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| Error Analysis for Femtosecond Optical Pulse Reconstruction from Spectrum Measurement with Spectral Phase Interferometry for Direct Electric-field Reconstruction |
| DENG Yu-qiang,SUN Qing,LYU Liang,WU Zhi-feng,DAI Cai-hong |
| Optics Division, National Institute of Metrology, Beijing 100029, China |
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Abstract Based on the technique of spectral phase interferometry for direct electric-field reconstruction (SPIDER), the effects of spectrum measurement error on femtosecond optical pulses reconstruction are studied. Two types of spectrum measurement errors, wavelength error and spectral irradiance error, are investigated. A low-pressure mercury lamp was used as a natural standard to calibrate the wavelength of the spectrometer. According to the calibration error, the influence of the wavelength error for the reconstructed pulse waveform is studied by blue-shift and red-shift with numerical simulations. The spectral radiation standard was used to calibrate the spectral irradiance of the spectrometer. The influence of spectral irradiance is simulatedly studied by increasing white noise. The reflective spectra from various reflectors were also measured, and the reconstructed waveforms from the spectra was compared and analyzed. The simulated and experimental investigations show that the relative standard uncertainties from both the wavelength error and the spectral irradiance error are within 1%.
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Received: 12 October 2015
Published: 11 August 2017
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| Fund:Research on GPS information ontology interoperability Methods |
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Corresponding Authors:
Yuqiang Deng
E-mail: yqdeng@nim.ac.cn
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2017, Vol. 38 
