{"product_id":"co-spinel-passive-q-switch-crystal","title":"Co:Spinel Crystal - Passive Q-Switch for 1.54μm Lasers","description":"\u003ch2\u003eCo:Spinel Passive Q-Switch Crystal\u003c\/h2\u003e\n\n\u003cp\u003e\nCo:Spinel (Cobalt-doped Magnesium Aluminate Spinel, Co:MgAl\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e4\u003c\/sub\u003e) is an effective passive Q-switch crystal widely used for eye-safe and near-infrared laser systems. It provides strong saturable absorption around the 1.5–1.6 μm wavelength range and is commonly used with Er:glass, Er:YAG, and other erbium-based laser sources.\n\u003c\/p\u003e\n\n\u003cp\u003e\nCompared with traditional passive Q-switch materials, Co:Spinel offers high optical damage threshold, good thermal and chemical stability, and reliable performance in compact laser designs. It is especially suitable for pulsed eye-safe laser applications, laser rangefinders, LIDAR systems, medical lasers, and scientific research systems.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEffective passive Q-switch for 1.5–1.6 μm laser systems\u003c\/li\u003e\n  \u003cli\u003eHigh optical damage threshold\u003c\/li\u003e\n  \u003cli\u003eExcellent thermal and chemical stability\u003c\/li\u003e\n  \u003cli\u003eSuitable for compact and rugged laser designs\u003c\/li\u003e\n  \u003cli\u003eLow insertion loss and reliable saturable absorption performance\u003c\/li\u003e\n  \u003cli\u003eCustom dimensions, coatings, and initial transmission available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEye-safe laser rangefinders\u003c\/li\u003e\n  \u003cli\u003eLIDAR and remote sensing systems\u003c\/li\u003e\n  \u003cli\u003eEr:glass and Er:YAG lasers\u003c\/li\u003e\n  \u003cli\u003eMedical and aesthetic laser systems\u003c\/li\u003e\n  \u003cli\u003eMilitary and defense laser systems\u003c\/li\u003e\n  \u003cli\u003eScientific and industrial pulsed laser research\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCo:MgAl\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e4\u003c\/sub\u003e \/ Co:Spinel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating Wavelength\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e~1.5–1.6 μm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInitial Transmission\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCustom available upon request\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSurface Quality\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10-5 or 20-10 scratch-dig available\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eParallelism\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; 10 arc sec typical\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFlatness\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eλ\/8 or λ\/10 available\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eAR coating available at customer-specified wavelength\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCustom sizes available\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCustom Options\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCustom diameter, thickness, and aperture size\u003c\/li\u003e\n  \u003cli\u003eDifferent initial transmission values\u003c\/li\u003e\n  \u003cli\u003eAR coating for 1.5 μm, 1.54 μm, 1.57 μm, or other wavelengths\u003c\/li\u003e\n  \u003cli\u003eMounted or unmounted crystal options\u003c\/li\u003e\n  \u003cli\u003ePrototype and research-grade quantities available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRequest a Quote\u003c\/h3\u003e\n\u003cp\u003e\nPlease contact us (Support@design-Realized.com) with your required wavelength, crystal size, initial transmission, coating requirement, and quantity. Our engineering team can help recommend a suitable Co:Spinel passive Q-switch crystal for your laser system.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003ca href=\"https:\/\/design-realized.com\/pages\/contact\" target=\"_blank\" style=\"display:inline-block;padding:10px 18px;background:#000;color:#fff;text-decoration:none;border-radius:4px;\"\u003e\nRequest a Quote\n\u003c\/a\u003e\n\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":46850223669387,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0650\/7941\/0827\/files\/CoSpinel_8be84382-2349-49fa-9c24-b5fa5b1491e6.png?v=1778012308","url":"https:\/\/design-realized.com\/products\/co-spinel-passive-q-switch-crystal","provider":"My Store","version":"1.0","type":"link"}