ORCID Profile
0000-0002-4092-6970
Current Organisation
Microsoft
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Optical Physics | Photonics, Optoelectronics and Optical Communications
Expanding Knowledge in the Physical Sciences | Scientific Instruments | Expanding Knowledge in Engineering |
Publisher: Institution of Engineering and Technology (IET)
Date: 2002
DOI: 10.1049/EL:20020421
Publisher: Optica Publishing Group
Date: 09-2002
Publisher: Institution of Engineering and Technology (IET)
Date: 1999
DOI: 10.1049/EL:19990780
Publisher: Institution of Engineering and Technology (IET)
Date: 2000
DOI: 10.1049/EL:20001394
Publisher: IEEE
Date: 08-2011
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2003
Publisher: The Optical Society
Date: 05-05-2016
DOI: 10.1364/OL.41.002197
Publisher: IOP Publishing
Date: 04-05-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2003
Publisher: OSA
Date: 2013
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2000
DOI: 10.1109/50.818906
Publisher: OSA
Date: 2017
Publisher: Springer Science and Business Media LLC
Date: 16-07-2022
DOI: 10.1038/S41467-022-31884-2
Abstract: Today’s optical communication systems are fast approaching their capacity limits in the conventional telecom bands. Opening up new wavelength bands is becoming an appealing solution to the capacity crunch. However, this ordinarily requires the development of optical transceivers for any new wavelength band, which is time-consuming and expensive. Here, we present an on-chip continuous spectral translation method that leverages existing commercial transceivers to unlock the vast and currently unused potential new wavelength bands. The spectral translators are continuous-wave laser pumped aluminum gallium arsenide on insulator (AlGaAsOI) nanowaveguides that provide a continuous conversion bandwidth over an octave. We demonstrate coherent transmission in the 2-μm band using well-developed conventional C-band transmitters and coherent receivers, as an ex le of the potential of the spectral translators that could also unlock communications at other wavelength bands. We demonstrate 318.25-Gbit s −1 Nyquist wavelength- ision multiplexed coherent transmission over a 1.15-km hollow-core fibre using this approach. Our demonstration paves the way for transmitting, detecting, and processing signals at wavelength bands beyond the capability of today’s devices.
Publisher: Optica Publishing Group
Date: 2004
Abstract: We demonstrate an optical lifier based on an erbium doped holey fiber (EDHF) with a small core. Owing to the high NA, which is readily achievable using holey fiber technology, and the tight physical confinement of the erbium ions, we show that it is possible to achieve an internal gain efficiency of >8.5dB/mW using an aluminosilicate based glass within the core. The dependence of the gain and noise figure performance with respect to fiber length and wavelength are experimentally characterized.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2005
Publisher: IEEE
Date: 09-2015
Publisher: Springer Science and Business Media LLC
Date: 10-08-2020
DOI: 10.1038/S41467-020-17809-X
Abstract: Structured light, with spatially varying phase or polarization distributions, has given rise to many novel applications in fields ranging from optical communication to laser-based material processing. However the efficient and flexible generation of such beams from a compact laser source at practical output powers still remains a great challenge. Here we describe an approach capable of addressing this need based on the coherent combination of multiple tailored Gaussian beams emitted from a multicore fibre (MCF) lifier. We report a proof-of-concept structured light generation experiment, using a cladding-pumped 7-core MCF lifier as an integrated parallel lifier array and a spatial light modulator (SLM) to actively control the litude, polarization and phase of the signal light input to each fibre core. We report the successful generation of various structured light beams including high-order linearly polarized spatial fibre modes, cylindrical vector (CV) beams and helical phase front optical vortex (OV) beams.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 06-1999
DOI: 10.1109/50.769313
Publisher: Optica Publishing Group
Date: 2006
DOI: 10.1364/OE.14.010345
Abstract: We report the fabrication of a highly multi-mode square core jacketed air-clad fiber with a top-hat near-field intensity profile. Using this fiber to deliver Q-switched pulses at 1 mum we have successfully produced square shaped ablation marks in indium tin oxide (ITO) without the use of complex beam shaping optics.
Publisher: Springer Science and Business Media LLC
Date: 16-07-2003
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2022
Publisher: Optica Publishing Group
Date: 09-08-2006
DOI: 10.1364/OL.31.002541
Abstract: We report the results of detailed measurements on the Brillouin frequency shift (BFS), gain bandwidth, and gain coefficients of several small-core holey optical fibers (HFs) of both uniform and axially varying structural characteristics and compare these with measurements on more conventional fibers. Our measurements show that the BFS of HFs is first-order proportional to the modal index for light propagating along the fiber and is thus extremely sensitive to its precise structural parameters. Our results highlight the possibility of using distributed Brillouin scattering measurements to perform nondestructive structural characterization of HFs, and the possibility of producing Brillouin-suppressed HFs using controlled structural variation along the fiber length.
Publisher: OSA
Date: 2015
Publisher: Canadian Science Publishing
Date: 04-2010
DOI: 10.1139/T09-112
Abstract: Centrifuge model tests were conducted to examine foundation failure mechanisms during rapid horizontal pushover of an electricity transmission line support tower, simulating a broken transmission line response or wind gust loading. A model transmission tower supported on four pad foundations in clay and backfilled with sand was loaded horizontally and the loads at each foundation were measured during fast and slow pushover. The tests examined the influence of tensile resistance mobilized at the underside of the footings, which is difficult to reliably incorporate within design practice due to a lack of accepted quantitative design methods. The measured performance of the tower footings was compared with results from a series of tests where a single footing is subjected to purely vertical loading in compression and tension and was found to be in good agreement. The tower response was back-analysed as a simple push–pull model and the calculated uplift capacity of the footing backfill provided a close match to the observed response of the tower footings subjected to slow pushover. During fast pushover, the additional capacity mobilized due to tensile resistance (suction) created by the reverse bearing capacity beneath the base of the footings subjected to uplift was quantified using a suction capacity factor.
Publisher: IEEE
Date: 07-2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 09-2001
DOI: 10.1109/68.942667
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 06-2002
Publisher: Springer Science and Business Media LLC
Date: 07-07-2022
DOI: 10.1038/S41377-022-00908-3
Abstract: There are a host of applications in communications, sensing, and science, in which analogue signal transmission is preferred over today’s dominant digital transmission. In some of these applications, the advantage is in lower cost, while in others, it lies in superior performance. However, especially for longer analogue photonics links (up to 10 s of km), the performance is strongly limited by the impairments arising from using standard single-mode fibres (SSMF). Firstly, the three key metrics of analogue links (loss, noise figure, and dynamic range) tend to improve with received power, but this is limited by stimulated Brillouin scattering in SSMF. Further degradation is due to the chromatic dispersion of SSMF, which induces radio-frequency (RF) signal fading, increases even-order distortions, and causes phase-to-intensity-noise conversion. Further distortions still, are caused by the Kerr nonlinearity of SSMF. We propose to address all of these shortcomings by replacing SSMFs with hollow-core optical fibres, which have simultaneously six times lower chromatic dispersion and several orders of magnitude lower nonlinearity (Brillouin, Kerr). We demonstrate the advantages in this application using a 7.7 km long hollow-core fibre s le, significantly surpassing the performance of an SSMF link in virtually every metric, including 15 dB higher link gain and 6 dB lower noise figure.
Publisher: The Optical Society
Date: 13-11-2014
DOI: 10.1364/OE.22.029008
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-04-2016
Publisher: Institution of Engineering and Technology (IET)
Date: 2001
DOI: 10.1049/EL:20010402
Publisher: OSA
Date: 2016
Publisher: IEEE
Date: 2001
Publisher: SPIE
Date: 22-04-2005
DOI: 10.1117/12.602600
Publisher: Opt. Soc. America
Date: 2001
Publisher: SPIE
Date: 14-06-2004
DOI: 10.1117/12.537375
Publisher: The Optical Society
Date: 31-10-2018
DOI: 10.1364/OE.26.030042
Publisher: OSA
Date: 2013
Publisher: Institution of Engineering and Technology (IET)
Date: 2001
DOI: 10.1049/EL:20010089
Publisher: IEEE
Date: 09-2014
Publisher: OSA
Date: 2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-04-2021
Publisher: Optica Publishing Group
Date: 2004
Abstract: We report the fabrication of the first spun holey optical fibre. Our experiments show that the complex air/glass transverse structure can be retained when the preform is spun during the fibre drawing process. Measurements of differential group delay (DGD) confirm that significant reductions in polarization mode dispersion (PMD) can be readily achieved using this approach.
Publisher: IOP Publishing
Date: 08-06-2001
Publisher: Elsevier BV
Date: 05-2000
Publisher: IEEE
Date: 2003
Publisher: Elsevier BV
Date: 10-2004
Publisher: IEEE
Date: 07-2014
DOI: 10.1109/SUM.2014.85
Publisher: The Optical Society
Date: 24-04-2014
DOI: 10.1364/OE.22.010544
Publisher: Optica Publishing Group
Date: 2005
Abstract: We present the results of numerical simulations of the modal properties of Photonic Band Gap Fibers (PBGFs) in which a structural distortion of the silica ring surrounding the air core is gradually introduced. We demonstrate that surface modes supported within such fibers are very sensitive to structural distortions, and that any asymmetric change in the structure can break their degeneracy resulting in associated changes in the anticrossing behavior of the orthogonally polarized core modes, and the development of polarization dependent transmission properties. Our results provide insight into recent experimental observations of wavelength dependent PDL and birefringence in PBGFs.
Publisher: Institution of Engineering and Technology (IET)
Date: 2000
DOI: 10.1049/EL:20001446
Publisher: Cellule MathDoc/CEDRAM
Date: 2003
Publisher: IEE
Date: 2005
DOI: 10.1049/CP:20050869
Publisher: OSA
Date: 2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 12-2003
Publisher: Elsevier BV
Date: 05-2010
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Start Date: 03-2017
End Date: 12-2020
Amount: $477,500.00
Funder: Australian Research Council
View Funded Activity