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Custom Arrayed Waveguide Gratings with Improved Performance
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DOI：10.1002/adpr.202300198.png)
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Abstract
En 中文
Arrayed waveguide gratings (AWGs) are key optical components of various new applications in telecommunication, astronomy, medical imaging, and spectroscopy. It is a very powerful integrated light-dispersion technology with significant flexibility for tailoring its performance to the individual system needs of each application. There are several examples of custom AWG designs in the literature aiming for improved system performance. In this review, an overview of the available methods for improving the bandwidth, spectral resolution, and transmission function shape of AWGs is provided. The working principle as well as the advantages and disadvantages of each method are discussed. This review demonstrates that by combining fundamental physical concepts with innovative approaches, it is possible to create powerful, customizable, and high-performance arrayed waveguide grating devices tailored to specific applications.image & COPY; 2023 WILEY-VCH GmbH
Keywords:
arrayed waveguide gratings (AWGs)
bandwidths
cascading AWGs
flat-top responses
high resolutions