Keysight's 81491A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 32Gbaud and can serve as universal E/O converter. It comes in Multimode (MM) and Single-Mode (SM) flavors and includes internal lasers at 850nm (MM) or 1310&1550nm (SM). External optical input for usage with tunable laser sources is available for SM option.
It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.
Key Features
- 33 GHz typical electro-optical bandwidth
- Optical wavelength
1310 nm & 1550 nm Single Mode Fiber
850 nm Multi Mode Fiber
- Rise and fall times
< 15 ps (typical)
- Jitter
< 1 ps RMS (typical)
< 7 ps P-P (typical)
- TDEC for 28Gb/s NRZ
< 0.9 dB (typical)
- TDECQ for 26.56125 Gbaud PAM4
< 1.2 dB (typical)
