Large Core Fiber Patch Cord

Introduction

Large-core fiber patch cords usually have core diameters ranging from 105 µm to 1000 µm or even larger. Unlike standard communication fibers (single-mode 9 µm, standard multimode 50/62.5 µm), it is primarily designed to deliver optical power/energy, instead of transmit data signals.

The difference compared with the standard communication fibers

Standard communication patch cord:Designed for low attenuation, low dispersion, and signal integrity, they are used to carry high-frequency modulated data signals.

Large-core fiber patch cord:By increasing the core cross-sectional area, the optical power density per unit area is reduced, thereby enabling the safe transmission of high-power lasers ranging from hundreds of milliwatts to several kilowatts.

Application

High-power laser delivery: industrial laser welding, cutting, and marking; medical surgical lasers (e.g., Holmium and Thulium lasers for lithotripsy and tissue resection).

Pump light delivery: in fiber lasers and ytterbium-doped fiber amplifiers (YDFAs), the energy from semiconductor pump sources is injected into the gain medium.

Spectroscopy and Sensing: optical path connections for instruments such as spectrometers and optical power meters; optical signal acquisition in the UV/VIS/NIR bands.

Illumination and Special Bands: energy and signal transmission across various bands from ultraviolet (UV) to infrared (IR).

Usage Precautions

Endface Cleaning: Before use, the ferrule endface must be wiped with alcohol and absorbent cotton. Dust and oil contamination can degrade optical coupling and even burn the endface.

Avoid Direct Viewing: During laser transmission, it is strictly prohibited to look directly at the fiber endface to prevent retinal damage.

Bending Radius: Avoid excessive bending; otherwise, optical attenuation will increase.

Thermal Design: In high-power scenarios, an optional epoxy-free process inside the connector enhances heat dissipation and extends service life.

Ordering Information：HC-LCFPC-A-B-C-D-E-F