Method for connecting optical fiber and optical waveguide

Abstract

Abstract PURPOSE:To improve the reliability of fixing at the time of connecting an optical fiber to an optical waveguide formed to a circuit board by coating metal alkoxide in a sol state to the junctire thereof and fixing the junctire by the metal oxide vitrified by heating said coating. CONSTITUTION:The end face of the optical fiber 3 is pressed to the end face of then optical waveguide 2 formed on the circuit board 1. The metal alkoxide 10a in the sol state having the compsn. approximate to then compsn. of the optical fiber 3 or the compsn. of the circuit board 1 in the vitrified state is so coated as to cover the juncture between the optical waveguide 2 and the optical fiber 3. The juncture is thereafter heated to vitrify the metal alkoxide 10a in the sol state to the metal oxide 10. The optical fiber 3 is fixed to the circuit board 1 by such metal oxide 10. The possibility for the positional deviation of the optical fiber 3 is thereby eliminated and the reliability of optical coupling is improved.

Inventors

• 👤 Fumio Wada
• 👤 和田　史生

Bibliographic Details