Highly efficient generation of pulsed photon pairs with bulk periodically poled potassium titanyl phosphate

被引：19
|
作者：
Shi, BS [1 ]
Tomita, A [1 ]
机构：
[1] NEC Corp Ltd, Imai Quantum Computat & Informat Project, Fundamental Res Labs, Japan Sci & Technol Agcy,NEC Tsukuba Labs,Explora, Tsukuba, Ibaraki 3058501, Japan
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2004年 / 21卷 / 12期
关键词：
D O I：
10.1364/JOSAB.21.002081
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate efficient generation of collinearly propagating, degenerate pulsed photon pairs based on a bulk periodically poled potassium titanyl phosphate pumped by an ultrashort-pulse laser. Using a single-mode fiber as a spatial mode filter, we detect approximately 3200 coincidence counts per second per milliwatt pump power in a Hanbury-Brown-Twiss-type experiment. The estimated photon-pair production rate is approximately 1.05 MHz/mW pump power. This is very promising for the realization of sources for quantum communication and metrology. (C) 2004 Optical Society of America.
引用
收藏
页码：2081 / 2084
页数：4
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