Shanghai Gengyun Industrial Co., Ltd
Introduction to Step-Index Multimode Preforms The step-index multimode fiber preform creates fiber designed for short-distance high-bandwidth applications. This preform type features a distinct boundary between core and cladding materials. Light rays travel through the core in multiple paths or modes. These preforms…
Introduction to Photosensitive Preforms The photosensitive fiber preform rod creates fiber that responds to ultraviolet light. High germanium doping makes the glass refractive index change under UV exposure. This property allows writing permanent gratings into the fiber core. These gratings act as…
Introduction to PLC Splitter Modules The single mode pigtail type fiber optic PLC splitter module divides one optical signal into multiple outputs. PLC stands for planar light wave circuit, a chip-based splitting technology. This module includes factory-attached pigtail fibers for easy field…
Creep Fundamentals for Aramid High strength high-temperature resistant aramid yarn exhibits time-dependent deformation under sustained load. This phenomenon, called creep, affects long-term cable performance. The yarn gradually elongates while holding constant tension. Understanding creep behavior is essential for predicting cable sag…
Fundamentals of Sag and Tension Installing all-dielectric self-supporting ADSS power optical cable requires precise sag and tension calculations. The cable must hang with enough sag to limit tension under worst-case loads. Too much sag risks contact with conductors or ground clearance violations.…
Introduction to Germanium-Doped Preforms The germanium-doped graded-index fiber preform represents an advanced multimode design. Germanium raises the refractive index of silica glass when added as a dopant. The concentration of this dopant varies across the preforms core. This variation creates a parabolic…
Introduction to TPU Sheath Materials The environmentally friendly TPU elastomer cable sheath combines flexibility with exceptional durability. Thermoplastic polyurethane offers outstanding abrasion and oil resistance. The flame retardant version maintains these properties while meeting fire safety standards. This material serves demanding applications…
Quadrupolar Winding Principles Standard high precision free-standing fiber coils for Φ120mm FOGs use quadrupolar winding patterns. This pattern alternates fiber layers to cancel thermal effects. The winding sequence reverses direction at specific layer boundaries. Proper tension control maintains pattern accuracy throughout…
PLC Splitter Performance Parameters Single mode pigtail type fiber optic PLC splitter modules have several key performance specifications. Insertion loss measures the optical power loss through the device. Uniformity describes loss variation between different output ports. Return loss indicates how much…
Return Loss Fundamentals High tensile strength temperature stable fiber optic jumpers must maintain good return loss performance. Return loss measures how much light reflects back toward the source. Reflections can disrupt laser operation and cause signal errors. Connector end face geometry…