Even so, the type-I configuration was normally employed for wavelength tunability of SHG simply because LN displays an important thermo-optic birefringence with a value of around four × ten−5 K−1 at space temperature. Consequently, a temperature alter in the system would end in a substantial variation in the fabric birefringence, https://zanedtgtf.azzablog.com/32761285/5-easy-facts-about-lithium-niobate-crystal-described