Numerical analysis of pulse pedestal and dynamic chirp formation on picosecond modelocked laser pulses after propagation through a semiconductor optical amplifier [PDF]
, 2005 A numerical analysis, based on a modified Schrodinger equation, of the formation of pulse pedestals and dynamic chirp formation on picosecond pulses after propagation through a semiconductor optical amplifier is presented.
Anandarajah, Prince M. +7 more
core +1 more source
The Complex Way to Laser Diode Spectra: Example of an External Cavity Laser With Strong Optical Feedback [PDF]
, 2005 An external cavity laser with strong grating-filtered feedback to an antireflection-coated facet is studied with a time-domain integral equation for the electric field, which reproduces the modes of the oscillation condition as steady-state solutions ...
B. TROMBORG +4 more
core +1 more source
Bifurcation analysis of a semiconductor laser with filtered optical feedback
, 2006 We study the dynamics and bifurcations of a semiconductor laser with delayed filtered feedback, where a part of the output of the laser re-enters after spectral filtering.
Erzgraeber, H. +9 more
core +1 more source
Polarization resolved four-wave-mixing-based measurement in bulk material semiconductor optical amplifier [PDF]
, 2006 The anticipated growth in demand for bandwidth leads to the development of all-optical signal processing techniques at ever increasing data rates. One possible candidate to achieve the required performance is the semiconductor optical amplifier (SOA). It
S. Philippe +9 more
core +1 more source
Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
Scientific Reports, 2017 The effects of optical feedback (OF) in lasers have been observed since the early days of laser development. While OF can result in undesirable and unpredictable operation in laser systems, it can also cause measurable perturbations to the operating ...
James Keeley +11 more
doaj +1 more source
Pulsed exposure mode of the 445 nm semiconductor laser in phonosurgery: an experimental study
Biomedical Photonics, 2023 The study presents the results of an experimental study devoted to the choice of the most optimal mode of pulsed contact laser exposure of semiconductor laser with a wavelength of 445 nm in phonosurgery, which implies maximum preservation of anatomically
M. A. Ryabova +4 more
doaj +1 more source
Experimental analysis of four-wave mixing in a semiconductor optical amplifier using frequency resolved optical gating [PDF]
, 2007 Four-wave mixing was performed in a multi-quantum well semiconductor optical amplifier in order to demultiplex 2 ps pulses from 80 GHz to 10 GHz. The demultiplexed pulses were measured using frequency resolved optical gating.
Barry, Liam P. +8 more
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Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry
Advanced Functional Materials, EarlyView.In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite +5 more
wiley +1 more source
The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite
Nanomaterials, 2021 We performed the investigation of the polarization-sensitive photocurrent generated in silver-palladium metal-semiconductor nanocomposite films under irradiation with nanosecond laser pulses at the wavelength of 2600 nm.
Aleksandr S. Saushin +3 more
doaj +1 more source
Discrete mode laser diodes with very narrow linewidth emission [PDF]
, 2007 Ex-facet, free-running low linewidth (~100 kHz), single mode laser emission is demonstrated using low cost, regrowth-free ridge waveguide Discrete Mode Fabry Pérot laser diode chips.
Kelly, Brian +15 more
core +1 more source