| 학회 | 한국재료학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 삼척 쏠비치 호텔&리조트) |
| 권호 | 25권 2호 |
| 발표분야 | 특별심포지엄5. 초고속 저전력 광 데이터 처리용 소자 심포지엄-오거나이저:송용원(KIST) |
| 제목 | Nanolaser implanted silicon photonics |
| 초록 | Integrating III-V lasers on silicon has provided a promising route to overcoming the critical issue of light generation in silicon-based optical circuits. Recent III-V/Si hybrid laser platforms using wafer bonding and direct growth methods have attracted much attention. However, integrating the small III-V nanolasers onto Si photonics is still challenging due to the inefficient coupling with silicon photonics and the difficulty of nanofabrication. In this work, we propose and demonstrate direct integration of a wavelength-scale III-V nanolaser onto a silicon-on-insulator (SOI) waveguide. By employing the high-precision micro-transfer printing techniques with an optimally designed photonic crystal nanolaser structure, we experimentally achieved a coupling efficiency of 83% between the InGaAsP nanobeam laser and the SOI waveguide. Our III-V nanobeam laser has an asymmetric one-dimensional photonic crystal cavity that allows uni-directional coupling to the combined III-V nanobeam waveguide with high efficiency. Through the optimized 3.2-μm-long vertical coupler in the region where III-V and SOI waveguides overlap, 88% of the light from the III-V nanolaser can theoretically be coupled to an integrated SOI waveguide. |
| 저자 | 김명기 |
| 소속 | 고려대 |
| 키워드 | silicon photonics; III−V/Si integration; nanolasers; photonic crystals; silicon waveguides; photonic integrated circuits |
