Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Array of Fabry-P\'erot waveguide resonators with tunable coupling   We demonstrate the elements of a coupled-resonator optical waveguide in a
side-coupled Fabry-P\'erot configuration, and show that the coupling rate
between adjacent waveguides can be widely tuned through the thermo-optic
effect. The device is linearly scalable and can be combined with other
integrated devices, with applications as an optical delay line or as a key
element in a cavity-QED based quantum simulator.

13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an