Browsing by Subject "Semiconductor optical amplifiers"
Now showing items 1-7 of 7
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3.8 dB Noise figure in bulk semiconductor optical amplifier
(2013)The present paper reports numerical and experimental investigation of noise figure of a multi-section semiconductor optical amplifier. The designed amplifier shows a 3.8dB noise figure, which seems to be the lowest figure ... -
Characterization of a multi-electrode bulk-SOA for low NF in-line amplification in passive optical networks
(2010)A bulk semiconductor optical amplifier (SOA) utilizing a multi-contact biasing method is characterized as a function of the bias current supplied to each section Firstly, amplified spontaneous emission spectra and ... -
Investigation of optimum wavelength converter based on nonlinear polarization rotation in a bulk SOA
(2007)This work is focused on understanding and optimising the physical mechanisms responsible for wavelength conversion based on cross-polarisation modulation (XPolM) in a bulk semiconductor optical amplifier. A comparison is ... -
Investigation of polarization dependent gain in a bulk SOA
(2007)The polarization dependence of the gain dynamics in a bulk semiconductor optical amplifier is examined using two experimental setups. The first experimental investigation is based on four-wave mixing. Using a low-pass ... -
Method to improve the noise figure and saturation power in multi-contact semiconductor optical amplifiers: simulation and experiment
(2013)The consequences of tailoring the longitudinal carrier density along the active layer of a multi-contact bulk semiconductor optical amplifier (SOA) are investigated using a rate equation model. It is shown that both the ... -
Noise controlled semiconductor optical amplifier based on lateral cavity laser
(2010)Experimental characterisation of a novel noise-controlled semiconductor optical amplifier (NCSOA) is presented. The design utilises grooves etched parallel to the active waveguide, at the output sections of the NCSOA, so ... -
Novel design for noise controlled semiconductor optical amplifier
(2009)The use of semiconductor optical amplifiers (SOA) in optical communications networks has so far been limited due to their inherent large noise figure (NF) compared to Erbium Doped Fibre Amplifiers. Therefore improvement ...