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Calibration of tunable diode laser wavelength based on energy centrobaric correction method for discrete spectrum
Author(s): Tao Sun; Yingjie Yu; Yanzhang Dong; Yinglei Ding; Sergiy Valyukh
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Paper Abstract

The resolution of wavelength scanning of diode laser can influence the performance of interferometer mostly. In this article, we propose a method to improve the precision of wavelength calibration by using the theory of energy centrobaric correction for discrete spectrum. An optical wedge whose angle of tilt was known has been set in the optical system to measure the series of wavelength on time using a 2D Fourier Transfer (FT) of the interferograms generated by both surfaces of optical wedge. An energy centrobaric correction method is also put forward to evaluate the distribution of frequency and phase of fringe pattern generated by front and rear surface of optical wedge. The results of simulation and experiment show that the error of wavelength calibration reach to 0.01pm by correlating the distribution of frequency and phase of interferograms. The benefit is that the precision of wavelength of diode laser is improved significantly with a higher signal-to-noise ratio. This method can used to any tunable diode laser wavelength to improve the precision of measurement due to its simplicity and practicability.

Paper Details

Date Published: 24 July 2018
PDF: 7 pages
Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108270K (24 July 2018); doi: 10.1117/12.2501160
Show Author Affiliations
Tao Sun, Shanghai Univ. (China)
Yingjie Yu, Shanghai Univ. (China)
Yanzhang Dong, Shanghai Univ. (China)
Yinglei Ding, Shanghai Univ. (China)
Sergiy Valyukh, Linköping Univ. (Sweden)


Published in SPIE Proceedings Vol. 10827:
Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018)
Yingjie Yu; Chao Zuo; Kemao Qian, Editor(s)

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