PPC_PrecisionCatalog.. - BFi OPTiLAS A/S

OpticsWhy DielectricInstead of Metal?Metal mirrors havelong been the standardfor general-purposebroadband high reflectors,but they have severalsignificant limitationswhich make thema poor match for manyof today’s laser applications.Although inexpensiveupfront, drawbacksof metal mirrorsinclude susceptibilityto both laser damageand mechanical abrasions,tarnishing orsurface degradation,and poor adhesion. Incontrast, the increasedreflectivity and durabilityof all-dielectriccoatings could result inimproved performanceand cost savings overthe lifetime of an opticor optical system.PPC’s broadband dielectriccoating coversa broad wavelengthrange (350–1100 nm)with > 99% reflectivity,independent of bothangle and polarization.Our high-energyion-beam-sputtering(IBS) process resultsin durable, dense dielectricfilms that havesuperior reflective andmechanical propertiesin addition to beingeasy to clean, scratchresistant and insensitiveto environmentalchanges. With highdamage thresholds andlow scatter and absorptioncoefficients, theyare ideal for frequencydoubled and tripled Nd:YAG lasers, fiber lasersand broadband or tunablelaser applications.10High-Energy Broadband Mirrors• Broadband lasermirrors for UV-NIR• Ideal for tunablelasers, Nd:YAG andfiber laser systems• All-dielectric IBScoating design• Can be used at anyincidence angle0-50°These super broadband mirrors (SBB) are ideal forbeam-steering applications using both the fundamentallaser wavelength and one or more harmonicswithin the same beam path. Becauseit is an all-dielectric design, they can handlethe high laser powers of both CW and pulsedsystems, without limiting the useful angle ofincidence or sensitivity to varying states ofpolarization.Custom mirrors are available on other flatand curved substrates. Also, contact us fordetails on stress-compensated mirrors forλ/10 surface flatness after-coating.High-Energy Broadband MirrorsModel # MI1050-SBB MI1000-VIS MI1000-NIRTypeSuper BroadbandDielectric MirrorsBroadband VisibleDielectric MirrorsBroadband Near-IRDielectric MirrorsWavelength Range 350–1100 nm 350–700 nm 700–1150 nmReflectivityprecisionphotonics.com99% from 0–50°(both s & p)99% from 0–45°(both s & p)Clear Aperture 85% 85% 85%Surface Figure* λ/10 λ/10 λ/10Surface Quality 20/10 20/10 20/10Damage Threshold% R10090080706050403020100350>5 J/cm 2 @ 1064 nm>1 J/cm 2 @ 355 nm20 ns, 20 HzSBB Mirror 350 nm – 1100 nmNormal Incidence45° AOI Random Polarization600 800 1000 1200 1400Wavelength (nm)>2 J/cm 2 @ 532 nm10 ns, 20 Hz99% from 0–45°(both s & p)>8 J/cm 2 @ 1064 nm20 ns, 20 HzDurability MIL-PRF-13830B MIL-PRF-13830B MIL-PRF-13830BDiameter 1" +0/–0.010" 1" +0/–0.010" 1" +0/–0.010"Thickness 1/4" ±0.010" 1/4" ±0.010" 1/4" ±0.010"Substrate Material Fused silica Fused silica Fused silicaPrice** $275 $175 $175* p-v at 633 nm, after coating with Power subtracted.** For international prices, add 10%.