Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulations of mode-selective photonic lanterns for efficient coupling
  of starlight into the single-mode regime   In ground-based astronomy, starlight distorted by the atmosphere couples
poorly into single-mode waveguides but a correction by adaptive optics, even if
only partial, can boost coupling into the few-mode regime allowing the use of
photonic lanterns to convert into multiple single-mode beams. Corrected
wavefronts result in focal patterns that couple mostly with the circularly
symmetric waveguide modes. A mode-selective photonic lantern is hence proposed
to convert the multimode light into a subset of the single-mode waveguides of
the standard photonic lantern, thereby reducing the required number of outputs.
We ran simulations to show that only two out of the six waveguides of a 1x6
photonic lantern carry >95% of the coupled light to the outputs at $D/r_0 < 10$
if the wavefront is partially corrected and the photonic lantern is made
mode-selective.

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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: cs
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The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: alg-geom
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The categories of this paper are: gr-qc