Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wide bandwidth phase-locked diode laser with an intra-cavity
  electro-optic modulator   Two extended cavity laser diodes are phase-locked, thanks to an intra-cavity
electro-optical modulator. The phase-locked loop bandwidth is on the order of
10 MHz, which is about twice larger than when the feedback correction is
applied on the laser current. The phase noise reaches -120 dBrad$^2$/Hz at 10
kHz. This new scheme reduces the residual laser phase noise, which constitutes
one of the dominant contributions in the sensitivity limit of atom
interferometers using two-photon transitions.

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The categories of this paper are: econ
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
1
The categories of this paper are: cs
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol