Figure 1 | Scientific Reports

Figure 1

From: Polarization-entangled photon pair sources based on spontaneous four wave mixing assisted by polarization mode dispersion

Figure 1

(a) The two orthogonally pumped SFWM processes that drive the entanglement generation. (b) A cross section of a deeply etched AlGaAs polarization-entangled photon pair source, detailing the materials composing the structure. (c) and (d) The dispersion coefficients k (2) of the TE and TM waveguide modes. The zero-dispersion wavelength near 1,550 nm is achieved for the TE mode of the waveguide width of 700 nm.

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