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

Changjian Ke; Deming Liu; Dexiu Huang

doi:10.1117/12.480544

23 August 2002 Novel architecture of wavelength interleaving filter with Fourier-transform-based crystal waveplate

Changjian Ke, Deming Liu, Dexiu Huang

Proceedings Volume 4906, Optical Components and Transmission Systems; (2002) https://doi.org/10.1117/12.480544
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

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.

Citation Download Citation

Changjian Ke, Deming Liu, and Dexiu Huang "Novel architecture of wavelength interleaving filter with Fourier-transform-based crystal waveplate", Proc. SPIE 4906, Optical Components and Transmission Systems, (23 August 2002); https://doi.org/10.1117/12.480544

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