Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-resolution and Fully-programmable Microwave-shaper   We here propose and demonstrate a point-by-point programmable broadband
microwave spectrum processor with high-resolution up to tens of MHz. We achieve
this by bandwidth-minified mapping a programmable optical spectrum processor,
which has much larger bandwidth and lower frequency resolution, to a microwave
one, and make sure the mapping is a similarity transformation. As a comparison,
the traditional optical-to-microwave mapping based on super-heterodyne is
bandwidth-preserved and identical. Here the optical spectrum processor is
firstly sliced by a high-quality-factor optical resonator, which has periodic
transmission peak with MHz-level bandwidth, and then is mapped to microwave
domain by optical-frequency-comb-assisted multi-heterodyne. We demonstrate the
high frequency resolution and full function reconfigurability experimentally.
In a numerical example, we show that the group delay variation of optical
spectrum processor could be greatly enlarged after mapping. The resolution
improvement and group delay magnification distinguish our proposal
significantly from previous spectrum mapping from optics to microwave.

37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ