Qhov kub tsis tshua muaj theem barium metaborate (β-BaB₂O₄, BBO luv luv) Crystal belongs rau lub tripartite crystal system, 3m pawg point. Xyoo 1949, Levinua al. nrhiav pom cov theem qis-kub barium metaborate BaB₂O₄ compound. Xyoo 1968, Brixnerua al. siv BaCl₂ raws li flux kom tau pob tshab koob zoo li ib qho siv lead ua. Xyoo 1969, Hubner siv Li₂O raws li flux kom loj hlob 0.5mm × 0.5mm × 0.5mm thiab ntsuas cov ntaub ntawv yooj yim ntawm qhov ntom, cell tsis thiab qhov chaw pab pawg. Tom qab xyoo 1982, Fujian Institute of Matter Structure, Suav Academy ntawm Kev Tshawb Fawb tau siv cov txheej txheem molten-ntsev-crystal kom loj hlob ib leeg siv lead ua hauv flux, thiab pom tias BBO siv lead ua yog cov khoom siv ultraviolet zaus-ob npaug. Rau electro-optic Q-switching daim ntawv thov, BBO siv lead ua muaj qhov tsis zoo ntawm qhov tsis tshua muaj hluav taws xob-optic coefficient uas ua rau muaj qhov hluav taws xob ib nrab-yoj, tab sis nws muaj txiaj ntsig zoo ntawm kev puas tsuaj laser siab heev.

Lub koom haum Fujian ntawm Matter Structure, Suav Academy ntawm Sciences tau ua ntau txoj haujlwm ntawm kev loj hlob ntawm BBO crystals. Xyoo 1985, ib qho siv lead ua uas loj ntawm φ67mm × 14mm tau loj hlob. Cov siv lead ua loj mus txog φ76mm × 15mm hauv xyoo 1986 thiab φ120mm × 23mm hauv xyoo 1988.

Txoj kev loj hlob ntawm cov muaju saum toj no txhua tus siv molten-ntsev noob-crystal txoj kev (tseem hu ua saum-noob-crystal method, flux-lifting method, thiab lwm yam). Crystal loj hlob tus nqi nyob rau hauv lubc-axis kev taw qhia yog qeeb, thiab nws yog ib qho nyuaj kom tau txais high-zoo siv lead ua ntev. Ntxiv mus, electro-optic coefficient ntawm BBO siv lead ua yog me me, thiab siv lead ua luv luv txhais tau tias yuav tsum muaj qhov ua haujlwm siab dua. Xyoo 1995, Goodnoua al. siv BBO ua cov khoom siv electro-optic rau EO Q-modulation ntawm Nd: YLF laser. Qhov loj ntawm no BBO siv lead ua yog 3mm × 3mm × 15mm (x, y, z), thiab transverse modulation tau txais yuav. Txawm hais tias qhov ntev-qhov siab ntawm qhov BBO no nce mus txog 5: 1, lub quarter-yoj voltage tseem mus txog 4.6 kV, uas yog kwv yees li 5 npaug ntawm EO Q-modulation ntawm LN siv lead ua nyob rau hauv tib lub sijhawm.

Txhawm rau txo qhov kev khiav hauj lwm voltage, BBO EO Q-hloov siv ob lossis peb lub pob zeb ua ke, uas ua rau muaj kev nkag siab ntxiv thiab nqi. Nickelua al. txo qis ib nrab-yoj voltage ntawm BBO siv lead ua los ntawm kev ua kom lub teeb hla dhau ntawm cov siv lead ua rau ob peb zaug. Raws li pom nyob rau hauv daim duab, lub laser beam hla dhau cov siv lead ua rau plaub zaug, thiab lub sij hawm ncua sij hawm tshwm sim los ntawm lub siab reflection daim iav tso rau ntawm 45 ° yog compensated los ntawm yoj-phaj muab tso rau hauv txoj kev kho qhov muag. Los ntawm txoj kev no, ib nrab-yoj voltage ntawm no BBO Q-hloov yuav qis li 3.6 kV.

Daim duab 1. BBO EO Q-modulation nrog tsawg ib nrab-yoj voltage - WISOPTIC

Nyob rau hauv 2011 Perlov ua al. siv NaF li flux loj hlob BBO siv lead ua nrog ntev ntawm 50mm nyob rau hauvc-axis kev taw qhia, thiab tau txais BBO EO ntaus ntawv nrog qhov loj ntawm 5mm × 5mm × 40mm, thiab nrog optical uniformity zoo dua 1 × 10^-6 cm^-1, uas ua tau raws li cov cai ntawm EO Q-switching daim ntawv thov. Txawm li cas los xij, kev loj hlob ntawm txoj kev no yog ntau tshaj 2 lub hlis, thiab tus nqi tseem siab.

Tam sim no, tsis tshua muaj txiaj ntsig EO coefficient ntawm BBO siv lead ua thiab qhov nyuaj ntawm kev loj hlob BBO nrog qhov loj me thiab zoo tseem txwv BBO's EO Q-hloov daim ntawv thov. Txawm li cas los xij, vim tias qhov kev puas tsuaj ntawm laser siab thiab muaj peev xwm ua haujlwm ntawm kev rov ua haujlwm ntau zaus, BBO siv lead ua tseem yog ib hom EO Q-modulation cov khoom uas muaj nqi tseem ceeb thiab kev cog lus rau yav tom ntej.

Daim duab 2. BBO EO Q-Hloov nrog qis ib nrab-yoj voltage - Ua los ntawm WISOPTIC Technology Co., Ltd.