Optical transmission structural body, optical waveguide, optical waveguide formation method, and optical wiring connection body

#The present invention relates to an optical transmission structural body, an optical waveguide, an optical waveguide formation method and an optical wiring connection body.

#Recently, fields of optical communication and optical information processing using optical techniques as well as fields of electronic equipment and optical equipment have rapidly developed, and it is an important problem to develop techniques for connecting various types of optical devices. Conventionally, the optical devices of various types are connected to each other through an optical wiring such as an optical fiber or the like. For such connection, quite high positional accuracy is required. Since an operation for such connection is carried out either manually or by means of highly accurate alignment equipment, the operation has disadvantageously caused an increase in connection cost.

#In order to solve this problem, a technique for a self-organizing optical waveguide has been developed. According to this technique, an end of an optical wiring or the like to be connected to an optical device is immersed in a photosensitive composition, and a photosensitive material is irradiated with light through this optical wiring or the like. The photosensitive material is thereby gradually photosensitized and a core part of an optical waveguide is formed on a tip end of this optical connection end. Thereby, even without particularly expensive alignment equipment, an optical waveguide constituted to be able to transmit an optical signal between the optical wiring and the optical device can be formed, and the problem that causes the increase in connection cost can be solved.

#FIG. 1 is a partly cross-sectional view schematically showing one embodiment of an optical transmission structural body according to the first aspect of the first group of the present invention.

#FIGS. 2(a) to 2(c) are partly cross-sectional views each schematically showing another embodiment of the optical transmission structural body according to the first aspect of the first group of the present invention.

#FIG. 3 is a partly cross-sectional view schematically showing still another embodiment of the optical transmission structural body according to the first aspect of the first group of the present invention.

#1001, 1011, 1021, 1031 photosensitive composition 1002, 1012, 1012′, 1022, 1022′, 1032 optical wiring (optical fiber) 1003, 1013, 1023, 1033 core 1004, 1014, 1024, 1034 core part 1005, 1015 ultraviolet irradiation device 1100 optical transmission structural body 1102 optical wiring 1104 core part 4100, 4110, 4120 optical waveguide 4011, 4021 photosensitive composition 4012, 4022 optical fiber 4013, 4023 core 4014, 4024 core part 4105 cladding part 5001, 5021, 5031, 5041 photosensitive composition 5002, 5022, 5032, 5042 optical fiber 5003, 5023 core 5004, 5024, 5034, 5044 core part 5007 lens 7010 tape-shaped fiber (a plurality of optical wirings) 7012 high pressure mercury lamp (light source) 7013, 7018 V-groove substrate for optical fiber 7014 UV-cured resin (photosensitive composition) 7015, 7019 V-groove pressing plate

#First, an optical transmission structural body according to a first aspect of a first group of the present invention will be described.

#The optical transmission structural body according to the first aspect of the first group of the present invention is constituted such that: