Optical transmission system

摘要

An optical transmission system for optically transmitting information between apparatuses via an optical transmission path. The system includes: a sending unit that emits, to the optical transmission path, excitation light for detecting an inter-apparatus connection via the path; a responding unit that receives the excitation light from the path and emits detection light to the path using light energy of the excitation light; a response receiving unit that receives the detection light from the path and outputs a detection light current; a detecting unit that detects presence/absence of the inter-apparatus connection based on the detection light current; a light signal transmitting unit that emits, to the path, a light signal for optically transmitting the information based on the detection result by the detecting unit; and a light signal receiving unit that receives the light signal from the path.

主权项

1. An optical transmission system for optically transmitting information between apparatuses via an optical transmission path, comprising:
a sending unit that is operable to emit, to the optical transmission path, excitation light for detecting an inter-apparatus connection via the optical transmission path; a responding unit that is operable to receive the excitation light from the optical transmission path and emit detection light to the optical transmission path using light energy of the excitation light; a response receiving unit that is operable to receive the detection light from the optical transmission path and output a detection light current; a detecting unit that is operable to detect a presence or an absence of the inter-apparatus connection based on the detection light current, and generate a detection result; an optical transmission light signal transmitting unit that is operable to emit, to the optical transmission path, a light signal for optically transmitting the information based on the detection result by the detecting unit; and an optical transmission light signal receiving unit that is operable to receive the light signal from the optical transmission path, wherein the responding unit includes a wavelength conversion element that absorbs at least part of the excitation light and emits the detection light having a peak wavelength being different from a peak wavelength of the excitation light, and the response receiving unit includes a filter that blocks the excitation light and allows the detection light, which has the peak wavelength different from the peak wavelength of the excitation light, to pass.