| 摘要 |
PROBLEM TO BE SOLVED: To obtain an optical module which is manufactured inexpensively by adopting a resin sealed type while preventing the reduction in optical output due to the resin seal. SOLUTION: The optical module is such a type that an optical semiconductor element 3 and an optical fiber 1 are optically connected and fixed on a substrate 5, the optical semiconductor element 3 and the end of the optical fiber 1 are covered and sealed with a transparent resin material 4, the optical fiber 1 has a lens, the refractive index of the convex lens 2 of the optical fiber 1 is larger than the refractive index of the transparent resin material 4. The effect of the convex lens 2 is preserved even in the resin sealed type optical module because the refractive index of the convex lens 2 of the optical fiber 1 is larger than the refractive index of the transparent resin material 4, a light beam is refracted in the sealed resin and focused on the core of the optical fiber, thus the reduction in the coupling efficiency (optical output) due to the resin sealing is prevented. COPYRIGHT: (C)2006,JPO&NCIPI |
