Entangled photon sources are fundamental building blocks for quantum communication and quantum networks. Recently, silicon carbide emerged as a promising material for integrated quantum devices since it is CMOS compatible with favorable mechanical, electrical and photonic properties. In this work, we report the progress on the entangled photon pair generation at the telecom wavelength (1550 nm), which is achieved by implementing the spontaneous four-wave mixing process in a compact silicon carbide microring resonator. We will present the design principle, experimental set-up, and results of this work.
Third-order nonlinearity is the dominant nonlinear response in centrosymmetric materials such as silicon, silicon dioxide and silicon nitride. To enhance light-matter interactions, high Q microresonators can be employed. In this talk, we will discuss the use of third-order nonlinearity in high Q silicon nitride microresonators for several important applications. The first example is focused on the design and demonstration of octave-spanning frequency combs. Optimized dispersion design not only allows us to obtain an octave span of spectrum (1um to 2um), but also enables two harmonically linked dispersive wave emission which is particularly useful for frequency self-referencing. In the second example, we shift our focus from the classical domain to the quantum domain, where quantum states of light and quantum frequency conversion are both achieved by the same third-order nonlinearity of SiN. Specifically, one photon from a quantum-correlated microresonator photon pair source is frequency shifted by four-wave mixing Bragg scattering in a second microresonator, without degrading the level of quantum correlation. With the developed technologies, we demonstrate tunable quantum interference of the initially non-degenerate photons comprising the pair, and observe the quantum beat of single photons as the photon frequencies are tuned across each other. Our work showcases the versatility of the nanophononics for both classical and quantum information processing.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.