Protecting method for optical parts

Abstract

Abstract PURPOSE:To simplify a sealing work, and to protect optical parts at a low cost by inserting and sticking the optical parts to which an optical fiber has been connected, by a pair of substrates having rigidity, to which a hot-melt adhesive agent has been laminated, and sealing the optical parts by the hot-melt adhesive agent. CONSTITUTION:By using a pair of substrates 20A, 20B having rigidity, which have laminated a hot-melt adhesive agent 21 on the opposed surfaces, an optical element and an optical waveguide are formed on a circuit substrate 2, optical parts 1 to which an optical fiber has been connected as an input/output line are inserted and stuck to the optical waveguide, a hot-melt adhesive agent 21 is heated, melted and hardened, the optical parts 1 are sealed, and the optical parts 1 and the substrates 20A, 20B are formed as one body by using the hot- melt adhesive agent 21 as a medium. In this way, the substrates 20A, 20B are roughly shaped like a plate, and its cost is low. Also, since the sealing medium is a hot-melt adhesive agent, it is melted and hardened quickly, the hardening time is quick. Moreover, the optical parts 1 and the substrates 20A, 20B can be formed as one body at a low cost.

Inventors

• 👤 Eiji Kikuchi
• 👤 菊池　英治
• 👤 Sakae Yoshizawa
• 👤 吉澤　栄
• 👤 Kazuya Sasaki
• 👤 和哉 佐々木

Bibliographic Details