Sealants for Optical Parts

Viscosity 70->20,000 mPas; Shear Bond Strength > 69->200 kgf/cm²; Bending Adhesion Strength 9-25 kgf/cm²; UV Curing Conditions 10-100 mW/cm², 5, 10 min; Colour Light Yellow, Colourless, White; Tg +42-+219 °C NTT-AT’s series of adhesives for fiber array assemblies feature high moisture resistance and excellent workability for v-groove fixing or optical fiber fixing. Fiber arrays are used for the input and output of optical waveguide devices. NTT-AT’s AT3925M, AT9390, AT9968, AT3727E and AT3728E epoxy-based optical adhesives are used for fixing the v-grooves and have realized price reductions while enhancing moisture resistance compared to conventional products. These adhesives can be polished after assembly. NTT-AT’s AT9575M (epoxy) and AT8105 (acrylate) adhesives for optical fiber fixing have gained popularity for their good workability as non-fluid adhesives. NTT-AT has executed durability tests that have shown no peeling of a fiber array after 2,000 hours at +85 °C and 85% of humidity. With viscosities that are appropriate for the usage location, the adhesives for fiber array assemblies are easy to use. While the adhesives for fixing v-grooves show fluidity, the optical fiber fixing adhesives’ consistency is that of a paste, suitable for protecting the fiber. In case you need any consulting regarding issues related to adhesion, please contact the AMS Technologies optical adhesives experts to discuss the detailed challenges of your application. Key Features: Excellent Durability Just the Right Viscosity for Easy Application: Non-liquid Viscosity for Fiber Fixation, Low Viscosity Fluid for Fiber Fixation into V-Type Groove Heat-proof: Maximum Glass Transition Temperature Tg of Over +200 °C (AT3925M) Viscosity: 70 to >20,000 mPas Shear Bond Strength: > 69 to >200 kgf/cm² Bending Adhesion Strength: 9 to 25 kgf/cm² UV Curing Conditions: 10 to 100 mW/cm², 5, 10 min Colour (Pre-Curing): Light Yellow, Colourless, White Glass Transition Temperature Tg: +42 to +219 °C Applications: Gluing of Fiber Array Assemblies; V-Groove Fixing; Optical Fiber Fixing

Refractive Index 1.458-1.567; Viscosity 145-2,000 mPas; Optical Transmittance (@1 mm, 1.3 µm) 82%-94%; Bond Strength 99->247 kgf/cm²; UV Curing Conditions 10, 30 mW/cm², 5, 10 min You are looking for PLC and fiber array adhesion with high reliability? Try NTT-AT’s series of adhesives for optical waveguides! Within this series you find acrylate-based adhesives (AT6001, AT8224)with excellent durability that have cleared a large number of reliability tests. Epoxy adhesives are also part of this series, with a refractive index that can be accurately controlled within a range of 1.456 to 1.567 (±0.005, Na-D) – or with a fixed refractive index that is the same as quartz to deliver low reflectance (GA700L, GA700H). UV curing of the adhesives for optical waveguides allows for adhesion in a short time frame and makes alignment easy. The adhesives withstand a solder reflow process for Si Photonics (+260 °C). In order to achieve high reliability, a product must clear the tests conducted by the users themselves. If you have had even just a bit of dissatisfaction in reliability test results in the past, please put NTT-AT’s adhesives for optical waveguides to the test. In case you need any consulting regarding issues related to adhesion, please contact the AMS Technologies optical adhesives experts to discuss the detailed challenges of your application. Key Features: Optical Adhesive Used for PLC to Fiber Link-up Precision Refraction Index of 1.458 to 1.567 (±0.005, Na-D) Provides Controllability Ultraviolet (UV) Curing Conditions: 10, 30 mW/cm², 5, 10 min Very Little Adhesion Loss Due to Heat or Moisture, Providing High Durability Viscosity: 145 to 2,000 mPas Optical Transmittance: 82% to 94% (@1 mm Thickness, Wavelength 1.3 µm) Bond Strength: 99 to >247 kgf/cm² Applications: Gluing of Optical Waveguides; PLC to Fiber Link-up; Silicon Waveguide to Fiber Link-up

Piranha EPO-TEK® 353ND Epoxy, 2 gramsTwo component, 100% solids, heat curing epoxy designed for high temperature applications. It will perform continuously at 200°C while also tolerating 300-400°C for several hours. Recommended cure time and temperature: 110°C for 30 minutes. Pot life of up to 3 hours.

Piranha EPO-TEK® 353ND Epoxy, 4 gramsTwo component, 100% solids, heat curing epoxy designed for high temperature applications. It will perform continuously at 200°C while also tolerating 300-400°C for several hours. Recommended cure time and temperature: 110°C for 30 minutes. Pot life of up to 3 hours.

Refractive Index 1.603-1.720; Viscosity 9-7,000 mPas; Transmittance 72%-96%; Hardness 67-83 Shore D; Shear Bond Strength 35->280 kgf/cm²; UV Curing Conditions 10, 100 mW/cm², 5, 10 min; Tg +63-+113 °C With a typical refractive index of 1.5 in conventional optical adhesives, the problem of a high reflection loss arose in cases of adhesion with high refractive index glass and crystal materials. Utilizing its refractive index control technology and optical loss reduction technology, NTT-AT has developed optical adhesives with a high refractive index adjustable to 1.6 or more. By adding high refractive index fillers, NTT-AT is even able to manufacture resins with a refractive index of 1.9. These resins are aimed at usage in the fields of optical recording, display technology, optical energy uses, etc. In addition to this series, NTT-AT also provides high refractive index resins for nanoimprint applications. NTT’s high refractive index resins are excellent in transparency in visible light domains, with haze values of 1 or less, so it is expected that they are used as a coating agent for displays and similar products. Within this series, you find acrylate-based adhesives (#18165 and #6205) as well as epoxy adhesives (E3754 and E7200). To match the particular working environment of our customers, NTT-AT provides both ultraviolet (UV) and heat curing types. NTT-AT provides refractive index customized resins to meet each customer's needs. It is possible to respond to several kinds of requests such as with/without solvent or adjusting the viscosity. Please contact the AMS Technologies optical adhesives experts to discuss your customized refractive index matched optical adhesive solution. Key Features: Refractive Index of 1.6 or More Can Be Chosen High Accuracy of Refracting Index Control: ±0.005 Choice of Either Ultraviolet (UV) Curing or Heat Curing Method High Transparency in Visible Light Domains: Optical Transmittance 90% or More at 1 mm Thickness Refractive Index: 1.603 to 1.720 Viscosity: 9 to 7,000 mPas Transmittance: 72% to 96% Hardness: 67 to 83 Shore D Shear Bond Strength: 35 to >280 kgf/cm² UV Curing Conditions: 10, 100 mW/cm², 5, 10 min Glass Transition Temperature Tg: +63 to +113 °C Applications: High Refractive Index Coating Agents; Bonding High Refractive Index Crystal Materials; Bonding High Refractive Index Glass (for Camera Lenses, Eyeglass Lenses, etc.); Higher Efficiency Optical Input and Output Power; Efficient Conversion of Light Energy; Optical Recording; Display Technology

Viscosity 36,000, 180,000 mPas; Bending Adhesion Strength >114, >128 kgf/cm²; UV Curing Conditions 100 mW/cm², 2 min; Curing Shrinkage Rate 0.5%, 0.9%; Tg +195, +233 °C; Thermal Expansion Coefficient 18, 20 ppm/°C NTT-AT’s high-precision optical adhesives allow easy fixation of optical components with sub-micron accuracy. Based on epoxy, these high-precision optical adhesives are available with low viscosity of 36,000 mPas (AT3916P) or with high viscosity of 180,000 mPas (AT3862P). Both adhesives show minimal position changes due to curing time and temperature. Shrinkage rate during curing is very low for this series of high-precision optical adhesives, and the thermal expansion coefficient is small. Using ultraviolet (UV) ray curing makes alignment easy. NTT-AT’s series of high-precision adhesives show excellent durability: Even after a high-temperature process at +260 °C, the adhesives’ bonding strength does not change. And no peeling occurred after 200 cycles in a simplified heat cycle test. In order to achieve high reliability, a product must clear the tests conducted by the users themselves. If you have had even just a bit of dissatisfaction in precision or durability results in the past, please put NTT-AT’s high-precision adhesives to the test. In case you need any consulting regarding issues related to adhesion, please contact the AMS Technologies optical adhesives experts to discuss the detailed challenges of your application. Key Features: Low Shrinkage Rate During Curing: 0.5% (AT3862P), 0.9% (AT3916P) Low Thermal Expansion Coefficient: <20 ppm/°C Ultraviolet (UV) Curing for Easy Alignment Excellent Durability: No Change in Bonding Strength After +260 °C High-temperature Process, No Peeling After 200 Heat Test Cycles Viscosity: 36,000, 180,000 mPas Bending Adhesion Strength: >114, >128 kgf/cm² UV Curing Conditions: 100 mW/cm², 2 min Glass Transition Temperature Tg: +195, +233 °C Applications: High-precision Fixation of Optical Components With Sub-micron Accuracy

Refractive Index 1.52; 100 cps Viscosity at 25°CNorland Index Matching Liquid 150 is a low viscosity liquid monomer that can be used as an index matching media for temporary splicing using the Norland Optical Splice. This material will not cure and will always remain a liquid. Typical Properties of Norland Index Matching Liquid 150 Appearance Light yellow liquid Normal index matching silicone fluids and gels can cause adhesion problems because once it contacts a surface it is very difficult to remove all traces. Our IML 150 can be removed with acetone.