STRUCTURE OF REFERENCE MEASURING INSTRUMENT
• Unit of broadband sources of optic emission;
• Unit of interferometer and controller of polarization state;
• Unit of samples of polarization modal dispersion in optic fiber;
• Pc.
DESIGNED FOR
Reproducing, storing and transmitting of PMD unit to the working standards of PMD unit and high-precision PMD measuring instruments, calibration and verification of PMD measuring instruments, applied in production and operation of fiber-optic communication lines.
SPHERES OF APPLICATION
Metrological support: certification, calibration, verification and testing of pmd unit and high-precision pmd measuring instruments.
| Method of polarization modal dispersion measurement in optic fiber (PMD) | interferometric |
| Operating wavelength at polarization modal dispersion measurement, nm | (1310 ± 30) (1550 ± 30) |
| Reproducable PMD values, ps: | |
| •in regime of weak mode coupling •in regime of strong mode coupling |
0.5; 5.0; 10.0; 120 1 |
| Residual systematic measurement error PMD, ps | 0.007 |
| Mean square deviation of measurement result PMD, ps | 0.005·τ, where τ – PMD value |
| Insertion loss*, dB, not more than | 10 |
*Characteristics of reference measuring instrument can be specified by request of the customer.
