… -photonic crossings. While these solutions can be employed to integrate photonic circuits …
cluding routing of single photons from quantum dots [14], chip-scale LiDAR solutions [6, 15], …

… of parametric down-conversion. Superimposing one single … for photons exiting a multiport
linear-optical circuit is related to the permanent of a matrix associated with the quantum circuit. …

… pairs can be typically achieved by spontaneous parametric down-conversion (SPDC) in …
polarization-entangled photon pairs. Exploiting femtosecond-laser-written photonic circuits, we …

… potential for integration into more complex photonic and electronic circuits, where it could
be one component in a quantum relay device or a single photon router. As crystalline silicon …

… of transmission in a photonic circuit can be several orders of … , without optoelectronic and
electrooptic conversions, will be a … In the following chapters, we describe the photons and their …

… of photonic matrix multiplication, mainly including the plane light conversion method, Mach–…
, and the MVM was implemented efficiently in photonic circuits by an MZI mesh 71 . However…

… Such photon recycling increases the effective excess … conversion efficiency. Herein, a back
surface reflector underneath a GaAs/AlGaAs rear‐heterojunction structure leverages photon …

… GaAs photonic circuits for the manipulation of single-photon and two-photon states. Two-…
for the generation of photon pairs via spontaneous parametric down conversion (SPDC) and …

… Hybrid photonic devices … of photonic circuits that include light generation, guiding, modulation,
and detection. For example, the integration of silicon photonic circuits with single photon …

… the development of coherent microwave to optical photon conversion. Transition from the lab
to … to produce Si3N4-based photonic circuits with integrated singlephoton sources based on …