Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Development of rf reference line for the linear collider   The rf distribution system for the linear collider requires stable
x-band(11.424GHz) rf phase signal over 25km length. In order to realize the
distribution system, a fiber optic link using a phase stabilized optical fiber
was tested. The phase stabilized optical fiber has been employed at LEP, KEKB,
etc.. This paper describes the hardware system and result of the preliminary
test of the feed back system for stabilization of the phase change.

19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat