Characteristics of Optical Interconnection for Power Transmission Based on Phase Conjugation Generation by a Ring-Resonator

To establish an interconnection for power transmission between two moving objects, optical phase conjugation is applied for non-mechanical, all-optical tracking and compensation of atmospheric distortions. The installation of the connection starts in sending a coherent pilot signal by the power receiver towards the transmitter. There, the incident light is collected and directed into a nonlinear medium placed inside a ring cavity. Scattered light enters the resonator and initiates a dynamic hologram writing with the incident pilot signal. Hence, a stable oscillation is generated by diffracted light of the pilot signal. Out-coupling is performed by a combination of an in-cavity half-wave plate and a polarizing beam splitter. This beam is reflected back into the nonlinear medium to generate the phase conjugated beam by four-wave mixing. Phase and direction of this beam can be manipulated without affecting the dynamic hologram thanks to the previous performed out-coupling. The final power transmission is realized by amplification of the phase conjugated beam. In this paper, we present initial results of the described setup. The angular range of generating the phase conjugated beam and its fidelity is analyzed.