| Autor: |
Haipeng Liu, Jijun Feng, Jinman Ge, Shanqing Zhuang, Shuo Yuan, Yishu Chen, Xiaojun Li, Qinggui Tan, Qinghua Yu, Heping Zeng |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Nanomaterials, Vol 11, Iss 10, p 2645 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2079-4991 |
| DOI: |
10.3390/nano11102645 |
| Popis: |
An ultra-compact broadband silicon polarizing beam splitter is proposed based on a tilted nano-grating structure. A light cross coupling can be realized for transverse-magnetic mode, while the transverse-electric light can almost completely output from the through port. The length of the coupling region is only 6.8 μm, while an extinction ratio of 23.76 dB can be realized at a wavelength of 1550 nm. As a proof of concept, the device was fabricated by a commercial silicon photonic foundry. It can realize a 19.84 dB extinction ratio and an 80 nm working bandwidth with an extinction ratio of larger than 10 dB. The presented device also shows a good fabrication tolerance to the structure deviations, which is favorable for its practical applications in silicon photonics. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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