Two structure interleavers with flat-top spectral response

Aiguang Ren; Yongqing Huang; Xiaomin Ren

doi:10.1117/12.666862

9 December 2005 Two structure interleavers with flat-top spectral response

Aiguang Ren, Yongqing Huang, Xiaomin Ren

Proceedings Volume 6024, ICO20: Optical Devices and Instruments; 60241H (2005) https://doi.org/10.1117/12.666862
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

This paper describes two kinds of circuit configuration to design interleaver, which are implemented by a single stage M-Z interferometer whose two arms are connected with ring waveguides. When the two configurations circuits are composed of M rings and N rings, respectively, (2M+2N+1)th-order interleaver characteristics can be realized. For two kinds of structure, design examples including third-order interleaver and fifth-order interleaver and seven-order interleaver are demonstrated. By theoretical analysis of the transmission function, The power transmittances spectrums are calculated, the circuit parameters are gained. Compared the power transmittances spectrums among third-order interleaver, fifth-order interleaver and seventh-order interleaver, it is found that with order of interleaver added, flat-top effect is better, the steeper spectral responses of the stopband and passband are achieved, and power transmittances get closer to square wave.

Citation Download Citation

Aiguang Ren, Yongqing Huang, and Xiaomin Ren "Two structure interleavers with flat-top spectral response", Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60241H (9 December 2005); https://doi.org/10.1117/12.666862

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KEYWORDS

Transmittance

Waveguides

Interferometers

Wavelength division multiplexing

Optical filters

Signal attenuation

Structural design

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