Steven Manos

University of Melbourne

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L. Poladian

University of Sydney

Maryanne C. J. Large

University of Sydney

Peter V. Coveney

University College London

Nader A. Issa

University of Sydney

Alexander Argyros

University of Sydney

Stefan J. Zasada

University College London

Martijn A. van Eijkelenborg

University of Sydney

G.W. Barton

University of Sydney

Joseph Zagari

Australian Antarctic Division

I.M. Bassett

Victoria University of Wellington

Cooperative Institutions

University College London

University of Sydney

University of Technology Sydney

University of Melbourne

Imperial College London

Forschungszentrum Jülich

University of Manchester

Pompeu Fabra University

Stanford University

National Technical University of Athens

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Electron tomography and computer visualisation of a three-dimensional ‘photonic’ crystal in a butterfly wing-scale

Micron (2002)

Alexander Argyros Steven Manos Maryanne C. J. Large David R. McKenzie Guy Cox

Triclinic crystal system

Lattice (music)

10.1016/s0968-4328(01)00044-0

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Citations (81)

A combinatorial genetic algorithm for the configuration of the 2dF/AAOmega spectrograph at the anglo-Australian observatory

Steven Manos Geraint F. Lewis

To help unravel the structure of the universe, astronomers have developed systems which observe large clusters of objects at the same time. One such system is the 2-degree field spectrograph at the Anglo Australian Observatory. This system uses 400 fibres which can observe and measure the spectra of up to 400 astronomical objects in parallel. These optical fibres are positioned by a robotic arm. During placement, complex fibre entanglements often occur, reducing the overall efficiency of the system. This work aims to develop a combinatorial genetic algorithm which can help increase the efficiency of these systems by evolving sequences of fibre re-positionings. We present an integer-based representation developed for this GA which has the ability to automatically satisfy hard constraints during sequence seeding, mutation and recombination. We also present some initial results in re-configuring fibre placements.

Representation

Sequence (biology)

10.1145/1143997.1144106

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Evolving Microstructured Optical Fibres

Studies in computational intelligence (2008)

Steven Manos Peter J. Bentley

Microstructured optical fiber

Representation

10.1007/978-3-540-75771-9_5

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Photonic Device Design Using Multiobjective Evolutionary Algorithms

Lecture notes in computer science (2005)

Steven Manos L. Poladian Peter J. Bentley Maryanne C. J. Large

Representation

Fiber Bragg Grating

10.1007/978-3-540-31880-4_44

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Citations (7)

Optical fibre design using evolutionary strategies

Engineering Computations (2004)

Steven Manos L. Poladian

The design of optical fibres for applications where many performance targets have to be met simultaneously is a non‐trivial process. An evolutionary strategy (ES) combined with an algorithm to model the appropriate fibre parameters was used to design an optical fibre suitable for long haul high bandwidth communications. The ES code was developed using an object oriented approach and a parallel version was also incorporated. This allowed for the rapid implementation and subsequent design of fibres with properties of interest. Design constraints arising from the fibre manufacturing process were incorporated.

Code (set theory)

Subwavelength-diameter optical fibre

10.1108/02644400410545164

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Future directions for microstructured polymer optical fibers

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2004)

Maryanne C. J. Large Alexander Argyros G.W. Barton Felicity Cox Geoffrey Henry

Microstructured Polymer Optical Fibers (MPOF) were first made in 2001, and subsequent development has aimed at exploiting the material and design opportunities they present. Most effort has been focused on developing approaches for high bandwidth MPOF, and investigating the properties of multimode microstructured fibers. We also consider new applications in endoscopy and photonic interconnects, as well as the use of organic dopants in MPOF.

Microstructured optical fiber

10.1117/12.531138

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Novel fibre Bragg grating design using multiobjective evolutionary algorithms

Conference on Lasers and Electro-Optics (2004)

Steven Manos L. Poladian Brian Ashton

A multiobjective evolutionary algorithm was used to design a FBG for optical clock signal extraction, yielding a population of filters that are optimal with respect to three or four different spectral criteria.

Fiber Bragg Grating

SIGNAL (programming language)

Algorithm design

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Citations (1)

Novel Fibre Bragg Grating design using multiobjective evolutionary algorithms

Steven Manos L. Poladian

A multiobjective evolutionary optimisation algorithm is applied to a fibre Bragg grating (optical filter) design problem. The design specified a dual wavelength filter with four required spectral characteristics - total bandwidth, peak separation, peak width and minimum transmission. Five parameters which described the apodised grating profile were used to define the search space and the transfer matrix method was used to numerically evaluate the transmission spectrum of candidate solutions. Various constraints on the search space were included in the design algorithm. Two separate selection schemes were tested, a distance based approach as used in the nondominated sorting genetic algorithm (NSGA-II) and a conglomerative clustering approach as used in the strength Pareto evolutionary algorithm (SPEA). Nondominated solutions are found and it is evident that particular objectives can be achieved more easily than others. Preliminary results are discussed and future work is introduced.

Fiber Bragg Grating

10.1109/cec.2003.1299930

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Seeing the Big Picture: A Digital Desktop for Researchers

Bernard Meade Christopher J. Fluke Richard Sinnott Steven Manos N. E. B. Killeen

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MICROSTRUCTURED POLYMER OPTICAL FIBRES: A NEW APPROACH TO POFS.

Maryanne C. J. Large Alexander Argyros Steven Manos Nader A. Issa I.M. Bassett

One of the major problems in fabricating polymer optical fibres is the difficulty in attaining a refractive index profile of choice, which requires careful control of the chemical composition. In addition, the use of dopants to modify the refractive index means that diffusion may be a problem. In this paper we describe a new approach to resolving these issues, which has many additional benefits. We have fabricated the first microstructured polymer optical fibres (MPOFs), in which the effective refractive index of the fibre is determined by the size and spacing of small holes, which run the length of the fibre. Both single mode and multimode fibres have been made from a single material (PMMA) without the use of dopants. These fibres have been tested and modeled. It is possible to use this approach to fabricate a variety of refractive index profiles.

Refractive index profile

All-silica fiber

Subwavelength-diameter optical fibre

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Citations (6)