The Keysight 86105C is a dual-channel sampling module combining 9 GHz optical and 20 GHz electrical bandwidth for high-speed signal analysis in optical communication systems. It acquires waveforms across 750 to 1650 nm with support for both single-mode and multimode fiber, making it suitable for SONET/SDH and datacom testing up to 11.3 Gb/s. The module integrates into Infiniium DCA/DCA-J and DCA-X mainframes for complete transmitter characterization and compliance validation.
Technical Specifications
Optical Channel
• Bandwidth: 8.5 GHz (9 GHz characteristic)
• Wavelength range: 750 to 1650 nm nominal; calibrated at 850 nm, 1310 nm, 1550 nm (±20 nm)
• Fiber support: Single-mode (SMF) and multimode (MMF) with amplified channel for 9/125 to 62.5/125 fibers
• Connector: FC/PC (user-selectable options available)
• Sensitivity: -21 dBm to -16 dBm typical
• RMS noise: 0.8 to 2.5 µW depending on wavelength and data rate
• Input power limits: 0.5 mW maximum average, 5 mW peak (non-destructive)
• Return loss: >13 dB @ 850 nm, >24 dB @ 1310/1550 nm
Electrical Channel
• Bandwidth: 20 GHz
• Transition time: 28.2 ps (12.4 GHz BW), 17.5 ps (20 GHz BW)
• RMS noise: 0.25 mV (12.4 GHz) / 0.5 mV (20 GHz) characteristic; 0.5 mV / 1 mV maximum
• Input dynamic range: ±400 mV
• Maximum input signal: ±2 V DC
• DC offset range: ±500 mV
• Impedance: 50 ohm nominal
• Reflections: 5% (for 30 ps rise time)
• Input connector: 3.5 mm (male)
– Key Features
• Simultaneous optical and electrical measurement capability
• DC accuracy to ±0.4% of full scale plus ±2 mV at 12.4 GHz and 20 GHz
• Configurable scale factors from 1 mV/div to 100 mV/div
• Rate-dependent filtering for optimized noise performance
• Waveform characterization across extended wavelength range
– Typical Applications
• Multirate optical transceiver testing (2.667 to 11.3 Gb/s)
• Fiber-optic link analysis across metro and long-haul networks
• Transmitter jitter and noise characterization
• Short-reach and extended-range datacom validation
– Compatibility & Integration
Designed for use with Keysight Infiniium DCA/DCA-J and DCA-X mainframes.
