Electrically driven telecommunication wavelength single-photon source Available to Purchase

An electrically driven $∼1.3μm$ single-photon source is demonstrated. The source contains InAs quantum dots within a planar cavity light-emitting diode. Electroluminescence (EL) spectra show clear emission lines and from time resolved EL we estimate a primary decay time of $∼1ns$⁠. Time-varying Stark shifts are studied and proposed for truncating the emission in jitter-sensitive applications (optimization for $2ns$ detector gate width demonstrated) and for relaxing excitation pulse-length requirements. A correlation measurement demonstrates suppression of multiphoton emission to below 28% of the Poissonian level before correction for detector dark counts, suggesting $g(2)(0)∼0.19$ for the source itself.