A frequency comb is generated by successive frequency shifts of a single mode laser by an acousto-optic modulator coupled to a passive ring cavity. The cavity design and the laser-cavity coupling have a very high efficiency and allow for a perfect control of both the frequency and the intensity of the sharp edge. A second acousto-optic modulator can be used to double the comb bandwidth. The obtained spectrum is particularly suitable for laser cooling when a large velocity capture range is required as it is the case, for example, of ions confined in a storage ring.
Atutov, S.N., Bonazzi, F., Calabrese, R., Guidi, V., Lenisa, P., Petruio, S., et al. (1996). Generation of a frequency comb with a sharp edge of adjustable intensity and frequency. OPTICS COMMUNICATIONS, 132(3-4), 269-274 [10.1016/0030-4018(96)00363-X].
Generation of a frequency comb with a sharp edge of adjustable intensity and frequency
MARIOTTI, E.;MOI, L.
1996-01-01
Abstract
A frequency comb is generated by successive frequency shifts of a single mode laser by an acousto-optic modulator coupled to a passive ring cavity. The cavity design and the laser-cavity coupling have a very high efficiency and allow for a perfect control of both the frequency and the intensity of the sharp edge. A second acousto-optic modulator can be used to double the comb bandwidth. The obtained spectrum is particularly suitable for laser cooling when a large velocity capture range is required as it is the case, for example, of ions confined in a storage ring.
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https://hdl.handle.net/11365/22089
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