Optical transmission system and multi-core optical fiber

摘要

An optical transmission system includes an optical transmitting unit that outputs at least one optical signal having a wavelength included in an operation wavelength band and a holey fiber that is connected to the optical transmitting unit. The holey fiber includes a core and a cladding formed around the core. The cladding includes a plurality of holes formed around the core in a triangular lattice shape. The holey fiber transmits the optical signal in a single mode. A bending loss of the holey fiber is equal to or less than 5 dB/m at a wavelength within the operation wavelength band when the holey fiber is wound at a diameter of 20 millimeters.

主权项

1. An optical transmission system comprising:
an optical transmitting unit that outputs at least one optical signal having a wavelength included in an operation wavelength band; an optical fiber that is connected to the optical transmitting unit, the optical fiber including a plurality of cores separated from each other through each of which the optical signal is transmitted, and a cladding formed around the cores; an applying unit that intentionally applies any one of a bend or a lateral pressure or both to the optical fiber to suppress interferences between the cores; an optical multiplexing unit that multiplexes optical signals output from the optical transmitting unit for inputting the optical signals to the cores of the optical fiber; an optical demultiplexing unit that demultiplexes the optical signals transmitted through the optical fiber; and an optical receiving unit that receives the optical signals demultiplexed by the optical demultiplexing unit.