基于回音壁腔光力系统的光学三极管

Photonic Transistor Device Based on a Whispering Gallery Mode Cavity Optomechanical System

摘要: 回音壁腔系统由于其高品质因子、小的模体积、以及简单的制造工艺而在光子器件方面有着潜在的应用。本文基于耦合的回音壁腔光力系统，通过光学泵浦-探测方案提出一种全光学三极管器件。该系统中透射信号由控制光场的功率所操控，而且信号场的放大和消逝可以通过控制栅极场的功率来实现，该器件表现出单光子光学三极管的行为。回音壁腔光力系统将在芯片尺度上的量子信息处理器件上有着潜在的应用。

Abstract: Whispering gallery mode (WGM) cavities, due to their high-quality factors, small mode volumes, and simple fabrications, have potential applications in photonic devices. In this paper, we present an all-optical transistor based on a coupled realistic WGM cavity optomechanical system with an optical pump-probe scheme. In the system, the transmission of the signal field is manipulated by the optical control power, and the signal field can be efficiently attenuated or amplified depending on the power of a second gating (control) field, which indicates a promising candidate for single-photon transistors. This WGM cavity optomechanical system may have potential chip scale applications in on-chip quantum information processing devices.