In high-density fiber optic networks, achieving precise geometry and ultra-smooth end-faces on MMC 16/24-fiber APC TMT ferrules requires a systematic lapping and polishing process. Grish’s specialized solution combines graded abrasive films and advanced slurries to optimize performance for multi-fiber connectors.
Grish Lapping and Polishing Process
The four-step procedure ensures optimal ferrule geometry, surface quality, and fiber height uniformity:
1、Bulk Ferrule Shaping with SC16 Lapping Film
Product: GRISH SC16 (16µm Silicon Carbide)
Process: Removes epoxy residue and shapes the ferrule end-face using DI water as a lubricant. Operates at 2 lb pressure, 110 RPM, for 50 seconds per plate.
Outcome: Establishes initial fiber alignment and eliminates major surface irregularities.
2、Pre-Finish Leveling with SC3 Lapping Film
Product: GRISH SC3 (3µm Silicon Carbide)
Process: Refines the surface with DI water at 2 lb pressure and 130 RPM for 130 seconds, ensuring uniform fiber height.
Outcome: Reduces micro-scratches and prepares the surface for final smoothing.
3、Smoothing and Geometry Control with PUMD Pad and AO Slurry
Product: PUMD Pad + AO-1-50B Slurry (Aluminum Oxide)
Process: Operates at 5 lb pressure, 160 RPM, for 140 seconds. The slurry enhances material removal consistency while maintaining the 8° APC angle.
Outcome: Achieves sub-micron surface roughness and tight geometric tolerances.
4、Final Finish with PUMZ Pad and CO Slurry
Product: PUMZ Pad + CO-1-30B Slurry (Colloidal Silica)
Process: High-speed polishing (180 RPM) at 6 lb pressure for 40 seconds, delivering a scratch-free surface.
Outcome: Produces a <0.02µm roughness finish, minimizing back reflection and insertion loss.
Advantages of the Grish Process:
Time Efficiency: Total cycle time under 6 minutes per ferrule array.
Consistency: Automated pressure and RPM settings ensure repeatable results across high-volume production.
The GRISH polishing solution for MMC 16/24-fiber Single Mode APC TMT ferrules is a specialized product designed to meet the demanding requirements of modern fiber optic connectivity.
By providing precise, consistent, and high-quality polishing, it plays a vital role in ensuring optimal performance and longevity of multi-fiber APC connectors in critical communication infrastructures.