Master optical patch cord are required for testing in optical networks, calibration services and for manufacturing fiber optic components. A master patch cord is terminated by master connectors that fulfill the strict demands on geometrical and transmission parameters according to defined specifications.
Feature
In accordance with IEC-61754 standards
Low insertion loss and high return loss
Excellent end face geometry parameters
Variety of connector types: FC,SC,ST,MU,LC
Customized order available upon request
Specification
PC | APC | |
Optical Performance Specification | ||
Insertion Loss SM、MM | ≤ 0.10 dB | ≤ 0.10 dB |
Return Loss SM | ≥ 55 dB | ≥ 65 dB |
Return Loss MM | ≥ 40 dB | — |
Geometric Specification of End-face | ||
Radius of Curvature | 10~20 mm | 8~12 mm |
Apex Offset | ≤ 20 um | ≤ 30 um |
Fiber Height (Spherical ) | ± 50 nm | ± 50 nm |
Angular Offset | 8º±0.2º |
Visual Inspection
Allowed Defects and Scratches
Zone | Description | Diameter | Defects(Diameter) | Scratches(width) |
1a | Core Zone | 0- 25um | none | none |
1b | Cladding Zone | 25- 120um | any﹤2um 5 from 2-5um none﹥5um |
none﹥3um |
– | Adhesive Zone | 120- 130um | any | any |
2 | Contact Zone | 130- 250um | none﹥10um | any |
IEC 61753-1 specifies four Random Mating IL performance grades, of which grade A has yet to be defined.
Attenuation Grade | Attenuation Random Mated IEC 61300-3-34 |
Grade A | Not Defined Yet |
Not Defined Yet | |
Grade B | ≤0.12dB Mean IL |
≤0.25dB Max IL for >97% of samples | |
Grade C | ≤0.25dB Mean IL |
≤0.50dB Max IL for >97% of samples | |
Grade D | ≤0.50dB Mean IL |
≤1.0dB Max IL for >97% of samples |