The Keysight (Agilent HP) 81536A is a high-sensitivity InGaAs optical power sensor module designed for the HP 8153A Lightwave Multimeter mainframe. It provides high-accuracy optical power measurements over a wavelength range of 800 to 1700 nm, supporting both single-mode and multimode fiber types.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Internal mainframe interface (GPIB and RS-232 available via host mainframe) |
| Display | None (utilizes host mainframe display) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered directly by host mainframe |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 75 × 32 × 335 |
| Weight | 0.5 |
| Shipping Weight | 1.2 kg |
Optical Performance Specifications
| Parameter | Value |
|---|---|
| Wavelength Range | 800 to 1700 nm |
| Detector Type | InGaAs |
| Power Measurement Range | -70 to +3 dBm |
| Maximum Safe Input Power | +10 dBm |
| Calibration Uncertainty | ±2.5% (1000 to 1600 nm, at reference conditions) |
| Power Linearity | ±0.05 dB (+3 to -60 dBm), ±0.15 dB (-60 to -70 dBm) |
| Return Loss | > 40 dB |
Measurement and Dynamic Characteristics
| Parameter | Value |
|---|---|
| Noise (Peak-to-Peak) | < 50 pW (1200 to 1600 nm, 1 s averaging time) |
Optical Interface and Compatibility
| Parameter | Value |
|---|---|
| Compatible Fiber Types | 9/125 µm to 100/140 µm |
| Maximum Numerical Aperture | 0.3 |
| Connector Adapter Interface | HP 81000xI series (e.g., FC, SC, ST, DIN adapters) |
Mainframe Integration and Interface
| Parameter | Value |
|---|---|
| Compatible Host Mainframes | HP / Agilent 8153A Lightwave Multimeter |
| Required Slot Width | 1 slot |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 °C to +70 °C |
| Operating Humidity | < 95% R.H. (0 °C to 40 °C, non-condensing) |
Operating Features
| Parameter | Value |
|---|---|
| Warm-up Time | 40 minutes |
Optical Specs
| Parameter | Value |
|---|---|
| Reference Wavelengths | 1300 nm, 1550 nm |
Performance
| Parameter | Value |
|---|---|
| Polarization Dependence | < ±0.02 dB (1250 to 1580 nm) |
| Temperature Dependence | < ±0.03 dB (1200 to 1600 nm, 0 to 55 °C), < ±0.15 dB (800 to 1700 nm, 0 to 55 °C) |
| Detector Active Diameter | 2 mm |
| Total Operating Uncertainty | ±4% (1000 to 1600 nm, +3 to -60 dBm), ±7% (800 to 1700 nm, +3 to -60 dBm) |
| Averaging Time Range | 20 ms to 10 s (selectable) |
| Range Selection | Automatic or manual (7 ranges) |
Analog Output
| Parameter | Value |
|---|---|
| Analog Output Voltage | 0 to 2 V (into ≥ 10 kΩ, proportional to power in current range) |
| Analog Output Bandwidth | 3 Hz (ranges 1 to 4), 300 Hz (ranges 5 to 7) |
Technology
InGaAs Optical Sensor
Applications
Optical Power Measurement