Optical methods of the delay cells characteristics measurements and their applications

Abstract

The only efficient optical spectrum measurement in infra-red range for low light regime is based on time multiplexing. Typically low timing jitter of the single photon detector combined with fast and high precision electronics is used for photon arrival time measurement. The timing histogram can be used to determine the spectrum of the photons. The better time detection accuracy allows to obtain the more precise spectrum information. This paper proposed an optical method for the sub-picosecond time-to-digital converters characterization prefer to optimize the multi-tapped delay lines implementation process, thus yielding the converters with much improved parameters.

Metrology and Measurement Systems

“…10). Potential random changes of this narrow quantization step result from the influence of uncertainty of measured signal edges and random spread of propagation times of delay elements of TDLs [5,[11][12][13]. On the basis of values obtained during the calibration process and presented in Table 1, it is possible to observe a mutual change in the position of boundaries between steps 35 and 36 for lines DL1 and DL2 because the registration order of types 36-35 and 35-36 is changed, while for the third line DL3 one channel with number 36 is always active.…”

A 2.3-ps RMS Resolution Time-to-Digital Converter Implemented in a Low-Cost Cyclone V FPGA

“…Complex programmable logic device-based TDCs [14] and field-programmable gate array (FPGA)-based TDCs [15]- [20], constructed with off-the-shelf low-cost components, form a promising practical alternative to the conventional ASIC-based TDCs. FPGA-based TDCs are inexpensive, easy to implement and reconfigure within short development cycles, highly scalable, and versatile across a variety of applications.…”