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5 Optical Fibers
... is expected that a number of rays will propagate provided they can be launched into the fiber. The class of fiber that can support the simultaneous propagation of a number of rays is known as multimode fiber. The term “mode” is used in a more sophisticated analysis of light propagation using Maxwell ...
... is expected that a number of rays will propagate provided they can be launched into the fiber. The class of fiber that can support the simultaneous propagation of a number of rays is known as multimode fiber. The term “mode” is used in a more sophisticated analysis of light propagation using Maxwell ...
PDF
... are determined by the numerical apertures of the fiber and the geometrical settings of the optical elements composing the spectral filter. The pump is a 5-ps-duration mode-locked pulse train with a repetition rate of 75.3 MHz, obtained by spatially dispersing the output of an optical parametric osci ...
... are determined by the numerical apertures of the fiber and the geometrical settings of the optical elements composing the spectral filter. The pump is a 5-ps-duration mode-locked pulse train with a repetition rate of 75.3 MHz, obtained by spatially dispersing the output of an optical parametric osci ...
V4102176181
... Four-wave mixing is one of the major limiting factors in wavelength divison multiplexing optical fiber communication systems that use the low dispersion fiber or narrow channel spacing. When multiple optical channels passing through the same fiber interact with each other very weakly and these weak ...
... Four-wave mixing is one of the major limiting factors in wavelength divison multiplexing optical fiber communication systems that use the low dispersion fiber or narrow channel spacing. When multiple optical channels passing through the same fiber interact with each other very weakly and these weak ...
Get PDF - OSA Publishing
... Hyperspectral imaging spectrometers are radiation sensors that provide a collection of spectral images of an inhomogeneous scene. This allows the spectral signature for each object point to be determined. They can be applied to perform many different task such as accurate mapping of wide areas, obje ...
... Hyperspectral imaging spectrometers are radiation sensors that provide a collection of spectral images of an inhomogeneous scene. This allows the spectral signature for each object point to be determined. They can be applied to perform many different task such as accurate mapping of wide areas, obje ...
PDF
... conducted by Fiorentino et al. [5] and Li et al. [6, 7], a commercially available dispersionshifted fiber was used as the χ (3) medium in which photon pairs were generated through nondegenerate four-photon scattering (FPS). In recent years there has been great interest in using microstructure fibers ...
... conducted by Fiorentino et al. [5] and Li et al. [6, 7], a commercially available dispersionshifted fiber was used as the χ (3) medium in which photon pairs were generated through nondegenerate four-photon scattering (FPS). In recent years there has been great interest in using microstructure fibers ...
Frequency Mode Locking in Erbium Doped Fiber Laser Dhyaa . F
... rare earth or transition metal ions doped into an insulating dielectric solid. These are termed solid state lasers, and include laser erbium [3]. The gain of erbium doped fiber lasers (EDFLs) depends on many parameters such as erbium-ion concentration, amplifiers length, core radius, and pump power ...
... rare earth or transition metal ions doped into an insulating dielectric solid. These are termed solid state lasers, and include laser erbium [3]. The gain of erbium doped fiber lasers (EDFLs) depends on many parameters such as erbium-ion concentration, amplifiers length, core radius, and pump power ...
High-resolution Measurement of Refractive Index Based on Resonant Tunneling Effect
... The PC ( HL)m provides a photonic band gap (PBG), in which the propagation of electromagnetic (EM) waves or photons is strongly inhibited. Although there are no photon modes in the PBG, the defect modes (sharp peaks) could be induced by breaking its periodicity due to change of the interference beha ...
... The PC ( HL)m provides a photonic band gap (PBG), in which the propagation of electromagnetic (EM) waves or photons is strongly inhibited. Although there are no photon modes in the PBG, the defect modes (sharp peaks) could be induced by breaking its periodicity due to change of the interference beha ...
Fluidic Optics - Whitesides Group
... Fabrication in PDMS is easy, and its use as a material reduces the time, complexity, and cost of prototyping; its influence on costs of manufactured systems remains to be established, but polymers are, in general, less expensive than ceramics as materials. PDMS has a refractive index of ~ 1.4. It is ...
... Fabrication in PDMS is easy, and its use as a material reduces the time, complexity, and cost of prototyping; its influence on costs of manufactured systems remains to be established, but polymers are, in general, less expensive than ceramics as materials. PDMS has a refractive index of ~ 1.4. It is ...
self-study - Technion moodle
... These developments eventually allowed third-generation systems to operate commercially at 2.5 Gbit/s with repeater spacing in excess of 100 km. ...
... These developments eventually allowed third-generation systems to operate commercially at 2.5 Gbit/s with repeater spacing in excess of 100 km. ...
Overview of Stimulated Brillouin Scattering Effect
... within optical fibers are stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS). The non-linear phenomenon of SBS, first observed in 1964 [1, 2]. Once the power launched into an optical fiber exceeds a certain level, which is known as threshold level or threshold power, most of ...
... within optical fibers are stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS). The non-linear phenomenon of SBS, first observed in 1964 [1, 2]. Once the power launched into an optical fiber exceeds a certain level, which is known as threshold level or threshold power, most of ...
Refractive indexes of (Al,Ga,In)As epilayers on InP for optoelectronic
... large 0.5 eV conduction band offset, an attractive feature for electron confinement in quantum well structures. The material system also has the technological advantage of having only one Group V element, thus making composition control easier, especially in conventional molecular beam epitaxy (MBE) ...
... large 0.5 eV conduction band offset, an attractive feature for electron confinement in quantum well structures. The material system also has the technological advantage of having only one Group V element, thus making composition control easier, especially in conventional molecular beam epitaxy (MBE) ...
V. experimental setup of all-optical tunable delay
... in pulses; optical/electronic conversion of information is a bottleneck for increasing the transmission rate. For packet-switched networks, optical delays that are tunable over reasonably long ranges and transparent to the packet modulation format is needed by delaying and possibly interchanging ful ...
... in pulses; optical/electronic conversion of information is a bottleneck for increasing the transmission rate. For packet-switched networks, optical delays that are tunable over reasonably long ranges and transparent to the packet modulation format is needed by delaying and possibly interchanging ful ...
(full text)
... f constant decreases A⊥ . This effect is observed because there are more air-NbN interfaces per unit area for a grating with a smaller pitch than one with a larger pitch, and the boundary ...
... f constant decreases A⊥ . This effect is observed because there are more air-NbN interfaces per unit area for a grating with a smaller pitch than one with a larger pitch, and the boundary ...
Part 1
... Key to the mass production of submicron scale microelectronic devices is the ability to accurately transfer a master pattern to a photosensitive layer on a substrate. One factor limiting the size of the devices that can be created is the ability to transfer these patterns without distortion. Distort ...
... Key to the mass production of submicron scale microelectronic devices is the ability to accurately transfer a master pattern to a photosensitive layer on a substrate. One factor limiting the size of the devices that can be created is the ability to transfer these patterns without distortion. Distort ...
Simulation of Optical Microfiber Loop Resonators for Ambient Refractive Index Sensing
... Figure 1. (a) Geometry of of an MLR and (b) Optical signal transmits in a microfiber with the ambient refractive index na. 2. Theory 2.1. Fundamental s of an MLR A typical MLR is shown in Fig. 1(a). A1, A2, B1 and B2 are the complex mode amplitudes. Coupling of optical signal occurs in the region se ...
... Figure 1. (a) Geometry of of an MLR and (b) Optical signal transmits in a microfiber with the ambient refractive index na. 2. Theory 2.1. Fundamental s of an MLR A typical MLR is shown in Fig. 1(a). A1, A2, B1 and B2 are the complex mode amplitudes. Coupling of optical signal occurs in the region se ...
Ammonia Optical Sensing by Microring Resonators
... Other approaches to NH3 sensing are based on potentiometer electrodes [5], infrared gas analyzers [6] and conducting polymers [7]. Different kinds of optical ammonia concentration sensors, based on monitoring the absorption or fluorescence characteristics of sensing films deposited onto an optical f ...
... Other approaches to NH3 sensing are based on potentiometer electrodes [5], infrared gas analyzers [6] and conducting polymers [7]. Different kinds of optical ammonia concentration sensors, based on monitoring the absorption or fluorescence characteristics of sensing films deposited onto an optical f ...
Fiber Optic Cable Beam Delivery Systems
... Fiber Optic Cable Lee Laser uses only the highest quality, low-loss optical transmission fibers. The single-fiber cable features a high-purity silica glass core available in diameters from 200 m to 1000 m. Core size is determined by the desired laser beam power throughput, with the largest size used ...
... Fiber Optic Cable Lee Laser uses only the highest quality, low-loss optical transmission fibers. The single-fiber cable features a high-purity silica glass core available in diameters from 200 m to 1000 m. Core size is determined by the desired laser beam power throughput, with the largest size used ...
Waveguide Dispersion
... Dispersion flattened fiber example. The material dispersion coefficient (Dm) for the core material and waveguide dispersion coefficient (Dw) for the doubly clad fiber result in a flattened small chromatic dispersion between l1 and l2. ...
... Dispersion flattened fiber example. The material dispersion coefficient (Dm) for the core material and waveguide dispersion coefficient (Dw) for the doubly clad fiber result in a flattened small chromatic dispersion between l1 and l2. ...
Conference title, upper and lower case, bolded, 18 point
... >5 [5, 6] because of high κ. Also, the slope efficiency shown in Fig. 4(d) for the encircled region that represents the minimum threshold current region also confirms that the slope efficiency is greater than 0.2mW/mA, which is more than ~2×-5× compared to the prior-arts [4-6]. We also confirmed tha ...
... >5 [5, 6] because of high κ. Also, the slope efficiency shown in Fig. 4(d) for the encircled region that represents the minimum threshold current region also confirms that the slope efficiency is greater than 0.2mW/mA, which is more than ~2×-5× compared to the prior-arts [4-6]. We also confirmed tha ...
Characterization of Encircled Flux Source For Multimode
... With increasing adoption of high speed fiber networks, qualifying the infrastructure becomes imperative before deployment. Be it Ethernet standards or the Fiber Channel standards, the primary performance metric has always been the insertion loss (attenuation) of the channel. The performance specific ...
... With increasing adoption of high speed fiber networks, qualifying the infrastructure becomes imperative before deployment. Be it Ethernet standards or the Fiber Channel standards, the primary performance metric has always been the insertion loss (attenuation) of the channel. The performance specific ...
Modeling Moiré: Visual Beat Effects in Nature and Optical Metrology
... that looked like a cat’s eye. Figures 2 (b) and 2 (c) show the screenshots of the M ATHEMATICA output for these cases. Although the two types of gratings themselves appeared to be rather similar, the moiré patterns created had a very discernible dissimilarity between them. Another type of grating s ...
... that looked like a cat’s eye. Figures 2 (b) and 2 (c) show the screenshots of the M ATHEMATICA output for these cases. Although the two types of gratings themselves appeared to be rather similar, the moiré patterns created had a very discernible dissimilarity between them. Another type of grating s ...
Correlated diffraction and fluorescence in the backscattering
... beam is injected close to a normal incidence and the scattered light is collected over all the emergence and azimuthal directions and analyzed in the spectrometer. The third one defines a bidirectional measurement where, for a fixed angle of incidence, diffracted wavelengths are searched at specific ...
... beam is injected close to a normal incidence and the scattered light is collected over all the emergence and azimuthal directions and analyzed in the spectrometer. The third one defines a bidirectional measurement where, for a fixed angle of incidence, diffracted wavelengths are searched at specific ...
this PDF file
... et al. [17] of U.S. MicroE successfully used the optical path design of natural interference to complete the optical encoder pickup head. They indicated that the tolerance of pickup head for grating scale could be improved greatly by using wavefront compensation. In 1999, Henshaw [18] of Britain Ren ...
... et al. [17] of U.S. MicroE successfully used the optical path design of natural interference to complete the optical encoder pickup head. They indicated that the tolerance of pickup head for grating scale could be improved greatly by using wavefront compensation. In 1999, Henshaw [18] of Britain Ren ...
Microsoft Office PowerPoint 2003 Beta - poster#2
... (ca 7 nm for a 20-mer), and a fluorochrome molecule. The physical dimensions of the fluorochrome we use, Alexa 532, have not been determined but are likely to be on the order of several nm in diameter (Molecular Probes, Inc.). The practical upper limit to probe length is determined by the penetratio ...
... (ca 7 nm for a 20-mer), and a fluorochrome molecule. The physical dimensions of the fluorochrome we use, Alexa 532, have not been determined but are likely to be on the order of several nm in diameter (Molecular Probes, Inc.). The practical upper limit to probe length is determined by the penetratio ...
Compact Optical Fiber Amplifier
... A forward pumping configuration (without middle isolator) is one of the normal configurations of optical fiber amplifiers, but it has the weak point that the backward Amplified Spontaneous Emission (ASE) wastes pumping power near the input terminal of the EDF, and this behavior causes a degradation ...
... A forward pumping configuration (without middle isolator) is one of the normal configurations of optical fiber amplifiers, but it has the weak point that the backward Amplified Spontaneous Emission (ASE) wastes pumping power near the input terminal of the EDF, and this behavior causes a degradation ...
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.