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TIME TAGGER Q400

Time Tagger Q400 is a PCIe ¾ length card that works within an x64 Linux computer. Four count inputs and a fifth input for a frame or synchronisation input.

 Time Tagger Q400 is a PCIe ¾ length card that works within an x64 Linux computer. It provides four count inputs and a fifth input for a frame or synchronisation input. External clocks can be provided as either a 10MHz single ended or 100MHz differential signal. An additional input is provided to gate the counts. Counts are returned over the PCIe bus to the main system memory and is accessible via an API.

Features Time Tagger Q400 provides timing resolution to 125ps. Time Tagger Q400 provides timing resolution to 125ps.
Applications Photon Timing, QKD, Quantum computing, single-photon spectroscopy Photon Timing, QKD, Quantum computing, single-photon spectroscopy
Specifications Parameter Value
Power Single +12 V, 2x 3A from PCIe extension power
Laser Current Control Voltage Type 3V to 5V TTL type pulse
Resolution 125 /62/32ps peak to peak
Number 4 Continuous timing inputs
1 Slow synchronisation or framing count
Clock Sources Single-ended 10MHz e.g. from GPS or atomic standard
Differential 100MHz or custom
Internal clock 100MHz derived from 25MHz crystal
Gate Input Type 3V3 CMOS logic
Connection 0.1 Inch header internal
Connectors Timing SMA positive pin. Max 5V 10GHz
Power Molex Jnr PCI express power
Clock SMA positive pin. 10MHz sinusoidal. Max 13dBm
Gate Molex 0.1 inch header
Dimensions (WxHxD) 248 x 111 x 33 mm
300 g
-20 to 85 C
-20 to 60 C