Abstract
In this paper, we investigate the quantum fluctuations of subharmonic reflected field from a triple-resonant degenerate optical parametric amplifier (OPA) inside coupled optical resonators, which is driven by the squeezed beam at signal frequency. By controlling the relative phase between the pump beam and the injected signal beam, we can see the quantum fluctuation in the phase direction and amplitude direction due to the parametric down-conversion process in the cavity. Thus, the phase sensitive operation of the compression field is realized due to the quantum interference between the harmonic field of the down converter of OPA and the inner field of the coupled optical resonator. We verified the quantum coherent phenomena of OPA in coupled optical resonators and phase-sensitive manipulations of quantum entanglement for quantum information processing. We realized the electromagnetically induced transparency-like (EIT-like) effect and the optical parameter conversion process at the same time in one optical device. These properties can favor higher manipulation precision and control efficiency, which is more suitable for the integration of quantum-on-chip systems, laying a foundation for the practical application of quantum information.
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This work has been supported by the National Natural Science Foundation of China (Nos.11704053, 61705027 and 62005033), the National Key R&D Program of China (Nos.2018YFF01010202 and 2018YFF01010201), the Science and Technology Research Program of Chongqing Municipal Education Commission (Nos.KJQN201800629 and KJQN201800621), the Innovation Leader Talent Project of Chongqing Science and Technology (No.CSTC-CXLJRC201711), the Postdoctoral Applied Research Program of Qingdao (No.62350079311135), and the Postdoctoral Applied Innovation Program of Shandong (No.62350070311227).
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Di, K., Wang, W., Cui, W. et al. Phase-sensitive manipulation of squeezed state by a degenerate optical parametric amplifier inside coupled optical resonators. Optoelectron. Lett. 18, 135–142 (2022). https://doi.org/10.1007/s11801-022-1149-z
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DOI: https://doi.org/10.1007/s11801-022-1149-z