Figure 1
From: Hanbury Brown-Twiss effect without two-photon interference in photon counting regime
Experimental setup for measuring HBT effect without two-photon interference. Laser 1 and 2 are single-mode continuous-wave He-Ne lasers. HWP is a half wave plate. PWF is the single mode polarization-maintaining fiber. P 1 and P 2 are two polarizers, which are employed to keep the polarizations of two beams orthogonal. PBS1 and PBS2 are two polarization beam splitters. Two beams are combined into one beam at PBS1 and the combined beam is focused by the lens (L) on the rotating ground glass plate (RGGP). PBS2 splits the combined beam into two beams of light. MMF is the multi-mode fiber, which are employed to collect photons and transfer light to two single-photon detectors. It is measured by a HBT intensity interferometer.
