InP-based 1.55-/spl mu/m vertical cavity surface emitting lasers
GaInNAs-based Hellish-vertical cavity semiconductor optical amplifier for 1.3 mu m operation
... a vertical cavity surface emitting laser (VCSEL) operating in the linear regime below threshold, with a reduced number of top DBR ...VCSOA based on the Hellish structure as an ...
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Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser
... VECSEL sample for near-normal incidence and at a 45° angle of incidence for the pump light. For this experiment, a tunable cw Ti:sapphire laser was used as a pump source. The PL was detected perpendicular to the VECSEL ...
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Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy
... Inside the smaller box is a proto board mounted on four posts, with connection pins sticking upward, to provide electrical and mechanical support to the device under test (laser diode). A holder for the laser diode ...
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Controllable spiking patterns in long-wavelength vertical cavity surface emitting lasers for neuromorphic photonics systems
... micro-ring lasers etc) allowing their integration in monolithic photonic circuits for the development of ultra-small neuromorphic photonic modules using spiking signals to process ...
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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
... Laser cavity solitons (LCS) are a special class of dissipative solitons in a system out of equilibrium where cavity losses are counterbalanced by the energy input of the pumping [11, 12, ...pumping, ...
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Dynamic modelling of electrooptically modulated vertical compound cavity surface emitting semiconductor lasers
... shallow surface etching of the top mirror reflectivity can also improve the direct modu- lation (Westbergh et al 2010, ...the cavity as an alternative to current modulation; see ...semiconductor ...
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Spontaneous formation of vector vortex beams in vertical-cavity surface-emitting lasers with feedback
... If the down-scan is stopped at 618 mA and the current increased again, the structures of interest for this letter are obtained. Their power is about 100 µW. By measur- ing the Stokes parameter after the VBG, the ...
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Design of a LW-VCSEL Optical Source
... The vertical cavity surface emitting laser (VCSEL) is a low cost light source with attractive performance characteristics such as low power consumption, high speed capabilities at low ...
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Dynamics importance sampling for the collection of switching events in vertical cavity surface emitting lasers
... scheme based on dynamic importance sampling (DIMS) was proposed, allowing fast simulations of one-dimensional dynamical systems in the limit of very small noise ...
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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 ...
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Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser
... Vertical-external-cavity surface-emitting lasers (VECSELs) have been demonstrated to produce high continuous wave (CW) average output powers with excellent beam quality ...(MQW) ...
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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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Electrically-controlled neuron-like spiking regimes in vertical-cavity surface-emitting lasers at ultrafast rates
... Additionally, we have also tested the wavelength- independent nature of this scheme (using the red dashed boxed part of the experimental setup in Fig. 1). The main goal was to demonstrate the ultrafast activation ...
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Controlled propagation of spiking dynamics in vertical-cavity surface-emitting lasers : towards neuromorphic photonic networks
... experimentally the duration of the encoded perturbations, single or multiple spiking patterns can be generated from the first VCSEL-neuron in the system (T-VCSEL). The bottom plots (in red) in figs. 3(e-g) show in turn ...
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Polarization properties in the transition from below to above lasing threshold in broad-area vertical-cavity surface-emitting lasers
... emission the intracavity anisotropies play only an auxiliary role in polarization selection above threshold. In contrast, the polarization-selective properties of reflection and transmission of the distributed Bragg ...
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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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Calculating Threshold Current Density and Output Power of Vertical Cavity Surface Emitting Laser
... [3] K. Kumarajah, P. S. Menon, M. Ismail, B. Y. Yeop, S. Shaari, Multi-quantum Well Design Parameter Variation in InP-based VCSEL”, Proceedings of the 8th WSEAS International Conference on ...
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Structural Analysis of InGaAs Based Vertical Cavity Surface-Emitting Quantum Well Laser
... nm lasers are based on the InGaAsP or InGaAlAs quantum-well (QW) active material system on an InP ...nm InP-based diode lasers suffer poor lasing performance at high temperature ...
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Vector cavity solitons in broad area Vertical-Cavity Surface-Emitting lasers
... Fig. 1. The VCSEL is submitted to optical injection from an external cavity diode laser in Littrow configuration (Sacher Lasertechnik TEC100-960-60), isolated from the rest of the setup by an optical ...
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Spin induced gigahertz polarization oscillations in vertical-cavity surface-emitting laser devices
... The study of spin-controlled optoelectronic devices has revealed a considerable application potential based on the ability of transforming and modulating spin signals efficiently. These properties might enable ...
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