Ultrabroadband photon pair preparation by spontaneous four-wave mixing in a dispersion-engineered optical fiber

被引：18

作者：

Garay-Palmett, Karina ^{[1
]}

U'Ren, Alfred B. ^{[1
,2
]}

Rangel-Rojo, Raul ^{[1
]}

Evans, Rodger ^{[1
]}

Camacho-Lopez, Santiago ^{[1
]}

机构：

[1] Ctr Invest Cient & Educ Super Ensenada, Dept Opt, Ensenada 22860, Baja California, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.78.043827

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a study of the spectral properties of photon pairs generated through the process of spontaneous four-wave mixing (SFWM) in single mode fiber. Our analysis assumes narrowband pumps, which are allowed to be frequency degenerate or nondegenerate. Based on this analysis, we derive conditions on the pump frequencies and on the fiber dispersion parameters which guarantee the generation of ultrabroadband photon pairs. Such photon pairs are characterized by (i) a very large degree of entanglement, and (ii) a very high degree of temporal synchronization between the signal and idler photons. Through a numerical exercise, we find that the use of photonic crystal fiber (PCF) facilitates the fulfilment of the conditions for ultrabroadband photon pair generation; in particular, the spectral region in which emission occurs can be adjusted to particular needs through an appropriate choice of the PCF parameters. In addition, we present a quantum interference effect, resulting from indistinguishable pathways to the same outcome, which can occur when pumping a SFWM source with multiple spectral lines.

引用

页数：13

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