| 摘要 |
PURPOSE:To fix optical parts with sufficient strength onto a substrate and to obtain the optical circuit parts which are stable to ambient environment by fixing a cap member formed with a recess in a prescribed position by solder or adhesive agents onto the substrate on which the optical parts are mounted in such a manner as to seal the optical parts. CONSTITUTION:Optical fibers 1a, 1b, 1c and the optical parts 2-5 are so positioned with high accuracy that the fibers and the parts are optically coupled to each other. The fibers and parts are then fixed onto the substrate 7 by, for example, the solder 6. The cap member 8 formed with the recess 9 in the prescribed position is then fixed by the solder 6' in such a manner as to seal the sticking surfaces of the optical parts and the substrate for positioning. Since the fixing by using the entire circumference of the optical parts is thereby enabled, the sufficient fixing strength is assured and since the space to allow transmission of rays and air is closed by the solder 6, 6', the deterioration of the optical coupling by moisture and dust is averted. |
