Self-assembled semiconductor quantum dots (QDs) are attractive solid-state quantum light emitters (no blinking nor bleaching, high radiative yield, fast emission rate). In particular, they can be used for on-demand single-photon generation. However, the high refractive index of the semiconductor matrix surrounding the QD prevents an efficient light collection in the far-field. To overcome this limitation, one of the most powerful strategy consists in integrating the QD within a controlled electromagnetic environment, to funnel its spontaneous emission (SE) into a desired optical mode.
In this talk, I will review theoretical and experimental results obtained on fiber-like GaAs photonic wires embedding InAs QDs. These waveguide structures offer a very efficient and broadband spontaneous emission (SE) control [1,2]. Moreover, a proper tailoring of the wire ends theoretically brings the light extraction efficiency close to 100%. Using these structures, we have realized a single-photon source combining a record-high brightness with a pure single-photon emission . The perspectives opened by this work in the field of solid-state quantum optics will be discussed in the end of the talk.
 J. Bleuse et al., Phys. Rev. Lett. 106, 103601 (2011).
 M. Munsch et al., to appear in Phys. Rev. Lett.
[3 ] J. Claudon, et al., Nature Photonics 4, 174 (2010).