428971.fig.008a
(a)
428971.fig.008b
(b)
428971.fig.008c
(c)
428971.fig.008d
(d)
Figure 8: (a) (b) Noise characteristics of SHG in undoped PPLN waveguide with and without 532 nm irradiation. (c) (d) The normalized frequency spectra corresponding to the temporal traces in (a) and (b).