Vchung Tech has passed ISO9001:2018 quality system certification, welcome customers to censor. All products are in compliance with RoHS Reach CE requirements. Raw materials are sourced from well-known manufacturer brands in China and globally. All products are produced and inspected according to international standards.
MT 3D Interferometer Quality Control
In our production line and quality control center, there are more than six multifiber interferometers for MT 3D inspection.
All of our MT ferrules are 100% tested by interferomer to meet and exceed the international standard IEC 61755-3-31.
All 3D interference report is automatically saved and can be sent to the customer for review. As follow:
MT IL/RL Test Quality Control
In our production line and quality control center, there are more than six multifiber Insertion Loss / Return Loss Tester for test MT IL and RL. All connectors are 100% tested insertion loss and return loss according to international standard IEC 61754-7 or special customer requirements.
| Insertion Loss and Return Loss Test Standard | ||||||||
| Connector Type | Fiber Type | Single-mode Fiber | Multimode Fiber | |||||
| Test wavelength | 1310nm & 1550nm | 850nm & 1300nm | ||||||
MPO or MTP connector | Standard Insertion Loss | Typical≤0.50dB, Max≤0.70dB | Typical≤0.50dB, Max≤0.70dB | |||||
| Return Loss | RL.≥55dB, typical＞58dB | RL.≥25dB, typical＞28dB | ||||||
| Low Insertion Loss | Typical≤0.25dB, Max≤0.35dB | Typical≤0.25dB, Max≤0.35dB | ||||||
| Return Loss | RL.≥55dB, typical＞58dB | RL.≥25dB, typical＞28dB | ||||||
LC/SC/FC/ST connector | Standard Insertion Loss | Typical≤0.30dB, Max≤0.20dB | Typical≤0.30dB, Max≤0.20dB | |||||
| Return Loss | APC. RL.≥60dB, UPC. RL.≥60dB | RL.≥25dB, typical＞28dB | ||||||
| Low Insertion Loss | Typical≤0.15dB, Max≤0.20dB | Typical≤0.15dB, Max≤0.20dB | ||||||
| Return Loss | APC. RL.≥60dB, UPC. RL.≥60dB | RL.≥25dB, typical＞28dB | ||||||
IL/RL Testers Show
All of our multifiber test equipment, including single-mode and multimode, are from testers manufactured by JGR, a test equipment manufacturer in Ottawa, Canada.
The figure below shows how we tested the insertion loss of the MPO to MPO patch cords, MPO to LC breakout patch cords, LC to LC patch cords, and plug type fixed attenuators. This is how our production line operates.
MT End-face Inspection Quality Control
Production process is generally: Polishing, endface inspection, 3D interference test, Insertion loss and Return loss test, endface inspection, packaging. We use a 400x endface inspector to make sure the endface is clean.
