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uedbet官网手机版KTPCrystal

时间:2020-05-18作者:uedbet官网手机版已浏览: 174次

•Largenonlinearopticalcoefficient;•Wideangularbandwidthandsmallwalk-offangle;•Broadtemperatureandspectralbandwidth;•Highelectro-opticcoefficientandlowdielectricconstant;•Largefigureofmerit;•Nonhydroscopic,chemicallyandmechanicallystable.CASTECHoffers:•Strictqualitycontrol;•Largecrystalsizeupto20x20x40mm3andmaximumlengthof60mm;•Quickdelivery(2weeksforpolishedonly,3weeksforcoated);•Unbeatablepriceandquantitydiscount;•Technicalsupport;•AR-coating,mountingandre-polishingservice.

TemperatureAcceptance:24°C·cmSpectralAcceptance:0.56nm·cmAngularAcceptance:14.2mrad·cm(φ);55.3mrad·cm(θ)Walk-offAngle:0.55°

nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ2ny2=3.0333+0.04154/(λ2-0.04547)-0.01408λ2nz2=3.3134+0.05694/(λ2-0.05658)-0.01682λ2

ApplicationsforSHGandSFGofNd:lasers:KTPisthemostcommonlyusedmaterialforfrequencydoublingofNd:YAGandotherNd-dopedlasers,particularlywhenthepowerdensityisatalowormediumlevel.Todate,extra-andintra-cavityfrequencydoubledNd:lasersusingKTPhavebecomeapreferredpumpingsourceforvisibledyelasersandtunableTi:Sapphirelasersaswellastheiramplifiers.Theyarealsousefulgreensourcesformanyresearchandindustryapplications.•Morethan80%conversionefficiencyand700mJgreenlaserwereobtainedwitha900mJinjection-seededQ-switchNd:YAGlasersbyusingextra-cavityKTP.•8Wgreenlaserwasgeneratedfroma15WLDpumpedNd:YVO4withintra-cavityKTP.•200mWgreenoutputsaregeneratedfrom1WLDpumpedNd:YVO4lasersbyusingCASTECH's2x2x5mm3KTPand3x3x1mm3Nd:YVO4.

KTPisalsobeingusedforintracavitymixingof0.81µmdiodeand1.064µmNd:YAGlasertogeneratebluelightandintracavitySHGofNd:YAGorNd:YAPlasersat1.3µmtoproduceredlight.

ApplicationsforOPG,OPAandOPO:AsanefficientOPOcrystalpumpedbyaNd:laseranditssecondharmonics,KTPplaysanimportantroleforparametricsourcesfortunableoutputsfromvisible(600nm)tomid-IR(4500nm),asshowninFig.3andFig.4.Generally,KTP'sOPOsprovidestableandcontinuouspulseoutputs(signalandidler)infs,with108Hzrepetitionrateandaminiwattaveragepowerlevel.AKTP'sOPOthatarepumpedbya1064nmNd:YAGlaserhasgeneratedashighasabove66%efficiencyfordegeneratelyconvertingto2120nm.

Thenoveldevelopedapplicationisthenon-criticalphasematched(NCPM)KTP'sOPO/OPA.AsshowninFig.5,forpumpingwavelengthrangefrom0.7µmto1µm,theoutputcancoverfrom1.04µmto1.45µm(signal)andfrom2.15µmto3.2µm(idler).Morethan45%conversionefficiencywasobtainedwithnarrowoutputbandwidthandgoodbeamquality.

uedbet官网手机版InadditiontouniqueNLOfeatures,KTPalsohaspromisingE-OanddielectricpropertiesthatarecomparabletoLiNbO3.TheseadvantagedpropertiesmakeKTPextremelyusefultovariousE-Odevices.Table3isacomparisonofKTPwithotherE-Omodulatormaterialscommonlyused:

FromTable3,clearly,KTPisexpectedtoreplaceLiNbO3crystalintheconsiderablevolumeapplicationofE-Omodulators,whenothermeritsofKTParecombinedintoaccount,suchashighdamagethreshold,wideopticalbandwidth(15GHZ),thermalandmechanicalstability,andlowloss,etc.ApplicationsforOpticalWaveguides:Basedontheion-exchangeprocessonKTPsubstrate,lowlossopticalwaveguidesdevelopedforKTPhavecreatednovelapplicationsinintegratedoptics.Table4givesacomparisonofKTPwithotheropticalwaveguidematerials.Recently,atypeIISHGconversionefficiencyof20%/W/cm2wasachievedbythebalancedphasematching,inwhichthephasemismatchfromonesectionwasbalancedagainstaphasemismatchintheoppositesignfromthesecond.Furthermore,segmentedKTPwaveguideshavebeenappliedtothetypeIquasi-phase-matchableSHGofatunableTi:Sapphirelaserintherangeof760-960mm,anddirectlydoubleddiodelasersforthe400-430nmoutputs.

CASTECHprovidesthefollowingAR-coatings:•DualBandAR-coating(DBAR)ofKTPforSHGof1064nm.lowreflectance(R<0.2%at1064nmandR<0.5%at=""high=""damage=""threshold=""300MW/cm2atbothwavelengths);longdurability.

•BroadBandAR-coating(BBAR)ofKTPforOPOapplications.•Highreflectivitycoating:HR1064nm&HT532nm,R99.8%@1064nm,T90%@532nm.•Othercoatingsareavailableuponrequest.

CASTECH'sWarrantyonKTPSpecifications:‍•Dimensiontolerance:(W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm)(L≥2.5mm)(W±0.1mm)x(H±0.1mm)x(L+0.1/-0.1mm)(L<2.5mm)•Clearaperture:central90%ofthediameter•Novisiblescatteringpathsorcenterswheninspectedbya50mWgreenlaser•Flatness:lessthanλ/8@633nm•Transmittingwavefrontdistortion:lessthanλ/8@633nm•Chamfer:≤0.2mm@45°•Chip:≤0.1mm•Scratch/Digcode:betterthan10/5(MIL-PRF-13830B)•Parallelism:betterthan20arcseconds•Perpendicularity:≤5arcminutes•Angletolerance:△θ≤0.25°,△ф≤0.25°•Damagethreshold[GW/cm2]:0.5for1064nm,TEM00,10ns,10HZ(AR-coated)0.3for532nm,TEM00,10ns,10HZ(AR-coated)

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