APE Angewandte Physik & Elektronik GmbH was founded in 1992 and employs about 70 people at present. Headquartered in Berlin, APE is a worldwide leading supplier in the field of ultrashort laser pulse diagnostics and tunable wavelength conversion. Today, the APE repertoire encompasses a large range of nonlinear optics equipment, from spectrometers to harmonic generators, from pulse compressors to quantum-dot single photon generation sources.