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
收藏
页码：5957 / 5963
页数：7
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