special fiber

It is a general term for optical fibers with special functions other than conventional communication fibers, usually made of special materials and used in a specific wavelength range.

Compared with traditional communication fibers, special fibers have great differences in doping elements, structural design, manufacturing process, mechanical properties, optical properties, operating wavelengths, environmental adaptability, etc. There are many types of products, and they can be applied in a wide range of markets. develop rapidly.

Conventional fiber consists of three parts:

●Core

●Cladding

●Coating

→The coating of conventional optical fiber consists of two parts

Specialty fibers contain a variety of irregular, multi-layer structures

Fiber Geometry

■The geometric size of the core layer, cladding layer and coating layer of the reaction fiber

■It is the most basic standardized parameter of optical fiber, which directly reflects the manufacturing process of optical fiber

■Important indicators for directly judging the qualification and quality of optical fibers

■Mainly contains

 ⊙Diameter deviation

 ⊙Concentricity deviation

 ⊙Out-of-roundness deviation

Specialty Fiber Testing - Arden Corporation

Specialty Fiber Testing - Arden Product Classification and Evolution

Specialty Fiber Testing - Arden FGC

FGC-G is a high-speed automatic test system for testing optical fiber section geometry

It uses the Benchmark Test Method (RTM) described in the standard IEC-60793-1-20 Annex B: Video Grayscale Technology

FGC-G provides direct measurement of glass fiber geometric parameters, including core diameter, core out-of-roundness, cladding diameter, cladding out-of-roundness and core-to-cladding concentricity

Special fiber testing - Arden FGC product model introduction

FGC model classification introduction

*FGC-GT      Small size geometric parameter tester, maximum scene  600um

*FGC-GS      Large size geometric parameter tester, the largest scene  1200um

*FGC-GA      Fiber Array Geometry Tester, Maximum Array Width 27mm

*FGC-P          Coating geometric parameter tester for testing coating

Specialty Fiber Testing-Arden FGC Product Features

The product features are as follows

Standards Compliant – IEC-60793-1-20 and IEC-61745

Measure various special fibers such as octagonal fibers and double-clad fibers, etc.

Darkfield illumination method gives clear image of fiber end face

Compact, robust and reliable for production line use

Highly reproducible geometric measurements in a short period of time

Traceable Calibration (NPL)

Wide range of fiber holders including Arden and Fujikura etc.

Built-in LEDs meet unified injection conditions for optical core testing

Special Fiber Test-FGC Software Interface

Important test metrics:

*Core diameter

*Clad diameter

*Core out of roundness

*Clad non-roundness

*Core package concentricity

*Inscribed circle diameter

*Circumscribed circle diameter

*Pair center distance

*Center distance between opposite sides