Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multiwavelength Passively Mode Locked Fiber Laser: all normal dispersion   We report on the generation of multiwavelength gain-guided soliton (GGS) in
an all normal dispersion birefringent fiber laser passively mode-locked with a
semiconductor saturable absorber mirror (SESAM). Determined by the cavity
birefringence, we observe the stable single-, dual- and triple- wavelength mode
locked GGSs, which is a natural consequence of the mutual nonlinear interaction
among the normal cavity dispersion, cavity fiber nonlinear Kerr effect, laser
gain saturation and bandwidth limitation resulting from the intra-cavity
birefringent filter.

32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an