Coupling structure based on single-fiber bidirectional device and light spot coupling method

• Main Authors: WANG JINPING, QIU DEMING
• Format: Patent
• Language: Chinese; English
• Published: 26.01.2024
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The coupling structure comprises a tube base, a tube cap fixed on the tube base and matched with the tube base, a photodiode and a light source arranged outside the photodiode, a spherical lens is arranged on the surface of the tube cap, and a transmitting end, a receiving end and a light splitting diaphragm are arranged on the surface of the tube base. The photodiode is connected with an external light beam quality analyzer through a data line and a power line. The mode that the transmitting end is powered on and the receiving end is not powered on is adopted, the trouble of repeated routing of the receiving end is avoided, the photodiode with the diameter being 10 mm is adopted for searching light spots of the transmitting end, compared with an existing optical fiber, the size of the photodiode is far larger than the fiber core size of the optical fiber, the PD sensitivity is high, light searching is facilitated, and therefore the optical coupling efficiency is improved. 本发明涉及一种基于单纤双向器件的耦合结构，包括管座、固定在管座上并与其匹