Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exceptional points-based optical amplifiers   The finite gain-bandwidth product is a fundamental figure of merit that
restricts the operation of standard optical amplifiers. In microcavity setups,
this becomes a serious problem due to the narrow bandwidth of the device. Here
we introduce a new design paradigm based on exceptional points, that relaxes
this limitation and allows for building a new generation of optical amplifiers
that exhibits better gain-bandwidth scaling relations. Importantly, our results
can be extended to other physical systems such as acoustics and microwaves.

24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ