Keysight (Agilent) 81401A

| Attribute | Value |
|---|---|
| Wavelength Range | 1260 nm to 1640 nm |
| Output Power | Up to +13 dBm |
| Power Stability | ±0.005 dB over 1 hour |
| Wavelength Accuracy | ±0.01 nm |
| Linewidth | Less than 100 kHz |
| Modulation Frequency | DC to 200 kHz internal modulation |
| Optical Interface | FC/APC connector (standard) |
| Tuning Speed | 50 nm/s continuous tuning |
| Side Mode Suppression Ratio | Greater than 50 dB |
| Power Supply / Form Factor | Mainframe module compatible with 8140x series mainframes |
| Model | 81401A |
|---|
The Keysight (Agilent) 81401A Optical Head delivers precise power measurements for fiber optic systems, compatible with Keysight lightwave mainframes. Designed to ensure high accuracy across multiple wavelengths, it is ideal for critical optical power detection tasks requiring stable and repeatable results. Its integration supports comprehensive test setups in research and telecommunication applications.
Engineered for versatility, the 81401A is optimized for laboratory environments and network testing. It ensures minimal signal disruption while enabling accurate power assessment in real-time operations.
Testwall can supply the used Keysight (Agilent) 81401A, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 81401A.





