The scaling of many photonic quantum information processing systems is ultimately limited
by the flux of quantum light throughout an integrated photonic circuit. Source brightness and …

The interaction of light with a single two-level emitter is the most fundamental process in
quantum optics, and is key to many quantum applications. As a distinctive feature, two …

Spectral filtering of resonance fluorescence is widely employed to improve single photon
purity and indistinguishability by removing unwanted backgrounds. For filter bandwidths …

An emission wavelength around 1550 nm (telecom C-band) is highly appealing for
nonclassical light sources, among others, due to the absorption minimum in standard glass …

We introduce the gapped coherent state in the form of a single-photon source (SPS) that
consists of uncorrelated photons as a background, except that we demand that no two …

Controlling the photon statistics of light is paramount for quantum science and technologies.
Recently, we demonstrated that transmitting resonant laser light past an ensemble of two …

We present a frequency-filtering method for measuring and calculating frequency-filtered
photon correlations. This method is a cavity-based system we call the multimode array filter …

Resonance fluorescence from atomic systems consists of a single spectral peak that evolves
into a Mollow triplet for a strong excitation field. Photons from different peaks of the triplet …

We observe that a weak guided light field transmitted through an ensemble of atoms
coupled to an optical nanofiber exhibits quadrature squeezing. From the measured …

Quantum networks have the potential to transform secure communication via quantum key
distribution and enable novel concepts in distributed quantum computing and sensing …