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Hybrid 2D–3D optical devices for integrated optics by direct laser writing

Light(Science & Applications) 2014年第1期3卷 173-181页

作者： Martin Schumann Tiemo Buckmann Nico Gruhler Martin Wegener Wolfram Pernice Institute of Applied Physics and DFG-Center for Functional Nanostructures(CFN) Karlsruhe Institute of Technology(KIT)76131 KarlsruheGermany Institute of Nanotechnology(INT) 76344 Eggenstein-LeopoldshafenGermany

integrated optical chips have already been established for application in optical *** also offer interesting future perspectives for integrated quantum optics on a *** present,however,they are mostly fabricated using essentially planar fabrication approaches like electron-beam lithography or UV optical *** further design options would arise if one had complete fabrication freedom in regard to the third dimension normal to the chip without having to give up the virtues and the know-how of existing planar fabrication *** a step in this direction,we here use three-dimensional dip-in direct-laser-writing optical lithography to fabricate three-dimensional polymeric functional devices on pre-fabricated planar optical chips containing Si3N4 waveguides as well as grating couplers made by standard electron-beam *** first example is a polymeric dielectric rectangular-shaped waveguide which is connected to Si3N4 waveguides and that is adiabatically twisted along its axis to achieve geometrical rotation of linear polarization on the *** rotator’s broadband performance at around 1550 nm wavelength is verified by polarization-dependent grating *** polarization rotation on the optical chip cannot easily be achieved by other *** second example is a whispering-gallery-mode optical resonator connected to Si_(3)N_(4) waveguides on the chip via polymeric *** mechanically connecting the latter to the disk,we can control the coupling to the resonator and,at the same time,guarantee mechanical stability of the three-dimensional architecture on the chip.

关键词： direct laser writing integrated optics nanophotonic circuits polarization conversion

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integrated optics Acoustooptic Receiver

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Semiconductor Photonics and Technology 1996年第3期2卷 159-167页

作者： PUTianchun LIUYongzi ChongqingOptoelectronicsResearchInstitute Yongchuan632163CHN UniversityofElectronicSeienceandTechnology Chengdu610054CHN

The recent advances on the research and the applications of the integrated optics acousto-optic spectrum analyzer(IOSA) are reviewed. The operating principle, architecture, characteristics and technology, and future d... 详细信息

关键词： Acoustic-optic Technology integrated optics Spectrum Analyzer

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In-fiber integrated optics： an emerging photonics integration technology [Invited]

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Chinese optics Letters 2018年第11期16卷 14-21页

作者： Xiaotong Zhang Tingting Yuan Xinghua Yang Chunying Guan Jun Yang Zhihai Liu Hongchang Deng Libo Yuan Key Laboratory of In-Fiber integrated optics Ministry of EducationCollege of ScienceHarbin Engineering UniversityHarbin 150001China Photonics Research Center School of Electric Engineering and AutomationGuilin University of Electronics TechnologyGuilin 541004China Corresponding author：lbyuan@***

In-fiber integrated optics is an attempt to use silica fiber as a substrate, integrating various optical paths or optical components into a single fiber, to build a functional optical device or component, and to realize a micro optical system, achieving various functions. In-fiber integrated optics is expected to he a new branch of photonics integration. This integration technique enables convenient light beams control and manipulation inside in one fiber. It also provides a research platform with micro and nano scale for interaction between light wave and microfluidic materials. In this review, we briefly summarize the main ideas and key technologies of the in-fiber integrated optics by series integration examples.

关键词： Beam manipulation integrated optics Light beams Optical components Silica fibers

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integrated sources of photon quantum states based on nonlinear optics

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Light(Science & Applications) 2017年第1期6卷 370-381页

作者： Lucia Caspani Chunle Xiong Benjamin J Eggleton Daniele Bajoni Marco Liscidini Matteo Galli Roberto Morandotti David J Moss Institute of Photonics Department of PhysicsUniversity of StrathclydeGlasgow G11RDUK Institute of Photonics and Quantum Sciences Heriot-Watt UniversityEdinburgh EH144ASUK Centre for Ultrahigh bandwidth Devices for Optical Systems(CUDOS) Institute of Photonics and Optical Science(IPOS)School of PhysicsUniversity of SydneySydneyNSW 2006Australia Dipartimento di Ingegneria Industriale e dell’Informazione Universitàdi Paviavia Ferrata 127100PaviaItaly Dipartimento di Fisica Universitàdi Paviavia Bassi 627100 PaviaItaly INRS-EMT 1650 Boulevard Lionel-BouletVarennesQuébec J3X 1S2Canada Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China National Research University of Information Technologies Mechanics and OpticsSt.PetersburgRussia Center for Microphotonics Swinburne University of TechnologyHawthornVictoria3122 Australia

The ability to generate complex optical photon states involving entanglement between multiple optical modes is not only critical to advancing our understanding of quantum mechanics but will play a key role in generating many applications in quantum *** include quantum communications,computation,imaging,microscopy and many other novel technologies that are constantly being ***,approaches to generating parallel multiple,customisable bi-and multi-entangled quantum bits(qubits)on a chip are still in the early stages of ***,we review recent advances in the realisation of integrated sources of photonic quantum states,focusing on approaches based on nonlinear optics that are compatible with contemporary optical fibre telecommunications and quantum memory platforms as well as with chip-scale semiconductor *** new and exciting platforms hold the promise of compact,low-cost,scalable and practical implementations of sources for the generation and manipulation of complex quantum optical states on a chip,which will play a major role in bringing quantum technologies out of the laboratory and into the real world.

关键词： entanglement integrated optics nonlinear optics photon pairs quantum optics quantum states

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Electrically pumped metallic and plasmonic nanolasers

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Chinese Physics B 2018年第11期27卷 158-166页

作者： Martin T Hill School of Electrical Electronic and Computer Engineering The University of Western Australia

In recent years, there have been a significant number of demonstrations of small metallic and plasmonic lasers. The vast majority of these demonstrations have been for optically pumped devices. Electrically pumped devices are advantageous for applications and could demonstrate concepts not amenable for optical pumping. However, there have been relatively few demonstrations of electrically pumped small metal cavity lasers. This lack of results is due to the following reasons： there are limited types of electrically pumped gain media available; there is a significantly greater level of complexity required in the fabrication of electrically pumped devices; finally, the required components for electrical pumping restrict cavity design options and furthermore make it intrinsically more difficult to achieve lasing. This review looks at the motivation for electrically pumped nanolasers, the key issues that need addressing for them to be realized, the results that have been achieved so far including devices where lasing has not been achieved, and potential new directions that could be pursued.

关键词： semiconductor lasers laser diode microcavity and microdisk laser integrated optics

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A novel three-component hybrid-integrated optical accelerometer based on a Mach-Zehnder interferometer with a LiNbO_3 photoelastic waveguide

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第4期10卷 595-600页

作者： Dong-lin TANG Xiao-dong ZHANG Guang-hui ZHAO Zhi-yong DAI Xin LAI Feng GUO MOE Key Laboratory for Petroleum-Gas Equipment Southwest Petroleum University Chengdu 610500 China School of Optoelectronic Information University of Electronic Science and Technology Chengdu 610054 China

An investigation of the properties ofa LiNbO3 photoelastic waveguide via the acceleration-induced effect is presented. A novel three-component hybrid-integrated optical accelerometer based on a Mach-Zehnder interferometer with a LiNbO3 photoelastic waveguide has been designed, which is capable of detecting seismic acceleration in high-accuracy seismic exploration. The Mach-Zehnder interferometer was successfully fabricated and a lighting test used to check its quality. The frequency response characteristic of the accelerometer was measured2 The accelerometer with a resonant frequency of 3549 Hz was demonstrated to show good linear frequency responding characteristics in the range of 100-3000 Hz. The accelerometer also shows good stability and consistency. Experimental results indicate that the outputs of the on- and cross-axis are 147 and 21.3 mV, respectively.

关键词： integrated optics Accelerometer Photoelastic waveguide Mach-Zehnder interferometer (MZI)

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Observation of dipolar transport in one-dimensional photonic lattices

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Science Bulletin 2017年第5期62卷 339-344页

作者： Camilo Cantillano Luis Morales-Inostroza Bastián Real Santiago Rojas-Rojas Aldo Delgado Alexander Szameit Rodrigo A.Vicencio Departamento de Física MSI-Nucleus on Advanced Opticsand Center for Optics and Photonics(CEFOP)Facultad de CienciasUniversidad de ChileSantiagoChile Center for optics and Photonics and MSI-Nucleus on Advanced optics Universidad de ConcepciónCasilla 160-C ConcepcionChile Institute for Physics University of RostockD-18059 RostockGermany

We experimentally study the transport properties of dipolar and fundamental modes on one dimensional(1D) coupled waveguide arrays. By carefully modulating a wide optical beam, we are able to effectively excite dipolar or fundamental modes to study discrete diffraction(single-site excitation) and gaussian beam propagation(multi-site excitation plus a phase gradient). We observe that dipolar modes experience a larger spreading area due to an effective larger coupling constant, which is found to be more than two times larger than the one for fundamental modes. Additionally, we study the effect of non-diagonal disorder and find that while fundamental modes are already trapped on a weakly disorder array, dipoles are still able to propagate across the system.

关键词： Photonic lattices Waveguide arrays Wave propagation integrated optics

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Enhancement of the second harmonic generation from monolayer WS_(2) coupled with a silica microsphere

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Chinese Physics B 2022年第10期31卷 417-422页

作者： Xiao-Zhuo Qi Xi-Feng Ren CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China

Monolayer transition metal dichalcogenides(TMDs) are widely used for integrated optical and photoelectric *** to their broken inversion symmetry, monolayer TMDs have a large second-order optical nonlinearity. However, the optical second-order nonlinear conversion efficiency of monolayer TMDs is still limited by the interaction length. In this work, we theoretically study the second harmonic generation(SHG) from monolayer tungsten sulfide(WS2) enhanced by a silica microsphere cavity. By tuning the position, size, and crystal orientation of the material, second-order nonlinear coupling can occur between the fundamental pump mode and different second harmonic cavity modes, and we obtain an optimal SHG conversion efficiency with orders of magnitude enhancement. Our work demonstrates that the microsphere cavity can significantly enhance SHG from monolayer 2D materials under flexible conditions.

关键词： integrated optics frequency conversion

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Long-range surface plasmon polaritons with subwavelength mode expansion in an asymmetrical system

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Chinese Physics B 2009年第8期18卷 3535-3541页

作者：陈建军李智龚旗煌 State Key Laboratory for Mesoscopic Physics and Department of Physics Peking University

Long-range surface plasmon polariton （LRSPP） modes in an asymmetrical system, in which the thin metal film is sandwiched between a semi-infinite substrate and a high permittivity polymer film with a finite thickness, are theoret~ ically calculated and analyzed. Due to the high permittivity of the polymer film, at proper polymer film thicknesses, the index-matching condition of the dielectrics at both sides of the metal can be satisfied for supporting LRSPP modes, and the electromagnetic field above the metal can be localized well. It is found that these LRSPP modes have both long propagation lengths and subwavelength mode expansion above the metal at the optimal polymer film thickncsses. Furthermore, the requirements on the refractive index and the thickness of the polymer film to support LRSPP modes at the optimal thicknesses are found to be not critical.

关键词： surface plasmon polaritons field intensity confinement long propagation length integrated optics

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Chip-Based High-Dimensional Optical Neural Network

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Nano-Micro Letters 2022年第12期14卷 570-578页

作者： Xinyu Wang Peng Xie Bohan Chen Xingcai Zhang School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Department of Engineering Science University of OxfordParks RoadOxford OX13PJUK School of Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA John A.Paulson School of Engineering and Applied Sciences Harvard UniversityCambridgeMA 02138USA

Parallel multi-thread processing in advanced intelligent processors is the core to realize high-speed and high-capacity signal processing *** neural network(ONN)has the native advantages of high parallelization,large bandwidth,and low power consumption to meet the demand of big ***,we demonstrate the dual-layer ONN with Mach-Zehnder interferometer(MZI)network and nonlinear layer,while the nonlinear activation function is achieved by optical-electronic signal *** frequency components from the microcomb source carrying digit datasets are simultaneously imposed and intelligently recognized through the *** successfully achieve the digit classification of different frequency components by demultiplexing the output signal and testing power *** parallelization feasibility with wavelength division multiplexing is demonstrated in our high-dimensional *** work provides a high-performance architecture for future parallel high-capacity optical analog computing.

关键词： integrated optics Optical neural network High-dimension Mach-Zehnder interferometer Nonlinear activation function Parallel high-capacity analog computing

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