Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polymer multimode waveguide bend based on a multilayered Eaton lens   Reducing the bending radius of low-index contrast waveguides is essential in
reducing the size of the integrated optical components. A polymeric multimode
waveguide bend is presented based on the Eaton lens. The ray-tracing
calculations are utilized to truncate the Eaton lens in order to improve the
performance of the bend. The truncation of the lens decreases the footprint of
the bend as well. The designed waveguide bend with a radius of 18.4 $\mu m$ is
implemented by concentric cylindrical multilayer structure. The average bend
losses of 0.69 and 0.87 dB are achieved for the $TM_0$ and $TM_1$ modes in the
C-band of optical communication, respectively. The bend loss is lower than 1 dB
in a bandwidth of 1520-1675 nm for both modes.

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The categories of this paper are: econ
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio