Description of states of two-photon interference in optical gating Michelson interferometer
Ekkarat Pongophas, Asawin Sinsarp, Sujin Suwanna, Withoon Chunwachirasiri, Wisit Singhsomroje · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2015
The interference of two photons in the optical gating Michelson interferometer is investigated. The phenomenon is studied using two different representations of photons: the space-time domain and a step-by-step two photon state evolution. Both representations lead to an equivalent description of the two-photon states which is the interference of four cases of two-photon traveling states, as implied by the evolution analysis. Additionally, the space-time domain analysis reveals that the classical interference of high-intensity light source is identical to the two-photon interference in the quantum regime except for a multiplicative factor of (n 2), where n is the number of photons.