Zobrazeno 1 - 10
of 57
pro vyhledávání: '"D. J. Richardson"'
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023.
We report a bismuth-doped fiber amplifier operating in the E+S-band providing a 20.5±1dB flat gain with 5.5±2dB NF from 1435-1475nm for -10dBm input signal. The gain coefficient and temperature-dependent-gain coefficient are 0.065dB/mW and -0.005±
Publikováno v:
EMBC
Combat veterans; especially those with mental health conditions are an at risk group for suicidal ideation and behaviour. This study attempts to use machine learning algorithm to predict suicidal ideation (SI) in a treatment seeking veteran populatio
Publikováno v:
Optics express. 26(2)
Four 3rd order fiber Bragg gratings were inscribed into separate cores of a 7 core multi-core fiber using the point-by-point inscription technique. A 1030 nm, 206 ± 5 fs laser was used, operating at a frequency of 1 kHz and pulse energy of 2.1 ± 0.
Autor:
C, Lacava, I, Cardea, I, Demirtzioglou, A E, Khoja, Li, Ke, D J, Thomson, X, Ruan, F, Zhang, G T, Reed, D J, Richardson, P, Petropoulos
Publikováno v:
Optics express. 25(24)
We present the characterization of a silicon Mach-Zehnder modulator with electrical packaging and show that it exhibits a large third-order intermodulation spurious-free dynamic range (100 dB Hz
Autor:
N V, Wheeler, T D, Bradley, J R, Hayes, M A, Gouveia, S, Liang, Y, Chen, S R, Sandoghchi, S M, Abokhamis Mousavi, F, Poletti, M N, Petrovich, D J, Richardson
Publikováno v:
Optics letters. 42(13)
We report the fabrication and characterization of Kagome hollow-core antiresonant fibers, which combine low attenuation (as measured at ∼30 cm bend diameter) with a wide operating bandwidth and high modal purity. Record low attenuation values are r
Autor:
R. Slavik, E. Numkam Fokoua, M. N. Petrovich, N. V. Wheeler, T. Bradley, F. Poletti, D. J. Richardson
Publikováno v:
2017 European Conference on Optical Communication (ECOC).
Autor:
D, Lin, N, Baktash, M, Berendt, M, Beresna, P G, Kazansky, W A, Clarkson, S U, Alam, D J, Richardson
Publikováno v:
Optics letters. 42(9)
We report an Yb-doped fiber master-oscillator power-amplifier (MOPA) system with the capability of selectively generating doughnut-shaped radially and azimuthally polarized beams with user-defined temporal pulse shapes. The desired output polarizatio
Publikováno v:
Optics express. 25(1)
A high-pulse-energy, diffraction-limited, wavelength-selectable, visible source, based on Raman frequency shifting of a frequency-doubled Yb-doped fiber laser, has been studied. The relative length-scaling laws of Raman gain and self-phase modulation
Autor:
J, Torregrosa-Crespo, R M, Martínez-Espinosa, J, Esclapez, V, Bautista, C, Pire, M, Camacho, D J, Richardson, M J, Bonete
Publikováno v:
Advances in microbial physiology. 68
A number of species of Haloferax genus (halophilic archaea) are able to grow microaerobically or even anaerobically using different alternative electron acceptors such as fumarate, nitrate, chlorate, dimethyl sulphoxide, sulphide and/or trimethylamin
Publikováno v:
Advances in microbial physiology. 68
Nitrous oxide (N2O) is an important greenhouse gas (GHG) with substantial global warming potential and also contributes to ozone depletion through photochemical nitric oxide (NO) production in the stratosphere. The negative effects of N2O on climate