vertical-cavity surface lasers
Polarization dynamics in vertical-cavity surface emitting lasers
... longitudinal cavity resonance, the HF-mode will be favored, otherwise the ...the cavity resonance shift with quite different rates with temperature (about ...and cavity resonance are ...
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Physical insight into the polarization dynamics of semiconductor vertical-cavity lasers
... semiconductor vertical-cavity surface- emitting lasers ~ VCSELs ! is an interesting subject to ...these lasers to be indifferent to the polarization ...
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Analysis of spatial emission structures in vertical-cavity surface-emitting lasers with feedback from a volume Bragg grating
... If the current is increased, the inner part of the lasing aperture starts to lase also, but a certain preference for the perimeter remains (Fig. 3; upper image, right column). A blowup of a characteristic structure is ...
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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
... semiconductor lasers are attractive for high power applications but are limited by numerous instabilities leading to emission on many spatial modes and thus reducing the beam quality and ...edge-emitting ...
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Controllable spiking patterns in long-wavelength vertical cavity surface emitting lasers for neuromorphic photonics systems
... of freedom in comparison to traditional edge-emitting semiconductor lasers. Furthermore, our approach uses inexpensive devices operating at the important telecom wavelength of 1300 nm and therefore totally ...
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Polarization properties in the transition from below to above lasing threshold in broad-area vertical-cavity surface-emitting lasers
... the polarization direction for off-axis light is different below and above threshold but there is no detailed investigation. In this work, we characterize the polarization properties of off- axis below-threshold emission ...
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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 ...
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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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Delay-differential-equation modeling of mode-locked vertical-external-cavity surface-emitting lasers in different cavity configurations
... Time-delayed model We consider last an alternative, and so far hypothetic, case of the central chip being the SESAM, with the gain chip and the mirror m terminating the cavity, which is [r] ...
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High frequency continuous birefringence-induced oscillations in spin-polarized vertical-cavity surface-emitting lasers
... of vertical-cavity surface-emitting lasers (VCSELs) contain two dominant frequencies, namely (1) the relaxation os- cillation frequency which is related to the geometric mean of the electron ...
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Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser
... the cavity was adjusted to the positions of − ...barrier-pumped lasers is difficult because the gain material (emission wavelengths) and the wafer structure were ...
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Research on Photoelectric Characteristics of VCSEL
... many lasers, the Vertical Cavity Surface Emitting Laser (VCSEL) has attracted more attention for its characteristics of easy operation and low power ...
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Ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting laser devices
... spin vertical-cavity surface-emitting lasers (spin-VCSELs) have the potential even to outperform their conventional counterparts because of spin-specific advantages such as threshold reduction ...
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Spin induced gigahertz polarization oscillations in vertical-cavity surface-emitting laser devices
... Spin-controlled vertical-cavity surface-emitting lasers (VCSELs) have been intensively studied in recent years because of the low threshold feasibility and the nonlinearity above threshold, ...
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Structural Analysis of InGaAs Based Vertical Cavity Surface-Emitting Quantum Well Laser
... long-wavelength vertical- cavity surface-emitting lasers (LW-VCSELs) in order to realize reduced optical loss, as well as increasing current and optical ...
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Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser
... center lasers [11, ...increasing cavity length (shown in ...center lasers, where the separation between pulses increases for increasing cavity mismatch [14, ...dye lasers cannot be ...
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Investigating Scaling Effects on The Static Characteristics of Long-Wavelength Vertical Cavity Lasers (VCSELs)
... The vertical-cavity surface-emitting lasers (VCSELs) was proposed and fabricated in the late ...edge-emitting lasers (EEM), such as low threshold currents and small power ...
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Bistability conditions between lasing and non-lasing states for vertical-cavity surface-emitting lasers with frequency-selective optical feedback
... For the strongest achievable feedback (nominally 7%) and a suitable detuning condition, there is an abrupt switch-on, after some shoulder. The appearance of the shoulder can be interpreted in two ways: First, the ...
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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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Vertical cavity surface emitting lasers: Design, characterisation and integration
... The abive figure (4.2a) clearly shows the effect of the increased confinement factor in the PGS case (cavity c), demonstrated by an approximately three fold decrease in threshold gain (per QW) in going from a IQW ...
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