title: Integrated high-quality factor optical resonators in diamond.
abstract: The realization of an integrated diamond photonic platform, based on a thin single crystal diamond film on top of a silicon dioxide/silicon substrate, is reported. Using this approach, we demonstrate high-quality factor single crystal diamond race-track resonators, operating at near-infrared wavelengths (1550 nm). The devices are integrated with low-loss diamond waveguides terminated with polymer pads (spot size converters) to facilitate in- (out-) coupling of light from (to) an optical fiber. Optical characterization of these resonators reveal quality factors as high as ~250,000 and overall insertion losses as low as 1 dB/facet. Scattering induced mode splitting as well as signatures of nonlinear effects such as optical bistability are observed at an input pump power of ~100 mW in the waveguides.
authors: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
authors: B J M
authors: BJ
authors: Hausmann
authors: I B
authors: IB
authors: Bulu
authors: P B
authors: PB
authors: Deotare
authors: M
authors: M
authors: McCutcheon
authors: V
authors: V
authors: Venkataraman
authors: M L
authors: ML
authors: Markham
authors: D J
authors: DJ
authors: Twitchen
authors: M
authors: M
authors: Lončar