High Power Fiber-to-Fiber Isolators

Refractive Index 1.46; 40-75 cps Viscosity at 25°C Norland Optical Adhesive NOA 84 is a clear, colorless, liquid photopolymer that will cure when exposed to ultraviolet light and or visible light (blue-violet). Since it is a one part system and 100% solids, it offers many advantages in bonding where the adhesive can be exposed to UV light. The use of NOA 84 eliminates premixing, drying or heat curing operations common to other adhesive systems. Curing time is remarkably fast, and is dependent upon the thickness applied and the amount of ultraviolet light energy available.NOA 84 is designed to give the best possible optical bond when using plastic to plastic or plastic to glass substrates. NOA 84 has excellent adhesion to CR-39, polarized film, Delrin®, nylon, cellulose acetatebutyrate, polycarbonate, acrylics and glass.Typical Properties of NOA 84 Solids 100% Elongation at Failure 57% Modulus of Elasticity (psi) 1140 Tensile Strength (psi) 649 Hardness - Shore D 55 Shelf life of the liquid is at least 4 months from the date of shipment if stored in a cool (5-22° C), dark place in the original container. If refrigerated, allow the adhesive to come to room temperature prior to use.

Polarization Sensitive & Insensitive Versions; Fiber Type SM, PM, LMA, PLMA; 1030 nm to 1090 nm; Isolation ≥30 dB; Power Handling 1 W Isolators are optical devices that allow light to be transmitted in one direction only. They block the source from reflected light, thus preventing any feedback problems, such as frequency instability, relaxation oscillations, amplified stimulated emissions, or optical damage – very critical with the recent dramatic increase in laser output powers, especially in the 1030 to 1090nm wavelength range. To meet this demand OZ Optics has developed a line of high power handling isolators, capable of peak isolation levels of 30 dB to 50 dB for 1030 nm to 1090 nm, depending on the input beam size. The isolators are offered with fiber pigtailed collimators on the input and output beam, with typical beam diameters of 0.4 mm to 1.1 mm. OZ Optics uses a patented tilt alignment technique to manufacture isolators with fiber pigtails. Light from an optical fiber is first collimated then transmitted through the isolator. The fibers can be standard single mode fibers or Large Mode Area (LMA) fibers. LMA fibers are used to reduce the optical power density in the fiber core and therefore allow guidance of larger input power levels while still achieving near-gaussian output beam quality. This patented tilt alignment technique allows OZ Optics to offer compact pigtailed devices. The isolators come with built-in windows to prevent dust contamination of internal isolator optics. These protection windows are easily removed and replaced by the user. Custom smaller packages can be made for OEM applications – contact us for more details. Key Features: Wide Operating Wavelength Range: 60 nm Power Handling: Up to 80 W Isolation: Up to 50 dB Low Insertion & Polarization-dependent Losses Excellent Beam Quality Removable Protective Windows RoHS compliant Applications: Protection of high power lasers from reflections during a) laser marking and engraving; b) laser cutting and etching of metal surfaces with high reflectance such as Al, Cu, Au or Ag; c) micro machining and trimming