OpticsCustom Beamsplitters andDichroic MirrorsMWIR Coatings(2.94 μm and3–5 μm)<strong>PPC</strong>’s IBS coatingsprovide outstandingperformance for thenew generation ofsolid state lasers operatingat 2 µm (Ho:YAG,Ho:YLF, Tm:fiber,Tm:YAG), 2-3 µm tunablelasers (Cr:ZnSe),and 2.94 µm lasers(Er:YAG).In order to further expandand quantify ourcapabilities, we haveactive R&D projectsand government SBIRprograms for additionalIBS coating developmentthroughout themid-infrared (MWIR)wavelength region(2–5 µm).12% T1009080706050403020100700 750% T800 850 900 950 1000 1050 1100 1150 1200Wavelength (nm)Unpolarized Light30°Fused Silica• Durable IBS coatingsfor precisionspecs and stability• Dichroic mirrorswith R > 99% at l 1and T > 98% at l 2• Anti-reflectioncoating to R < 0.1%Example A: custom dichroic mirrors30°pTFPCoating30°HR CoatingExample B: custom polarizing beamsplitter100908056° AOI, S-pol.56° AOI, P-pol.7060504030201001900 1950 2000 2050 2100 2150 2200 2250Wavelength (nm)Example C: custom 2.1 µm polarizerprecisionphotonics.comAmong the many diverse custom optical componentsthat <strong>PPC</strong> offers are gradient coating mirrors,low dispersion polarizing cubes, diode-pumpedNd:YAG resonator mirrors, 50/50 non-polarizingbeamsplitters and thin-film plate polarizingbeamsplitters. For all the optical componentswe provide, we use only ion-beam-sputtered(IBS) coatings because our IBS coatings aresignificantly more dense, durable, and ruggedthan conventional coatings. The IBS coatingprocess is both accurate and repeatable, resultingin precision coatings that are easy toclean, chemically resistant and insensitive tomoisture and other environmental factors.For broadband, dispersion-free multi-photonmicroscopy mirrors, see page 11.For polarizing beamsplitters, see pages 13–14.These are just some of the types of coatings that <strong>PPC</strong>does every day on in-house and customer-supplied substrates.High-energy ion-beam-sputtered thin films that areaccurate, durable and environmentally stable are ourforté, and we can turn around parts in as little as 48hours!Typical Dichroic CharacteristicsTypeLong-wave pass, short-wave pass orcustomOperating WavelengthUV, Visible & NIR (250–3000 nm)Angle of Incidence0°, 45° or customReflectivity>99.9%Transmission>98%On/Off Tolerance5%AR on Side 2
OpticsPolarizing Beamsplitter CubesNo Glue Here!<strong>PPC</strong> beamsplitter cubes are derived from a unique combination of IBScoatings, ultraprecise fabrication capabilities and our robust, epoxyfreebonding technology—Chemically Activated Direct Bonding (CADB ® ) which results in a zero-bondline thickness and laserdamage thresholds up to three times the power levels of othercommercially available products. In addition to the standardsizes and wavelengths shown, we can produce high-energycube beamsplitters from 1×1 mm 2 in size, and in a wide varietyof materials including fused silica, BK7, YAG, and other opticalglasses and crystals.Whether you need 10 or 10,000 pieces, our precision waferbasedprocesses result in high yields and competitive costs,especially at higher volumes. These high-precision assemblieshave been widely used in telecommunications, semi-conductorand biomedical applications where transmission efficiency, extinctionratio and wavefront quality are all critical specifications.All of our polarizing beamsplitter cubes are epoxy free, making themsuitable for high power applications with energy densities exceeding10 J/cm 2 at 1064 nm.Contact us for information on custom broadband polarizers and low dispersionbeamsplitter cube designs.See page 17 for more information on custom prisms, micro-optics and optical-assemblies.See pages 14–15 for other polarization components such as Brewster plates andwaveplates.• CADB bondingfor epoxy-freeoptical paths• High-energylaser-line designs• Convenient 90°beam separation• Custom cubesavailable from1 mm to >25 mmPolarizing Beamsplitter CubesModel # PBS1010-FY PBS1005-FY PBS1005-DY PBS1005-TYType Laser Line Laser Line Laser Line Laser LineWavelength 1064 nm 1064 nm 532 nm 355 nmReflection Efficiency, R s >99.9% >99.9% >99.85% >99.8%Avg. Transmission, T p >95% >95% >95% >95%Extinction Ratio, T p /T s 1,000:1 1,000:1 750:1 500:1AR Coating