Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A frequency-doubled, pulsed laser system for rubidium manipulation   We have constructed a pulsed laser system for the manipulation of cold Rb
atoms. The system combines optical telecommunications components and frequency
doubling to generate light at 780 nm. Using a fast, fibre-coupled intensity
modulator, output from a continuous laser diode is sliced into pulses with a
length between 1.3 and 6.1 ns and a repetition frequency of 5 MHz. These pulses
are amplified using an erbium-doped fibre amplifier, and frequency-doubled in a
periodically poled lithium niobate crystal, yielding a peak power up to 12 W.
Using the resulting light at 780 nm, we demonstrate Rabi oscillations on the F
= 2 <-> F=3-transition of a single 87Rb atom.

1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg