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Proceedings Paper

Novel architecture of wavelength interleaving filter with Fourier-transform-based crystal waveplate
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Paper Abstract

An interleaving filter based on crystal waveplate (Yttrium Vanadate) is presented in the paper. The properties of its output spectra are analyzed through Fourier expansion. Numerical calculation shows that one stage of crystal waveplate only gives a cosine shape power transfer function, which is not able to meet the demand ofchannel passband in system. In order to get flattened transmission and rejection band, two stages of crystal waveplate of a special angle between optics axes is used. Length of the second stage waveplate is as two times as the first one's, and it brings a thrice harmonious in power transfer function which can improve the spectra to get a box-like frequency response. By use of Fourier expansion the performance of the output spectra is optimized to meet the demand of DWDM systems. Experimental results are in agreement with the theoretical analysis well.

Paper Details

Date Published: 23 August 2002
PDF: 7 pages
Proc. SPIE 4906, Optical Components and Transmission Systems, (23 August 2002); doi: 10.1117/12.480544
Show Author Affiliations
Changjian Ke, Huazhong Univ. of Science and Technology (China)
Deming Liu, Huazhong Univ. of Science and Technology (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4906:
Optical Components and Transmission Systems
WeiSheng Hu; Shoichi Sudo; Peter Kaiser, Editor(s)

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