Typically, the development of WGM microresonators for integrated lithium niobate photonics is accompanied by the advance of your LNOI planning approach. While in the early phase, z-cut LN movies had been usually chosen as a result of the restrictions of lithographic procedures. can be consulted in Appendix B in [19]. https://franciscoduhsf.atualblog.com/38815596/the-greatest-guide-to-lithium-niobate-crystal