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Optical Sensing： the Last Frontier for Enabling Intelligence in Our Wired up World and Beyond

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Photonic Sensors 2012年第3期2卷 193-202页

作者： john canning Interdisciplinary Photonics Laboratories (iPL) School of Chemistry 222 Madsen Building F09 The University ofSydney NSW 2006 Australia

Consigned to the shadows of telecommunications, optical sensing has often taken a back seat in a young person＇s mind when considering the importance of photonics, or optics, to the advancement of the society and of knowledge. Here, I touch on briefly how broad optical sensing and sensing generally has become and how and why it is becoming the catalyst for the convergence of many technologies and in the process raising significant philosophical questions about the transformation of our society and indeed ourselves. In doing so I touch on many of the complexities in real life that influence the breakthroughs we see today, including a healthy speculation and critique on our society and an awareness of the motivations to improve it that drive many of them.

关键词： Optical sensors galactic village global village wireless smartphones science fiction energy medical biodiagnostics education students optical fiber

Large Dynamic Range SPR Measurements Using a ZnSe Prism

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Photonic Sensors 2015年第3期5卷 278-283页

作者： john canning Jing QIAN Kevin COOK interdisciplinary Photonics Laboratories School of Chemistry The University of Sydney NSW 2006 Australia

A large dynamic index measurement range （n =1 to n = 1.7） using surface plasmon resonance （SPR） shifts was demonstrated with a ZnSe prism at 632.8nm, limited by the available high index liquid hosts. In contrast to borosilicate based SPR measurements, where angular limitations restrict solvent use to water and require considerable care dealing with Fresnel reflections, the ZnSe approach allows SPR spectroscopies to be applied to a varied range of solvents. An uncertainty in angular resolution between 1.5° and 6°, depending on the solvent and SPR angle, was estimated. The refractive index change for a given glucose concentration in water was measured to be n = （0.114 ± 0.007）/%[C6H12O6]. Given the transmission properties of ZnSe, the processes can be readily extended into the mid infrared.

关键词： Plasmonics surface plasmons surface waves scattering spectroscopy metal optics

Stable CW Single-Mode Photonic Crystal Fiber DFB Ring Laser

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Journal of Electronic Science and Technology of China 2008年第4期6卷 442-444页

作者： Kevin Cook john canning john Holdsworth Chris Dewhurst Interdisciplinary Photonics Laboratories School of Chemistry University of Sydney NSW 2006 Australia the School of Mathematical and Physical Sciences University of Newcastle Callaghan NSW 2308 Australia and is currently on Sabbatical at The University of Sydney

We demonstrate stable single-mode CW operation of a DFB ring laser based on Er3＋ doped photonics crystal fiber （PCF）. The incorporation of a ring cavity allows one single mode to lase and also suppresses the unwant... 详细信息

关键词： Fiber lasers fiber optics photonic crystal fibers.

Birefringent Bragg Gratings in Highly-Nonlinear Photonic Crystal Fiber

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Journal of Electronic Science and Technology of China 2008年第4期6卷 426-428页

作者： Kevin. Cook john. canning john. Holdswowth Interdisciplinary Photonics Laboratories School of Chemistry University of Sydney NSW 2006 Australia the School of Mathematical and Physical Sciences University of Newcastle Callaghan NSW 2308 Australia

Efficient writing of Bragg gratings in 12-ring highly-nonlinear photonie crystal fibers is described. Experimental and numerical investigations are performed to reveal the optimum angle for coupling UV writing light to the core. Furthermore, we show that the formation of a strongly briefringent grating is at a particular angle of orientation.

关键词： Bragg gratings fiber optics photonic crystal fiber.

Ultra-High Temperature Gratings

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Journal of Electronic Science and Technology of China 2008年第4期6卷 420-422页

作者： john canning Somnath Bandyopadhyay Michael Stevenson Kevin Cook the Interdisciplinary Photonics Laboratories (iPL) School of Chemistry University of Sydney Sydney NSW 2006 Australia currently at the Central Glass and Ceramic Research Institute (CGCRI) Kolkata 700032 India.

Regenerated gratings seeded by type-I gratings are shown to withstand temperatures beyond 1000 ℃. The method of regeneration offers a new approach to increasing temperature resistance of stable fibre Bragg and other gratings. These ultra-high temperature （UHT） gratings extend the applicability of silicate based components to high temperature applications such as monitoring of smelters and vehicle and aircraft engines to high power fibre lasers.

关键词： Annealing Bragg gratings regenerated gratings temperature sensing ultra-high temperature.

Grating Writing in Structured Optical Fibers

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Photonic Sensors 2011年第3期1卷 199-203页

作者： john canning Nathaniel GROOTHOFF Kevin COOK Michael STEVENSON john HOLDSWORTH Matthieu LANCRY Bertrand POUMELLEC Interdisciplinary Photonics Laboratories (iPL) School of Chemistry University of Sydney Sydney NSW 2006Australia School of Mathematical and Physical Sciences University of Newcastle Callaghan 2308 NSW Australia Institut de Chimie Mol~culaire et des Mat~riaux d'Orsay UMR CNRS-UPS 8182 Universite de Paris Sud 11 Bdtiment410 91405 Orsay France

Grating writing in structured optical fibers is reviewed. Various laser sources have been used including UV and near IR nanosecond and femtosecond lasers, each enabling different material processing regimes. The issue... 详细信息

关键词： Gratings structured optical fibers Fresnel fibers photonic crystal fibers microstructured optical fibers sensors

Room Temperature Sol-Gel Fabrication and Functionalization for Sensor Applications

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Photonic Sensors 2013年第2期3卷 168-177页

作者： George HUYANG john canning Ingemar PETERMANN David BISHOP Andrew McDONAGH Maxwell J. CROSSLEY School of Chemistry The University of Sydney NSW 2006 Australia Interdisciplinary Photonic Laboratories (iPL) School of Chemistry 222 Madsen Building F09 The University of Sydney NSW 2006 Australia University of Technology Sydney Broadway NSW 200 7 Australia

The structure and physical properties of a thin titania sol-gel layer prepared on silicon and silica surfaces were examined. Spectroscopic （FTIR, UV-VIS spectroscopy）, refractive index （ellipsometry） and microscopic （light microscopy and SEM/EDS） tools were used to examine both chemical uniformity and physical uniformity of the sol-gel glass layers. The conditions for the fabrication of uniform layers were established, and room temperature dopant incorporation was examined. The absorption bands of porphyrin-containing titania sol-gel layers were characterized. By addition of a metal salt to the titania layer, it was possible to metallate the free-base porphyrin within and change the UV-VIS absorbance of the porphyrin, the basis of metal detection using porphyrins. The metalloporphyrins were detected by localized laser ablation inductive coupled mass spectroscopy （LA-ICP-MS）, indicating fairly uniform distribution of metals across the titania surface.

关键词： Sol-gel titania titanium dioxide evanescent field sensor organic compound spectroscopy microscopy surface functionalization ablation inductive coupled mass spectroscopy

Structure formation dynamics in drawing silica photonic crystal fibres

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Frontiers of Optoelectronics 2018年第1期11卷 69-76页

作者： Wenyu WANG Ghazal Fallah TAFTI Mingjie DING Yanhua LUO Yuan TIAN Shuai WANG Tomasz KARPISZ john canning Kevin COOK Gang-Ding PENG Photonics and Optical Communications School of Electrical Engineering and Telecommunications University of New South Wales (UNSW) Sydney 2052 Australia Henan Key Laboratory of Laser and Opto-Electric Information Technology School of Information Engineering Zhengzhou University Zhengzhou 450052 China Warsaw University of Technology 00-665 Warsaw Poland interdisciplinary Photonics Laboratories (iPL) School of Electrical and Data EngineeringUniversity of Technology Sydney and School of Chemistry The University of Sydney NSW 2007 & 2006 Australia

The special features of photonic crystal fibres（PCFs）are achieved by their air hole *** structure is determined and formed by its origin preform design and drawing ***,structure formation dynamics in drawing PCF is important for the fabrication of PCF achieving desirable structure and thus the intended *** paper will investigate structure formation dynamics of PCF drawing in relation to key parameters and conditions,such as hole dimension,temperature,pressure,etc.

关键词： photonic crystal fibre (PCF) structure formation hole dimension hole position hole shift

Advances and New Applications Using the Acousto-Optic Effect in Optical Fibers

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Photonic Sensors 2013年第1期3卷 1-25页

作者： Alexandre A. P. POHL Roberson A. OLIVEIRA Ricardo E. DA SILVA Carlos A. F. MARQUES Paulo de Tarso NEVES JR. Kevin COOK john canning Rogério N. NOGUEIRA3 Advanced Telecommunications Laboratory Federal University of Technology - Paraná Curitiba Brazil Volvo GTT Advanced Technology & Research Curitiba Brazil Instituto de Telecomunicagōes P6lo de Aveiro 3810-193 Aveiro Portugal Interdisciplinary Photonics Labs School of Chemistry University of Sydney New South Wales 2006 Australia

This work presents a short review of the current research on the acousto-optic mechanism applied to optical fibers. The role of the piezoelectric element and the acousto-optic modulator in the excitation of flexural and longitudinal acoustic modes in the frequency range up to 1.2 MHz is highlighted. A combination of the finite elements and the transfer matrix methods is used to simulate the interaction of the waves with Bragg and long period gratings. Results show a very good agreement with experimental data. Recent applications such as the writing of gratings under the acoustic excitation and a novel viscometer sensor based on the acousto-optic mechanism are discussed.

关键词： Acousto-optics fiber gratings optical fibers optical sensors