |
| publishDate | 2022-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-bd2b03a3250448dfb3ef54ed7d3cc1802022-12-22T02:34:49ZengWileyElectronics Letters0013-51941350-911X2022-05-01581143944110.1049/ell2.12491Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuningM.R. Maafa0D.N. Maywar1Department of Electrical Engineering Rochester Institute of Technology Rochester New York USADepartment of Electrical Engineering Rochester Institute of Technology Rochester New York USAAbstract A technique to selectively double or quadruple the frequency of a microwave signal is experimentally demonstrated based on a commercial single‐output Mach–Zehnder modulator (MZM). Selectability is achieved by only a change in optical path length in a post‐MZM optical subsystem, without filtering and without changing the MZM drive voltage. This path length controls the synchronisation of two similarly shaped optical signals that are incoherently combined. Multiplication from 2 GHz (S‐band) to 4 GHz (C‐band, doubling) and to 8 GHz (X‐band, quadrupling) is demonstrated with side‐tone suppression greater than 24 dB. At a 10‐kHz offset from the quadrupled frequency, the phase‐noise degradation is only 7.9 dB, a 4.1‐dB improvement over traditional quadrupling techniques.https://doi.org/10.1049/ell2.12491 |
| spellingShingle | M.R. Maafa D.N. Maywar Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning Electronics Letters |
| title | Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning |
| title_full | Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning |
| title_fullStr | Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning |
| title_full_unstemmed | Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning |
| title_short | Selectable microwave‐frequency doubling and quadrupling via optical path‐length tuning |
| title_sort | selectable microwave frequency doubling and quadrupling via optical path length tuning |
| url | https://doi.org/10.1049/ell2.12491 |
| work_keys_str_mv | AT mrmaafa selectablemicrowavefrequencydoublingandquadruplingviaopticalpathlengthtuning AT dnmaywar selectablemicrowavefrequencydoublingandquadruplingviaopticalpathlengthtuning |