FIG 1 (IMAGE) Compuscript Ltd Caption Fig. 1. (a) Geometric of the prepared Z-cut PPMgLN waveguide with a poling period of 10.2 μm, where w= 11.2 μm, h1 = 10.9 μm, h2 = 0.5 μm, and θ = 75.1°. (b) Characteristic mode profiles of the SFG light at 25°C, described by the y-component of the electric field, where the arrows indicate directions of the electric field; (c) effective indices for the TM modes of the SFG light, as the functions of the waveguide temperature; (d–f) theoretical conversion efficiencies (CEs) by coupling among TM00, TM01, TM10, and TM11 modes of the high-intensity pump and signal lights for the SFG lights with (d) TM00, (e) TM01, and (f) TM10 modes, respectively; (g) predicted temperature conditions for producing the TM00 (F00, cyan area), TM10 (F10, red area), and TM01(F01, blue area) modes of the SFG light by comparing the maximum CE. Credit OES Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.