A Regenerative Optical Quantum Amplifier

M. I. Dzhibladze, R. R. Erikashvili, E. Sh. Teplitskii +2 more

Г. П. Леднева, Iu. I. Chekalinskaia

M. I. Dzhibladze, E. Sh. Teplitskii, R. R. Erikashvili

Experimental and theoretical investigations were made of amplifying properties of an active neodymium glass fiber and a regenerative amplification regime was observed. It was found that the intensity gain of such a glass-fiber optical quantum amplifier increased exponentially on increase in the pump energy and corresponded to a regenerative regime. It was found that such a regenerative amplifier could operate on pulses above a certain minimum power. The experimental value of this minimum power was 10 mW. The maximum gain achieved in these experiments was 105 when the active length of the fiber was 40 cm.

V. E. Belonuchkin, N I Eskin, Stanislav M. Kozel +2 more

An experimental investigation was made of the efficiency of a regenerative optical quantum amplifier in detection of scattered laser radiation. In agreement with theoretical estimates, the experimental results demonstrated that the average energy of the scattered field amplified in this amplifier did not exceed the energy in the spatial coherence area. The relative variance of the output signal, which was distributed exponentially under linear conditions, was close to unity and was independent of the relationship between the correlation radius of the spatially random field and the receiver aperture radius.

Ataç İmamoğlu

Christophe Couteau