Alignment-tolerant hybrid integration of a diamond quantum sensor on a silicon nitride photonic waveguide
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2025-04-11 |
| Journal | Optics Express |
| Authors | Kosuke Takada, Ryota Katsumi, K. Kawai, Daichi Sato, Takashi Yatsui |
| Citations | 1 |
Abstract
Section titled âAbstractâHybrid-integrated photonic circuits play a crucial role in recent quantum technologies. However, deterministic and alignment-tolerant methods are still lacking, and their development is crucial for accelerating the scalable fabrication of quantum systems. In this study, we demonstrate alignment-tolerant coupling between diamond and silicon nitride waveguides using the deterministic transfer-printing method. To validate this approach, we also demonstrate the capability of on-chip quantum sensing using nitrogen vacancy centers in diamond waveguides. These results pave the way for compact packaging of highly sensitive quantum sensors based on photonic integrated circuits.