On the possibility of increasing the sensitivity to rotation with a constant magnetic field in a ring laser based on an Nd : YVO4 crystal
Lariontsev E. G.1, Firsov V. V.1, Chekina S. N.1
1Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University, Moscow, Russia
Email: e.lariontsev@yahoo.com
An Nd:YVO4 ring laser operating in the regime of frequency locking of counterpropagating waves has an infinite locking region. In the present study, self-modulation lasing is established in such a laser by introducing a control element consisting of a quarter-wave plate and a magnetoactive crystal in an external magnetic field into the cavity. The modulation frequency of radiation intensity in this operating regime is proportional to the phase nonreciprocity of the ring cavity, which is induced, in particular, by rotation. It is demonstrated that the emission spectrum in the self-modulation regime is narrower than in the regime of frequency locking of counterpropagating waves. Keywords: solid-state ring laser, frequency locking of counterpropagating waves, self-modulation lasing regime, optical phase nonreciprocity.
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