surface emitting lasers
Dynamics importance sampling for the collection of switching events in vertical cavity surface emitting lasers
... A numerical approach based on dynamic importance sampling (DIMS) is applied to in- vestigate polarization switches in vertical-cavity surface-emitting lasers. A polarization switch is described as an ...
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Polarization switches in vertical cavity surface emitting lasers
... Cavity Surface Emitting Lasers (VCSEL) are a novel class of semiconductor lasers which are having great success in many applications requiring high speed, precision and ...
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Analysis of spatial emission structures in vertical-cavity surface-emitting lasers with feedback from a volume Bragg grating
... We investigate the spatial and spectral properties of broad-area vertical-cavity surface-emitting lasers with frequency-selective feedback by a volume Bragg grating. We demonstrate wavelength locking ...
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High frequency continuous birefringence-induced oscillations in spin-polarized vertical-cavity surface-emitting lasers
... 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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Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback
... Abstract. A systematic experimental and numerical investigation of the conditions for the spontaneous formation of laser cavity solitons in broad-area vertical-cavity surface-emitting lasers with ...
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Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy
... edge emitting stripe geometry laser 16 become the standard semiconductor laser ...a surface emitting structure would better accomplish tasks such as coupling light into optical fiber and making ...
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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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Controlled propagation of spiking dynamics in vertical-cavity surface-emitting lasers : towards neuromorphic photonic networks
... Abstract—We report experimentally and in theory on the controllable propagation of spiking regimes between two interlinked Vertical-Cavity Surface-Emitting Lasers (VCSELs). We show that spiking ...
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Polarization dynamics in vertical-cavity surface emitting lasers
... Experiments and their interpretation on polarization dynamics and polarization switching in vertical-cavity surface-emitting lasers operated in the fundamental trans- verse mode regime are reviewed. ...
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Controllable spiking patterns in long-wavelength vertical cavity surface emitting lasers for neuromorphic photonics systems
... Amongst SLs, Vertical Cavity Surface Emitting Lasers (VCSELs) offer important advantages compared to in-plane devices, i.e. low costs, ease to integrate in 2D arrays, high coupling efficiency to ...
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Spontaneous formation of vector vortex beams in vertical-cavity surface-emitting lasers with feedback
... Hence, considerable effort was spent on creating these unusual polarization states [1], relying on a substantial engineering effort based on specialized equipment as tai- lored laser resonators [18, 19], meta-surfaces ...
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Electronic control of coherence in a two-dimensional array of photonic crystal surface emitting lasers
... shows the same image, but in this case, with the coupler in transparency (220 mA). The small increase in the coupler current to put the coupler into transparency results in the appearance of fringes, separated by 36 ± 4 ...
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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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Polarization properties in the transition from below to above lasing threshold in broad-area vertical-cavity surface-emitting lasers
... Far below threshold the polarization is independent from the cavity structure and the p wave of the DBRs which has the polarization direction parallel to k⊥ prevails in the emission bec[r] ...
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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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Vertical-Cavity Surface-Emitting Lasers for Ultra-High Speed Photonics
... vertical‐cavity surface‐emitting laser (VCSEL) with a transverse‐coupled‐ cavity (TCC) for a larger enhancement of the modulation bandwidth used in ultra‐high‐ speed ...
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Vector cavity solitons in broad area Vertical-Cavity Surface-Emitting lasers
... Vertical-Cavity Surface-Emitting Laser (VCSEL) under linearly polarized optical injection when varying optical injection linear polarization ...broad-area lasers as pixels in information ...
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Bistability conditions between lasing and non-lasing states for vertical-cavity surface-emitting lasers with frequency-selective optical feedback
... In order to integrate the model equations numerically, a forth-order variable-step method has been used. For low values of the feedback strength – i.e., σ being smaller the bistability threshold (13)–, a smooth LI-curve ...
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Photonic crystal Bragg lasers : design, fabrication, and characterization
... in lasers dates back to 1973 ...structures: surface emitting [65–68] and edge emitting [18, 27, ...For surface emitting lasers, light has to satisfy the Bragg conditions ...
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Phase-locked arrays of surface-emitting graded-photonic-heterostructure terahertz semiconductor lasers
... We demonstrated this operating principle experimentally using a phased array of two THz surface emitting lasers (Fig. 3), where the relative length of the ring L is the tunable parameter. The ...
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