Views: 0 Author: Site Editor Publish Time: 2024-06-26 Origin: Site
Optical fibers can be classified into single-mode fibers and multi-mode fibers. Single-mode fibers have a core diameter of about 1-10μm and transmit a single mode at a given operating wavelength, suitable for high-capacity long-distance communication systems. Multi-mode fibers can transmit multiple modes of light waves, with core diameters of about 50-60μm, and have lower transmission performance than single-mode fibers.
Layer-stranded and skeleton structures.
Core, fiber paste, sheath material, and PBT (Polybutylene Terephthalate).
It refers to protective elements (usually steel wires or steel belts) used in special-purpose optical cables (such as submarine cables), attached to the inner sheath of the cable.
Insertion loss and return loss.
By transmission medium (single-mode or multi-mode), structure (FC, SC, ST, D4, DIN, Biconic, MU, LC, MT), and ferrule end-face shape (FC, PC/UPC, APC).
G.652 conventional single-mode fiber, G.653 dispersion-shifted single-mode fiber, and G.655 non-zero dispersion-shifted fiber.
PON is a fiber loop optical network in local access networks, based on passive optical components like couplers and splitters.
PC/UPC/APC Fiber End-face The end-face of fiber connectors can be PC, UPC, or APC. PC and UPC have spherical end-faces parallel to the ceramic body end-face, with industrial standard return losses of -35dB and -50dB, respectively. UPC is more commonly used. APC has an 8-degree angled end-face to reduce reflection, with an industrial standard return loss of -60dB.
An optical coupler (or splitter) splits the optical signal from one fiber into multiple fibers. The main types are fused biconical taper (FBT) splitters and planar lightwave circuit (PLC) splitters.
