75 resources related to Multiwave mixing
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The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.
The Optical Fiber Communication Conference and Exhibition (OFC) is the largest global conference and exhibition for optical communications and networking professionals. For over 40 years, OFC has drawn attendees from all corners of the globe to meet and greet, teach and learn, make connections and move business forward.OFC attracts the biggest names in the field, offers key networking and partnering opportunities, and provides insights and inspiration on the major trends and technology advances affecting the industry. From technical presentations to the latest market trends and predictions, OFC is a one-stop-shop.
CAOL*2019 will provide a forum for scientists in a wide area of laser physics, optoelectronics, optics and photonics. The conference will cover wide frontiers in laser physics, photonics, nanotechnology, material physics, nonlinear optics and optical communications. Its characteristic feature is a stronger emphasis on the mathematical, physical and technological aspects of the problems in hand, together with detailed analysis of application problems. This year in the frame of CAOL we will organize two accompanying events, the Workshop on Data Science in Modern Optoelectronics and Laser Engineering and the Workshop “Measurement Uncertainty: Scientific, Standard, Applied and Methodical Aspects” (UM*2019). DSMOLE*2019 will be dedicated to problems arising from merging of modern optoelectronics and laser engineering with data science, artificial and computational intelligence. UM*2019 will cover cutting edge developments in metrology and adjacent fields.
OECC/PSC is one of the biggest worldwide conference on the optical communication, interconnects, and switching technologies. The scope includes optoelectronic components and devices, optical systems, optical interconnects, transmission, and networking.
Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions
IEEE Communications Magazine was the number three most-cited journal in telecommunications and the number eighteen cited journal in electrical and electronics engineering in 2004, according to the annual Journal Citation Report (2004 edition) published by the Institute for Scientific Information. Read more at http://www.ieee.org/products/citations.html. This magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications ...
Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.
Measurements and instrumentation utilizing electrical and electronic techniques.
All aspects of optical guided-wave science, technology, and engineering in the areas of fiber and cable technologies; active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; systems and subsystems; new applications; and unique field trials.
Microwave theory, techniques, and applications as they relate to components, devices, circuits, and systems involving the generation, transmission, and detection of microwaves.
Technical Digest. CLEO/Pacific Rim'95. The Pacific Rim Conference on Lasers and Electro-Optics, 1995
Proceedings of 5th European Quantum Electronics Conference, 1994
IEEE Journal of Selected Topics in Quantum Electronics, 1999
We present a new steady-state frequency-domain model of highly nondegenerate four-wave mixing in bulk semiconductor optical amplifiers (SOA's). The model can handle a large number of interacting optical fields and situations in which the nonlinear interactions are complex. It accounts for the longitudinal dependence of the population inversion in the SOA and the spectral dependence of the gain. Carrier population ...
IEEE Journal of Quantum Electronics, 1993
The dynamics of the transient thermal-grating-mediated probe-beam amplification effect in a nematic liquid crystal film is studied with the use of millisecond laser pulses. These experimental observations and the accompanying transient multiwave mixing analysis show that peak probe gain can occur at various locations within the grating decay time; the higher the induced index change, the sooner will peak gain ...
2008 4th International Conference on Advanced Optoelectronics and Lasers, 2008
The ways to improve the efficiency of light field transformations by dynamic holograms with the use of the frequency-nondegenerate multiwave-mixing schemes in linearly absorbing media are analyzed. The mechanism associated with the development of the fifth-order nonlinearities in pure and colored organic liquids due to the thermooptical coefficient nonlinearity as well as due to the temperature dependence of the solvent ...
We present a new steady-state frequency-domain model of highly nondegenerate four-wave mixing in bulk semiconductor optical amplifiers (SOA's). The model can handle a large number of interacting optical fields and situations in which the nonlinear interactions are complex. It accounts for the longitudinal dependence of the population inversion in the SOA and the spectral dependence of the gain. Carrier population pulsations, spectral-hole burning, and carrier heating, which dominate the nonlinear response over bandwidths into the terahertz range, are included. The model also includes output amplified spontaneous emission noise and allows important system parameters such as signal-to-noise ratio and noise figure to be estimated. A number of applications of the model are presented in which good agreement between theoretical and experimental results is demonstrated.
The dynamics of the transient thermal-grating-mediated probe-beam amplification effect in a nematic liquid crystal film is studied with the use of millisecond laser pulses. These experimental observations and the accompanying transient multiwave mixing analysis show that peak probe gain can occur at various locations within the grating decay time; the higher the induced index change, the sooner will peak gain occur.<<ETX>>
The ways to improve the efficiency of light field transformations by dynamic holograms with the use of the frequency-nondegenerate multiwave-mixing schemes in linearly absorbing media are analyzed. The mechanism associated with the development of the fifth-order nonlinearities in pure and colored organic liquids due to the thermooptical coefficient nonlinearity as well as due to the temperature dependence of the solvent density and heat is established. Based on this mechanism, the recording of quadratic dynamic holograms with a diffraction efficiency of 20% is realized using the frequency-nondegenerate six-wave mixing scheme.
A detailed theoretical treatment has been undertaken of multiwave mixing in semiconductor lasers, taking into account the effects of pump/probe depletion, carrier diffusion, usual gain saturation, nonlinear gain compression, total power dependence of the coupling coefficients as well as the longitudinal dependence of the nonlinear interaction. It is shown that the effect of carrier diffusion can considerably enhance the probe and conjugate reflectivity for detuning frequency near the relaxation oscillation frequency of the pump laser. It is demonstrated, in particular that, for relatively high input probe power, the probe and conjugate reflectivity can be enhanced significantly near the relaxation oscillation frequency of the pump laser, compared to that for low input probe power. Furthermore, both the probe reflectivity and the conjugate reflectivity show asymmetric characteristics with respect to the zero pump/probe frequency detunings. The pump/probe depletion effect plays an important role in determining the optical output power when the input probe power is larger than /spl sim/0.1 /spl mu/W.
A new model describing multiwave mixing of terahertz detuned picosecond optical pulses in semiconductor optical amplifiers (SOAs) is presented, by taking into account carrier depletion, carrier heating, spectral hole-burning, two-photon absorption, ultrafast nonlinear refraction and small signal gain differences for different mixing pulses. Special attention is paid to the influence of probe depletion (PD) and cross-gain modulation (XGM) on four-wave mixing (FWM) of optical pulses in SOAs. The effects of PD and XGM become more significant for shorter input pulsewidth, higher pulse energy and smaller pump-probe frequency detuning. Results indicate that if the effects of PD and XGM are neglected the FWM efficiency can be seriously overestimated.
A new contribution in the domain of experimental methods related to the nonlinear refraction characterization is introduced in this paper. By using different objects composed of different numbers of circular apertures at the entry of a 4f coherent imaging system and matched field stops (blocking geometrical image of the object) at the output, we can obtain diffracted beams beyond the stop areas. Presence of these beams is related to the intensity distribution pattern creating a combination of circular and sinusoidal gratings in the nonlinear material placed near the focal plane of focusing lens. The self-diffracted spectrum on this induced pattern generates diffracted beams appearing in the image plane. The three wave mixing process was combined with Z-scan. When the nonlinear material is moved around the focus we observe the variations of the diffraction efficiency defined as a new physical quantity to measure. The numerical simulation using FFT beam propagation method in angular spectrum were performed in order to determine the nonlinear refractive index. A good agreement between experiment and theory validated our approach.
In this paper, we show how the "Bogatov effect" can be included in a robust way into a multimode rate equations model that takes account of multi-wave mixing effects through dynamical gratings burned in the carrier distribution. We reveal how this dynamics might induce changes in the shape of the gain curve which ultimately manifests itself as operation of the laser on modes that do not correspond to the maximum of the gain curve. We also discuss the crucial role played by the carrier diffusion and introduce an intuitive visual approach to identify the phase-matching conditions that lead to the Bogatov effect. This information may be used to identify and interpret any eventual carrier dynamics induced bifurcation in the spectrum of the multimode laser.
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