Ọdịdị kristal nke lithium tantalate (LiTaO₃, LT maka mkpụmkpụ) yiri LN crystal, bụ nke cubic crystal usoro, 3m otu isi, R3c otu oghere. LT kristal nwere ezigbo piezoelectric, ferroelectric, pyroelectric, acousto-optic, electro-optic and nononlinear optical properties. LT kristal nwekwara ihe anụ ahụ na kemịkalụ kwụsiri ike, dị mfe ịnweta nnukwu nha yana otu kristal dị elu. Ọnụ ụzọ mmebi laser ya dị elu karịa kristal LN. Ya mere, ejirila LT kristal mee ihe n'ime ngwaọrụ ebili mmiri dị elu.

 Kristal LT a na-ejikarị eme ihe, dị ka kristal LN, na-eto ngwa ngwa site na usoro Czochralski na platinum ma ọ bụ iridium crucible site na iji oke lithium-erughị eru nke ihe mejupụtara mmiri siri ike. N'afọ 1964, Bell Laboratories nwetara otu kristal LT, na 2006, Ping Kang toro kristal 5-inch nke LT.et al.

 Na ngwa nke electro-optic Q-modulation, LT crystal dị iche na LN crystal na ya γ.₂₂ dị nnọọ obere. Ọ bụrụ na ọ nakweere usoro nke ọkụ na-agafe n'akụkụ axis anya na ntụgharị ntụgharị nke yiri LN crystal, voltaji na-arụ ọrụ ya karịrị ugboro 60 nke kristal LN n'okpuru otu ọnọdụ ahụ. Ya mere, mgbe LT kristal na-eji dị ka electro-optic Q-modulation, ọ nwere ike na-anakwere okpukpu abụọ crystal dakọtara Ọdịdị yiri RTP kristal na x-axis dị ka ìhè ntụziaka na y-axis dị ka ọkụ eletrik ntụziaka, na-eji ya nnukwu electro-optic. ọnụọgụgụ γ₃₃ na γ₁₃. Ihe ndị dị elu chọrọ na njiri anya ngwa anya na igwe nke kristal LT na-egbochi ngwa ya nke electro-optic Q-modulation.

LT (LiTaO3) kristal-WISOPTIC