Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of phase noise spectra in optoelectronic microwave
  oscillators: a Langevin approach   We introduce a stochastic model for the determination of phase noise in
optoelectronic oscillators. After a short overview of the main results for the
phase diffusion approach in autonomous oscillators, an extension is proposed
for the case of optoelectronic oscillators where the microwave is a limit-cycle
originated from a bifurcation induced by nonlinearity and time-delay. This
Langevin approach based on stochastic calculus is also successfully confronted
with experimental measurements.

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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
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The categories of this paper are: econ
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
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The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci