Terahertz polarization beam splitter based on dual-core negative curvature optical fiber

• Main Authors: HAN DONGDONG, GE HAIBO, HUI ZHANQIANG, GONG JIAMIN
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The invention discloses a terahertz polarization beam splitter based on a dual-core negative curvature optical fiber, and belongs to the technical field of optical fiber communication. The polarization beam splitter comprises a base circular pipe and fiber core separation structures. A plurality of large cladding pipes are connected to the inner wall of the base circular pipe along the circumference at equal intervals in an internally tangent mode, and the large cladding pipes are symmetrically distributed on the inner wall of the base circular pipe. The inner walls of the large cladding pipes are connected with embedded circular ring pipes in an internally tangent manner. The number of the fiber core separation structures is two. The fiber core is divided into a core A and a core B through the two fiber core separation structures, so that the coupling lengths of the two kinds of polarized light are different, when x polarized light and y polarized light are input from one fiber core, the y polarized light is