| 摘要 |
PURPOSE:To miniaturize an optical coupler, to simplify a surplus length processing and to simplify a production process by providing an optical coupler module formed as a chip, connecting the module with a connector and also linking the distance between connectors with an optical fiber ribbon. CONSTITUTION:The optical branching unit is provided with a multi-core connector 18A with four cores stored used as a communication port, a multi-core connector 18B with eight cores stored used as an inspection port, multi-core connector modules 18C and 18D with eight cores stored and connected with a waveguide type optical module 22 where an optical coupler unit 7 is arranged, four-core optical fiber ribbon 19, a single-core connector 20 used as a communication port, a surplus length tray 21 and a connecting pin 23 for positioning the optical coupler module 22 and the multi-core connector modules 18C and 18D. And the waveguide type optical coupler module 22 is the chip with four integrated cores, and the multi-core connector modules 18C and 18D are connected with the module 22. |
