Bragg-grating-enhanced narrowband spontaneous parametric downconversion

被引：5

作者：

Yan, Li ^{[1
]}

Ma, Lijun ^{[2
]}

Tang, Xiao ^{[2
]}

机构：

[1] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Baltimore, MD 21250 USA

[2] NIST, Informat Technol Lab, Gaithersburg, MD 20899 USA

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 06期

关键词：

POLED LITHIUM-NIOBATE; PHOTON PAIRS; WAVE-GUIDE; QUANTUM TELEPORTATION; ENTANGLED PHOTONS; DOWN-CONVERSION; TIME; GENERATION;

D O I：

10.1364/OE.18.005957

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a new method to narrow the line width of entangled photons generated from spontaneous parametric downconversion ( SPDC). The single structure device incorporates an internal Bragg grating onto a nonlinear optical waveguide. We study theoretically the spectral characteristics of SPDC under two Bragg grating structures. We show that using the Bragg grating with a midway pi-phase shifter, it is a promising way to generate narrow-line (similar to GHz to sub-GHz) entangled photons. (C) 2010 Optical Society of America

引用

页码：5957 / 5963

页数：7

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