| 摘要 |
PURPOSE:To easily manufacture a high-accuracy recessed or projected part for adjustment-free positioning by exposing photoresist to projection light from an optical waveguide and forming the recessed or projected part for positioning. CONSTITUTION:An end surface of the optical waveguide 14 consisting of a thin film 12 and a protection layer 13 on a dielectric substrate 11 is coated with positive type photoresist 15. An end surface of the optical fiber 18 consisting of a core 16 and a clad 16, on the other hand, is coated with negative type photoresist 19. Then laser light 21 is guided from the other end surface of the optical waveguide 14 to the optical waveguide 14 by using a lens 20, etc., to expose the photoresist 15. Only the periphery of the core of the photoresist 19 is exposed to laser light incident from the other end of the optical fiber 18. Consequently, the recessed part 22 and projected part for adjustment- free and high-accuracy positioning are formed. |
