Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of Spectrally-Efficient Superchannel Using Optical Frequency
  Comb Referencing and Active Demultiplexing   We generate multiple optical carriers with ultra-low phase noise, over a
useable bandwidth of 160 GHz, from an externally injected gain-switched comb
source with exceptional low linewidth below 10 Hz. We show successful
transmission of 17 demultiplexed channels using 64-quadrature amplitude
modulation signals at 5 GBaud.

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The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
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The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga