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81490A Reference Transmitter for Optical Receiver Stress Test

Product Status: Discontinued | Currently Supported
This product is no longer available

A replacement for this product is available:

Key Features & Specifications


  • 33 GHz typical electro-optical bandwidth
  • Optical wavelength
    1310 nm & 1550 nm Single Mode Fiber
    850 nm Multi Mode Fiber
  • Rise and fall times
    < 25 ps
    < 15 ps (typical)
  • Jitter
    < 0.2 UI
    < 0.15 UI (typical)


Keysight’s 81490A reference transmitter is optimized to offer excellent eye quality as a reference for testing 10 GbE-LR, -ER, -SR according to IEEE 802.3ae, 100GBASE-LR4,-ER4,-SR4 according to IEEE 802.3bs and according to 10/16 G FC Fibre Channel specifications. With the integration into the Keysight LMS platform it offers seamless operation with the N4917A/B optical receiver stress test solution.

The high modulation bandwidth of up to 35GHz enables to build test setups that deliver arbitrary optical modulated signals in combination with electrical waveform generators.


  • Support for full compliance to IEEE 802.3ae -LR, -ER, -SR and IEEE 802bs -LR4, -ER4, -SR4 in combination with the N4917A/B Optical Receiver Stress Test solution.
  • 1310 nm and 1550 nm Single Mode Fiber transmitter included in one module saves time and cost.
  • Module with external laser source input for addressing 1300nm WDM bands.
  • 850nm Multimode Fiber transmitter.
  • Scalability with the integration into industry standard Keysight LMS platform extends your optical workbench capabilities.
  • Analog modulation bandwidth of 35 GHz extends the application to arbitrary optical waveform generation in combination with an electrical arbitrary waveform generator.