The HP 8158B is a high-performance optical attenuator designed by Keysight Technologies (formerly Agilent / Hewlett-Packard) for both single-mode and multimode fiber applications. It offers a 60 dB attenuation range with a high-resolution digital display and full remote programability via HP-IB, making it ideal for precision testing in fiber optic communications.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | HP-IB (GPIB) |
| Display | Digital display, range 0.00 to 60.00 dB |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 V AC (+10% / -15%), 48 - 66 Hz, 55 VA max |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 212.3 mm × 88.1 mm × 345.4 mm |
| Weight | 5.3 |
Optical Performance
| Parameter | Value |
|---|---|
| Attenuation Range | 60 dB |
| Attenuation Resolution | 0.01 dB |
| Attenuation Repeatability | 0.04 dB |
| Wavelength Correction Range (Option 001) | 600 nm to 1200 nm |
| Wavelength Correction Range (Option 002) | 1200 nm to 1650 nm |
| Calibrated Wavelength (Option 001) | 850 nm |
| Calibrated Wavelengths (Option 002) | 1300 nm, 1550 nm |
| Maximum Numerical Aperture (NA) | 0.3 |
Optical Connections and Interfaces
| Parameter | Value |
|---|---|
| Connector Interfaces | Diamond HMS-10/HP, DIN 47256 |
Control and Programming
| Parameter | Value |
|---|---|
| Display Range | 0.00 to 60.00 dB |
| Display Resolution | 0.01 dB (minimum step size) |
| Remote Programming | Full HP-IB programmability |
| Attenuation Correction | Wavelength entry in memory for attenuation correction |
Ordering Information and Accessories
| Parameter | Value |
|---|---|
| Option 001 Calibration | 850 nm calibration |
| Option 002 Calibration | 1300 nm and 1550 nm calibration |
Performance
| Parameter | Value |
|---|---|
| Insertion Loss (Option 001) | <= 3.0 dB (with HMS-10/HP connectors) |
| Insertion Loss (Option 002) | <= 4.0 dB (with HMS-10/HP connectors) |
| Maximum Input Power | +20 dBm |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to +75 °C |
| Humidity Range | < 95% R.H. from 0 to 40 °C |
Optical Shutter
| Parameter | Value |
|---|---|
| Shutter Isolation | > 80 dB |
| Shutter Switching Time | < 100 ms |
Power & Electrical
| Parameter | Value |
|---|---|
| Power Consumption | 55 VA max. |
| Line Frequency | 48 Hz to 66 Hz |
Technology
Fiber Optics
Applications
Optical Signal Attenuation / Optical Margining