期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 30, 期 12, 页码 1151-1154出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2018.2837061
关键词
Integrated photonics; photonic crystal waveguides; silicon photonics
资金
- National Natural Science Foundation of China [61622502, 61475052]
Thermal tuning acts as one of the most fundamental roles in integrated silicon photonics since it can provide flexibility and reconfigurability. Low tuning power and fast tuning speed are long-term pursuing goals in terms of the performance of the thermal tuning. Here, we propose and experimentally demonstrate an efficient thermal tuning scheme employing the metallic metal heater. The slow-light effect in the photonic crystal waveguide is employed to enhance the performance of the metal microheater. Meanwhile, the metal microheater is integrated on the side of the waveguide rather than on the top. Thanks to both the slow-light effect and the side-integrated microheater, the tuning efficiency is significantly enhanced, and the response time as fast as 2 mu s is obtained. Since the thermal tuning with metal heater has been widely applied in silicon photonics, the proposed scheme may provide a valuable solution towards the performance enhancement of the thermal tuning in silicon photonics.
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