| Autor: |
Liucun Li, Takemasa Tamanuki, Toshihiko Baba |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Optics express. 30(23) |
| ISSN: |
1094-4087 |
| Popis: |
We propose and demonstrate a simple all-optic control for Si photonics using a photo-thermal heater. The control light is absorbed in a heavily doped control waveguide and the signal light phase is tuned through thermal diffusion in a signal waveguide adjacent to but not optically coupled with the control waveguide. We designed and fabricated Mach–Zehnder- and microring-type devices requiring 17 (π-phase shift) and 4 (switching between resonance and non-resonance with 6 dB extinction) mW of control power, respectively. We confirmed that the heating efficiency of all-optic control exceeded that of an electrical heater placed above the signal waveguide. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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