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Figure 1

From: Frequency and polarization emission properties of a photon-pair source based on a photonic crystal fiber

Figure 1

Experimental setup. SFWM photon pair source implemented in a polarization maintaining photonic crystal fiber (a). Spectrally-resolved photon counting scheme with spectral resolution for idler (visible) (b) and signal (infrared) modes (c). Spectrally-resolved coincidence-photon counting scheme, showing spectral resolution for the idler mode (d). Scanning electron microscope (SEM) micrograph of the fiber profile; for the chosen reference system the slow axis coincides with the horizontal axis, while the fast axis corresponds to the vertical axis (e).

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