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Proceedings Paper

Beam splitting phenomena in Fabry-Perot filter
Author(s): Xue-zheng Sun; Pei-fu Gu; Hai-xing Chen; Bo Jin; Hai-feng Li; Xu Liu
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Paper Abstract

We investigate the beam splitting phenomena under the case that light is incident obliquely on thin film Fabry-Perot filter and the dispersion diagram of Fabry-Perot filter is shown; Gaussian beam propagating in the structure is analyzed by Fourier decomposition in angular field, transmitted band is calculated by characteristic matrix arithmetic in optical thin film theory. At last, the thin film Fabry-Perot filter device was fabricated by e-beam deposition in vacuum and measured from 782 to 787 achieved by the tunable Ti-sapphire laser. We show the variation of the distance between the splitting spots at different wavelengths by the image of splitting beams we detected, demonstrating the distance achieve maximum at the peak transmittance wavelength because of the largest group delay. And the experimental result is in good agreement with our interpretation.

Paper Details

Date Published: 28 January 2006
PDF: 7 pages
Proc. SPIE 6025, ICO20: Optical Communication, 60250D (28 January 2006); doi: 10.1117/12.666993
Show Author Affiliations
Xue-zheng Sun, Zhejiang Univ. (China)
Pei-fu Gu, Zhejiang Univ. (China)
Hai-xing Chen, Zhejiang Univ. (China)
Bo Jin, Zhejiang Univ. (China)
Hai-feng Li, Zhejiang Univ. (China)
Xu Liu, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 6025:
ICO20: Optical Communication
Yun-Chur Chung; Shizhong Xie, Editor(s)

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