The HP/Agilent 81636B is a fast optical power sensor module engineered for precise power measurements across the near-infrared spectrum. Built on an InGaAs detector element, it delivers measurement accuracy better than ±3% across most of its operating range and supports both single and multichannel configurations within Agilent 816x Lightwave mainframes. The sensor accommodates standard single-mode and multimode fibers up to 62.5 µm and 100 µm core sizes, making it suitable for component characterization, fiber alignment, and production testing in research, development, and manufacturing environments.
Technical Specifications
• Sensor Element: InGaAs
• Wavelength Range: 800 nm to 1650 nm; 1250 nm to 1640 nm
• Measurement Power Range: −80 dBm to +10 dBm
• Measurement Accuracy: ±3% to ±3.5% depending on wavelength band
• Dynamic Range (Manual Mode): >55 dB
• Data Acquisition Time: 25 µs
• Minimum Averaging Time: 25 µs to 100 µs
• Analog Bandwidth: 17 kHz
• Linearity (CW): +10 dBm to −60 dBm
• Polarization Dependence: 40 dB
• Noise (Peak-to-Peak): <20 pW
• Data Logging Capacity: Up to 100,000 measurement samples
• Power Traceability: NIST and PTB calibration
– Key Features
• Accepts multiple optical interface connector types (81000xI series), bare fibers, and open beams
• Real-time analog output for oscilloscope integration
• Hardware-based triggering, filtering, event logic, and timer functions
• Low polarization-dependent loss for accurate multichannel measurements
• Superior noise floor enables detection at −80 dBm
– Typical Applications
• Optical component testing and characterization
• Fiber optic alignment and adjustment
• Multichannel device validation
• Production power monitoring and compliance verification
– Compatibility & Integration
• Compatible with Agilent 8163A, 8153A, and 816x series Lightwave mainframes
• Requires Agilent 81000xI Series optical connectors (sold separately)
• Power requirement: AC 100–240 V ±10%, 50/60 Hz ±5%, 120 VA max (via mainframe)
