Laser Power Stabilization by Means of Nonlinear Absorption

Abstract

Mean power reflection from a onedimensional nonlinear random medium

Pulse stretching of Q-switched lasers

“…Although the Brillouin or Raman thresholds may be lower external to the laser resonator, inside the resonator the threshold for Rayleigh wing scattering is the lowest. This assumption is supported by the results of a previous paper in which we reported power stabilisation by means of non-linear scattering [12]. There we indicated the evidence for concluding that Rayleigh-wing scattering was primarily responsible for the stabilisation.…”

“…Water was also attempted, but the result was an ordinary Q-switched pulse. These results are expected from the theory [12].…”

“…For our experiment ro ~ 10 -s sec. Since ~th 12 kw/cm 2 [12], ~L/~t~ ~ 100 and therefore steady state is reached in a few nanoseconds.…”

Laser Q-switching by organic solvents

“…More recently two effects of intracavity liquid cells on laser spiking operations have been reported [10,11 ].…”

Nonlinear lenses and their applications

“…Это направление ак тивно развивалось в последние годы. Нелинейную линзу, сопряженную с пространственным фильтром, можно использовать для стабилизации мощности из лучения [37][38][39][40], изменения длительности свето вых импульсов [39,41], управления излучением не прерывных лазеров импульсами вспомогательного маломощного лазера [42], в оптических бистабиль ных устройствах [43][44][45] и нелинейно оптических ограничителях (самоограничителях-selflimiters) мощности и энергии лазерного излучения [24,37,[46][47][48][49][50][51][52][53][54][55][56][57][58][59], для модуляции добротности [103] и синхро низации мод лазера [110,111].…”