Reconfigurable high-order mode pass filter for mode-division multiplexing
In mode division multiplexing (MDM) optical system, the mode filter has become an inseparable part to reduce modal crosstalk and transmit the desired modes unabatedly. As filtering out lower-order mode is difficult, here we propose a reconfigurable structure of a higher-order mode pass filter consis...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022029942 |
| _version_ | 1811213611306057728 |
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| author | Prapty Saha Oruni Aminul Md. Atiqur Rahman Md. Shah Alam Kazi Tanvir Ahmmed |
| author_facet | Prapty Saha Oruni Aminul Md. Atiqur Rahman Md. Shah Alam Kazi Tanvir Ahmmed |
| author_sort | Prapty Saha |
| collection | DOAJ |
| description | In mode division multiplexing (MDM) optical system, the mode filter has become an inseparable part to reduce modal crosstalk and transmit the desired modes unabatedly. As filtering out lower-order mode is difficult, here we propose a reconfigurable structure of a higher-order mode pass filter consisting of two tunable mode converters and a directional coupler (DC) in a three-mode planar waveguide platform. By switching the working states of the mode converters, the structure can also be used as a fundamental mode (TE0) pass filter and hence dynamic output signals can be achieved. For the second-order mode (TE2) transmission, the simulated excess loss is ∼0.61 dB at 1.550 μm and the extinction ratio remains ≥24 dB (power ratio of TE0 & TE2 Launch) and ≥25 dB (power ratio of TE1 & TE2 Launch) at the entire C-band (1.530–1.565 μm). The device has negligible polarization dependence and hence the TM polarization exhibits similar results. |
| first_indexed | 2024-04-12T05:49:33Z |
| format | Article |
| id | doaj.art-4a5fce09befc40fa8b88bef1b495d428 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-12T05:49:33Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-4a5fce09befc40fa8b88bef1b495d4282022-12-22T03:45:20ZengElsevierHeliyon2405-84402022-11-01811e11706Reconfigurable high-order mode pass filter for mode-division multiplexingPrapty Saha0Oruni Aminul1Md. Atiqur Rahman2Md. Shah Alam3Kazi Tanvir Ahmmed4Department of Electrical and Electronic Engineering, University of Chittagong, Chittagong, 4331, BangladeshDepartment of Electrical and Electronic Engineering, University of Chittagong, Chittagong, 4331, BangladeshDepartment of Electrical and Electronic Engineering, University of Chittagong, Chittagong, 4331, BangladeshDepartment of Electrical and Electronic Engineering, University of Chittagong, Chittagong, 4331, BangladeshCorresponding author.; Department of Electrical and Electronic Engineering, University of Chittagong, Chittagong, 4331, BangladeshIn mode division multiplexing (MDM) optical system, the mode filter has become an inseparable part to reduce modal crosstalk and transmit the desired modes unabatedly. As filtering out lower-order mode is difficult, here we propose a reconfigurable structure of a higher-order mode pass filter consisting of two tunable mode converters and a directional coupler (DC) in a three-mode planar waveguide platform. By switching the working states of the mode converters, the structure can also be used as a fundamental mode (TE0) pass filter and hence dynamic output signals can be achieved. For the second-order mode (TE2) transmission, the simulated excess loss is ∼0.61 dB at 1.550 μm and the extinction ratio remains ≥24 dB (power ratio of TE0 & TE2 Launch) and ≥25 dB (power ratio of TE1 & TE2 Launch) at the entire C-band (1.530–1.565 μm). The device has negligible polarization dependence and hence the TM polarization exhibits similar results.http://www.sciencedirect.com/science/article/pii/S2405844022029942Mode filterMode converterPlanar waveguideMZI device |
| spellingShingle | Prapty Saha Oruni Aminul Md. Atiqur Rahman Md. Shah Alam Kazi Tanvir Ahmmed Reconfigurable high-order mode pass filter for mode-division multiplexing Heliyon Mode filter Mode converter Planar waveguide MZI device |
| title | Reconfigurable high-order mode pass filter for mode-division multiplexing |
| title_full | Reconfigurable high-order mode pass filter for mode-division multiplexing |
| title_fullStr | Reconfigurable high-order mode pass filter for mode-division multiplexing |
| title_full_unstemmed | Reconfigurable high-order mode pass filter for mode-division multiplexing |
| title_short | Reconfigurable high-order mode pass filter for mode-division multiplexing |
| title_sort | reconfigurable high order mode pass filter for mode division multiplexing |
| topic | Mode filter Mode converter Planar waveguide MZI device |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022029942 |
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