Keysight 81492A Reference Transmitter

Overview

The Keysight 81492A is a single-mode reference transmitter optimized for NRZ and PAM4 signals at baud-rates up to 56 Gbaud. It integrates internal lasers at 1310 nm and 1550 nm wavelengths and supports external optical input for use with tunable laser sources. The module is fully integrated into Keysight's Optical Receiver Stress Test solutions and enables testing of modern high-speed optical communication standards.

Key Features

• 40 GHz typical electro-optical bandwidth at 1310 nm
• Support for NRZ and PAM4 signal formats up to 56 Gbaud
• Dual-wavelength capability: 1310 nm and 1550 nm Single-Mode Fiber
• Remote or manual wavelength switching without module exchange
• Rise and fall time: less than 9 ps (typical)
• Low jitter: less than 400 ps RMS or less than 6.5 ps peak-to-peak (typical)
• TDEC for 53.125 Gb/s NRZ: less than 1.5 dB (typical, 1310 nm)
• TDECQ for 53.125 Gbaud PAM4: less than 2.4 dB (1310 nm) or less than 2.1 dB (1550 nm)
• External optical input for tunable laser sources

Applications

• IEEE 802.3 10GBASE optical standards testing
• IEEE 802.3 40GBASE optical standards testing
• IEEE 802.3 100GBASE optical standards testing
• IEEE 802.3 400GBASE optical standards testing
• High-speed transceiver characterization
• Optical receiver stress testing