Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent, directional supercontinuum via cascaded dispersive wave
  generation   We demonstrate a novel approach to producing coherent, directional
supercontinuum via cascaded dispersive wave generation. By pumping in the
normal group-velocity dispersion regime, pulse compression of the first
dispersive wave results in the generation of a second dispersive wave,
resulting in an octave-spanning supercontinuum generated primarily to one side
of the pump spectrum. We theoretically investigate the dynamics and show that
the generated spectrum is highly coherent. We experimentally confirm this
dynamical behavior and the coherence properties in silicon nitride waveguides
by performing direct detection of the carrier-envelope-offset frequency of our
femtosecond pump source using an f-2f interferometer. Our technique offers a
path towards a stabilized, high-power, integrated supercontinuum source with
low noise and high coherence, with applications including direct comb
spectroscopy.

21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th