상세정보
학술지
Electro-optic control of the external coupling strength of a high-quality-factor lithium niobate micro-resonator
- 발행일
- 202212
- 출처
- Optics Letters, v.47 no.23, pp.6149-6152
- ISSN
- 0146-9592
- 출판사
- Optical Society of America (OSA)
- 협약과제
- 22HB2400, 단일광자 파장변환용 PPLN 광도파로 소자 개발, 주정진
- 초록
- Controlling the optical coupling between a micro-resonator and waveguide plays a key role in on-chip photonic circuits. Here, we demonstrate a two-point coupled lithium niobate (LN) racetrack micro-resonator that enables us to electrooptically traverse a full set of the zero-, under-, critical-, and over-coupling regimes with minimized disturbance of the intrinsic properties of the resonant mode. The modulation between the zero- and critical-coupling conditions cost a resonant frequency shift of only ~344.2 MHz and rarely changed the intrinsic quality (Q) factor of 4.6 × 105. Our device is a promising element in on-chip coherent photon storage/retrieval and its applications.
- KSP 제안 키워드
- Electro-Optic, High-quality, Intrinsic property, Key role, Lithium Niobate, On-chip, Optical coupling, Photonic Circuits, Quality-factor(Q-factor), Resonant frequency(Fr), Resonant frequency shift