Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of multi-soliton asynchronous buildup dynamics in all-PM
  mode-locked lasers   Ultrafast transient phenomena are the most important research field in
nonlinear systems, and the mode-locking fiber laser provides an excellent
research platform for ultrafast transient phenomena. We report on the
experimental observation of multi-soliton asynchronous buildup dynamics in
all-polarization-maintaining mode-locked fiber laser. The build-up dynamics
display several novel features. The different solitons in multi-soliton
generation are produced asynchronously instead of simultaneously. Solitons
generated at different time have different propagation speeds at metastable
state and same speeds at stable state, indicating that different solitons have
different energy at metastable state. The intra-cavity energy exhibits
quantization property with respect to the build-up process. A proportion of
background pulse vanished with respect to the birth of new pulse, which shows
the jungle law in fiber laser system. The buildup dynamics may benefit the
research of ultrafast pulse generation, interaction, regulation, energy
improvement, and stability improvement.

37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat