fiber optic connector endface inspection fiber optic connector endface inspection

“QUALITY COMES NOT FROM INSPECTION, BUT FROM IMPROVEMENT OF THE PRODUCTION PROCESS.”

-DR. W. EDWARDS DEMING


To XFS, Dr. Deming’s textbook remark is not a theory, but a practice we have been conducting every single day. We work on the principle that quality comes during the process of manufacturing, not after the fact. Tremendous hard work and resources have been dedicated to the realization of this level, where we don’t have to rely on the final testing for ensuing the quality of our finished products, instead the production process itself will ensure the quality. Below are some of the practises we have adopted persistently:


  • To guarantee a homeostatic production environment and maintain the highest levels of specification and precision, all of our tools and machines are serviced one or more times per day for ensuring they are in the best working condition.

  • Over ten quality control points have been employed throughout the manufacturing process, most of them are stricter than industry standards. Only end products that pass all of these control points are cleared for shipment.


This integrated approach to quality control means that our manufacturing process is the most efficient in the business, saving significant time and cost. That is one of our secrets for producing Grade-A products at Grade-C cost.

NEVER STOP IMPROVING

In XFS, we never stop improving the quality of our product. This is how we differentiate ourselves from the competition and is also why we can remain on top of the game for so many years.

We use advanced production technologies and strict control system to ensure high quality. More importantly the quality-oriented attitude has been so entrenched in the mind of every single employee.



WE ALWAYS ENCOURAGE OUR CUSTOMERS TO USE HIGH QUALITY PRODUCTS, SINCE THE COST OF NETWORK DOWNTIME IS USUALLY VERY SIGNIFICANT AND CAN HARDLY JUSTIFY THE SAVING FROM USING LOW QUALITY COMPONENTS.

- Charles Sun, CEO

THE INDUSTRY’S STRICTEST QUALITY STANDARDS

We believe building a top-notch quality fiber optic product is the combination of fine craftsmanship and deep technical knowledge, and on the top of that, we have put considerable resources on execution and efficiency improvement. The quality standards which XFS has set are far more stricter than industry’s norm, and by steadfastly adhering to our standards, we can ensure to have the best quality products in the market.



fiber optic connector endface geometry measurement

End-face Geometry Inspection

INDUSTRY’S MOST STRICTEST:


  • Radius of curvature: 7 ≤ x ≤ 9 (APC)
  • Apex offset (μm): 0 ≤ x ≤ 30
  • Fiber height (nm): -30 ≤ x ≤ 30
  • APC angle (°): 7.8 ≤ x ≤ 8.2
  • Key error (°): -0.2 ≤ x ≤ 0.2

To ensure proper physical contact between connectors under mating, connectors' end-face geometric requirements are important for the quality control of fiber connectivity products. There is a strong correlation between the connector's end-face geometry and the variation of the insertion loss. For that it is critical to have all of our products passed 3D geometric measurement to guarantee the high optical performance.


fiber optic connector endface inspection

End-face Quality Inspection

INDUSTRY’S MOST STRICTEST:


  • Zero defects on the ENTIRE ferrule’s end-face (core, cladding, adhesive, contact zone and the rest of ferrule)

Before shipment, 100% of our connectors’ surfaces will be visually inspected by using 400x microscopes to ensure all of the surfaces are scratch-, damage- and dust-free. Scratches through the fiber core can not only affect optical performance, but also damage any other fiber end-face they contact. To avoid that, XFS has strictly adhered to our standard polishing and cleaning procedures, which have also been refined constantly.


fiber optic connector attenuation and return loss measurement

Optical Performance Inspection

INDUSTRY’S MOST STRICTEST:


  • SM single-fiber connector: random mated IL avg. ≤ 0.07dB, for 97% ≤ 0.12 dB
  • SM MPO/MTP® connector: IL typ. ≤ 0.1dB, max. ≤ 0.25dB

Insertion Loss (IL) expresses the reduction in optical power across the junction caused by applying a connector or splice, while Reflection Loss (RL) refers to the reduction in reflected energy. XFS has adopted the most advanced equipment from NTT-AT for performing the critical IL/RL Testing, which every single connector is measured before delivery to the customers.

TESTING EQUIPMENTS

We have a variety of testing equipment for verifying the optical performance and environmental and mechanical reliability of our fiber interconnect products. We also regularly send our products for testing at 3rd-party companies including UL, SGS and Telcordia/Ericsson.

Intermateability Test
Optical Performance Test
Thermal Age Test
Thermal Cycle Test
Humidity Aging Test
Humidity / Condensation Cycling Test
Vibration Test
Flex Test
Twist Test
Proof Test
Ferrule Endface Geometry Test
Connector Installation Test
Extended Thermal Age Test
Extended Humidity Test
Extended Thermal Cycle Test


IL/RL inspectorIL/RL inspector
24c-MPO IL/RL inspector24c-MPO IL/RL inspector
Multi-wavelength IL/RL inspectorMulti-wavelength IL/RL inspector
3D interferometer -single core3D interferometer -single core
3D interferometer -multi core3D interferometer -multi core
End-face inspectorEnd-face inspector
End-face inspector -MPOEnd-face inspector -MPO
Ferrule oncentricity & OD inspectorFerrule oncentricity & OD inspector
Connector tunerConnector tuner
Multi channel optical measurementMulti channel optical measurement
PDL inspectorPDL inspector
Spectrum analyzerSpectrum analyzer
Temperature- & humidity-cycle testTemperature- & humidity-cycle test
PCT accelerated aging testPCT accelerated aging test
Tensile strength testerTensile strength tester
Vibration testerVibration tester

PROCESS CONTROL SYSTEM (PCS)

Fiber connectivity products have numerous specs that are necessitated by customers’ distinct requirements. XFS’ self-developed Process Control System (PCS) divides each order into batches (hooks) and matches them with their respective bar codes. Through bar-code management, the products’ status and progress can be traced and analyzed in real-time, significantly increasing efficiency and yield. By going down to each production step and in-charged operator, customers can login to our website in order to check the most detailed status of their products anytime and from anywhere in the world.