We present a new compact fiber optical system which together with a high brightness single-photon source facilitates the generation of many photon entangled states. This configuration presents a proof of principle for generating states of any number of photons. Generating multi-photon polarization entangled states is one of the main goals of optical quantum technology as these states are a key resource for quantum computation[1]. Notoriously, creating entangled states with larger and larger photon numbers is difficult and complex. This is a result of the non-deterministic emission of current photon sources, different photon source distinguishability and the scalability of such current schemes. Our previous work[2] presented a solution for these using a probabilistic single photon source.

In this work, utilizing a single semi-conductor quantum dot in an electrically controlled cavity as a deterministic high brightness single-photon source[3] we use a specially fabricated compact fiber optical system to facilitate entanglement of consecutive photons. Two-photon entanglement measurements for the

|Φ+) 1/√2(|hh>+eiφ|vv)) in the |p), |m) =1/√2(|h) ± |v)) basis achieved a visibilty of more than 70%.
Applying background reduction, two-photon visibilities of over 90% were reached. Similarly, background reduced three-photon entanglement measurements show visibilities of over 85%.