Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Period doubling of multiple dissipative-soliton-resonance pulses in a
  fiber laser   We report on the experimental observation of period doubling of multiple
dissipative-soliton-resonance (DSR) pulses in an all-normal-dispersion fiber
laser based on a nonlinear amplifying loop mirror. By increasing the pump
power, in addition to the typically linearly pulse broadening under fixed pulse
peak power, the jump from a single DSR pulse to multiple DSR pulses was
observed. During this process, the period doubling appears, that is, the DSR
pulses can exhibit the characteristics of period doubling in a multi-pulse
state. The typical DSR performance of linearly pulse duration change versus
pump power varying can be maintained when the period doubling of multiple DSR
pulses appears.

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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys