Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics
We consider a dual core polyethyelene microstructured fiber with teflon and air inclusions in the core region for achieving compact and efficient polarization splitting at THz frequencies. The teflon inclusions form slit-like structure that helps in shifting the degeneracy point to lower frequencies...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-08-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950121000420 |
| _version_ | 1818888817732485120 |
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| author | Vikas Kumar R.K. Varshney Sunil Kumar |
| author_facet | Vikas Kumar R.K. Varshney Sunil Kumar |
| author_sort | Vikas Kumar |
| collection | DOAJ |
| description | We consider a dual core polyethyelene microstructured fiber with teflon and air inclusions in the core region for achieving compact and efficient polarization splitting at THz frequencies. The teflon inclusions form slit-like structure that helps in shifting the degeneracy point to lower frequencies. The y-polarized light couples from one core to the other within a very small device length of a few cm. Modal fields, effective indices, device length, extinction ratio and different losses have been calculated, which provide a handle to reduce the polarization splitting length at frequencies below and above ~ 0.7THz. Extinction ratios are found to be significantly high in a broad frequency range, e.g. a value of ~ 70 dB for x-polarization and ~ 45 dB for the y-polarization with about 2.1 cm device length at 1 THz. This device length is more than 30 times shorter than previously reported values. However, it attains a maximum device length of 21.6 cm at ~ 0.7 THz, which is also shorter than the corresponding earlier reported value. |
| first_indexed | 2024-12-19T16:59:09Z |
| format | Article |
| id | doaj.art-706e659c223f4b9994386fd2bd4cfd01 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-12-19T16:59:09Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-706e659c223f4b9994386fd2bd4cfd012022-12-21T20:13:20ZengElsevierResults in Optics2666-95012021-08-014100094Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonicsVikas Kumar0R.K. Varshney1Sunil Kumar2Corresponding author.; Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, IndiaDepartment of Physics, Indian Institute of Technology Delhi, New Delhi 110016, IndiaDepartment of Physics, Indian Institute of Technology Delhi, New Delhi 110016, IndiaWe consider a dual core polyethyelene microstructured fiber with teflon and air inclusions in the core region for achieving compact and efficient polarization splitting at THz frequencies. The teflon inclusions form slit-like structure that helps in shifting the degeneracy point to lower frequencies. The y-polarized light couples from one core to the other within a very small device length of a few cm. Modal fields, effective indices, device length, extinction ratio and different losses have been calculated, which provide a handle to reduce the polarization splitting length at frequencies below and above ~ 0.7THz. Extinction ratios are found to be significantly high in a broad frequency range, e.g. a value of ~ 70 dB for x-polarization and ~ 45 dB for the y-polarization with about 2.1 cm device length at 1 THz. This device length is more than 30 times shorter than previously reported values. However, it attains a maximum device length of 21.6 cm at ~ 0.7 THz, which is also shorter than the corresponding earlier reported value.http://www.sciencedirect.com/science/article/pii/S2666950121000420THz PhotonicsMicrostructured fiberPolarization splitterDevice lengthExtinction ratio |
| spellingShingle | Vikas Kumar R.K. Varshney Sunil Kumar Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics Results in Optics THz Photonics Microstructured fiber Polarization splitter Device length Extinction ratio |
| title | Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics |
| title_full | Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics |
| title_fullStr | Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics |
| title_full_unstemmed | Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics |
| title_short | Compact and efficient polarization splitter based on dual core microstructured fiber for THz photonics |
| title_sort | compact and efficient polarization splitter based on dual core microstructured fiber for thz photonics |
| topic | THz Photonics Microstructured fiber Polarization splitter Device length Extinction ratio |
| url | http://www.sciencedirect.com/science/article/pii/S2666950121000420 |
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