Search Results - "Ottaway, David J."

Two-photon absorption and saturable absorption of mid-IR in graphene by Malouf, Andrew, Henderson-Sapir, Ori, Set, Sze, Yamashita, Shinji, Ottaway, David J.

“…We report on the response of graphene to high intensity mid-IR radiation and show that graphene exhibits saturable absorption and significant two-photon…”
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Impact of upconverted scattered light on advanced interferometric gravitational wave detectors by Ottaway, David J, Fritschel, Peter, Waldman, Samuel J

“…Second generation gravitational wave detectors are being installed in a number of locations globally. These long-baseline, Michelson interferometers increase…”
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Mitigating stimulated Brillouin scattering in multimode fibers with focused output via wavefront shaping by Chen, Chun-Wei, Nguyen, Linh V., Wisal, Kabish, Wei, Shuen, Warren-Smith, Stephen C., Henderson-Sapir, Ori, Schartner, Erik P., Ahmadi, Peyman, Ebendorff-Heidepriem, Heike, Stone, A. Douglas, Ottaway, David J., Cao, Hui

“…The key challenge for high-power delivery through optical fibers is overcoming nonlinear optical effects. To keep a smooth output beam, most techniques for…”
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Short-pulse actively Q-switched Er:YAG lasers by Ottaway, David J, Harris, Lachlan, Veitch, Peter J

“…We report the shortest duration pulses obtained to date from an actively Q-switched Er:YAG laser pumped by a low spectral and spatial brightness laser diode…”
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New energy-transfer upconversion process in Er 3+ :ZBLAN mid-infrared fiber lasers by Henderson-Sapir, Ori, Munch, Jesper, Ottaway, David J

“…We report a new energy-transfer process in erbium doped ZBLAN glass, which is critical for optimizing the operation of lasers that use the 3.5 μm band F to I…”
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Australian Lidar Measurements of Aerosol Layers Associated with the 2015 Calbuco Eruption by Klekociuk, Andrew R., Ottaway, David J., MacKinnon, Andrew D., Reid, Iain M., Twigger, Liam V., Alexander, Simon P.

“…The Calbuco volcano in southern Chile (41.3° S, 72.6° W) underwent three separate eruptions on 22–23 April 2015. Following the eruptions, distinct layers of…”
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New energy-transfer upconversion process in Er3+:ZBLAN mid-infrared fiber lasers by Henderson-Sapir, Ori, Munch, Jesper, Ottaway, David J

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Optical lock-in camera for gravitational wave detectors by Cao, Huy Tuong, Brown, Daniel D, Veitch, Peter J, Ottaway, David J

“…Knowledge of the intensity and phase profiles of spectral components in a coherent optical field is critical for a wide range of high-precision optical…”
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Machine learning for sensing with a multimode exposed core fiber specklegram sensor by Smith, Darcy L, Nguyen, Linh V, Ottaway, David J, Cabral, Thiago D, Fujiwara, Eric, Cordeiro, Cristiano M B, Warren-Smith, Stephen C

“…Fiber specklegram sensors (FSSs) traditionally use statistical methods to analyze specklegrams obtained from fibers for sensing purposes, but can suffer from…”
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Air-Clad Holmium-Doped Silica Fiber Laser by Ng, Sebastian W. S., Lancaster, David G., Monro, Tanya M., Henry, Peter C., Ottaway, David J.

“…We report the design, fabrication, and operation of an air-clad holmium-doped fiber laser that was manufactured by directly milling the rare-earth-doped…”
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3.5 µm Fiber Lasers by Ottaway, David J., Henderson-Sapir, Ori

“…The introduction of dual wavelength pumping nearly a decade ago has made the 3.5 µm transition in erbium doped fluoride glasses viable. This has enabled a host…”
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Frequency-Shifted Feedback Mode-Locked and Tunable 3.5 µm Fiber Laser and Bragg Grating Interrogator by Henderson-Sapir, Ori, Bawden, Nathaniel, Theodosiou, Antreas, Majewski, Matthew R., Kalli, Kyriacos, Jackson, Stuart D., Ottaway, David J.

“…A mode-locked, dual-wavelength pumped 3.5 µm fiber laser using frequencyshifted feedback is reported. Pulses of 3.8 ps with 8.7 nJ were obtained. An…”
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Mode-Locked and Tunable 3.5 $\mu$m Fiber Laser Using an Acousto-Optic Modulator by Henderson-Sapir, Ori, Bawden, Nathaniel, Theodosiou, Antreas, Majewski, Matthew R., Kalli, Kyriacos, Jackson, Stuart D., Ottaway, David J.

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Recent Advances in 3.5 μm Erbium-Doped Mid-Infrared Fiber Lasers by Henderson-Sapir, Ori, Malouf, Andrew, Bawden, Nathaniel, Munch, Jesper, Jackson, Stuart D., Ottaway, David J.

“…The performance of mid-infrared Er 3+ -doped fiber lasers has dramatically improved in the last few years. In this paper, we present an overview of the…”
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Mid-Infrared Er3+:ZBLAN Waveguide Using ZBLAN Glass Extrusion, Femto-Second Inscription and Dual-Wavelength Pumping for the Generation of 3.5 µm Lasing by Henderson-Sapir, Ori, Fashola, Saheed Oladipupo, Bawden, Nathaniel, Dowler, Alastair, Ng, Alson, Ottaway, David J., Fuerbach, Alex, Ebendorf-Heidepriem, Heike

“…We present our work towards a 3.5 µm Er 3+ :ZBLAN femto-second laser inscribed waveguide laser. The waveguide was made by extruding bulk ZBLAN glass into a…”
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Mode-Locked and Tunable 3.5 \mum Fiber Laser Using an Acousto-Optic Modulator by Henderson-Sapir, Ori, Bawden, Nathaniel, Theodosiou, Antreas, Majewski, Matthew R., Kalli, Kyriacos, Jackson, Stuart D., Ottaway, David J.

“…A mode-locked, dual-wavelength pumped 3.5 <inline-formula><tex-math notation="LaTeX">\mu</tex-math></inline-formula>m fiber laser using frequency shifted…”
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Mode-Locked and Tunable 3.5 [Formula Omitted]m Fiber Laser Using an Acousto-Optic Modulator by Henderson-Sapir, Ori, Bawden, Nathaniel, Theodosiou, Antreas, Majewski, Matthew R, Kalli, Kyriacos, Jackson, Stuart D, Ottaway, David J

“…A mode-locked, dual-wavelength pumped 3.5 [Formula Omitted]m fiber laser using frequency shifted feedback utilizing an acousto-optic modulator is reported…”
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High sensitivity measurement of thermal distortion in low-loss optical materials by Ingram, Craig, Ng, Sebastian W. S., Cao, Huy Tuong, Gambell, Adam, Simakov, Nikita, Brown, Daniel D., Ottaway, David J., Hemming, Alexander, Veitch, Peter J.

“…We describe a method for the measurement of surface and bulk absorption in low-loss optical materials. The measurement of bulk absorption at 2um in low-OH…”
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Q-switched and Mode-locked 3.5 µm Fiber Laser by Bawden, Nathaniel, Henderson-Sapir, Ori, Majewski, Matthew R., Woodward, Robert I., Jackson, Stuart D., Ottaway, David J.

“…We report on a tunable mid-infrared erbium fiber laser mode-locked via frequency shifted-feedback provided by an acousto-optic tunable filter. Q-switched…”
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Evaluation of the signal quality of an inexpensive CMOS camera towards imaging a high-resolution plastic scintillation detector array by Jennings, Matthew W., Rutten, Thomas P., Ottaway, David J.

“…Several promising scintillation dosimetry systems have recently emerged that extend measurements of absorbed dose distributions to three dimensions. We have…”
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