Time-resolved transfer characteristics of ultrafast pulse in linear system

Junhao Zhu; Guangzhe Yang; Jianguo Zhang; Jiazhang Feng; Yuying Yin; Baoquan Jin; Zhongyi Weng

doi:10.1117/12.251950

23 September 1996 Time-resolved transfer characteristics of ultrafast pulse in linear system

Junhao Zhu, Guangzhe Yang, Jianguo Zhang, Jiazhang Feng, Yuying Yin, Baoquan Jin, Zhongyi Weng

Proceedings Volume 2887, Lasers in Medicine and Dentistry: Diagnostics and Treatment; (1996) https://doi.org/10.1117/12.251950
Event: Photonics China '96, 1996, Beijing, China

Abstract

Using ultra-fast laser pulse for source, lots of research in measuring the transfer characteristics of linear optical system have been done. Because the sample ability and time resolution of the measurement system are limited, what we measure is not the temporal profile of single pulse but the overlapping profile of numerous pulses. So the time-resolved transfer function of linear optical system can't be obtained directly. But we have founded the model of it with the knowledge of statistical optics. With this model and measurable data, the time-resolved transfer function and impulse response of linear optical system for ultra-fast pulse could be obtained. Here, a grating spectrometer is used for the linear optical system and the source is Ar-ion laser pumping dye laser. The input and output data of the spectrometer have been measured when the wavelength changed from 590 nm to 630 nm with the step of 10 nm. Applying the model, we have obtained the time-resolved transfer function of grating spectrometer in different wavelength. The pulse broadening characteristics of grating spectrometer in different wavelengths is also discussed in this paper.

Citation Download Citation

Junhao Zhu, Guangzhe Yang, Jianguo Zhang, Jiazhang Feng, Yuying Yin, Baoquan Jin, and Zhongyi Weng "Time-resolved transfer characteristics of ultrafast pulse in linear system", Proc. SPIE 2887, Lasers in Medicine and Dentistry: Diagnostics and Treatment, (23 September 1996); https://doi.org/10.1117/12.251950

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KEYWORDS

Picosecond phenomena

Spectroscopy

Ultrafast phenomena

Data modeling

Signal processing

Streak cameras

Dye lasers

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