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Optical Fiber Dispersion Equalization based on Quantum Nonlinear Optical Signal Processing using Optical parametric Amplifiers and Optical Products Summation Operation

基于光参量放大器和光乘积求和运算的量子非线性光信号处理的光纤色散均衡

基本信息

批准号：
14350207
负责人：
OZEKI Takeshi
金额：
$ 6.91万
依托单位：
Sophia University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

项目摘要

Final target of this project is a trial of Quantum Optical Signal Processing for equalizing optical fiber dispersions using strongly correlated signal and idler photons generated an optical parametric amplifier at an optical receiver node.We completed the theoretical verification of quantum dispersion equalization using coincidence detection provability for sum frequency generation of output signal and idler photons of the optical parametric amplifiers. This scheme can be applied in such an optical packet transmission systems through optical fibers with various linear chromatic dispersions and nonlinear phase modulations, where even-order dispersions can be compensated. This theoretical verification is recognized as an important contribution for publication in Optics Letters.For experimental preparation of the trial, we developed the optical fiber parametric amplifiers with high gain of 45dB and studied for improving quantum correlation between amplified signal and idler photons, where we proposed a novel method to evaluate phase mismatch in birefringent nonlinear fibers, for the first time, reported in 0FC2004. And also, we extended the study on PMD distiribution measurement method to propose asymmetric Rayleigh Backscattering model in polarimetric OTDR, which results in the mode conversion in nonlinear fibers. We tried total quantum dispersion equalization scheme to find an unexpected very sophisticated adjustment subsystem to the frequency tuning in PPLN.

该项目的最终目标是尝试利用强相关信号和闲置光子在光接收节点产生光参量放大器来均衡光纤色散的量子光信号处理。我们完成了利用输出信号和频产生的量子色散均衡的符合检测证明和光参量放大器的闲置光子的理论验证。这种方案可以应用于这样的光分组传输系统中，通过具有各种线性色散和非线性相位调制的光纤，其中偶数阶色散可以被补偿。这一理论验证被认为是发表在《光学快报》上的一项重要贡献。为了做好实验准备，我们开发了高增益为45db的光纤参数放大器，并研究了提高放大信号与空闲光子之间的量子相关性，其中我们首次提出了一种新的方法来评估双折射非线性光纤中的相位失配，报告于2004年0FC2004。同时，对偏振模色散分布测量方法进行了扩展，提出了偏振OTDR中的非对称瑞利后向散射模型，从而实现了非线性光纤中的模式转换。我们尝试了全量子色散均衡方案，在PPLN中找到了一个意想不到的非常复杂的频率调谐调节子系统。