研究目的
Investigating a method to reduce the measurement error of signal propagation delays in optical elements and fibers through approximation of optical pulse shapes.
研究成果
The proposed method effectively reduces the measurement error of signal propagation delays in optical elements and fibers, especially under conditions of small amplitude pulses and significant noise. Experimental results show a 10-20% reduction in measurement error due to noise.
研究不足
The method's accuracy is influenced by noise in the receive path and the complexity of applying the phase method to small amplitude signals. The iterative approximation method may require significant processing time for complex pulse shapes.
1：Experimental Design and Method Selection:
The method involves approximating the recorded form of optical pulses and determining time intervals between pulses using parameters of approximating functions.
2：Sample Selection and Data Sources:
Uses optical pulses from laser modules with Gaussian and Lorentzian shapes.
3：List of Experimental Equipment and Materials:
Includes pulse generator PG, laser module LM, fiber optic splitter S, optical delay line ODL, fiber combiner C, and digital storage oscilloscope DSO with photodetector PHD.
4：Experimental Procedures and Operational Workflow:
Optical pulses are generated, split, delayed, combined, and detected to measure propagation delays.
5：Data Analysis Methods:
Uses iterative approximation methods (least squares) for Gaussian and Lorentzian pulse shapes to determine time intervals between pulses.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
