The UHF-CNT Pulse Counter features analysis of up to 4 pulse trains in parallel, enabling event based measurements, e.g. photon detection using photo-multiplier tubes. There are five distinct modes of operation and each channel offers an adjustable discriminator. The maximum count rate is 225 MHz. Measurement results from the pulse counters can be conveniently analyzed with the LabOne® toolset, which features time domain and histogram display. Through the cross-domain trigger engine, branching conditions for the UHF Arbitrary Waveform Generator can be defined based on counter values, enabling ultra-fast feed-forward loops for quantum error correction.
UHF-CNT 주요 특징
UHF-CNT 업그레이드 및 호환성
UHF-CNT 기능 다이어그램
The UHF-CNT Pulse Counter enables measurement of randomly distributed pulses and can operate with the following five modes:
All modes feature background subtraction, i.e. taking into account measurement values from two separate counters. Via the 1GbE interface, the counter data can be streamed to the host PC where they can be analyzed using the LabOne toolset. Alternatively, counter data can be output as an analog signal on any of the four auxiliary outputs which provides a robust interface to other instruments.
In combination with the UHF Arbitrary Waveform Generator the UHF-CNT features advanced cross-triggering functionality for complex pulsed experiments in quantum optics. Counters can be initiated and reset by the UHF AWG, and vice versa, counter values can serve as a trigger or branching conditions for the UHF AWG.
|signal inputs||4 Trigger Inputs, 32 DIO|
|# counter modules||4|
|counter value depth||32 bit (4.29 Gcounts)|
|maximum count rate||225 MHz|
|time resolution||4.44 ns|
|run modes||manual, triggered, free-running, gated, pulse-tagging|
|signal input impedance||50 Ω/1 kΩ|
|dead time between periods||<30 ns|
|signal input (discriminator) range||–2.5 V to +2.5 V (50 Ω input impedance)
–5 V to +5 V (1 kΩ input impedance)
|signal input (discriminator) resolution||<0.2 mV|
|signal input (discriminator) hysteresis||100 mV|
|analog output||4 analog outputs of counter data (16 bit, ±10 V range)|