Time digit converter
Keywords:
Time digit converter
Product Overview
A time-to-digital converter is an instrument that can identify the timing of events and convert analog signals into digital signals. It is widely used in scientific research fields such as statistical analysis of post-pulse distributions in lasers, measurement of particle collision times, quantum optics, quantum key distribution, optical detection, and lidar ranging.
The LX-TDC200 is a compact, easily expandable PCI-E board-mounted TDC that supports three operating modes: channel-to-channel difference measurement (with the start channel freely selectable), pulse width measurement, and pulse interval measurement. It features per-channel pulse auxiliary counting capability and boasts ultra-high precision resolution, multi-channel output, and high data conversion rates.
Product Parameters
| Channel characteristic parameters | |
| Counting Channel Interface | 55MC |
| Number of counting channels | 4 (expandable to 8/16/32 channels) |
| Reference Clock Input/Output Interface | 55MC |
| Input signal voltage standard | -5.00 V ~ +5.00 V (trigger threshold is adjustable) |
| Trigger edge | Rising/falling edge |
| Trigger pulse width | >1 ns |
| TDC characteristic parameters | |
| Time resolution is optional. | 2 ps / 4 ps / 10 ps..50 ns |
| Time jitter | <15 ps rms |
| Instantaneous saturation count rate | 50 × 10^6 cps |
| Dead time | 20 ns |
| Total event transmission rate | 50 M Events/s |
| Reference clock input/output | 10 MHz |
| Measurement mode | Difference mode (start-stop) / Pulse width measurement / Pulse interval measurement / Character count |
| Maximum count value | 2^32 |
| Histogram characteristic parameters | |
| Maximum range | 32 ms |
| Minimum time resolution | 2 ps |
| Acquisition Display Mode | Frequency display / Continuous statistics |
| Collection Time Range | 1 ~ 604,800 s (in continuous statistics mode) |
| Operating characteristic parameters | |
| Communication interface | PCI-E × 8 |
| Computer Configuration Requirements | CPU > 1 GHz, Memory > 512 MB |
| Operating system | Windows 7 / 10 |
| Power consumption | 20 W |
Scope of application
● Statistical distribution of post-pulse signals from the laser
● Particle collision time
● Time-Resolved Single Photon Counting
● Quantum Key Distribution and Quantum Optics
● Fluorescence Lifetime and Fluorescence Spectroscopy
● Optical detection and LiDAR ranging
Related Products
Atmospheric Turbulence Simulation Experimental System
The atmospheric turbulence simulation experimental system is built upon a spatial light modulator (SLM) to create a platform for simulating atmospheric turbulence conditions. By leveraging Kolmogorov’s statistical theory of turbulence and the power spectral density method, it generates dynamically adjustable turbulent phase screens. The system supports adjustment of subharmonic orders, enabling the creation of random phase screens that accurately reflect the statistical characteristics of turbulence. The software integrates a multidimensional parameter-control module that encompasses key variables such as phase-screen resolution and size, atmospheric coherence length (r0), inner and outer turbulence scales (l0 and L0), beam wavelength, beam waist radius, and propagation distance, thereby facilitating fine-grained simulation of turbulence intensity and propagation scenarios. Real-time loading of phase screens onto the SLM enables wavefront modulation, while the system also provides synchronous support for visual analysis of phase screens, import and export of image files, and data storage, thus offering a high-precision experimental environment for research on laser propagation under atmospheric turbulence interference and for validation of adaptive-optics algorithms.
Diffraction-Based Optical Teaching Platform
The diffraction-based optical teaching platform is an upgraded version of the transmission-type digital optical teaching system, designed to meet the practical needs of optics laboratory instruction in higher education. The entire platform features a rail-guided design that facilitates precise adjustment of optical paths, enabling direct comparisons between digital and traditional optical experiments and thereby satisfying the hands-on teaching requirements of optics, optoelectronics, and quantum information programs at universities.
Transmissive Optical Teaching Platform
The transmissive optical teaching platform is a multifunctional educational system designed for optoelectronics laboratories, focusing on 16 core optical experiments including double-slit interference, diffraction, Talbot imaging, and spatial filtering, while also demonstrating cutting-edge technologies such as computational holographic reconstruction, beam manipulation, and dispersion. Guided by the vision of “revolutionizing traditional laboratory instruction and deepening expertise in laser science,” this platform employs modular experimental design to integrate theoretical validation with exploratory investigation of phenomena, thereby supporting hands-on teaching in optics, optoelectronics, and quantum information programs at universities and helping to cultivate high-caliber professionals in the optoelectronics field who possess innovative thinking.
Reflective Optical Teaching Platform
The Reflective Optics Teaching Platform is a comprehensive educational system specifically designed for university-level photonics and quantum laboratories. It supports 18 classic optical experiments, including Michelson interferometry and diffraction, enabling students to perform both qualitative and quantitative measurements with real-time adjustment of software parameters. This platform not only enhances students’ hands-on skills but also fosters their creativity.
Message
If you have any suggestions, please leave a message or send us an email. We’ll reply to you as soon as possible after receiving your message or email.
Landline: +86-551-63637001
Tel: +86-13514953141
Address: No. 2800, Innovation Avenue, High-Tech Zone, Hefei City, Anhui Province, Innovation Industrial Park Phase II, E2-901/902
Quick Navigation
Online Message
If you have any product-related questions, feel free to contact us!