Engineering the spectra of photon triplets generated from micro/nanofiber

作     者：瞿川 郭东琴 李笑笑 刘振旗 赵义 张胜海 卫正统 Chuan Qu;Dongqin Guo;Xiaoxiao Li;Zhenqi Liu;Yi Zhao;Zhengtong Wei

作者机构：The College of Basic DepartmentInformation Engineering UniversityZhengzhou 450000China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2024年第33卷第3期

页      面：408-414页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.61605249) the Science and Technology Key Project of Henan Province of China(Grant Nos.182102210577 and 232102211086) 

主　　题：photon triplets micro/nanofiber spectrum engineering 

摘      要：Quantum light sources are the core resources for photonics-based quantum information *** investigate the spectral engineering of photon triplets generated by third-order spontaneous parametric down-conversion in micro/*** phase mismatching at one-third pump frequency gives rise to non-degenerate photon triplets,the joint spectral intensity of which has an elliptical locus with a fixed eccentricity of√6/***,we propose a frequency-division scheme to separate non-degenerate photon triplets into three channels with high heralding efficiency for the first *** an appropriate pump wavelength can compensate for the fabrication errors of micro/nanofiber and also generate narrowband,non-degenerate photon triplet sources with a high signal-to-noise ***,the long-period micro/nanofiber grating introduces a new controllable degree of freedom to tailor phase matching,resulting from the periodic oscillation of *** this scheme,the wavelength of photon triplets can be flexibly tuned using quasi-phase *** study the generation of photon triplets from this novel perspective of spectrum engineering,and we believe that this work will accelerate the practical implementation of photon triplets in quantum information processing.