Keysight N7745C Optical Multiport Power Meter (8 Channel, 1250-1650 nm) The Keysight N7745C optical multiport power meter delivers high-speed, multichannel optical power measurement for DWDM and telecom component manufacturing and verification. With eight parallel measurement channels, a 1250 to 1650 nm wavelength range, and low polarization dependence, the N7745C increases throughput and accuracy in automated optical test systems. Key Features 8 Parallel Optical Channels —