Tips for Polishing MPO and MTP Connectors: Recommended Process

Polishing MPO (Multiple-Fiber Push-On/Pull-Off) and MTP (Mechanical Transfer Pull-Off) connectors is a meticulous process that ensures optimal performance and reliability in high-density networking environments. A well-executed polishing process minimizes signal loss and maximizes data transmission efficiency. Below are some essential tips and a recommended process for polishing MPO and MTP connectors effectively.

Recommended Polishing Process

1. Epoxy Removal

Materials: SC15, SC3 Lapping Film

The first step in polishing MPO and MTP connectors is the removal of excess epoxy. This step is crucial to prepare the fiber end face for subsequent polishing stages.

• SC15 Lapping Film: Begin with SC15 lapping film to remove the bulk of the epoxy. This coarse grit film is effective for quickly cutting down the excess epoxy and bringing the fiber closer to the correct height.
• SC3 Lapping Film: Follow up with SC3 lapping film, which has a finer grit, to refine the removal process and ensure the epoxy is entirely removed without damaging the fiber.

Procedure:

1. Secure the connector in a polishing fixture.
2. Apply even pressure while moving the connector in a figure-eight pattern on the SC15 lapping film.
3. Once the bulk of the epoxy is removed, switch to the SC3 lapping film and continue polishing with the same figure-eight motion to smooth out the surface.

2. Fiber Height & Core Dip Adjustment

Materials: AO1 Flocked Film

The next step focuses on adjusting the fiber height and addressing any core dips. This step ensures that the fiber ends are flush with the ferrule surface and that the core is perfectly aligned.

• AO1 Flocked Film: Use the AO1 flocked film for precise control over the fiber height and core dip. The flocked film is particularly effective in achieving a smooth and uniform surface.

Procedure:

1. Ensure the connector is properly secured in the polishing fixture.
2. Use the AO1 flocked film to polish the fiber ends, maintaining a consistent figure-eight motion.
3. Apply gentle and uniform pressure to achieve the desired fiber height and smooth core surface.

3. Final Polishing

Materials: CO1 Flocked Film

The final polishing stage is crucial for achieving a super-fine and consistent finish on the fiber ends. This step ensures that the connector performs optimally, with minimal signal loss and high return loss.

• CO1 Flocked Film: The CO1 flocked film is used for the final polishing stage. This film is designed to provide a high-quality, mirror-like finish on the fiber end faces.

Procedure:

1. Secure the connector in the polishing fixture.
2. Using the CO1 flocked film, polish the fiber ends with a light, consistent pressure.
3. Perform a figure-eight motion to ensure an even and smooth finish across all fiber end faces.
4. Inspect the polished connectors using a fiber optic microscope to check for any remaining imperfections.

Additional Tips for Effective Polishing

1. Maintain Cleanliness: Ensure that the polishing films and fixtures are clean and free from debris. Contaminants can cause scratches and defects on the fiber end faces.
2. Consistent Pressure and Speed: Use a polishing machine that allows you to control the pressure and speed. Consistency in these parameters is key to achieving a uniform polish.
3. Regular Inspection: Inspect the connectors at each stage of the polishing process to ensure that they meet the required standards. Address any issues immediately to avoid defects in the final product.
4. Use Quality Polishing Films: High-quality polishing films from reliable suppliers like XYT ensure consistent performance and superior results.

Conclusion

Polishing MPO and MTP connectors is a detailed process that requires precision and the right materials. By following the recommended process using SC15, SC3, AO1, and CO1 flocked films, you can achieve a high-quality finish that ensures optimal connector performance. Adhering to these tips and maintaining cleanliness and consistency throughout the process will result in connectors that provide reliable and efficient data transmission.

For more information on polishing solutions and products, visit our website at polishingfilm.com or contact us at [email protected] | +8615702088819.