PCF Based Sensor with High Sensitivity, High
... typically consists of a transparent core surrounded by cladding of lower refractive index (air holes). The light is retained inside the core based on the total internal reflection, however the internally reflected light actually penetrates, for a small distance, into the cladding region. In an evane ...
... typically consists of a transparent core surrounded by cladding of lower refractive index (air holes). The light is retained inside the core based on the total internal reflection, however the internally reflected light actually penetrates, for a small distance, into the cladding region. In an evane ...
Document
... Gain Characteristics of EDFA Gain (amplifier) - is the ratio in decibels of input power to output power. Gain at 1560 nm is some 3 dB higher than gain at 1540 nm (this is twice as much). In most applications (if there is only a single channel or if there are only a few amplifiers in the circuit) th ...
... Gain Characteristics of EDFA Gain (amplifier) - is the ratio in decibels of input power to output power. Gain at 1560 nm is some 3 dB higher than gain at 1540 nm (this is twice as much). In most applications (if there is only a single channel or if there are only a few amplifiers in the circuit) th ...
Phase-conjugated twin waves for communication
... the PCTW-based nonlinearity cancellation works, in Fig. 1c we show the simulated evolutions of the E-field distortions of the twin waves Ex and Ey during nonlinear propagation. A detailed description of the simulation method is presented in the Methods. Evidently, the nonlinear distortion dEx on Ex i ...
... the PCTW-based nonlinearity cancellation works, in Fig. 1c we show the simulated evolutions of the E-field distortions of the twin waves Ex and Ey during nonlinear propagation. A detailed description of the simulation method is presented in the Methods. Evidently, the nonlinear distortion dEx on Ex i ...
Coupling Ratio and Power Transmission to Core and Cladding
... The fusion process will change the structures and geometries of coupled fibers at the coupling region. These changes are complicated as the refractive indices and fiber geometries are made uncertain due to the slightly unstable torch flame and coupling ratio effect [5,6]. However, they tend to decr ...
... The fusion process will change the structures and geometries of coupled fibers at the coupling region. These changes are complicated as the refractive indices and fiber geometries are made uncertain due to the slightly unstable torch flame and coupling ratio effect [5,6]. However, they tend to decr ...
Extraordinary optical transmission through subwavelength holes Dye-Zone A. Chen
... Finite-difference time-domain simulations also predict the enhancement and correlate well with the experimental data. Both experimental and theoretical results show a fivefold increase in transmission through a perforated film versus a solid film. © 2007 American Institute of Physics. 关DOI: 10.1063/ ...
... Finite-difference time-domain simulations also predict the enhancement and correlate well with the experimental data. Both experimental and theoretical results show a fivefold increase in transmission through a perforated film versus a solid film. © 2007 American Institute of Physics. 关DOI: 10.1063/ ...
Instruments for Optical Spectroscopy-Web
... If only few wavelengths are involved, periodicity (beat) is obvious when waves go in and out of phase. If broadband light source, pattern of beats hard to determine, signal power decreases with time as closely spaced wavelengths get more and more out of phase. Frequency domain spectra and time domai ...
... If only few wavelengths are involved, periodicity (beat) is obvious when waves go in and out of phase. If broadband light source, pattern of beats hard to determine, signal power decreases with time as closely spaced wavelengths get more and more out of phase. Frequency domain spectra and time domai ...
Optical Isolation Can Occur In Linear And Passive Silicon
... On-chip optical isolators play a key role in optical communications and computing based on silicon integrated photonic structures. Recently there have raised great attentions and hot controversies upon isolation of light via linear and passive photonic structures. Here we analyze the optical isolati ...
... On-chip optical isolators play a key role in optical communications and computing based on silicon integrated photonic structures. Recently there have raised great attentions and hot controversies upon isolation of light via linear and passive photonic structures. Here we analyze the optical isolati ...
Fast-Fourier-domain delay line for in vivo optical coherence
... achievable delay. A further increase in scan rate can be achieved with a continuously rotating device. A spinning cube delay line8,9 uses internal reflections from the cube surfaces to produce angle-dependent group delay. Although scan rates up to 28.6 kHz have been reported,9 these systems suffer ...
... achievable delay. A further increase in scan rate can be achieved with a continuously rotating device. A spinning cube delay line8,9 uses internal reflections from the cube surfaces to produce angle-dependent group delay. Although scan rates up to 28.6 kHz have been reported,9 these systems suffer ...
Dynamic measurements using a Fizeau
... Dynamic metrology based on instantaneous single-frame exposure time requires a higher energy light source to reach comparable camera signal-to-noise levels as phase-scanning techniques, where interferograms are sampled over longer exposure times and multiple frames. The higher optical power require ...
... Dynamic metrology based on instantaneous single-frame exposure time requires a higher energy light source to reach comparable camera signal-to-noise levels as phase-scanning techniques, where interferograms are sampled over longer exposure times and multiple frames. The higher optical power require ...
(III) Laser Detection of Wave Motion in Solids
... the refractive index of the material. The refractive index of a material is the propagation velocity of electromagnetic waves in vacuum divided by that in the material, and is greater than or equal to 1.0. The refractive index of air at atmospheric pressure is very close to 1.0, so we can assume th ...
... the refractive index of the material. The refractive index of a material is the propagation velocity of electromagnetic waves in vacuum divided by that in the material, and is greater than or equal to 1.0. The refractive index of air at atmospheric pressure is very close to 1.0, so we can assume th ...
Pulsed-source and swept-source spectral-domain optical coherence tomography with reduced motion artifacts
... of the camera readout data. This imaging technique has recently gone through rapid technical development to demonstrate high quality imaging of biological samples with fast image acquisition time, an order of magnitude faster than state-of-the-art time-domain OCT systems.6-11 The recent advancement ...
... of the camera readout data. This imaging technique has recently gone through rapid technical development to demonstrate high quality imaging of biological samples with fast image acquisition time, an order of magnitude faster than state-of-the-art time-domain OCT systems.6-11 The recent advancement ...
Organic Nonlinear Optic Devices
... Nonlinear Fabry-Perot Interferometer Frequency Converter Optical Limiter Integrated Optics Conclusions ...
... Nonlinear Fabry-Perot Interferometer Frequency Converter Optical Limiter Integrated Optics Conclusions ...
Optical Springs at the 40m
... Arm cavity signals are extracted from beat between carrier and f1 or f2. Central part (Michelson, PRC, SRC) signals are extracted from beat between f1 and f2, not including arm cavity information. Optical Springs at the 40m ...
... Arm cavity signals are extracted from beat between carrier and f1 or f2. Central part (Michelson, PRC, SRC) signals are extracted from beat between f1 and f2, not including arm cavity information. Optical Springs at the 40m ...
Chapter 7 Optical lattices and experiment design
... a small frequency difference, δ, between the two laser beams, the position of the potential wells will move in time (with velocity v = δ/k, where k is the wavevector of the laser). In practise this could be implemented with an acoustooptical modulator (AOM). A second method is to vary the phase of o ...
... a small frequency difference, δ, between the two laser beams, the position of the potential wells will move in time (with velocity v = δ/k, where k is the wavevector of the laser). In practise this could be implemented with an acoustooptical modulator (AOM). A second method is to vary the phase of o ...
Guiding and Confining Light in Void Nanostructure
... presents optical properties similar to those of the TM eigenmode in the studied slab-based slot-waveguide structure. We numerically simulated the quasi-TE eigenmode of the slot-waveguide structure shown in Fig. 1(b) using a full-vectorial finite difference mode solver [12]. Non-uniform grid mesh is ...
... presents optical properties similar to those of the TM eigenmode in the studied slab-based slot-waveguide structure. We numerically simulated the quasi-TE eigenmode of the slot-waveguide structure shown in Fig. 1(b) using a full-vectorial finite difference mode solver [12]. Non-uniform grid mesh is ...
Chapter 9 Semiconductor Optical Amplifiers
... If the length of the waveguide is L then periodic boundary conditions give L 2 different longitudinal modes in an interval . From previous Chapters we know how to calculate the spontaneous emission rate into a single radiation mode. The expression for the spontaneous emission rate has the ...
... If the length of the waveguide is L then periodic boundary conditions give L 2 different longitudinal modes in an interval . From previous Chapters we know how to calculate the spontaneous emission rate into a single radiation mode. The expression for the spontaneous emission rate has the ...
Bragg waveguides with low-index liquid cores
... Binary layered structures are attracting increasing interest for applications in which their resonant response or efficient reflection abilities can be exploited. They are the most simple multilayer optical structures. By using a binary layered structure as a waveguide cladding, first discussed in d ...
... Binary layered structures are attracting increasing interest for applications in which their resonant response or efficient reflection abilities can be exploited. They are the most simple multilayer optical structures. By using a binary layered structure as a waveguide cladding, first discussed in d ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... form of attenuation and turbulent channel. The atmospheric attenuation is mainly caused by scattering. The atmospheric attenuation affects the overall quality of the system. In this paper the effects of scattering on the terrestrial FSO which have a link length of 2 km, is simulated using OptiSystem ...
... form of attenuation and turbulent channel. The atmospheric attenuation is mainly caused by scattering. The atmospheric attenuation affects the overall quality of the system. In this paper the effects of scattering on the terrestrial FSO which have a link length of 2 km, is simulated using OptiSystem ...
High-speed spectral-domain optical coherence tomography at 1.3
... doublet lens (focal length: 150 mm) onto an InGaAs CCD array line scan camera (Sensors Unlimited Inc., SU512LX). The total photon-to-electron conversion efficiency of the spectrometer was measured to be 0.8 and 0.3 for s- and p-plane polarization states, respectively. The conversion efficiency inclu ...
... doublet lens (focal length: 150 mm) onto an InGaAs CCD array line scan camera (Sensors Unlimited Inc., SU512LX). The total photon-to-electron conversion efficiency of the spectrometer was measured to be 0.8 and 0.3 for s- and p-plane polarization states, respectively. The conversion efficiency inclu ...
Demonstrating the style for the Journal of Physics: Conference series
... pulse, and therefore represents a measure of the intensity of the --polarised photoluminescence, since the rate of the - photon emission is ~ 22/r. We demonstrate numerically the appearance of Rabi oscillations at sufficiently high excitation intensities above threshold that suppress the elect ...
... pulse, and therefore represents a measure of the intensity of the --polarised photoluminescence, since the rate of the - photon emission is ~ 22/r. We demonstrate numerically the appearance of Rabi oscillations at sufficiently high excitation intensities above threshold that suppress the elect ...
Measured limits to contamination of optical
... where l is the length of the cavity, c is the speed of light, and Lcav is the 1small2 cavity round-trip loss including absorption and scattering as well as transmission. The light trigger level was set so that only the storage time of the TEM00 mode was measured. Ten such measurements 1each represen ...
... where l is the length of the cavity, c is the speed of light, and Lcav is the 1small2 cavity round-trip loss including absorption and scattering as well as transmission. The light trigger level was set so that only the storage time of the TEM00 mode was measured. Ten such measurements 1each represen ...
Vacuum-ultraviolet to infrared supercontinuum in hydrogen
... 2.5 μJ. At this pressure the zero-dispersion point is at 446 nm [Fig. 1(e)]. The supercontinuum spans from 124 to beyond 1200 nm—measurements with a mid-IR spectrometer (with uncalibrated absolute response) showed a strong signal from 1000 to 1200 nm [inset of Fig. 1(f)]. To check that the supercont ...
... 2.5 μJ. At this pressure the zero-dispersion point is at 446 nm [Fig. 1(e)]. The supercontinuum spans from 124 to beyond 1200 nm—measurements with a mid-IR spectrometer (with uncalibrated absolute response) showed a strong signal from 1000 to 1200 nm [inset of Fig. 1(f)]. To check that the supercont ...
Free-space - University of California, San Diego
... mated to a FSOI layer that is assembled separately. Design considerations, packaging approaches, and testing results are provided. In many MCM applications, data distribution from and to the memory chips that may reside on a MCM or on an adjacent board can become one of the major bottlenecks in high ...
... mated to a FSOI layer that is assembled separately. Design considerations, packaging approaches, and testing results are provided. In many MCM applications, data distribution from and to the memory chips that may reside on a MCM or on an adjacent board can become one of the major bottlenecks in high ...
LiNbO3 high-Speed optical FSK modulator
... Introduction: In previous works, frequency-shift-keying (FSK) modulation for coherent optical systems was investigated to obtain enhanced receiver sensitivity [ I , 2]. Recently, optical packet systems using FSK technique have received considerable attention. FSK is an effective scheme for optical l ...
... Introduction: In previous works, frequency-shift-keying (FSK) modulation for coherent optical systems was investigated to obtain enhanced receiver sensitivity [ I , 2]. Recently, optical packet systems using FSK technique have received considerable attention. FSK is an effective scheme for optical l ...
A Fast Optical Propagation Technique for Modeling
... theory does not always apply. It can be shown, however, that the resolution of the aperture and observation meshing must be λ/2 or smaller [3]. For many simulation systems without large degrees of tilt and hard diffractive apertures, the resolution can be coarser. In systems with high tilts, the res ...
... theory does not always apply. It can be shown, however, that the resolution of the aperture and observation meshing must be λ/2 or smaller [3]. For many simulation systems without large degrees of tilt and hard diffractive apertures, the resolution can be coarser. In systems with high tilts, the res ...
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.