{"id":97,"date":"2026-06-23T05:32:17","date_gmt":"2026-06-23T05:32:17","guid":{"rendered":"https:\/\/www.signoraoptics.com\/?post_type=product&p=97"},"modified":"2026-06-23T06:03:37","modified_gmt":"2026-06-23T06:03:37","slug":"single-period-ppln-crystal-chips","status":"publish","type":"product","link":"https:\/\/www.signoraoptics.com\/?product=single-period-ppln-crystal-chips","title":{"rendered":"Single-Period PPLN Crystal Chips"},"content":{"rendered":"

Basic Structure<\/b><\/p>\n

\"ppln\"<\/p>\n

QPMPeriod:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.0\u00b5m~200\u00b5m
\nWavelengthRange:\u00a0 \u00a0 \u00a0 330nm~5.5\u03bcm
\nQPMTemperature:\u00a0 \u00a0 \u00a0 25\u2103\u2013200\u2103
\nFlatness:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u03bb\/6@633nm
\nCoating:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Anti-Reflection(AR)\/High-Reflection(HR)\/Filter
\nMaterialOptions:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Standard Lithium Niobate(LN)\/MgO doped Lithium Niobate.<\/p>\n

 <\/p>\n

 <\/p>\n

Nd:YVO4+PPLNOpticallyContactedBondedChips<\/strong><\/p>\n

\"NdYVO4-PPLN\"<\/p>\n

<\/div>\n

Thiscompositechipintegratesalasergainmediumwithanonlinearcrystalforacompact,integratedopticalengine.<\/span><\/p>\n

    \n
  • <\/b>Nd:YVO4 (Front End):\u00a0<\/b><\/strong>As the laser gain medium, it absorbs external pump light (typically from an 808 nm laser diode) and generates fundamental infrared laser light at 1064 nm. Nd:YVO4 is chosen for its high absorption and conversion efficiency, as well as its linearly polarized output, making it an excellent core for compact lasers.<\/li>\n
  • <\/b>Optical Contacting Interface:<\/b><\/strong>The two crystals are bonded via atomic-level molecular forces without any air gaps or chemical adhesives. This ensures the 1064 nm laser passes from the Nd:YVO4 into the PPLN with virtually no reflection or scattering loss.<\/li>\n
  • <\/b>PPLN (Rear End):\u00a0<\/b><\/strong>Acting as the nonlinear optical crystal, it receives the 1064 nm infrared laser and efficiently converts it into other wavelengths (e.g., frequency doubling to 532 nm green light, or other wavelengths via OPO\/DFG).<\/li>\n<\/ul>\n

    SelectedTypicalProducts<\/strong><\/p>\n\n\n\n\n\n\n\n\n
    Product<\/b><\/strong><\/td>\nType<\/b><\/strong><\/td>\nQPM Period<\/b><\/strong><\/td>\nThickness<\/b><\/strong><\/td>\n<\/tr>\n
    S-1064-SHG<\/td>\n1064nm SHG<\/td>\n6.97\u00a0\u00b5m<\/td>\n0.5, 1, 2, 3 mm<\/td>\n<\/tr>\n
    S-1550-SHG<\/td>\n1550nm SHG<\/td>\n19.60\u00a0\u00b5m<\/td>\n0.5, 1, 2, 3 mm<\/td>\n<\/tr>\n
    S-1580-SHG<\/td>\n1580nm SHG<\/td>\n20.22\u00a0\u00b5m<\/td>\n0.5, 1, 2, 3 mm<\/td>\n<\/tr>\n
    S-I-1064-SHG<\/td>\nNdYVO4+PPLN 1064nm SHG<\/td>\n6.97\u00a0\u00b5m<\/td>\n0.5, 1, 2, 3 mm<\/td>\n<\/tr>\n
    ……<\/td>\n……<\/td>\n……<\/td>\n……<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Typical Application Scenarios<\/b><\/strong><\/h3>\n

    \uf0b7 1064nmSHG(GreenLightGeneration):<\/p>\n

    ChipSpecs:MgO:PPLNsubstrate,QPMperiod6.97\u00b5m.<\/p>\n

    Dimensions:2.0(W)\u00d71.0(T)\u00d71.2(L)mm.<\/p>\n

    \uf0b7 1550nmSHG(TelecomBandConversion):<\/p>\n

    ChipSpecs:MgO:PPLNsubstrate,QPMperiod19.6\u00b5m.<\/p>\n

    Dimensions:1.5(W)\u00d71.0(T)\u00d750(L)mm.<\/p>\n

    \uf0b7 808nmPumpedGreenLaser(All-in-OneModule):<\/p>\n

    ChipSpecs:Nd:YVO4+PPLNbondedcrystal,QPMperiod6.97\u00b5m.<\/p>\n

    Dimensions:2.0(W)\u00d72.0(T)\u00d73.3(L)mm.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Basic Structure QPMPeriod:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.0\u00b5m~200\u00b5m WavelengthRange:\u00a0 \u00a0 \u00a0 330nm~5.5\u03bcm QPMTemperature:\u00a0 \u00a0 \u00a0 25\u2103\u2013200\u2103 Flatness:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u03bb\/6@633nm Coating:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Anti-Reflection(AR)\/High-Reflection(HR)\/Filter MaterialOptions:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Standard Lithium Niobate(LN)\/MgO […]<\/p>\n","protected":false},"featured_media":87,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[21],"product_tag":[],"class_list":{"0":"post-97","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ppln","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=\/wp\/v2\/product\/97","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=97"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=\/wp\/v2\/media\/87"}],"wp:attachment":[{"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=97"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=97"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=97"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.signoraoptics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}