Analysis of Tilted Grating Etalon for DWDM Demultiplexer Sommart Sang-Ngern, Non-member
... outside etalon is 1, the angle between z axis and z axis is 0.645 rad, internal angle is 0.2 degree and coupling coefficient for period grating is 0.2/L. Fig.7 shows the transmission spectral of TGE as a function of wavelength in the range of 1350-1600 nm when the incident angle is varied 0-50 degre ...
... outside etalon is 1, the angle between z axis and z axis is 0.645 rad, internal angle is 0.2 degree and coupling coefficient for period grating is 0.2/L. Fig.7 shows the transmission spectral of TGE as a function of wavelength in the range of 1350-1600 nm when the incident angle is varied 0-50 degre ...
Evaluation of the scintillation loss for optical
... Therefore, the dependence of the loss ᐉsc on 具P典 is given by the function g0 and more precisely on the ratio g0共具P典p兲 / g0共具P典兲. The loss ᐉsc should then be found numerically. Assuming the common OOK modulation, the equivalent of the g0 function has been expressed in several publications 共See, for e ...
... Therefore, the dependence of the loss ᐉsc on 具P典 is given by the function g0 and more precisely on the ratio g0共具P典p兲 / g0共具P典兲. The loss ᐉsc should then be found numerically. Assuming the common OOK modulation, the equivalent of the g0 function has been expressed in several publications 共See, for e ...
Advance Program Sunday, October 12, 2014 Sunday Session
... This paper investigates the feasibility of moderate data rate visible light communication using commercial RGB-LEDs as both emitters and detectors. Data rates of 155 Mb/s (uni-directional) and 110 Mb/s (aggregate bi-directional) were demonstrated. MG1.4 9:15 AM - 9:30 AM Performance of Time-Bandwid ...
... This paper investigates the feasibility of moderate data rate visible light communication using commercial RGB-LEDs as both emitters and detectors. Data rates of 155 Mb/s (uni-directional) and 110 Mb/s (aggregate bi-directional) were demonstrated. MG1.4 9:15 AM - 9:30 AM Performance of Time-Bandwid ...
AGS1927 Technical Datasheet
... The multifluorescent beads can be used for the determination of the optical transfer function of a confocal setup. The multifluorescent beads are ideal spheres with a diameter given in Fig.2. A stack of confocal images through several beads has to be recorded. Then individual beads from this stack a ...
... The multifluorescent beads can be used for the determination of the optical transfer function of a confocal setup. The multifluorescent beads are ideal spheres with a diameter given in Fig.2. A stack of confocal images through several beads has to be recorded. Then individual beads from this stack a ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
... eV) and its transparency at wavelengths (1270 nm to 1625 nm) typically favors for optical communication. It allows the integration of optical devices on silicon-on-insulator (SOI) wafers [1] which provides the route and manipulates the light. The present computers use copper wires to connect differe ...
... eV) and its transparency at wavelengths (1270 nm to 1625 nm) typically favors for optical communication. It allows the integration of optical devices on silicon-on-insulator (SOI) wafers [1] which provides the route and manipulates the light. The present computers use copper wires to connect differe ...
Infrared fibers
... The second family in Fig. 1 [Figs. 1(d)–1(f)] comprises recently developed hybrid IR fibers where materials from heterogeneous families of materials are combined: chalcogenide glasses with a polymer [Fig. 1(d)], chalcogenide and silica glasses [Fig. 1(e)], and chalcogenide and tellurite glasses [Fi ...
... The second family in Fig. 1 [Figs. 1(d)–1(f)] comprises recently developed hybrid IR fibers where materials from heterogeneous families of materials are combined: chalcogenide glasses with a polymer [Fig. 1(d)], chalcogenide and silica glasses [Fig. 1(e)], and chalcogenide and tellurite glasses [Fi ...
Fast Algorithms for Estimating Aerosol Optical Depth and Correcting Thematic Mapper Imagery
... of the radiative transfer equation [5], which is an integro-di erential equation for which no analytical solution is available. There are several approaches to obtain practical solutions. The rst is to use a numerical iterative approach, such as the discrete-ordinate algorithm [10], and the Gauss- ...
... of the radiative transfer equation [5], which is an integro-di erential equation for which no analytical solution is available. There are several approaches to obtain practical solutions. The rst is to use a numerical iterative approach, such as the discrete-ordinate algorithm [10], and the Gauss- ...
conclusion
... applications. Most elements modulate or the phase of the incoming light or its amplitude, but not both. The phase modulation DOE is the most popular because its high diffraction efficiency. However, the phase-only limitation may reduce the freedom in the element design, increasing the design complex ...
... applications. Most elements modulate or the phase of the incoming light or its amplitude, but not both. The phase modulation DOE is the most popular because its high diffraction efficiency. However, the phase-only limitation may reduce the freedom in the element design, increasing the design complex ...
1. Introduction - About the journal
... Fig. 5. Probability of fade vs. link distance calculated for both the gamma-gamma and the lognormal intensity distributions. ...
... Fig. 5. Probability of fade vs. link distance calculated for both the gamma-gamma and the lognormal intensity distributions. ...
Get PDF - OSA Publishing
... shortcomings. Most of them are bulky, complex, non-tunable, non-transportable and they also feature very limited performances as long as the application frequency increases (e.g. frequency multiplied quartz oscillators). For more than twenty years, optics has started to prove itself as an elegant an ...
... shortcomings. Most of them are bulky, complex, non-tunable, non-transportable and they also feature very limited performances as long as the application frequency increases (e.g. frequency multiplied quartz oscillators). For more than twenty years, optics has started to prove itself as an elegant an ...
a flat high-frequency scanning micromirror - EECS: www
... scanning could enable new applications that are not practical with conventional scanning mirrors, such as raster-scanning projection video displays [1], and would significantly improve the performance of scanning mirrors in existing applications, such as laser printers. MEMS optical scanners promise ...
... scanning could enable new applications that are not practical with conventional scanning mirrors, such as raster-scanning projection video displays [1], and would significantly improve the performance of scanning mirrors in existing applications, such as laser printers. MEMS optical scanners promise ...
control of high power pulses extracted from the maximally
... describe the evolution of initially continuous waves and can be excited by a weak periodic modulation [39]. Based on the Akhmediev breather, the continuous wave supercontinuum generation from modulation instability and Fermi-Pasta-Ulam (FPU) recurrence has been examined [40–42]. In contrast to the A ...
... describe the evolution of initially continuous waves and can be excited by a weak periodic modulation [39]. Based on the Akhmediev breather, the continuous wave supercontinuum generation from modulation instability and Fermi-Pasta-Ulam (FPU) recurrence has been examined [40–42]. In contrast to the A ...
Imaging optical singularities; Understanding the duality of C-points and optical vortices
... Optical vortices are ubiquitous in random wave fields.1 Their dark core implies a circulating phase in the field surrounding them. Several classes of paraxial beams can propagate carrying optical vortices. They are characterized by the topological charge ! of the vortex, which represents the number ...
... Optical vortices are ubiquitous in random wave fields.1 Their dark core implies a circulating phase in the field surrounding them. Several classes of paraxial beams can propagate carrying optical vortices. They are characterized by the topological charge ! of the vortex, which represents the number ...
Paper
... mitigated by producing mF 苷 0 atoms, quadratic Zeeman shifts may preclude precision experiments on such pulses. Magnetic trapping also imposes limitations on the study of Bose-Einstein condensates, because only the weak-field seeking atomic states are confined. Since the atomic ground state is alway ...
... mitigated by producing mF 苷 0 atoms, quadratic Zeeman shifts may preclude precision experiments on such pulses. Magnetic trapping also imposes limitations on the study of Bose-Einstein condensates, because only the weak-field seeking atomic states are confined. Since the atomic ground state is alway ...
Generation of lattices of optical vortices
... Optical vortices are intriguing objects that attract much attention1 and display fascinating properties with possible applications in the optical transmission of information and in guiding and trapping of particles. Vortices can be generated in several different controllable ways in lasers with larg ...
... Optical vortices are intriguing objects that attract much attention1 and display fascinating properties with possible applications in the optical transmission of information and in guiding and trapping of particles. Vortices can be generated in several different controllable ways in lasers with larg ...
Optical Basicity and Polarizability of Nd3+
... upon exposure to intense light beams, polarizability is the most important properties which govern the nonlinearity response of the glass. That is why knowledge of the state of polarization of ions in different crystalline and amorphous materials is of significant interest. The aim of the present st ...
... upon exposure to intense light beams, polarizability is the most important properties which govern the nonlinearity response of the glass. That is why knowledge of the state of polarization of ions in different crystalline and amorphous materials is of significant interest. The aim of the present st ...
Effective Wavelength Scaling for Optical Antennas
... In antenna theory, antenna parameters are directly related to the wavelength of incident radiation, but this scaling fails at optical frequencies where metals behave as strongly coupled plasmas. In this Letter we show that antenna designs can be transferred to the optical frequency regime by repla ...
... In antenna theory, antenna parameters are directly related to the wavelength of incident radiation, but this scaling fails at optical frequencies where metals behave as strongly coupled plasmas. In this Letter we show that antenna designs can be transferred to the optical frequency regime by repla ...
optical flow using color information: preliminary
... information is available. Using color prevents loss of information due to isoluminance. On the other hand, a bigger amount of data must be processed. A color image corresponds to a multi-channel image where each pixel is associated to more than one value that represents color information and brightn ...
... information is available. Using color prevents loss of information due to isoluminance. On the other hand, a bigger amount of data must be processed. A color image corresponds to a multi-channel image where each pixel is associated to more than one value that represents color information and brightn ...
On the Limits of Communication over Optical On-Off Keying Channels with Crosstalk
... with 2-D crosstalk, where the input and output are two arrays X , Y ∈ {0, 1}m×m with m large enough. In [13], Chen and Siegel introduced a method to compute upper bounds on the symmetric information rate of 2-D finite-state inter-symbol interference (ISI) channels, which appear, e.g., in magnetic an ...
... with 2-D crosstalk, where the input and output are two arrays X , Y ∈ {0, 1}m×m with m large enough. In [13], Chen and Siegel introduced a method to compute upper bounds on the symmetric information rate of 2-D finite-state inter-symbol interference (ISI) channels, which appear, e.g., in magnetic an ...
Frequency comb generation by CW laser injection
... Received 3 Jul 2012; accepted 12 Aug 2012; published 4 Sep 2012 ...
... Received 3 Jul 2012; accepted 12 Aug 2012; published 4 Sep 2012 ...
MS Word 97 - Vadim Makarov
... We live in the world of information. Over the last century it became obvious that nothing is as valuable as information. In the last several decades with the growth of Internet there was a big breakthrough in the field of information interchange. A huge amounts of data is being sent every day. It is ...
... We live in the world of information. Over the last century it became obvious that nothing is as valuable as information. In the last several decades with the growth of Internet there was a big breakthrough in the field of information interchange. A huge amounts of data is being sent every day. It is ...
Strong Dispersive and Nonlinear Optical Properties of
... described earlier, enhanced self-phase modulation can be used to propagate SCISSOR solitons. The enhancement can also be used to construct compact all-optical switches operating with greatly reduced switching thresholds. As with many other optical properties, however, an all-pass resonator enhances ...
... described earlier, enhanced self-phase modulation can be used to propagate SCISSOR solitons. The enhancement can also be used to construct compact all-optical switches operating with greatly reduced switching thresholds. As with many other optical properties, however, an all-pass resonator enhances ...
Variability in ultraviolet total optical depth during the Southern
... 1997 Southern California Ozone Study, cosine weighted solar irradiance was measured continuously at seven UV wavelengths (300, 306, 312, 318, 326, 333 and 368 nm) at two sites during the period 1 July to 1 November 1997. The "rst site was at Riverside (260 m a.s.l.) in the Los Angeles metropolitan a ...
... 1997 Southern California Ozone Study, cosine weighted solar irradiance was measured continuously at seven UV wavelengths (300, 306, 312, 318, 326, 333 and 368 nm) at two sites during the period 1 July to 1 November 1997. The "rst site was at Riverside (260 m a.s.l.) in the Los Angeles metropolitan a ...
Light amplificated by stimulated emission of radiation
... intensities of the order of the saturation intensity of the laser transition, but fourlevel lasers can also be operated with lower pump intensities. Depending on the geometry, there can be more or less stringent requirements on the pump beam quality. This applies mostly to end-pumped lasers. In some ...
... intensities of the order of the saturation intensity of the laser transition, but fourlevel lasers can also be operated with lower pump intensities. Depending on the geometry, there can be more or less stringent requirements on the pump beam quality. This applies mostly to end-pumped lasers. In some ...
Strong enhancement of light extraction efficiency in GaInAsP 2D
... surface recombination at sidewalls. In contrast, the light extraction efficiency evaluated from the measured photoluminescence intensity, and the internal efficiency was more than ten times that for a planar wafer. This was thought to be due to the expanded escape cone of internal light by the low e ...
... surface recombination at sidewalls. In contrast, the light extraction efficiency evaluated from the measured photoluminescence intensity, and the internal efficiency was more than ten times that for a planar wafer. This was thought to be due to the expanded escape cone of internal light by the low e ...
Fiber-optic communication
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information. First developed in the 1970s, fiber-optic communication systems have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed world. Optical fiber is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals. Researchers at Bell Labs have reached internet speeds of over 100 petabit×kilometer per second using fiber-optic communication.The process of communicating using fiber-optics involves the following basic steps: Creating the optical signal involving the use of a transmitter, relaying the signal along the fiber, ensuring that the signal does not become too distorted or weak, receiving the optical signal, and converting it into an electrical signal.