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Greater than one billion Q factor for on-chip microresonators
- Source :
- Optics Letters; September 2020, Vol. 45 Issue: 18 p5129-5131, 3p
- Publication Year :
- 2020
-
Abstract
- High optical quality (Q) factors are critically important in optical microcavities, where performance in applications spanning nonlinear optics to cavity quantum electrodynamics is determined. Here, a record Q factor of over 1.1 billion is demonstrated for on-chip optical resonators. Using silica whispering-gallery resonators on silicon, Q-factor data is measured over wavelengths spanning the C/L bands (100 nm) and for a range of resonator sizes and mode families. A record low sub-milliwatt parametric oscillation threshold is also measured in 9 GHz free-spectral-range devices. The results show the potential for thermal silica on silicon as a resonator material.
Details
- Language :
- English
- ISSN :
- 01469592 and 15394794
- Volume :
- 45
- Issue :
- 18
- Database :
- Supplemental Index
- Journal :
- Optics Letters
- Publication Type :
- Periodical
- Accession number :
- ejs54187264