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Date: 2013
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/285817
Description: Optical coherence tomography is a method of optical signal acquisition and processing based upon interferometry, where scattering from the media of interest produces micrometer-resolution 3D images. O ... More
Reviewed: Reviewed
Date: 2012
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/218309
Description: We report an all-optical, actively Q-switched, all-fibre laser utilizing an ultrafast laser-inscribed, wavelength-tunable, apodized fibre Bragg grating. The tailored spectrum of the apodized point-by- ... More
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Date: 2012
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/199534
Description: We demonstrate a mode filter by inducing a short distance refractive index increase around the fiber core. The guidance of the fiber is modified and higher order modes can be suppressed.
Reviewed: Reviewed
Date: 2012
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/198404
Description: High contrast imaging techniques such as aperture masking interferometry allow for the detection of faint companions such as substellar companions by utilizing light from the planet itself. This allow ... More
Reviewed: Reviewed
Date: 2012
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/198407
Description: The Integrated Photonic Spectrograph (IPS) is a complete spectrograph within a single silica photonic chip, that has no moving parts, is highly resistant to stress and temperature induced flexure and ... More
Reviewed: Reviewed
Date: 2012
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/214682
Description: We characterize a three dimensional three port beamsplitter device using two photons, the first example of this device in integrated photonics. We observe a Hong-Ou-Mandel dip between output ports sho ... More
Reviewed: Reviewed
Date: 2011
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/169565
Description: We demonstrate direct laser written low loss waveguides in bismuth germanate for sensing applications in high energy physics. We discuss the suitability of waveguide arrays in this material for spatia ... More
Reviewed: Reviewed
Date: 2011
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/144858
Description: We present apodised Bragg waveguides inscribed in fused silica using a high repetition rate fs laser system. By varying the modulation with a pulse picker, the mean refractive index over the grating l ... More
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Reviewed: Reviewed
Date: 2011
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/169437
Description: We present coupled-mode-theory modeling of apodized fiber Bragg gratings inscribed using a point-by-point technique. We show that the local detuning in these gratings is almost constant, due to the mo ... More
Reviewed: Reviewed
Date: 2011
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/169430
Description: Photonic devices for quantum logic will require tight control over their birefringent properties. In this study we seek to better understand the influence of birefringence in coupled waveguide systems ... More
Reviewed: Reviewed
Date: 2011
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/169593
Description: We report a dual-wavelength (DW) distributed feedback (DFB) waveguide laser based on a symmetric periodically sampled grating fabricated in Yb-doped phosphate glass, using the femtosecond laser direct ... More
Reviewed: Reviewed
Date: 2010
Subject Keyword: 020500 Optical Physics
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/147695
Description: We report on direct inscription of type-II waveguides in bulk titanium-doped sapphire with an ultrafast chirpedpulse oscillator. Ti³⁺:Sapphire is of particular interest due to its large emission bandw ... More
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Reviewed: Reviewed
Date: 2010
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/147702
Description: In this publication we present the results of a detailed study into directly written multimode waveguides for astronomical applications. We show that waveguides up to 100 m across can be inscribed wit ... More
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Reviewed: Reviewed
Date: 2010
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/164966
Description: Femtosecond laser ablation of gold in an aqueous solution of biologically compatible surfactant cetyl trimethylammonium bromide (CTAB) is shown to produce small nanoparticles with a narrow size distri ... More
Reviewed: Reviewed
Date: 2010
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/147786
Description: Focussing ultrashort laser pulses allows for inscribing fiber Bragg gratings (FBGs) directly into rare earth doped fiber cores - without prior photosensitivity treatment. High reflective FBGs can be w ... More
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Reviewed: Reviewed