In essence, an OXC uses photonic switching fabric to route wavelength channels from any incoming fiber to any outgoing fiber, typically by demultiplexing each WDM signal into individual wavelengths, directing them through a switch matrix, and then re-multiplexing onto output. In essence, an OXC uses photonic switching fabric to route wavelength channels from any incoming fiber to any outgoing fiber, typically by demultiplexing each WDM signal into individual wavelengths, directing them through a switch matrix, and then re-multiplexing onto output. Optical cross-connect (OXC) is a more flexible all-optical grooming mode. Compared with traditional ROADM based on separate boards and inter-board fiber patch cords, OXC uses integrated interconnections to build an all-optical switching resource pool, achieving highly integrated, fiber. An optical cross-connect (OXC) is a device used by telecommunications carriers to switch high-speed optical signals in a fiber optic network, such as an optical mesh network. In the 1980s, when transmission speeds supported by optical fibers increased from 45 Mbit/s to 2. These features assure the. Within OTN, one of the most critical building blocks is the Optical Cross-Connection (OXC), a technology that enables dynamic, high-capacity, and protocol-transparent switching of optical channels.