1.55-/spl mu/m patterned vertical cavity surface emitting laser
Vertical-Cavity Surface-Emitting Lasers for Ultra-High Speed Photonics
... VCSELs have small size, are low cost, have high‐speed operation, have low power consumption, and can be fabricated into arrays [1,2]. These advantages cause VCSELs to attract much attention for use in photonics, e.g. ...
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Free-space optics mode-wavelength division multiplexing system using LG modes based on decision feedback equalization
... A FSO MWDM system of seven Laguerre-Gaussian (LG) modes based on DFE has been simulated in OptSim [26] and exhibited illustratively in Fig. 1. The FSO MWDM system consists of three parts; transmitter, FSO channel, ...
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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 ...
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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 signal ...
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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 optics and ...
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Calculating Threshold Current Density and Output Power of Vertical Cavity Surface Emitting Laser
... Vertical cavity surface emitting laser is one of the most improved optical transmitters for photonic integrated circuit ...Resonant cavity or this structure is along the ...
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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 ...Several laser ...
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Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser
... The appearance of multiple pulses can be explained by the rather long time it takes to build up the gain after the pump pulse because the carriers need to relax into the quantum wells. Hence, the effective pumping time ...
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Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy
... The laser cavity was formed by cleaved or polished semiconductor surfaces providing the optical feedback, and the p-n junction was forward biased for external ...edge emitting stripe geometry ...
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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 ...
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Polarization dynamics in vertical-cavity surface emitting lasers
... mated using an aspheric antireflection coated lens. After passing through a half-wave plate, the orthogonal polarized components of the VCSEL output are split by a Wollaston prism. For projection onto circular polarized ...
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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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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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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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Spatially Resolved Absorption Spectroscopy on a Microhollow Cathode Helium Plasma Using a Vertical-Cavity Surface-Emitting Laser
... WPQ-6943-2 M) and a polarized beam splitter (Thorlabs, PBS251), we divided the light beam into two; one was used in the frequency scan monitor us- ing a Fabry–Pérot interferometer (Neoark, SA-40C; FSR = ...
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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 ...external ...
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Electrically-controlled neuron-like spiking regimes in vertical-cavity surface-emitting lasers at ultrafast rates
... Fig. 1: (1) using directly an electrical signal generator (SG) whose output is connected to the Bias Tee or (2) converting an incoming amplitude-modulated optical signal to the electrical domain using a ...
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Circular polarization switching and bistability in an optically injected 1300 nm spin-vertical cavity surface emitting laser
... 3-λ cavity of the device consisted of five stacks of three quantum wells (QWs) placed approximately at the antinodes of the standing wave pattern of the optical ...
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Control of emitted light polarization in a 1310 nm dilute nitride spin-vertical cavity surface emitting laser subject to circularly polarized optical injection
... Fig. 1 (a) presents the experimental setup used in this work to investigate the effects of optical injection on the ellipticity (ε) of the spin-VCSEL’s emission (defined as in ...pump laser driven by a ...
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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
... and 1 % for p-polarized light. The detection path is isolated from the cavity via an optical isolator serving also as a linear ...the vertical polarization component for all ...
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