Noise Analysis of Second-Harmonic Generation in Undoped and MgO-Doped Periodically Poled Lithium Niobate

Figure 9

(a) (b) Noise characteristics of SHG in MgO-doped PPLN waveguide with and without 532 nm irradiation. (c) (d) The normalized frequency spectra corresponding to the temporal traces in (a) and (b).

(a)

(b)

(c)

(d)