Abstract: An optical fiber securing structure includes: an optical fiber including a coating, and a coating-removed section in which a partial section of the coating is removed from the optical fiber; a reinforcement member including main surfaces and a groove formed from one of the main surfaces toward an inside of the reinforcement member, where the groove has a pair of side walls and a bottom wall; and a resin member that secures the coating-removed section to the pair of side walls and the bottom wall. A bottom part of the groove that includes the bottom wall has a widthwise cross-sectional shape where the bottom wall constitutes a trapezoidal shape such that a distance between the pair of side walls becomes greater in a direction away from the bottom wall.

Abstract: An optical fiber securing structure includes: an optical fiber including a coating, and a coating-removed section in which a partial section of the coating is removed from the optical fiber; a reinforcement member including main surfaces and a groove formed from one of the main surfaces toward an inside of the reinforcement member, where the groove has a pair of side walls and a bottom wall; and a resin member that secures the coating-removed section to the pair of side walls and the bottom wall. A bottom part of the groove that includes the bottom wall has a widthwise cross-sectional shape where the bottom wall constitutes a trapezoidal shape such that a distance between the pair of side walls becomes greater in a direction away from the bottom wall.

Abstract: There is provided an optical fiber protection structure capable of mitigating deterioration of optical characteristics of an optical fiber under a high-temperature environment and a method of manufacturing an optical element using the same. An optical combiner structure protects bare fiber exposure portions in which bare fibers are exposed from the coverings of optical fibers. The optical combiner structure has a fiber accommodation portion having a fiber accommodation groove that accommodates the bare fiber exposure portions therein, fixation resins filled within the fiber accommodation groove for fixing a portion of the coverings within the fiber accommodation groove, and seal resins for sealing spaces between the bare fibers and the coverings on ends of the bare fiber exposure portions. The seal resins are formed so as to be spaced from an inner surface of the fiber accommodation groove.

Abstract: There is provided an optical fiber protection structure capable of mitigating deterioration of optical characteristics of an optical fiber under a high-temperature environment and a method of manufacturing an optical element using the same. An optical combiner structure protects bare fiber exposure portions in which bare fibers are exposed from the coverings of optical fibers. The optical combiner structure has a fiber accommodation portion having a fiber accommodation groove that accommodates the bare fiber exposure portions therein, fixation resins filled within the fiber accommodation groove for fixing a portion of the coverings within the fiber accommodation groove, and seal resins for sealing spaces between the bare fibers and the coverings on ends of the bare fiber exposure portions. The seal resins are formed so as to be spaced from an inner surface of the fiber accommodation groove.

Abstract: An optical fiber protection structure has a fiber accommodation portion having a fiber accommodation groove formed therein for accommodating at least a portion of optical fibers and first resins filled in the fiber accommodation groove. The first resins are to fix a portion of the optical fibers within the fiber accommodation groove. The optical fiber protection structure has a cover member disposed above the fiber accommodation portion so as to cover the fiber accommodation groove, second resins for allowing the first resins to expand toward the cover member to reduce a stress applied to the optical fibers, and a third resin for fixing the cover member onto the fiber accommodation portion. The second resins have a Young's modulus lower than those of the first resins.

Abstract: An optical fiber protection structure has a fiber accommodation portion having a fiber accommodation groove formed therein for accommodating at least a portion of optical fibers and first resins filled in the fiber accommodation groove. The first resins are to fix a portion of the optical fibers within the fiber accommodation groove. The optical fiber protection structure has a cover member disposed above the fiber accommodation portion so as to cover the fiber accommodation groove, second resins for allowing the first resins to expand toward the cover member to reduce a stress applied to the optical fibers, and a third resin for fixing the cover member onto the fiber accommodation portion. The second resins have a Young's modulus lower than those of the first resins.

Abstract: Object To prevent deformation of locating pins and breakage of the glass substrate on which locating holes are formed. Means for Solving the Problems There is provided an optical module including: a glass substrate that includes an optical-electric-conversion element, that is transparent to either one of light emitted from the optical-electric-conversion element and light received by the optical-electric-conversion element, and in which a locating hole is formed; and an optical component in which a locating pin is formed, the glass substrate and the optical component being positioned by fitting the locating pin to the locating hole through a protective film so that the protective film is in contact with the locating hole and the locating pin.

Abstract: Object To prevent deformation of locating pins and breakage of the glass substrate on which locating holes are formed. Means for Solving the Problems There is provided an optical module including: a glass substrate that includes an optical-electric-conversion element, that is transparent to either one of light emitted from the optical-electric-conversion element and light received by the optical-electric-conversion element, and in which a locating hole is formed; and an optical component in which a locating pin is formed, the glass substrate and the optical component being positioned by fitting the locating pin to the locating hole through a protective film so that the protective film is in contact with the locating hole and the locating pin.