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CN109429509A - A device for generating time-entangled photon pairs - Google Patents

A device for generating time-entangled photon pairs Download PDF

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Publication number
CN109429509A
CN109429509A CN201780003258.9A CN201780003258A CN109429509A CN 109429509 A CN109429509 A CN 109429509A CN 201780003258 A CN201780003258 A CN 201780003258A CN 109429509 A CN109429509 A CN 109429509A
Authority
CN
China
Prior art keywords
waveguide structure
pump light
substrate
light pulse
entangled photon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201780003258.9A
Other languages
Chinese (zh)
Inventor
耿巍
张臣雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN109429509A publication Critical patent/CN109429509A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/365—Non-linear optics in an optical waveguide structure

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

本申请公开一种纠缠光子对产生装置，包括衬底和泵浦光源，位于衬底上的第一波导结构和第二波导结构；泵浦光源，用于向第一波导结构发射泵浦光；第一波导结构，用于对泵浦光进行时间分光后交替输出第一泵浦光脉冲和第二泵浦光脉冲；第二波导结构，用于将第一泵浦光脉冲或第二泵浦光脉冲中的两个泵浦光子转化为纠缠光子对。将第一波导结构、第二波导结构和泵浦光源集成在同一衬底上，可以减小器件尺寸。衬底上的第一波导结构和第二波导结构都是基于衬底上的同一波导材质刻蚀形成的，因此其制作工艺可以与CMOS工艺兼容，有利于器件的量化生产和降低成本。

The present application discloses a device for generating entangled photon pairs, comprising a substrate and a pump light source, a first waveguide structure and a second waveguide structure located on the substrate; the pump light source is used for emitting pump light to the first waveguide structure; The first waveguide structure is used for time splitting the pump light to output the first pump light pulse and the second pump light pulse alternately; the second waveguide structure is used for the first pump light pulse or the second pump light pulse The two pump photons in the light pulse are converted into entangled photon pairs. The device size can be reduced by integrating the first waveguide structure, the second waveguide structure and the pump light source on the same substrate. Both the first waveguide structure and the second waveguide structure on the substrate are formed by etching the same waveguide material on the substrate, so the fabrication process can be compatible with the CMOS process, which is beneficial to the quantitative production of devices and cost reduction.

Description

PCT国内申请，说明书已公开。PCT domestic application, the description has been published.

Claims (13)

PCT国内申请，权利要求书已公开。PCT domestic application, the claims have been published.
CN201780003258.9A 2017-06-22 2017-06-22 A device for generating time-entangled photon pairs Pending CN109429509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/089537 WO2018232689A1 (en) 2017-06-22 2017-06-22 Time entangled photon pair generating device

Publications (1)

Publication Number Publication Date
CN109429509A true CN109429509A (en) 2019-03-05

Family

ID=64735434

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201780003258.9A Pending CN109429509A (en) 2017-06-22 2017-06-22 A device for generating time-entangled photon pairs

Country Status (2)

Country Link
CN (1) CN109429509A (en)
WO (1) WO2018232689A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111323986A (en) * 2019-12-18 2020-06-23 西南技术物理研究所 System for generating three-photon polarization-entangled GHZ state based on Sagnac optical fiber loop
CN112946968A (en) * 2021-02-01 2021-06-11 电子科技大学 Hybrid integrated optical communication waveband on-chip quantum entanglement source

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11588613B1 (en) 2021-10-26 2023-02-21 Eagle Technology, Llc Systems and methods for synchronization of photons over quantum channels with co-propagating clock pulses

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US20100111541A1 (en) * 2007-03-08 2010-05-06 Qutools Gmbh Generation of Quantum-Correlated and/or Polarization Entangled Photon Pairs with Unequal Wavelengths
JP2013109088A (en) * 2011-11-18 2013-06-06 Nippon Telegr & Teleph Corp <Ntt> Polarized entangled photon pair generating element
CN103901700A (en) * 2014-05-06 2014-07-02 天津大学 Mini-type quantum relevancy photon pair source with adjustable wavelength and controllable frequency spectrum and generating method
CN103959704A (en) * 2011-09-30 2014-07-30 中央科学研究中心 Method and device for synchronizing entanglement sources for a quantum communication network
CN104330938A (en) * 2014-10-16 2015-02-04 南京大学 Optical superlattice- and waveguide light path-based quantum light source chip

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US8265280B2 (en) * 2004-11-05 2012-09-11 Nucrypt Llc System and method of entangled photons generation
WO2009093391A1 (en) * 2008-01-25 2009-07-30 Japan Science And Technology Agency Non-degenerate polarization-entangled photon pairs generation device and non-degenerate polarization-entangled photon pairs generation method
CN101398590A (en) * 2008-11-06 2009-04-01 天津大学 All-optical frequency entangled photon source
CN102130418B (en) * 2011-01-26 2013-07-17 清华大学 Polarization-entangled quantum light source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100111541A1 (en) * 2007-03-08 2010-05-06 Qutools Gmbh Generation of Quantum-Correlated and/or Polarization Entangled Photon Pairs with Unequal Wavelengths
CN103959704A (en) * 2011-09-30 2014-07-30 中央科学研究中心 Method and device for synchronizing entanglement sources for a quantum communication network
JP2013109088A (en) * 2011-11-18 2013-06-06 Nippon Telegr & Teleph Corp <Ntt> Polarized entangled photon pair generating element
CN103901700A (en) * 2014-05-06 2014-07-02 天津大学 Mini-type quantum relevancy photon pair source with adjustable wavelength and controllable frequency spectrum and generating method
CN104330938A (en) * 2014-10-16 2015-02-04 南京大学 Optical superlattice- and waveguide light path-based quantum light source chip

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
HIROKI TAKESUE等: "Generation of polarization-entangled photon pairs and violation of Bell’s inequality using spontaneous four-wave mixing in a fiber loop", 《PHYSICAL REVIEW A》 *
RYAN M. CAMACHO: "Entangled photon generation using four-wave mixing in azimuthally symmetric microresonators", 《OPTICS EXPRESS》 *
吕宁: "纳米硅波导中偏振纠缠双光子的产生", 《中国优秀硕士学位论文全文数据库-信息科技辑》 *
杨磊等: "利用光纤中自发四波混频产生纠缠光子的实验装置", 《物理学报》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111323986A (en) * 2019-12-18 2020-06-23 西南技术物理研究所 System for generating three-photon polarization-entangled GHZ state based on Sagnac optical fiber loop
CN111323986B (en) * 2019-12-18 2022-07-22 西南技术物理研究所 System for generating three-photon polarization entangled GHZ state based on Sagnac optical fiber loop
CN112946968A (en) * 2021-02-01 2021-06-11 电子科技大学 Hybrid integrated optical communication waveband on-chip quantum entanglement source
CN112946968B (en) * 2021-02-01 2022-01-07 电子科技大学 A hybrid integrated optical communication band on-chip quantum entanglement source

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Publication number Publication date
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Application publication date: 20190305