Optical transmitting/receiving method and system, and optical communication network

摘要

An optical transmitting, receiving method in transmitting/receiving optical beams including optical signals via a space transmission path between an optical transmitting apparatus and an optical receiving apparatus, comprising the steps of: receiving light at the optical transmitting apparatus from another node via an optical fiber transmission path; emitting the received light as the optical beam from the optical transmitting apparatus into the space transmission path; condensing the emitted optical beam at the optical receiving apparatus; and transmitting the condensed optical beam from the optical receiving apparatus to another node via an optical fiber transmission path.