Design of X-Cut and Z-Cut Lithium Niobate Whispering-Gallery-Mode Disk-Resonators With High Quality Factors
oleh: Yu Pan, Guoping Lin, Souleymane Diallo, Xianmin Zhang, Yanne K. Chembo
| Format: | Article |
|---|---|
| Diterbitkan: | IEEE 2017-01-01 |
Deskripsi
We demonstrate the fabrication process of millimeter-size lithium niobate (LiNbO<inline-formula> <tex-math notation="LaTeX">$_3$</tex-math></inline-formula>) whispering-gallery-mode (WGM) disk-resonators. We fabricate both <inline-formula><tex-math notation="LaTeX">$x$</tex-math></inline-formula>- and <inline-formula> <tex-math notation="LaTeX">$z$</tex-math></inline-formula>-cut disk-resonators, starting from commercially available LiNbO<inline-formula><tex-math notation="LaTeX">$_3$</tex-math></inline-formula> disks with diameters of 12 mm and thicknesses of 1 mm. We characterize these two WGM resonators using a prism coupling configuration. We find that both resonators feature high loaded quality factors, in both cases higher than <inline-formula> <tex-math notation="LaTeX">$10^7$</tex-math></inline-formula> at 1550 nm. We also investigate the polarization and thermal effects in these disk-resonators. The design of high-<inline-formula><tex-math notation="LaTeX">$Q$</tex-math> </inline-formula> LiNbO<inline-formula><tex-math notation="LaTeX">$_3$</tex-math></inline-formula> disk-resonators with different orientations using the same platform will allow for a wide variety of potential applications in nonlinear and quantum photonics.