Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of a microresonator soliton comb via current modulation of a
  DFB laser   Dissipative Kerr-microresonator soliton combs (hereafter called soliton
combs) has been rapidly progressing as compact frequency combs. Comb mode
scanning of the soliton combs with a large range and fast speed is of paramount
importance for applications such as LiDAR and spectroscopy, requiring large and
rapid frequency scanning of a pump continuous-wave (CW) laser as well as
resonance frequency of a microresonator. Here, we demonstrate the generation of
a soliton comb by a distributed feedback (DFB) laser toward the comb mode
scanning with a large range and fast speed. Compared with conventional pump CW
lasers (i.e. external cavity diode lasers: ECDLs), DFB lasers can be
frequency-scanned more largely and rapidly without mode-hopping. In addition,
because of the fast scan speed of the DFB laser, a single soliton comb is
generated simply by controlling the injection current of the DFB laser, greatly
simplifying the system without having any additional optical modulators such as
a carrier-suppressed single-sideband modulator (CS-SSB modulator),
acousto-optic modulator (AOM), and auxiliary CW laser.

22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat