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| Coad | 671395 | Type | Time-Correlated Single-Photon Counter | |
| Dimension(mm) | 300.0 x 235.0 x 115.0 | Minimum Trigger Pulse Width (ns) | ＞0.1 | |
| Dead Time (ns) | ＜10.0 | Number of Counting Channels | 4 | |
| Input Signal Standard | -2 V to +3 V Adjustable Threshold | Minimum Statistical Period in ITTR Mode | - | |
| MARKER Signal Interface | LEMO | Time Resolution in T2 Mode | - | |
| Time Resolution in T3 Mode | - | Host Data Transmission Interface | USB 3.0 | |
| Maximum Count per Channel | 65535 | Reference Clock Input/Output Interface | SMA | |
| Adjustable Time Delay Range | -1000.0-1000.0ns | Synchronization Signal Division | 1/2/4/8 | |
| Sync Channel / Counting Channel Interface | SMA | Data Interface | - | |
| Time Resolution @ Time Tag | 16ps | Time Resolution @ Histogram | 16/32/64/128/256/512/1024/…/33554432 ps | |
| Maximum Event Transfer Rate | 40M Events/s | Maximum Number of Time Bins | - | |
| Maximum Time Range | Unlimited@T2 1.09 s@T3 | Maximum Time Range @ Histogram | 1.08 μs @16 ps 67.1 μs@1024 ps 2.19 s@33554432 ps | |
| Mode Selection | T2/T3@Time Tag | Power Supply | 110-230 V AC | |
| Instantaneous Saturation Count Rate | 100Mcps | Trigger Mode | Rising Edge / Falling Edge Trigger (Adjustable) | |
| Counting Depth | - | |||
The LBTEK single-photon counter is a high-precision time measurement system capable of ultra-sensitive detection of weak optical signals at the single-photon level. It supports time-tag mode, enabling real-time recording of photon arrival times. The technology integrates signal processing, optoelectronic detection, and software operation, allowing precise measurement of time intervals between multiple signal events with picosecond-level time resolution.
Thanks to its powerful high-speed data storage and processing capabilities, the LBTEK single-photon counter achieves a saturation count rate of up to 500 Mcps. Combined with high-speed signal transmission technology and advanced software, it is ideally suited for applications such as fluorescence lifetime measurements, laser ranging, fiber-optic sensing, quantum optics experiments, nuclear physics research, and oceanographic studies.
The LBTEK time-correlated single-photon counter measures photon events from single-photon detectors over multiple signal cycles, collecting a large number of photon counts and time-stamped data. By overlaying these results on the same time axis, the system generates statistically meaningful histograms. Each histogram bin represents the photon count within a specific time window, directly reflecting the intensity of the optical signal.
In addition to histogramming, the LBTEK TCSPC supports time-tag mode, enabling real-time recording of both time and channel information for each event. It achieves 16 ps time resolution and maintains a dead time of no more than 10 ns. With its high-speed data storage and processing capability, it delivers a saturation count rate of up to 100 Mcps. Data are transferred via a USB 3.0 interface to the PC, where users can perform histogram construction, curve fitting, parameter configuration, data storage, and in-depth analysis.
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