Optical resins for advanced optical applications from datacom to XR

Applications of optical resins are expanding beyond conventional silica-based planar lightwave circuits to optical engines using Si photonics technology for telecom/datacom, and optical systems for XR applications. We have developed advanced expertise in precisely controlling the optical and physical properties of optical resins in the information and telecommunication field. In recent years, we have applied this expertise to the successful development of high heat resistant optical adhesives for solder reflow and high refractive index resins for XR optical systems. Here, we introduce our optical adhesives with small refractive index change of less than ±0.005 after baking at 260℃ for 5 minutes for Si photonics. We also present various types of resins with high refractive indices up to 2.0 for nanoimprint lithography and coatings.