Iyo yakaderera tembiricha chikamu barium metaborate (β-BaB₂O₄, BBO kwenguva pfupi) kristaro ndeye tripartite crystal system, 3m point group. Muna 1949, Levinet al. akawana yakaderera-tembiricha chikamu barium metaborate BaB₂O₄ compound. Muna 1968, Brixneret al. yakashandiswa BaCl₂ sekuyerera kuwana pachena tsono-sekristaro imwe chete. Muna 1969, Hubner akashandisa Li₂O as flux kukura 0.5mm × 0.5mm × 0.5mm uye akayera yakakosha data ye density, maseru paramita uye nzvimbo boka. Mushure me1982, Fujian Institute of Matter Structure, Chinese Academy of Sciences yakashandisa yakanyungudutswa-munyu-mhodzi yekristaro nzira yekukura kristaro hombe mukuyerera, uye yakawana kuti BBO crystal yakanakisa ultraviolet frequency-doubling zvinhu. Yeelectro-optic Q-switching application, BBO crystal ine mhedzisiro yeyakaderera electro-optic coefficient inotungamira kune yakakwira hafu-wave voltage, asi ine mukana wakatanhamara weyakanyanya kukuvadza laser chikumbaridzo.

Iyo Fujian Institute of Matter Structure, Chinese Academy of Sciences yakaita nhevedzano yebasa pakukura kweBBO makristasi. Muna 1985, kristaro imwechete ine saizi ye φ67mm × 14mm yakakura. Saizi yekristaro yakasvika φ76mm×15mm muna 1986 uye φ120mm×23mm muna 1988.

Kukura kwemakristasi pamusoro pezvese kunotora yakanyungudutswa-munyu mhodzi-kristaro nzira (inozivikanwawo seyepamusoro-mbeu-kristaro nzira, flux-kusimudza nzira, nezvimwewo). The crystal kukura mwero muc-axis kutungamira inononoka, uye zvakaoma kuwana yakakwirira-mhando refu crystal. Uyezve, iyo electro-optic coefficient yeBBO crystal idiki, uye pfupi crystal zvinoreva yakakwirira kushanda voltage inodiwa. Muna 1995, Goodnoet al. yakashandisa BBO se electro-optic zvinhu zveEO Q-modulation yeNd: YLF laser. Saizi yeiyi BBO crystal yaive 3mm×3mm×15mm(x, y, z), uye kuchinjika modulation kwakagamuchirwa. Kunyange zvazvo urefu-hurefu hwehuwandu hweBBO iyi hunosvika ku5: 1, kota-wave voltage ichiri kusvika ku 4.6 kV, iyo inenge 5 nguva yeEO Q-modulation yeLN crystal pasi pemamiriro akafanana.

Kuti uderedze simba rekushanda, BBO EO Q-switch inoshandisa makristasi maviri kana matatu pamwe chete, izvo zvinowedzera kurasikirwa kwekuisa uye mari. Nickelet al. yakaderedza hafu-wave voltage yeBBO crystal nekuita kuti mwenje upfuure nemukiristaro kwekakati wandei. Sezvinoratidzwa mumufananidzo, laser beam inopfuura nekristaro kanomwe, uye kunonoka kwechikamu kwakakonzerwa negirazi rinoratidzira repamusoro rakaiswa pa45 ° rakabhadharwa newave-plate yakaiswa munzira yekuona. Nenzira iyi, iyo hafu-wave voltage yeiyi BBO Q-switch inogona kunge yakaderera se3.6 kV.

Mufananidzo 1. BBO EO Q-modulation ine yakaderera hafu-wave voltage - WISOPTIC

Muna 2011 Perlov et al. yakashandisa NaF se flux kukura BBO crystal nehurefu hwe50mm mukatic-axis direction, uye yakawana BBO EO device ine saizi ye5mm×5mm×40mm, uye ine optical uniformity iri nani pane 1×10⁻⁶ cm⁻¹, iyo inosangana nezvinodiwa zveEO Q-switching applications. Zvisinei, kutenderera kwekukura kweiyi nzira kunopfuura mwedzi miviri, uye mari yacho ichiri yakakwirira.

Parizvino, iyo yakaderera inoshanda EO coefficient yeBBO crystal uye kuoma kwekukura BBO nehukuru hukuru uye yemhando yepamusoro ichiri kurambidza BBO's EO Q-switching application. Nekudaro, nekuda kweiyo yakakwira laser kukuvara kwechikumbaridzo uye kugona kushanda pakakwirira kudzokorora frequency, BBO crystal ichiri rudzi rweEO Q-modulation zvinhu zvine kukosha kwakakosha uye ramangwana rinovimbisa.

Mufananidzo 2. BBO EO Q-Switch ine low half-wave voltage - Yakagadzirwa neWISOPTIC Technology Co., Ltd.