Simulation of Fiber Fuse Phenomenon in Single
... changed from T0 to T0 + 50 K. Furthermore, Kashyap et al. reported that the best fit between the experimental and theoretical fiber fuse velocities was obtained when the α value of the Ge-doped silica core at high temperatures of above T0 was fixed to be 4.0 ×104 m−1 at 1.064 µm [19]. Hand and Russe ...
... changed from T0 to T0 + 50 K. Furthermore, Kashyap et al. reported that the best fit between the experimental and theoretical fiber fuse velocities was obtained when the α value of the Ge-doped silica core at high temperatures of above T0 was fixed to be 4.0 ×104 m−1 at 1.064 µm [19]. Hand and Russe ...
JOURNAL OF T O THE EUROPEAN OPTI CAL SOCI ETY
... This phenomena can be explained with soliton-self frequency shift (SSFS). As the input power is further increased up to 2.6 nJ of energy pulse a red-shifted soliton brunch with intensity peak at 990 generates blue-shifted dispersion wave with maximum peak at 700 nm. In order to find out whether the ...
... This phenomena can be explained with soliton-self frequency shift (SSFS). As the input power is further increased up to 2.6 nJ of energy pulse a red-shifted soliton brunch with intensity peak at 990 generates blue-shifted dispersion wave with maximum peak at 700 nm. In order to find out whether the ...
Tuning Dynamic Range and Sensitivity of White
... probability of absorbance. Second, the reflectance dips are rather broad compared to prism-based white-light refractometers. This is caused by the multimode nature of the fiber; photons traveling down the fiber will interact with the sensing surface with a distribution of angles equal to the accepta ...
... probability of absorbance. Second, the reflectance dips are rather broad compared to prism-based white-light refractometers. This is caused by the multimode nature of the fiber; photons traveling down the fiber will interact with the sensing surface with a distribution of angles equal to the accepta ...
Vacuum-ultraviolet to infrared supercontinuum in hydrogen
... and DUV spectra are measured by directing the beam to either a UV-NIR or a DUV CCD-based spectrometer using a UV-enhanced optical fiber and a parabolic mirror. Before entering the spectrometer fiber, the signal is attenuated by multiple reflections from several glass wedges. (c) Scanning electron mi ...
... and DUV spectra are measured by directing the beam to either a UV-NIR or a DUV CCD-based spectrometer using a UV-enhanced optical fiber and a parabolic mirror. Before entering the spectrometer fiber, the signal is attenuated by multiple reflections from several glass wedges. (c) Scanning electron mi ...
2001 - Institute of Applied Physics - Friedrich-Schiller
... LPIA, we were able to calculate the phase function of an optical element under consideration of the refraction of the incident wave, its deflection and the resulting optical path (see Figure 2c). After calculating the phase and amplitude distribution behind the element by LPIA, we simulated the wave ...
... LPIA, we were able to calculate the phase function of an optical element under consideration of the refraction of the incident wave, its deflection and the resulting optical path (see Figure 2c). After calculating the phase and amplitude distribution behind the element by LPIA, we simulated the wave ...
PDF
... LCs known to split into defects of lower charge17, the phase singularities of large N tend to split into multiple phase singularities of elementary charge N 561 (Fig. 3e,h,i). However, the physical origin of this splitting is very different from that of splitting of high-strength disclinations in LC ...
... LCs known to split into defects of lower charge17, the phase singularities of large N tend to split into multiple phase singularities of elementary charge N 561 (Fig. 3e,h,i). However, the physical origin of this splitting is very different from that of splitting of high-strength disclinations in LC ...
Pulse splitting by modulating the thickness of buffer layer of two
... simultaneously with two symmetrically incident coherent plane waves s and r through photorefractive effect, while the buffer layer does not record grating for it is not photosensitive material. Then the TL-VHG is readout by a femtosecond pulse u(t), the transmitted and diffracted pulses are represen ...
... simultaneously with two symmetrically incident coherent plane waves s and r through photorefractive effect, while the buffer layer does not record grating for it is not photosensitive material. Then the TL-VHG is readout by a femtosecond pulse u(t), the transmitted and diffracted pulses are represen ...
Replication of Holograms with Corn Syrup by Rubbing
... environmental relative humidity. A registered hologram has a short lifetime as a function of the environmental relative humidity. At a high humidity of around 50% or more, hologram lifetime is in the order of a few days, whereas at a low humidity of around 35% or less the corresponding lifetime is i ...
... environmental relative humidity. A registered hologram has a short lifetime as a function of the environmental relative humidity. At a high humidity of around 50% or more, hologram lifetime is in the order of a few days, whereas at a low humidity of around 35% or less the corresponding lifetime is i ...
Optical switches
... • dispersion is measured in ps/(nm*km), i.e. delay per wavelength variation and fiber length • Dispersion depends on the wavelength • at some wavelength dispersion may be zero • in conventional single mode fiber this typically occurs at 1.3 µm - below, dispersion is negative, above it is positive • ...
... • dispersion is measured in ps/(nm*km), i.e. delay per wavelength variation and fiber length • Dispersion depends on the wavelength • at some wavelength dispersion may be zero • in conventional single mode fiber this typically occurs at 1.3 µm - below, dispersion is negative, above it is positive • ...
Specialty flat-top beam delivery fibers with controlled beam
... The goal of this study is to propose an all-fiber solution to achieve beam shaping and beam control while offering the advantages of monolithic fiber-based systems: low-loss, low-maintenance, small footprint and cost-effectiveness. Therefore, the scope of this work has been limited to single-fiber t ...
... The goal of this study is to propose an all-fiber solution to achieve beam shaping and beam control while offering the advantages of monolithic fiber-based systems: low-loss, low-maintenance, small footprint and cost-effectiveness. Therefore, the scope of this work has been limited to single-fiber t ...
Optical Fibers and Fiber-Optic Communications
... those scientists well-acquainted with the microscopic structure of the insect eye who realized that an appropriate bundle of optical waveguides could be made to transfer an image, and the first application of optical fibers to imaging was conceived. It was Charles Kao1 who first suggested the possib ...
... those scientists well-acquainted with the microscopic structure of the insect eye who realized that an appropriate bundle of optical waveguides could be made to transfer an image, and the first application of optical fibers to imaging was conceived. It was Charles Kao1 who first suggested the possib ...
Spectral phase conjugation via temporal imaging
... methods exist such as the use of dispersion-shifted or dispersion-compensating fiber, active compensation methods come with the added benefit of compensating for dynamic distortions including removal of additional degradations incurred in pulse propagation. For example midpoint temporal phase conjug ...
... methods exist such as the use of dispersion-shifted or dispersion-compensating fiber, active compensation methods come with the added benefit of compensating for dynamic distortions including removal of additional degradations incurred in pulse propagation. For example midpoint temporal phase conjug ...
Resonant bio- and chemical sensors using low-refractive
... Bragg fibers. In resonant sensors one typically employs fibers with strongly non-uniform spectral transmission characteristics that are sensitive to changes in the real part of the analyte refractive index. Moreover, if narrow absorption lines are present in the analyte transmission spectrum, due to K ...
... Bragg fibers. In resonant sensors one typically employs fibers with strongly non-uniform spectral transmission characteristics that are sensitive to changes in the real part of the analyte refractive index. Moreover, if narrow absorption lines are present in the analyte transmission spectrum, due to K ...
Fiber-based optical parametric amplifiers and their applications
... the interest in such optical parametric amplifiers (OPA). The fiber-based OPA is a well-known technique offering discrete or “lumped” gain using only a few hundred meters of fiber [4], [5]. It offers a wide gain bandwidth and may in similarity with the Raman amplifier [6] be tailored to operate at a ...
... the interest in such optical parametric amplifiers (OPA). The fiber-based OPA is a well-known technique offering discrete or “lumped” gain using only a few hundred meters of fiber [4], [5]. It offers a wide gain bandwidth and may in similarity with the Raman amplifier [6] be tailored to operate at a ...
Metastable optical gratings in compound semiconductors
... of defects in III–V and II–VI alloys.2 These defects can be transformed into metastable states by optical excitation at low temperature, and can recover by thermal regeneration. The optical sensitivity of these defects, and the strong optical gratings that are produced, make them candidates for opti ...
... of defects in III–V and II–VI alloys.2 These defects can be transformed into metastable states by optical excitation at low temperature, and can recover by thermal regeneration. The optical sensitivity of these defects, and the strong optical gratings that are produced, make them candidates for opti ...
light sources for optical fibers
... could be sent through a fiber and distinguished at the far end. In such a case, the system may be limited not by how fast the source can be turned on and off or by the speed of response of the detector, but by the differential time delay of the fiber. This smearing of pulses can be remedied through ...
... could be sent through a fiber and distinguished at the far end. In such a case, the system may be limited not by how fast the source can be turned on and off or by the speed of response of the detector, but by the differential time delay of the fiber. This smearing of pulses can be remedied through ...
SHS_OH_flame_ApplOpt_revision_RJB
... approximately one degree (half angle). The light expands over the McKenna burner which burns a stoichiometric mixture of ethylene and air, producing significant amounts of OH. The light is then sent through a telescope composed of an f = -125 mm lens followed by a f = 200 mm lens. The telescope deli ...
... approximately one degree (half angle). The light expands over the McKenna burner which burns a stoichiometric mixture of ethylene and air, producing significant amounts of OH. The light is then sent through a telescope composed of an f = -125 mm lens followed by a f = 200 mm lens. The telescope deli ...
Post-print of: J. Mater. Chem. , 2010, 20, 6408
... materials and hence attain multifunctional structures that combine the structural photonic response with other properties such as photoconductivity, charge diffusion, light emission, or flexibility. This has recently been put into practice to build photoconducting,16 lasing,17 or flexible18 1DPCs, a ...
... materials and hence attain multifunctional structures that combine the structural photonic response with other properties such as photoconductivity, charge diffusion, light emission, or flexibility. This has recently been put into practice to build photoconducting,16 lasing,17 or flexible18 1DPCs, a ...
Paper Title
... many advantages due to high tunability of the acousto-optical technique. Namely, exciting frequency (and therefore grating period) can be adjusted with ppm accuracy to any value in the kHz – GHz region, enabling therefore tuning (scaling) the given waveguide to many available lasers or other narrow- ...
... many advantages due to high tunability of the acousto-optical technique. Namely, exciting frequency (and therefore grating period) can be adjusted with ppm accuracy to any value in the kHz – GHz region, enabling therefore tuning (scaling) the given waveguide to many available lasers or other narrow- ...
Monitoring the Evaporation of Fluids from Fiber-Optic Micro
... refractive index and chemical composition of solutions. In most cases, droplets are monitored through direct observation in contact angle goniometers, by micro-gravimeters, by atomic force microscopy, or using measurements of electrical capacitance [5–8]. These methods provide high accuracy, however ...
... refractive index and chemical composition of solutions. In most cases, droplets are monitored through direct observation in contact angle goniometers, by micro-gravimeters, by atomic force microscopy, or using measurements of electrical capacitance [5–8]. These methods provide high accuracy, however ...
Choosing Breakfast Cereals
... drink a vitamin C-rich beverage along with it. Cereals with added soy protein, flax, and dried fruit usually do not contain enough of those ingredients to improve your health as they may claim. ...
... drink a vitamin C-rich beverage along with it. Cereals with added soy protein, flax, and dried fruit usually do not contain enough of those ingredients to improve your health as they may claim. ...
INFLUENCE OF OPTICAL PROPERTIES AND FIBERSEPARATION ON LASER DOPPLER FLOWMETRY
... fiber separation but also that the it is affected by the optical properties of the tissue. In addition, Weiss et al. shows that the sampling depth decreases with the absorption coefficient. However, their results are restricted to fiber separations larger than 1 mm, a range were LDF is rarely used. ...
... fiber separation but also that the it is affected by the optical properties of the tissue. In addition, Weiss et al. shows that the sampling depth decreases with the absorption coefficient. However, their results are restricted to fiber separations larger than 1 mm, a range were LDF is rarely used. ...
Full Text PDF
... located in one of MZI's arms. The light source of the interferometer is the He-Ne laser with a 632.8 nm wavelength. The cell was fixed on the base plate of a spectrometer to enable us to change the incidence angle of laser beam with a small fraction of degree down to 10 minutes. The whole range of t ...
... located in one of MZI's arms. The light source of the interferometer is the He-Ne laser with a 632.8 nm wavelength. The cell was fixed on the base plate of a spectrometer to enable us to change the incidence angle of laser beam with a small fraction of degree down to 10 minutes. The whole range of t ...
Fiber Bragg grating
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a wavelength-specific dielectric mirror. A fiber Bragg grating can therefore be used as an inline optical filter to block certain wavelengths, or as a wavelength-specific reflector.