Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microwave photonic fractional Hilbert transformer with an integrated
  optical soliton crystal micro-comb   We report a photonic microwave and RF fractional Hilbert transformer based on
an integrated Kerr micro-comb source. The micro-comb source has a free spectral
range (FSR) of 50GHz, generating a large number of comb lines that serve as a
high-performance multi-wavelength source for the transformer. By programming
and shaping the comb lines according to calculated tap weights, we achieve both
arbitrary fractional orders and a broad operation bandwidth. We experimentally
characterize the RF amplitude and phase response for different fractional
orders and perform system demonstrations of real-time fractional Hilbert
transforms. We achieve a phase ripple of < 0.15 rad within the 3-dB pass-band,
with bandwidths ranging from 5 to 9 octaves, depending on the order. The
experimental results show good agreement with theory, confirming the
effectiveness of our approach as a new way to implement high-performance
fractional Hilbert transformers with broad processing bandwidth, high
reconfigurability, and greatly reduced size and complexity.

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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol