| Wavelength range (nm) | SMF models: 1250 to 1650 PMF models: 1440 to 1650 a 1250 to 1510 b |
| Attenuation range | IL to 60 dB (typical) |
| Calibrated range | SMF models: Up to 40 dB at 1310 nm and 1550 nm PMF models: Up to 40 dB at 1550 nm a 1625 nm a 1310 nm b |
| Attenuation accuracy (typical) c | ±0.3 dB |
| Insertion loss (IL) | < 2 dB (1 dB typical) |
| Attenuation setting and display resolution | 0.1dB (display resolution: 0.01dB) |
| Polarization dependent loss d | < 0.1 dB |
| PER | SMF models: N/A PMF models: ≥ 18 dB |
| Return loss e | > 50 dB |
| Maximum input power | 2 W (33 dBm) |
| Optical connectors f | FC/APC narrow key |
| * Specifications apply for wavelengths not equal to any water absorption line. Notes a. On PM15 fiber b. On PM13 fiber c. Up to 30 dB attenuation d. Total PDL including both FC-APC connectors e. RL at 1550 nm for SMF and PM15, RL at 1310 nm for PM13 f. PMF: slow axis is aligned to connector key | |
| Product | OSICS ATN — High-power variable optical attenuator |
| Key features | 60 dB attenuation range Low return loss 2 W maximum input power Easy real-time operation |
| Ordering information | OS-ATN-XX-58 |
| Wavelength range and fiber type | F = 1250 - 1650 nm, SMF28 singlemode fiber OES-P = 1250 - 1510 nm, PM13 polarization maintaining fiber SCL-P = 1440 - 1640 nm, PM15 polarization maintaining fiber |
| Connector option | 58 = FC/APC |
| Example | OS-ATN-SCL-P-58 |
| Document reference | SPOSATN.1AN © 2018 EXFO Inc. All rights reserved. Printed in Canada 18/03 |