high frequency semiconductor lasers
Fibre compatible modelocked lasers at 1 5μm
... modelocked semiconductor lasers that have been current modulated at low frequencies has been ...internal semiconductor laser ...a high DC current component subpulse elimination can be ...
214
Photonic crystals as functional mirrors for semiconductor lasers
... There is one unanswered question that arises from these conclusions: Why does the fundamental–fold MSB not appear on the FDTD simulations? There were two possible causes. Firstly if the fundamental–fold MSB is ...
172
The MBE growth and optimization of high performance terahertz frequency quantum cascade lasers
... that high-performance THz QCLs can only be obtained when the designed structure is strictly ...growing semiconductor layer can be monitored as a function of time and ...
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High-frequency dynamics of evanescently-coupled nanowire lasers
... (NW) lasers based on traditional III–V materials ...individually-selected semiconductor NW lasers from their original substrate for their subsequent release at desired locations in targeted surfaces ...
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Dynamics of of single- and multicontact external cavity semiconductor lasers under intracavity frequency sweeping: effects of material and laser parameters.
... tunable lasers can find a number of practical appli- cations, mainly in information acquisition ...whose frequency is swept rapidly across a wide wavelength range to measure the spectrum of interferences ...
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Studies on the Effective Physical Parameters for Chirp Reduction in Optical Injection Locked Semiconductor Lasers
... achieving high bit rate data transmission over long distances is very desirable, but due to the dispersion of optical fiber and optical electronics Chirp frequency component,it is not ...positive ...
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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
... In the numerical implementation of the model, we ran a time-dependent Travelling Wave model for field amplitudes, with the linewidth enhancement factor set to zero and an artificially narrow gain spectrum to ensure near ...
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Optical phase-lock loops using semiconductor lasers
... The amplitude and the phase of the current at each element of the array determine the pattern of the radiated beam, while the number of elements sets the resolution of the antenna. A beam forming network is necessary to ...
174
The Coherence Collapse Regime of High Coherence Si/III V Lasers and the Use of Swept Frequency Semiconductor Lasers for Full Field 3D Imaging
... Now that we have established the tools necessary to analyze the passive resonator of the laser we are ready to analyze the properties of the laser in the presence of external optical reflections. Previous studies of ...
133
High-Coherence Hybrid Si/III-V Semiconductor Lasers
... a frequency-discriminating scheme for the measurement of fre- quency noise in the configuration illustrated in figure ...of high-Q hybrid lasers based on undercoupled resonators, as well as the ...
194
Optoelectronic Control of the Phase and Frequency of Semiconductor Lasers
... large frequency chirp range (optical band- width) have applications in high resolution optical imaging, LIDAR and infrared and Terahertz ...for high-resolution imaging: (i) chirp multiplication by ...
214
Physical insight into the polarization dynamics of semiconductor vertical-cavity lasers
... measured frequency splitting between las- ing and nonlasing modes is slightly larger than the linear birefringence in the ...the high-frequency mode was ...
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Frequency Noise Control of Heterogeneous Si/III V Lasers
... radian frequency of v 0 has a length ...lasing frequency noise due to one spontaneous emission ...conventional semiconductor laser made with III-V, the electric field of the laser mode is maximum at ...
148
Optical holeburning in colour centres
... two lasers the most sensitive technique is to detect the transmission of one beam while modulating the other ...the lasers ’burning’ and ’reading’ but the convention is maintained (see chapter ...on ...
193
Design and Characterisation of III-V Semiconductor Nanowire Lasers
... nanowire lasers can be much larger compared to conventional, planar semiconductor lasers, because of their small dimensions and the high refractive index ...nanowire lasers can be ...
200
Prospects for Solar Pumped Semiconductor Lasers Geoffrey A. Landis
... Figure 6 shows an alternative structure, a surface-emitting laser with an external Fabry-Perot cavity rather than an integral cavity. There are advantages to this configuration for high-power output levels [13] ...
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One and two photon pumped organic semiconductor lasers
... The first step towards examining the two-photon absorption properties of polyfluorene is determining the strength of the nonlinear absorption of a high intensity beam. In general it is expected that the wavelength ...
185
Master Thesis OPTICAL COMMUNICATIONS USING CHAOTIC CARRIERS GENERATED BY ELECTRO-OPTICAL FEEDBACK DEVICES
... We have focused in this report on optical communications involving semiconductor laser with electro-optical feedback. This type of communications needed for confi- dential data transmission required chaotic ...
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Bifurcation scenarios in semiconductor lasers subject to optical injection
... The physically meaningful values of the linewidth enhancement factor α = 5, pump current P = 1 and the ratio of photon and carrier lifetime T = 1000 will be used throughout. It is of course an exciting question how these ...
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Discretely Tunable Semiconductor Lasers Suitable for Photonic Integration
... Previously, it was shown that by introducing a shallow slot into the active ridge waveguide of a laser, the longitudinal modes of the Fabry–Perot (FP) cavity were perturbed according to the position of the slot with ...
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