{"title":"PPLN","description":null,"products":[{"product_id":"ppln-waveguide","title":"PPLN Waveguide","description":"\u003cp\u003e\u003cstrong\u003ePPLN Waveguide\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eProton exchange and metal diffusion are the two most common methods of preparing a lithium niobate waveguide; with these processes the refractive-index difference between the waveguide and the substrate is small and the optical confinement is weak. Based on the ridge waveguide structure of lithium niobate single-crystal film (LNOI), the index difference between core and cladding is greatly increased and the confinement is enhanced, so the nonlinear effect of the waveguide is improved. The ridge waveguide also has a higher optical damage threshold, making it suitable for high power frequency-conversion devices.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable for SHG \/ SFG \/ DFG nonlinear frequency conversion\u003c\/li\u003e\n\u003cli\u003eHigh efficiency coupling between optical fiber and waveguide\u003c\/li\u003e\n\u003cli\u003eHigh conversion efficiency\u003c\/li\u003e\n\u003cli\u003eHigh damage threshold\u003c\/li\u003e\n\u003cli\u003eHigh long-term stability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh power single frequency laser\u003c\/li\u003e\n\u003cli\u003eQuantum key distribution system\u003c\/li\u003e\n\u003cli\u003eLaser radar\u003c\/li\u003e\n\u003cli\u003eOptical sensing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTell us your wavelength, bandwidth and fiber type and we will quote the right configuration.\u003c\/p\u003e","brand":"HJ Optronics, Inc.","offers":[{"title":"Default Title","offer_id":67666130763850,"sku":"PPLN-WAVEGUIDE","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0108\/0619\/8330\/files\/1724811381687242505042325504.png?v=1791846728"},{"product_id":"ppln-crystal","title":"PPLN Crystal (Periodically Poled Lithium Niobate)","description":"\u003cp\u003e\u003cstrong\u003ePPLN Crystal (Periodically Poled Lithium Niobate)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePeriodically poled lithium niobate (PPLN) is a highly efficient crystal for nonlinear wavelength conversion. It has a wide light transmission range covering the NIR and MIR spectral regions and is used for SHG, SFG, DFG, OPO and other nonlinear processes from the visible to the mid infrared. To meet the needs of modern optics for diverse laser wavelengths, any output wavelength inside the transmission range can be realised by designing the periodic structure. PPLN crystals are widely used in laser display, environmental detection, mid-infrared spectroscopy, all-optical wavelength conversion and optical sensing. MgO doping greatly improves the optical damage threshold and the photorefractive threshold while maintaining a high nonlinear coefficient, and MgO:PPLN works more stably at lower temperature and in the visible range than undoped PPLN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable wavelength from visible to mid infrared\u003c\/li\u003e\n\u003cli\u003eSHG \/ SFG \/ DFG nonlinear frequency conversion\u003c\/li\u003e\n\u003cli\u003eUniform periodically poled structure\u003c\/li\u003e\n\u003cli\u003ePrecision end polishing and coating\u003c\/li\u003e\n\u003cli\u003eHigh damage threshold\u003c\/li\u003e\n\u003cli\u003eMgO-doped option for a higher photorefractive threshold\u003c\/li\u003e\n\u003cli\u003eCustom period design for the required output wavelength\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePeriodically poled lithium niobate (PPLN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoping Option\u003c\/td\u003e\n\u003ctd\u003eMgO:PPLN (magnesium oxide doped)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength Coverage\u003c\/td\u003e\n\u003ctd\u003eVisible to mid infrared (custom period design)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonlinear Processes\u003c\/td\u003e\n\u003ctd\u003eSHG, SFG, DFG, OPO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoling\u003c\/td\u003e\n\u003ctd\u003eUniform periodically poled structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Faces\u003c\/td\u003e\n\u003ctd\u003ePrecision polished and coated to specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamage Threshold\u003c\/td\u003e\n\u003ctd\u003eHigh (further improved by MgO doping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003eMgO:PPLN works stably at lower temperature and in the visible range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm\u003c\/td\u003e\n\u003ctd\u003eCustom, built to specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLaser display\u003c\/li\u003e\n\u003cli\u003eMid-infrared spectroscopy\u003c\/li\u003e\n\u003cli\u003eAll-optical wavelength conversion\u003c\/li\u003e\n\u003cli\u003eOptical sensing\u003c\/li\u003e\n\u003cli\u003eScientific research and medicine\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eData Sheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0108\/0619\/8330\/files\/ppln-crystal-HJ-spec-sheet.pdf?v=1791867133\" target=\"_blank\"\u003ePPLN Crystal (Periodically Poled Lithium Niobate) (PDF)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003ePeriod, dimensions and coatings are designed to order - send us your specification for a quotation.\u003c\/p\u003e","brand":"HJ Optronics, Inc.","offers":[{"title":"Default Title","offer_id":67667694616650,"sku":"PPLN-CRYSTAL","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0108\/0619\/8330\/files\/ppln-crystal.png?v=1791867138"}],"url":"https:\/\/hjoptronicsinc.com\/collections\/ppln.oembed","provider":"HJ Optronics, Inc.","version":"1.0","type":"link"}