Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hardwire-Configurable Photonic Integrated Circuits Enabled by 3D
  Nano-Printing   Photonic integrated circuits (PIC) currently rely on application-specific
designs that are geared towards a particular functionality. Development of such
application-specific PIC requires considerable effort and often involves
several design, fabrication, and characterization iterations, each with cycle
times of several months, to reach acceptable performance. At the same time, the
number of chips that is eventually needed to serve a certain application is
often too small to benefit from the scalability of advanced photonic
integration platforms. As a consequence, large-scale photonic integration has
hitherto been unable to unfold its full economic advantages within the highly
fragmented application space of photonics. Here we introduce a novel approach
to configurable PIC that can overcome these challenges. The concept exploits
generic PIC designs consisting of standard building blocks that can be
concatenated to provide an application-specific functionality. Configuration of
the PIC relies on establishing hardwired optical connections between suitable
ports of an optical wire board using highly flexible 3D direct-write laser
lithography. Hardwire-configurable PIC allow to exploit high-throughput
production of generic chips in large-scale fabrication facilities for serving a
wide variety of applications with small or medium volumes of specifically
configured devices.

31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th