The HDAWG-CNT Pulse Counter allows the analysis of up to 8 pulse trains in parallel, enabling event-based measurements, e.g. photon detection using photo-multiplier tubes, at a maximum count rate of 300 MHz. There are four distinct modes of operation and each channel offers an adjustable discriminator with a range of ±10 V. Measurement results from the pulse counters can be conveniently analyzed with the LabOne toolset, which features time domain and histogram display. Based on these counter values, branching conditions for the HDAWG Arbitrary Waveform Generator can be defined, enabling ultra-fast feed-forward loops for quantum error correction.
HDAWG-CNT 주요 특징
HDAWG-CNT 업그레이드 및 호환성
HDAWG-CNT 기능 다이어그램
The HDAWG-CNT Pulse Counter option enables the measurement of randomly distributed pulses. Each Trigger input of the HDAWG is linked to an individual counter unit and operates in one of the following modes:
All modes feature background subtraction which takes into account measurement values from two separate counters. They also feature count integration over time. Via the 1GbE or USB 3.0 interface, the counter data can be streamed to the host PC where they can be analyzed using the LabOne toolset.
In combination with the HDAWG Arbitrary Waveform Generator, the HDAWG-CNT features advanced cross-triggering functionality for complex pulsed experiments in quantum optics. Each of the counters can be initialized and reset within AWG sequences, and vice versa; counter values can serve as a trigger and branching conditions in the sequence definitions.
|카운터 모듈 수||4 또는 81|
|신호 입력||4 또는 8 SMA 입력1, 32 DIO|
|카운터 값의 깊이||32 bit (4.29 G counts)|
|최대 카운트 속도||300 MHz|
|시간 해상도||3.3 ns|
|실행 모드||프리 러닝(free-running), 게이팅(gated), 게이팅 프리런(gated free-running), 시간 태깅(time-tagging)|
|신호 입력 임피던스||50 Ω / 1 kΩ|
|신호 입력 (판별기) 범위||–5 V to +5 V (50 Ω 입력 임피던스)
–10 V to +10 V (1 kΩ 입력 임피던스)
|신호 입력 (판별자) 해상도||0.4 mV 미만|
1 HDAWG4, 4 출력 채널 모델 및 HDAWG8, 8 출력 채널 모델간 차이가 있습니다.