Photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide.
| Autor: | Shi J; Faculty of Physical Sciences and Engineering, Building 53, University of Southampton, Southampton, UK. sjxsoton@gmail.com., Pollard ME; School of Photovoltaic and Renewable Energy Engineering, Tyree Energy Technologies Building, UNSW Australia, Sydney, Australia., Angeles CA; Faculty of Physical Sciences and Engineering, Building 53, University of Southampton, Southampton, UK., Chen R; Faculty of Physical Sciences and Engineering, Building 53, University of Southampton, Southampton, UK., Gates JC; Faculty of Physical Sciences and Engineering, Building 53, University of Southampton, Southampton, UK., Charlton MDB; Faculty of Physical Sciences and Engineering, Building 53, University of Southampton, Southampton, UK. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Scientific reports [Sci Rep] 2017 May 12; Vol. 7 (1), pp. 1812. Date of Electronic Publication: 2017 May 12. |
| DOI: | 10.1038/s41598-017-01842-w |
| Abstrakt: | Coupling between free space components and slab waveguides is a common requirement for integrated optical devices, and is typically achieved by end-fire or grating coupling. Power splitting and distribution requires additional components. Usually grating couplers are used in combination with MMI/Y-splitters to do this task. In this paper, we present a photonic crystal device which performs both tasks simultaneously and is able to couple light at normal incidence and near normal incidence. Our approach is scalable to large channel counts with little impact on device footprint. We demonstrate in normal incidence coupling with multi-channel splitting for 785 nm light. Photonic crystals are etched into single mode low refractive index SiON film on both SiO |
| Databáze: | MEDLINE |
| Externí odkaz: |
|