Ọnọdụ okpomọkụ dị ala barium metaborate (β-BaB₂O₄, BBO maka mkpụmkpụ) kristal bụ nke sistemu kristal tripartite, 3m otu isi. Na 1949, Levinet al. achọpụtara obere okpomọkụ oge barium metaborate BaB₂O₄ ngwakọta. N'afọ 1968, Brixneret al. eji BaCl₂ dị ka mgbanwe iji nweta agịga na-apụtaghị ìhè dị ka otu kristal. Na 1969, Hubner ji Li₂O dị ka flux na-eto eto 0.5mm × 0.5mm × 0.5mm na tụrụ ndị bụ isi data nke njupụta, cell parameters na ohere otu. Mgbe 1982 gasịrị, Fujian Institute of Matter Structure, Chinese Academy of Sciences ji usoro mkpụrụ-crystal nke a wụrụ awụ na-eto nnukwu otu kristal na flux, wee chọpụta na kristal BBO bụ ezigbo ultraviolet ugboro ugboro. Maka ngwa mgbanwe Q-electro-optic, kristal BBO nwere mbelata nke ọnụọgụ electro-optic dị ala nke na-eduga na voltaji dị elu nke ọkara, mana ọ nwere uru pụtara ìhè nke oke mmebi laser dị elu.

Fujian Institute of Matter Structure, Chinese Academy of Sciences emewo usoro ọrụ na uto nke kristal BBO. Na 1985, otu kristal nwere nha nke φ67mm × 14mm toro. Nha kristal ruru φ76mm × 15mm na 1986 na φ120mm × 23mm na 1988.

Uto nke kristal n'elu ihe niile na-agbaso usoro mkpụrụ-nnu a wụrụ awụ - kristal (nke a makwaara dị ka usoro mkpụrụ-kristal, usoro mbuli elu, wdg). Ọnụego uto kristal n'imec-axis direction bụ ngwa ngwa, na ọ na-esi ike nweta elu-edu ogologo kristal. Ọzọkwa, ọnụọgụ electro-optic nke kristal BBO dị ntakịrị, yana kristal dị mkpụmkpụ pụtara voltaji na-arụ ọrụ dị elu achọrọ. Na 1995, Goodnoet al. eji BBO dị ka ihe electro-optic maka EO Q-modulation nke Nd: YLF laser. Nha nke kristal BBO a bụ 3mm × 3mm × 15mm (x, y, z), na transverse modulation a nakweere. Ọ bụ ezie na ogologo ịdị elu nke BBO a ruru 5: 1, voltaji nkeji anọ ka dị ruo 4.6 kV, nke bụ ihe dị ka ugboro 5 nke EO Q-modulation nke LN crystal n'okpuru otu ọnọdụ ahụ.

Iji belata voltaji arụ ọrụ, BBO EO Q-switch na-eji kristal abụọ ma ọ bụ atọ ọnụ, nke na-abawanye ụba ntinye na ọnụ ahịa. Nickelet al. belata ọkara ebili mmiri nke kristal BBO site n'ime ka ọkụ gafere na kristal ruo ọtụtụ oge. Dị ka egosiri na ọnụ ọgụgụ a, eriri laser na-agafe na kristal ugboro anọ, na nkwụsị oge nke enyo dị elu nke a na-etinye na 45 ° na-akwụ ụgwọ site na efere-efegharị nke etinyere n'okporo ụzọ anya. N'ụzọ dị otú a, ọkara-ebili mmiri voltaji nke a BBO Q-switch nwere ike ịdị ala ka 3.6 kV.

Ọgụgụ 1. BBO EO Q-modulation na obere voltaji ọkara-ebili mmiri - WISOPTIC

N'afọ 2011, Perlov et al. ejiri NaF mee ihe ka ọ na-eto eto kristal BBO nwere ogologo 50mm inc-axis direction, na nwetara BBO EO ngwaọrụ na size nke 5mm × 5mm × 40mm, na na ngwa anya uniformity mma karịa 1 × 10.^-6 cm^-1, nke na-emezu ihe achọrọ nke EO Q-switching ngwa. Otú ọ dị, usoro ọganihu nke usoro a karịrị ọnwa 2, ma ọnụ ahịa ya ka dị elu.

Ka ọ dị ugbu a, ọnụ ọgụgụ EO dị ala dị ala nke kristal BBO na ihe isi ike nke itolite BBO nwere nnukwu nha na ịdị elu dị elu ka na-egbochi ngwa BBO EO Q-switching. Agbanyeghị, n'ihi ọnụ ụzọ mmebi laser dị elu na ikike ịrụ ọrụ na ugboro ugboro ugboro ugboro, kristal BBO ka bụ ụdị EO Q-modulation ihe nwere uru dị mkpa na ọdịnihu na-ekwe nkwa.

Ọnụ ọgụgụ 2. BBO EO Q-Switch na obere voltaji ọkara-ebili mmiri - Mere site na WISOPTIC Technology Co., Ltd.