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Low-power total internal reflection thermo-optic switch based on hybrid SiON-polymer X-junction waveguides.
- Source :
-
Applied optics [Appl Opt] 2018 Nov 20; Vol. 57 (33), pp. 9809-9813. - Publication Year :
- 2018
-
Abstract
- We propose and demonstrate a low-power 2×2 total internal reflection thermo-optic switch based on an X-junction configuration formed with a silicon oxynitride (SiON) core and polymer cladding. Unlike X-junctions reported thus far, our proposed configuration features a slot formed on the center of the X-junction and filled with polymer cladding. With such a configuration, the opposite thermo-optic characteristics of SiON and polymer and, hence, heat utilization efficiency can be fully utilized. Our fabricated proof-of-principle switch shows extinction ratios of larger than 15.34 dB and switching powers of less than ∼59.6 mW. The rise time and fall time of switching are 1.42 and 0.85 ms, respectively. The insertion losses are less than 10.6 dB for all channels, and the polarization-dependent loss is ∼0.3 dB.
Details
- Language :
- English
- ISSN :
- 1539-4522
- Volume :
- 57
- Issue :
- 33
- Database :
- MEDLINE
- Journal :
- Applied optics
- Publication Type :
- Academic Journal
- Accession number :
- 30462015
- Full Text :
- https://doi.org/10.1364/AO.57.009809