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首页> 外文期刊>Journal of Modern Optics >Development of photon pair sources using periodically poled lithium niobate waveguide technology and fiber optic components
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Development of photon pair sources using periodically poled lithium niobate waveguide technology and fiber optic components

机译：使用周期性极化铌酸锂波导技术和光纤组件开发光子对源

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摘要

To support quantum technologies that require entangled photon pairs and/or heralded photons for operation, a photon pair source was developed that uses periodically poled lithium niobate (PPLN) waveguides that are coupled to optical fibers. Both Ti-indiffused and annealed proton-exchanged (APE) waveguide technologies were studied, and waveguide/fiber interfaces were designed to increase the coupling efficiency of the photon pairs into optical fiber. PPLN waveguide devices were fabricated and the optical loss, wavelength conversion efficiency, and heralding efficiency were measured. The maximum heralding efficiencies achieved were 75 and 68% for Ti-indiffused and APE waveguides, respectively. A compact photon pair source based on a packaged PPLN waveguide device and commercially available fiber optic components is presented.
机译：为了支持需要纠缠光子对和/或先驱光子才能工作的量子技术，开发了使用耦合到光纤的周期性极化铌酸锂（PPLN）波导的光子对源。研究了Ti注入和退火的质子交换（APE）波导技术，并设计了波导/光纤界面以提高光子对与光纤的耦合效率。制造了PPLN波导器件，并测量了光损耗，波长转换效率和导光效率。 Ti注入和APE波导的最大预言效率分别为75％和68％。提出了一种基于封装的PPLN波导器件和商用光纤组件的紧凑型光子对源。

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