quantum-well vertical cavity lasers
Investigating Scaling Effects on The Static Characteristics of Long-Wavelength Vertical Cavity Lasers (VCSELs)
... large diameters of 5-7 µm because longer wavelengths enable the transverse mode and polarization control easier. Also, this corresponds to the minimum dispersion and minimum loss in standard glass fiber at 1.3 µm and ...
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Vertical external cavity semiconductor lasers
... a quantum well SESAM structure, the saturation fluence is an order of magnitude ...long cavity, with repetition rate of 328 MHz, in which the absorber had time to recover within the round trip ...of ...
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Controlled propagation of spiking dynamics in vertical-cavity surface-emitting lasers : towards neuromorphic photonic networks
... semiconductor lasers (SLs) have clearly dominated [12,16] given the potentials of these devices for application in information processing [15-22], optical interconnects [23] and communication networks ...and ...
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Dynamics of a vertical cavity quantum cascade phonon laser structure
... high-Q cavity mode 13 and acoustic spectral line narrowing 4 ...In lasers this is achieved for light by increasing the effective path length in the gain medium by placing it within an optical cavity, ...
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Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser
... surface-emitting lasers (VECSELs) have been demonstrated to produce high continuous wave (CW) average output powers with excellent beam quality ...multiple quantum well (MQW) based semiconductor ...
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Dynamic modelling of electrooptically modulated vertical compound cavity surface emitting semiconductor lasers
... the cavity as an alternative to current modulation; see ...semiconductor lasers involving direct modulation of the photon lifetime promise better dynamic properties than lasers with current ...
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Structural Analysis of InGaAs Based Vertical Cavity Surface-Emitting Quantum Well Laser
... VCSELs have a number of advantages over conventional edge emitting lasers. Simpler in processing, emission in a single longitudinal mode naturally, lower divergence, and preparation in the form of large and planar ...
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Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy
... The Proton VCSEL structure consists of two DBR mirrors (one on top and one on bottom, a region of proton damage, active region. The proton bombarded layer provides good current confinement but little or no optical ...
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Electrically-controlled neuron-like spiking regimes in vertical-cavity surface-emitting lasers at ultrafast rates
... fibre lasers [10,11], semiconductor optical amplifiers (SOAs) [12,13], optical modulators [14,15] and semiconductor lasers (SLs) ...micro-disk lasers [16], micro-pillar lasers [17-19] and ...
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Spontaneous formation of vector vortex beams in vertical-cavity surface-emitting lasers with feedback
... Beams with a spatially non-uniform polarization distri- bution attracted a rapidly growing interest over the last years due to a combination of intrinsic appeal and beauty, novel fundamental aspects in quantum ...
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Dynamics importance sampling for the collection of switching events in vertical cavity surface emitting lasers
... [14] S. Beri, R. Mannella, and P. V. E. McClintock, Dynamics importance sampling for the activation problem in nonequilibrium continuous systems and maps in Noise in Complex Systems and Stochastic Dynamics II, edited by ...
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Optical Gain and Confinement in Gaas/Algaas Structure Quantum Well Lasers
... multiple quantum wells as active region will provokes the optical gain expansion as the maximum gain get on higher standard according to the quantum well structures wells ...
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Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback
... For large initial detuning (low temperatures in the experiment), high-order solitons (vortex solitons in the 2D experiment, closely packed multi-humped structures in the 1D simulations) can appear as the first structure ...
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Gain optimization in optically pumped AlGaAs unipolar quantum-well lasers
... in quantum wells (QWs) by Kazarinov and Suris in 1971 [1], there has been considerable research effort in this ...unipolar lasers have been proposed, and some of them realized, the most important of which ...
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Quantum dot micropillar lasers subject to coherent time delayed optical feedback from a short external cavity
... power-current and spectral characteristics. Firstly, we present the effects of delayed optical feedback from a short cavity on the input-output characteristics and the optical spectrum of a QD micropillar laser. ...
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Population inversion in optically pumped asymmetric quantum well terahertz lasers
... The energy levels in both three- and four-level asymmet- ric quantum well devices were obtained by numerical solu- tion of the effective mass Schro¨dinger equation. 8 The nu- merical wave functions were ...
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Theory of terahertz intervalence band polaritons and antipolaritons
... THz quantum cas cade lasers are attracting major research interest due to their great importance in applications such as THz imaging, spectroscopy as well as in security control for de tection of ...
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Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser
... sorption length of the barrier turns the number of QWs into a critical design parameter. Too few wells will result in a significant fraction of the expensive 700 nm pump light being transmitted through to and absorbed in ...
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Design of linear and star shaped macromolecular organic semiconductors for photonic applications
... In our work with BBEHP-PPV, 38 the thresholds (770 W/cm 2 ) were low enough to be driven by commercially available LEDs, which typically have a maximum power output of 1 kW/cm 2 . While these achievements are highly ...
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Controllable spiking patterns in long-wavelength vertical cavity surface emitting lasers for neuromorphic photonics systems
... nm Vertical Cavity Surface Emitting Laser (VCSEL) in response to induced perturbations and for two different cases of polarized optical injection, namely parallel and ...
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