31 October 2016 Uniform flat-top interleaver consisting of a two-stage cascaded Mach-Zehnder interferometer
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Abstract
We theoretically investigate an all-fiber interleaver consisting of a two-stage cascaded Mach-Zehnder interferometer (MZI). The simulation results of the all-fiber interleaver presented symmetrical and asymmetrical output spectra and a uniform flat-top spectral response by changing the coupling coefficient of the couplers. In addition, the interleaver proposed can realize arbitrary passband width ratio between the two output ports by adjusting the coupling coefficient of the couplers involved. A near box-shaped spectral response can be generated through setting suitable parameters, at the same time, the passband and stopband of optical interleaver are improved significantly. This interleaver proposed should be useful to realize the deployment of flat-top all-fiber asymmetric interleaver in dense wavelength division multiplexing (DWDM) networks of high spectral efficiency.
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Huaiyin Su, Huaiyin Su, Yundong Zhang, Yundong Zhang, Yongfeng Wu, Yongfeng Wu, Hui Li, Hui Li, Changqiu Yu, Changqiu Yu, Ping Yuan, Ping Yuan, } "Uniform flat-top interleaver consisting of a two-stage cascaded Mach-Zehnder interferometer", Proc. SPIE 10019, Optoelectronic Devices and Integration VI, 100190Q (31 October 2016); doi: 10.1117/12.2246002; https://doi.org/10.1117/12.2246002
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