Optical adhesive

Adhesive technology used in optical communication is one of our main technologies. In order to put low-cost and highly reliable optical components into practical use, adhesives that can be easily adhered and have excellent durability are required. The requirements differ depending on which part of the optical component it is used in. We develop and commercialize adhesives and resins that meet customer needs, such as refractive index matching, precision fixing, heat resistance and high elasticity, and low moisture permeability.

An adhesive for optical path coupling that can control the refractive index within the range of 1.45 to 1.56 @ nD with an accuracy of ±0.005.

The refractive index of resin is generally around 1.5, and high reflection loss occurs when bonding high-refractive-index glass and crystal materials. To solve these drawbacks, NTT-AT manufactures and sells resins with a high refractive index of 1.7 or higher based on refractive index control technology and loss reduction technology, which are the base technologies for optical communication adhesives. increase.

We introduce frequently asked questions about optical adhesives as FAQ.

You can download a PDF of the REACH, RoHS, and TSCA compliant product information for optical adhesives and sealing materials.