Abstract
A bandwidth-tunable optical filter is fabricated by combining Mach–Zehnder interferometer (MZI) and microring resonator. Both bandwidth red-shift and blue-shift are observed in the experiment. The bandwidth can be tuned from 0.46 to 3.09 nm by controlling two phase shifters. The device also shows an extinction ratio higher than 25 dB. Potential applications are integrated optical signal processing such as reconfigurable filtering and channel selecting in wavelength division multiplexer.
Highlights
Wavelength division multiplexing systems play a more and more important role in the generation telecom networks [1]
A bandwidth-tunable optical filter is fabricated by combining Mach–Zehnder interferometer (MZI) and microring resonator
Potential applications are integrated optical signal processing such as reconfigurable filtering and channel selecting in wavelength division multiplexer
Summary
Wavelength division multiplexing systems play a more and more important role in the generation telecom networks [1]. Abstract A bandwidth-tunable optical filter is fabricated by combining Mach–Zehnder interferometer (MZI) and microring resonator. Keywords Filter Á Bandwidth tunable Á Silicon Á Ring resonator Á Wavelength division multiplexer
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