vertical-cavity surface-emitting semiconductor lasers
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 ...Advanced ...
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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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Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback
... Broad-area 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 ...
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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 ...
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Controlled propagation of spiking dynamics in vertical-cavity surface-emitting lasers : towards neuromorphic photonic networks
... different 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 ...
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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 ...
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Physical insight into the polarization dynamics of semiconductor vertical-cavity lasers
... of semiconductor vertical-cavity surface- emitting lasers ~ VCSELs ! is an interesting subject to ...these lasers to be indifferent to the polarization ...
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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 ...based ...
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Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser
... pumped vertical-external cavity surface-emitting lasers (VECSEL) [1] combine the advantages of multiple quantum well semiconductor lasers with optical ...a ...
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High frequency continuous birefringence-induced oscillations in spin-polarized vertical-cavity surface-emitting lasers
... Sustained, large amplitude and tuneable birefringence- induced oscillations are obtained in a spin-Vertical Cav- ity Surface Emitting Laser (spin-VCSEL). Experimental evidence is provided using a ...
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Characterization of Vertical Cavity Surface Emitting Lasers With Electrical and Optical Derivative Spectroscopy
... a semiconductor p-n junction in 1962 16 ...laser cavity was formed by cleaved or polished semiconductor surfaces providing the optical feedback, and the p-n junction was forward biased for external ...
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Polarization fluctuations in vertical-cavity semiconductor lasers
... all lasers, but are exceptionally strong in semiconductor vertical-cavity surface-emitting lasers ~ VCSELs ! ...any semiconductor laser and leads, among others, to ...
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Polarization switches in vertical cavity surface emitting lasers
... Vertical Cavity Surface Emitting Lasers (VCSEL) are a novel class of semiconductor lasers which are having great success in many applications requiring high speed, ...
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Polarization dynamics in vertical-cavity surface emitting lasers
... in semiconductor lasers phase-amplitude coupling is particularly strong and, in addition, exists even for operation at the gain peak [25], the existence of these effects in VCSELs is not totally ...
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Effect of spatial hole burning on output characteristics of high power edge emitting semiconductor lasers : a universal analytical estimate and numerical analysis
... The two distinctions between (9) and the simple “lumped” formula (8) represent the two mechanisms via which LSHB directly affects the laser output. The first mechanism, present even in the absence of internal losses and ...
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Bistability conditions between lasing and non-lasing states for vertical-cavity surface-emitting lasers with frequency-selective optical feedback
... are gain-guided devices with an aperture diameter of 15 µm from EMCORE Corp. (emission wavelength in the 850 nm region) operating in the fundamental transverse mode close to threshold (up to approx. 20% above threshold). ...
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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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Phase-locked arrays of surface-emitting graded-photonic-heterostructure terahertz semiconductor lasers
... Figure 6(c) suggests that – for this specific architecture - arrays comprising three elements represent a good compromise for potential application of this technique, as they provide: an excellent far-field emission ...
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Polarization properties in the transition from below to above lasing threshold in broad-area vertical-cavity surface-emitting lasers
... The devices are electrically pumped with a low-noise DC current source between 0 and 30 mA. The typical lasing threshold at 0 ◦ C heat sink temperature is 15 mA. The VCSEL is mounted on a copper plate that is attached to ...
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Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser
... cial. First, the absorption can be further enhanced by optimizing the overlap integral of the pump field over QWs together with grouping QWs. Second, the ab- sorption per QW as well as the number of QWs can be increased. ...
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