Mu 1976, Zumsteg ndi al. adagwiritsa ntchito njira ya hydrothermal kukulitsa rubidium titanyl phosphate (RbTiOPO₄, wotchedwa RTP) crystal. The RTP crystal ndi orthorhombic system, mm2 point group, P_{n / A21} gulu la mlengalenga, lili ndi ubwino wambiri wa electro-optical coefficient, high light light threshold, low conductivity, wide transmission range, non-deliquescent, low insertion loss, and angagwiritsidwe ntchito kubwerezabwereza pafupipafupi ntchito (mpaka 100) kHz), ndi zina. Ndipo sipadzakhala zizindikiro zotuwira pansi pa kuwala kwamphamvu kwa laser. M'zaka zaposachedwa, chakhala chinthu chodziwika bwino pokonzekera ma electro-optic Q-switches, makamaka oyenera machitidwe apamwamba a laser obwerezabwereza..

Zopangira za RTP zimawola zikasungunuka, ndipo sizingakulitsidwe ndi njira zanthawi zonse zosungunulira. Kawirikawiri, ma fluxes amagwiritsidwa ntchito kuchepetsa kusungunuka. Chifukwa cha kuwonjezera kuchuluka kwa flux mu zopangira, izo’Ndizovuta kwambiri kukulitsa RTP yokhala ndi kukula kwakukulu komanso kwapamwamba. Mu 1990, Wang Jiyang ndi ena adagwiritsa ntchito njira yodzipangira okha kuti apeze kristalo wopanda mtundu, wathunthu komanso wofanana wa RTP wa 15. mm×44 mm×34 mm, ndipo adachita kafukufuku wokhazikika pakuchita kwake. Mu 1992 Oseledchikndi al. adagwiritsa ntchito njira yofananira yodzithandizira kuti akule makhiristo a RTP okhala ndi kukula kwa 30 mm×40 mm×60 mm ndi kuchuluka kwa laser kuwonongeka. Mu 2002 Kannan ndi al. adagwiritsa ntchito pang'ono MoO₃ (0.002 mol%) monga kusinthasintha mu njira yambewu yapamwamba kuti ikule makhiristo apamwamba a RTP okhala ndi kukula pafupifupi 20 mm. Mu 2010 Roth ndi Tseitlin adagwiritsa ntchito [100] ndi [010] mbewu zowongolera, motsatana, kukulitsa RTP yayikulu pogwiritsa ntchito njere zapamwamba.

Poyerekeza ndi makhiristo a KTP omwe njira zake zokonzekera ndi mawonekedwe a electro-optical ndi ofanana, kukana kwa makristalo a RTP ndi ma 2 mpaka 3 oda za kukula kwake (10).⁸ Ω·cm), kotero makhiristo a RTP atha kugwiritsidwa ntchito ngati EO Q-kusintha ntchito popanda vuto la kuwonongeka kwa electrolytic. Mu 2008, Shaldinndi al. adagwiritsa ntchito njira yambewu yapamwamba kuti akule kristalo wamtundu umodzi wa RTP wokhala ndi resistivity pafupifupi 0.5×10¹² Ω·cm, zomwe zimapindulitsa kwambiri ma EO Q-switches okhala ndi kabowo kakang'ono kowoneka bwino. Mu 2015 Zhou Haitaondi al. adanenanso kuti makhiristo a RTP okhala ndi a-axis kutalika kuposa 20 mm adakula ndi njira ya hydrothermal, ndipo resistivity inali 10¹¹~10¹² Ω·cm. Popeza kristalo wa RTP ndi biaxial crystal, ndi yosiyana ndi LN crystal ndi DKDP crystal ikagwiritsidwa ntchito ngati EO Q- switch. RTP imodzi mwa awiriwo iyenera kuzunguliridwa 90°ku mbali ya kuwala kuti abwezere kwa birefringence zachilengedwe. Kukonzekera kumeneku sikungofuna kufanana kwakukulu kwa kristalo wokha, komanso kumafunika kutalika kwa makhiristo awiri kuti akhale pafupi kwambiri, kuti apeze chiŵerengero chapamwamba cha kutha kwa Q-switch.

Monga zabwino kwambiri EO Q-switchndi zakuthupi ndi kubwereza pafupipafupi, RTP crystals malinga ndi malire a kukula kwake zomwe sizingatheke kwa wamkulu pobowo bwino (pobowo pazipita malonda malonda ndi 6 mm okha). Choncho, kukonzekera RTP makhiristo ndi kukula kwakukulu ndi khalidwe lapamwamba komanso kufanana luso za RTP awiriawiri akufunikabe kuchuluka kwa ntchito yofufuza.