Optical Gain Experiment Manual
... The Variable stripe length Method which has been demonstrated by Shaklee and Leheny in 1971 is a direct measurement of the optical gain. A sample from the active material is pumped by a homogeneous line of a laser beam emitted from high power pulsed laser. The emitted light from the edge of the samp ...
... The Variable stripe length Method which has been demonstrated by Shaklee and Leheny in 1971 is a direct measurement of the optical gain. A sample from the active material is pumped by a homogeneous line of a laser beam emitted from high power pulsed laser. The emitted light from the edge of the samp ...
IJFTR 12(2) 100-102
... two back-scattered patterns corresponding to the ordinary and the extraordinary rays and their superposition, could give rise to diffuse patterns, as has been obtained in the present work. Also, the aniso.tropicity of the fibres leads to comparatively weak patterns. There are some limitations encoun ...
... two back-scattered patterns corresponding to the ordinary and the extraordinary rays and their superposition, could give rise to diffuse patterns, as has been obtained in the present work. Also, the aniso.tropicity of the fibres leads to comparatively weak patterns. There are some limitations encoun ...
Increasing the blue-shift of a supercontinuum by
... to a blue-shift of the dispersive wave [20, 21]. Second, a type of four-wave mixing (FWM) can occur between the soliton and the dispersive wave which leads to the generation of energy at wavelengths shorter than the dispersive wave [22]. For both of the two methods, the blue-shifted radiation experi ...
... to a blue-shift of the dispersive wave [20, 21]. Second, a type of four-wave mixing (FWM) can occur between the soliton and the dispersive wave which leads to the generation of energy at wavelengths shorter than the dispersive wave [22]. For both of the two methods, the blue-shifted radiation experi ...
Advanced Applications
... Thorlabs’ Saturated Absorption Spectroscopy Systems provide a means to create a highly sensitive lock directly tied to an atomic transition. When an atom absorbs (or emits) a photon, the absorption (emission) frequency is Doppler shifted. The direction and magnitude of the shift with respect to line ...
... Thorlabs’ Saturated Absorption Spectroscopy Systems provide a means to create a highly sensitive lock directly tied to an atomic transition. When an atom absorbs (or emits) a photon, the absorption (emission) frequency is Doppler shifted. The direction and magnitude of the shift with respect to line ...
Low-Temperature Bonding for Silicon-Based Micro
... signal transmission, and often detectors for signal detection (Figure 1). These components may be discrete or integrated. In the case of discrete components, optical coupling is realized between them. For practical applications, for example for detecting weak signals such as biological fluorescence, ...
... signal transmission, and often detectors for signal detection (Figure 1). These components may be discrete or integrated. In the case of discrete components, optical coupling is realized between them. For practical applications, for example for detecting weak signals such as biological fluorescence, ...
Combining Photonic Crystal and Optical Monte
... with θ-values larger than 90◦ corresponding to photons that impinge on the PhC from the optical glue side instead of the scintillator side. Due to the symmetry of the PhC, the azimuth angle φ was varied from 0◦ to 30◦ for hexagonal and from 0◦ to 45◦ for orthogonal PhC gratings. For each pair of θ a ...
... with θ-values larger than 90◦ corresponding to photons that impinge on the PhC from the optical glue side instead of the scintillator side. Due to the symmetry of the PhC, the azimuth angle φ was varied from 0◦ to 30◦ for hexagonal and from 0◦ to 45◦ for orthogonal PhC gratings. For each pair of θ a ...
H2 Raman overtone intensities measured for
... temperature (26-28 °C). The density dependence of the integrated intensity of the first overtone Q( 1) line was measured for sample pressures in the range 1-11 atm, and no significant deviation from lip = constant was detected at the 2% level of accuracy. The observed linearity of the scattered inte ...
... temperature (26-28 °C). The density dependence of the integrated intensity of the first overtone Q( 1) line was measured for sample pressures in the range 1-11 atm, and no significant deviation from lip = constant was detected at the 2% level of accuracy. The observed linearity of the scattered inte ...
Pulse Propagation in Optical Fibers
... which, their analytical solutions are calculated. An efficient method is used in the numerical simulations under the nonlinear regime: the split-step fourier Method (SSFM). Finally, a brief study of the fundamental soliton is presented. Keywords — Fibre optics, dispersion, pulse propagation, soliton ...
... which, their analytical solutions are calculated. An efficient method is used in the numerical simulations under the nonlinear regime: the split-step fourier Method (SSFM). Finally, a brief study of the fundamental soliton is presented. Keywords — Fibre optics, dispersion, pulse propagation, soliton ...
Synthesis and Characterization of Optically Active Zn
... Furthermore, encapsulation of indicators within the nanocomposite matrix allows continued sensing without contamination and easy for concentration measurements with species detections (Islam et al. 2016). It also gives good adhesion with direct coating on silica fibers without the use of additional ...
... Furthermore, encapsulation of indicators within the nanocomposite matrix allows continued sensing without contamination and easy for concentration measurements with species detections (Islam et al. 2016). It also gives good adhesion with direct coating on silica fibers without the use of additional ...
Dark solitons in mode-locked lasers Mark J. Ablowitz , Theodoros P. Horikis
... the door to new applications in the fields of optical communications [4] and femtosecond lasers [6]. In the nonmode-locking regime, the first train of dark solitons was successfully achieved in an all normal dispersion Erbiumdoped fiber laser with an in-cavity polarizer. In ML lasers they have been ...
... the door to new applications in the fields of optical communications [4] and femtosecond lasers [6]. In the nonmode-locking regime, the first train of dark solitons was successfully achieved in an all normal dispersion Erbiumdoped fiber laser with an in-cavity polarizer. In ML lasers they have been ...
Second Harmonic Generation Technique and its Applications
... of the center of inversion, except in some isolated cases where the SHG was also observed in centrosymmetric materials, such as phthalocyanines [19] and fullerene C60 thin films [20–25] as due to the quadrupolar, magnetic dipolar or combination of both contributions. There exists a large class of ph ...
... of the center of inversion, except in some isolated cases where the SHG was also observed in centrosymmetric materials, such as phthalocyanines [19] and fullerene C60 thin films [20–25] as due to the quadrupolar, magnetic dipolar or combination of both contributions. There exists a large class of ph ...
modeling the thermal absorption factor of photovoltaic/thermal combi
... back contact. Configuration 5 was simulated to find out how large the influence of these multiple reflections is. This configuration is identical to configuration 4, but now both silicon interfaces are rough. To simulate the rough interfaces of configuration 5, a roughness parameter of 40 was used. ...
... back contact. Configuration 5 was simulated to find out how large the influence of these multiple reflections is. This configuration is identical to configuration 4, but now both silicon interfaces are rough. To simulate the rough interfaces of configuration 5, a roughness parameter of 40 was used. ...
Journal of Modern Optics Slow and fast light: fundamentals and
... has been studied since the 1960s [33–35] and has successfully been exploited for slow- and fast-light research [8,9,11,36–42]. The idea behind CPO is illustrated in Figure 4. If a pump beam at frequency ! and a detuned probe beam at frequency !þ co-propagate through a saturable absorber, the ground ...
... has been studied since the 1960s [33–35] and has successfully been exploited for slow- and fast-light research [8,9,11,36–42]. The idea behind CPO is illustrated in Figure 4. If a pump beam at frequency ! and a detuned probe beam at frequency !þ co-propagate through a saturable absorber, the ground ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... transmission systems has brought out the necessity of increasing the spectral efficiency by employing different transmission techniques and also increasing transmission speed in optical networks. One optical technique used to improve the efficiency of optical communication systems is polarization di ...
... transmission systems has brought out the necessity of increasing the spectral efficiency by employing different transmission techniques and also increasing transmission speed in optical networks. One optical technique used to improve the efficiency of optical communication systems is polarization di ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.