On-chip deterministic arbitrary-phase-controlling
Rui Ma, Chu Li, Qiuchen Yan, Xinyi Wang, Ruiqi Wang, Yufei Wang, Yumeng Chen, Yan Li, Cuicui Lu, Jianwei Wang, Xiaoyong Hu, Che Ting Chan, Qihuang Gong
TL;DR
This paper introduces a new method for controlling light phases on chips, enabling better performance in photonic circuits and quantum computing.
Contribution
A three-waveguide coupled configuration enables deterministic arbitrary-phase-controlling on chips.
Findings
The method achieves phase control ranging from 0 to 2π.
Quantum gate operations were successfully realized using the proposed strategy.
Silicon-based phase control was verified in the optical communication range.
Abstract
The stable on-chip deterministic arbitrary-phase-controlling of signal light in micro/nanometer spatial scale is an extremely important basis for large-scale and high-density integrated photonic information processing chips. Conventional phase-controlling methods face with serious limitation of unavoidable crosstalk, length distortion, and fabrication error. To date, it is still a great challenge to achieve deterministic and wide-range on-chip arbitrary-phase-controlling. Here, we report an effective strategy of three-waveguide coupled configuration to realize on-chip deterministic arbitrary-phase-controlling (ranging from 0 to 2π) by combing the dynamic phase and the geometric phase. Based on this strategy, quantum gate operations in an optical permutation-group circuit are successfully realized in femtosecond-laser direct writing sample. To extend the feasibility of this method,…
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Taxonomy
TopicsNeural Networks and Reservoir Computing · Photonic and Optical Devices · Advanced Fiber Laser Technologies