Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stable tuning of photorefractive micro-cavities using an auxiliary laser   Cavity nonlinear optics enables intriguing physical phenomena to occur at
micro- or nano-scales with modest input powers. While this enhances
capabilities in applications such as comb generation, frequency conversion and
quantum optics, undesired nonlinear effects including photorefraction and
thermal bistability are exacerbated. In this letter, we propose and demonstrate
a highly effective method of achieving cavity stabilization using an auxiliary
laser for controlling photorefraction in a z-cut periodically poled lithium
niobate (LN) microcavity system. Our numerical study accurately models the
photorefractive effect under high input powers, guiding future analyses and
development of LN microcavity systems.

26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an