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)
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