Abstract
Utilizing the inverse design engineering method of topology optimization, we have realized high-performing all-silicon ultra-compact polarization beam splitters. We show that the device footprint of the polarization beam splitter can be as compact as similar to 2 µm2 while performing experimentally with a polarization splitting loss lower than similar to 0.82 dB and an extinction ratio larger than similar to 15 dB in the C-band. We investigate the device performance as a function of the device length and find a lower length above which the performance only increases incrementally. Imposing a minimum feature size constraint in the optimization is shown to affect the performance negatively and reveals the necessity for light to scatter on a sub-wavelength scale to obtain functionalities in compact photonic devices.
Original language | English |
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Title of host publication | Proceedings of SPIE : Photonic and Phononic Properties of Engineered Nanostructures VI |
Editors | Ali Adibi, Shawn-Yu Lin, Axel Scherer |
Number of pages | 6 |
Volume | 9756 |
Publisher | SPIE - International Society for Optical Engineering |
Publication date | 2016 |
Article number | 97560Y |
ISBN (Electronic) | 9781628419917 |
DOIs | |
Publication status | Published - 2016 |
Event | Photonic and Phononic Properties of Engineered Nanostructures VI - The Moscone Cente, San Francisco, United States Duration: 15 Feb 2016 → 18 Feb 2016 Conference number: 6 https://spie.org/PW16O/conferencedetails/photonic-and-phononic-properties-of-engineered-nanostructures |
Conference
Conference | Photonic and Phononic Properties of Engineered Nanostructures VI |
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Number | 6 |
Location | The Moscone Cente |
Country/Territory | United States |
City | San Francisco |
Period | 15/02/2016 → 18/02/2016 |
Internet address |
Series | Proceedings of SPIE - The International Society for Optical Engineering |
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ISSN | 0277-786X |
Keywords
- Silicon photonics
- Inverse design engineering
- Topology optimization
- Polarization beam splitter