A Laser Coupler for DVD/CD Playback
... by variations in disc birefringence, so it can produce a DVD/CD-drive with higher playability. Figure 10 shows the signal-detection functions of the 2BLC. The playback signal and other systems can be switched between DVD and CD modes. While the 2BLC uses differential spotsize detection as the focus- ...
... by variations in disc birefringence, so it can produce a DVD/CD-drive with higher playability. Figure 10 shows the signal-detection functions of the 2BLC. The playback signal and other systems can be switched between DVD and CD modes. While the 2BLC uses differential spotsize detection as the focus- ...
Roger`s Descriptions
... This course introduces the concepts of continuous and discrete linear systems to imaging systems. Emphasis is placed on understanding the underlying mathematical principles and their connection to imaging applications. The perspective of a mathematical model of an imaging system is introduced at the ...
... This course introduces the concepts of continuous and discrete linear systems to imaging systems. Emphasis is placed on understanding the underlying mathematical principles and their connection to imaging applications. The perspective of a mathematical model of an imaging system is introduced at the ...
paper
... result in a rotation of the plane of polarization due to the elasto-optic effect. ' Also, we found that the fiber showed a negligibly small linear birefringence as lang as the fiber was wound smoothly on a large enough diameter. s In order to form a closed path in momentum or k space, ' the propagat ...
... result in a rotation of the plane of polarization due to the elasto-optic effect. ' Also, we found that the fiber showed a negligibly small linear birefringence as lang as the fiber was wound smoothly on a large enough diameter. s In order to form a closed path in momentum or k space, ' the propagat ...
16-level differential phase shift keying (D16PSK)
... Differential binary phase shift keying (DBPSK) has attracted a lot of interest lately for long haul wavelength division multiplexing systems for its high tolerance towards fibre nonlinearities and the 3 dB receiver sensitivity improvement compared to on-off keying systems [1]. However, binary modula ...
... Differential binary phase shift keying (DBPSK) has attracted a lot of interest lately for long haul wavelength division multiplexing systems for its high tolerance towards fibre nonlinearities and the 3 dB receiver sensitivity improvement compared to on-off keying systems [1]. However, binary modula ...
S.72-227 Digital Communication Systems
... – light collected from the other surface, other attached to a heat sink – no waveguiding – light coupling to multimode fibers easy Edge emitting LEDs: (ELED) 60 80 nm – like stripe geometry lasers but no optical feedback – easy coupling into multimode and single mode fibers Superluminescent L ...
... – light collected from the other surface, other attached to a heat sink – no waveguiding – light coupling to multimode fibers easy Edge emitting LEDs: (ELED) 60 80 nm – like stripe geometry lasers but no optical feedback – easy coupling into multimode and single mode fibers Superluminescent L ...
Get PDF - OSA Publishing
... proposed and numerically investigated. Distinct from previously studied absorbers, it could absorb light incident from both sides of the surface through an ultrathin three-layer metal-insulator-metal nanostructure. Patterned metal particles are adopted instead of metal films in this absorber. It sho ...
... proposed and numerically investigated. Distinct from previously studied absorbers, it could absorb light incident from both sides of the surface through an ultrathin three-layer metal-insulator-metal nanostructure. Patterned metal particles are adopted instead of metal films in this absorber. It sho ...
Effect of ABCD transformations on beam paraxiality
... have to be dimensionless, while B has to have units of (length)2 and C of (length)−2 . If we have a ABCD system as a cascade of n optical elements (e.g. a sequence of spaces and lenses) whose single ray-transfer matrix are T1 , T2 , ... , Tn , it is well-known that such multi-element system is equiv ...
... have to be dimensionless, while B has to have units of (length)2 and C of (length)−2 . If we have a ABCD system as a cascade of n optical elements (e.g. a sequence of spaces and lenses) whose single ray-transfer matrix are T1 , T2 , ... , Tn , it is well-known that such multi-element system is equiv ...
Performance of synchronous optical receivers using atmospheric
... downconverted heterodyne or homodyne power is maximized when the spatial field of the received signal matches that of the local oscillator. Any mismatch of the amplitudes and phases of the two fields will result in a loss in downconverted power. Adaptive compensation of atmospheric wave-front phase ...
... downconverted heterodyne or homodyne power is maximized when the spatial field of the received signal matches that of the local oscillator. Any mismatch of the amplitudes and phases of the two fields will result in a loss in downconverted power. Adaptive compensation of atmospheric wave-front phase ...
Doc - Department of Physics
... motion to the medium through which it propagates. Many examples of waves and oscillations seen in our daily lives will be given. The concepts such as displacement, velocity, acceleration, and energy are used to describe mechanical waves. The first part of the course begins with a brief study of peri ...
... motion to the medium through which it propagates. Many examples of waves and oscillations seen in our daily lives will be given. The concepts such as displacement, velocity, acceleration, and energy are used to describe mechanical waves. The first part of the course begins with a brief study of peri ...
Image reconstruction in diffuse optical tomography based on
... simulations which are based on probabilistic models can produce accurate results, they tend to be computationally slow to be of clinical use. Alternatively, numerical approximations to the RTE can be used whereby light propagation is estimated through well established particle transport models based ...
... simulations which are based on probabilistic models can produce accurate results, they tend to be computationally slow to be of clinical use. Alternatively, numerical approximations to the RTE can be used whereby light propagation is estimated through well established particle transport models based ...
of optical-fiber dispersion
... It is well known that chirped (aperiodic) refractiveindex Bragg gratings can be used for compensating for the dispersion of optical fiber waveguides.' When used in reflection mode (in contrast to transmission mode), such Bragg gratings exhibit large dispersion. As well, the sign of the dispersion in ...
... It is well known that chirped (aperiodic) refractiveindex Bragg gratings can be used for compensating for the dispersion of optical fiber waveguides.' When used in reflection mode (in contrast to transmission mode), such Bragg gratings exhibit large dispersion. As well, the sign of the dispersion in ...
Optical Properties of Lithium - Zinc – Boro- MolybdateGlass
... regions and impart color to the glass. Doped ions in crystalline or glassy matrices often give luminescence emission on returning from an excited state to the ground state. These transitions are of practical interest, at the same time, the energy intensity of the absorption and luminescence emission ...
... regions and impart color to the glass. Doped ions in crystalline or glassy matrices often give luminescence emission on returning from an excited state to the ground state. These transitions are of practical interest, at the same time, the energy intensity of the absorption and luminescence emission ...
Catching the wave - Selected Topics in Quantum Electronics, IEEE
... and the EM mode. This was my first introduction to the coupled-mode point of view (which I would apply and reapply in my subsequent research) and was the topic of my first paper [2]. An immediate and key consequence of the coupled-mode theory was that a prerequisite for power exchange between intera ...
... and the EM mode. This was my first introduction to the coupled-mode point of view (which I would apply and reapply in my subsequent research) and was the topic of my first paper [2]. An immediate and key consequence of the coupled-mode theory was that a prerequisite for power exchange between intera ...
Full-Text PDF
... have many advantages, such as high photoelectric conversion efficiency, fine radiation resistance and good performance at high temperatures, etc. [5,6]. As science and technology develops, people always expect to broaden the applications of GaAs. Doping other elements is one of the most commonly use ...
... have many advantages, such as high photoelectric conversion efficiency, fine radiation resistance and good performance at high temperatures, etc. [5,6]. As science and technology develops, people always expect to broaden the applications of GaAs. Doping other elements is one of the most commonly use ...
RESOLUTION OF ICCD CAMERAS
... Whereas the first target (a) shown in figure 2 allowed to directly calculate the CTF, the second one (b) gave the LSF and PSF profiles from which the MTF could be deduced by using the Fourier transform (equation (1)) ...
... Whereas the first target (a) shown in figure 2 allowed to directly calculate the CTF, the second one (b) gave the LSF and PSF profiles from which the MTF could be deduced by using the Fourier transform (equation (1)) ...
Capacity of coherent free-space optical links using
... The downconverted heterodyne or homodyne power is maximized when the spatial field of the received signal matches that of the local oscillator. Any mismatch between the amplitudes and phases of the two fields will result in a reduction of the downconverted power, i.e., fading. In the case of cohere ...
... The downconverted heterodyne or homodyne power is maximized when the spatial field of the received signal matches that of the local oscillator. Any mismatch between the amplitudes and phases of the two fields will result in a reduction of the downconverted power, i.e., fading. In the case of cohere ...
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 ...
Different Types of Dispersions in an Optical Fiber
... Graded index fibers have core diameter of 50, 62.5 or 85 m and a cladding diameter of 125 m. The fiber is used in applications requiring a wide bandwidth and low model dispersion. The number of modes in the fiber is about half that of step index fiber having the same diameter. Single mode step ind ...
... Graded index fibers have core diameter of 50, 62.5 or 85 m and a cladding diameter of 125 m. The fiber is used in applications requiring a wide bandwidth and low model dispersion. The number of modes in the fiber is about half that of step index fiber having the same diameter. Single mode step ind ...
Direct Imaging of Transient Interference in a Optical Microscopy
... for the transverse intensity plots in Fig. 4. Note that x and z scales are different. ...
... for the transverse intensity plots in Fig. 4. Note that x and z scales are different. ...
High-speed addressable confocal microscopy for functional imaging
... axis galvanometer-driven mirror at its resonance frequency,3 or by replacing it with a rotating polygon mirror.4 These systems are successful at increasing the overall frame rate, but they remain too slow to measure fast electrical signals in cells. Moreover, this technique increases the frame rate ...
... axis galvanometer-driven mirror at its resonance frequency,3 or by replacing it with a rotating polygon mirror.4 These systems are successful at increasing the overall frame rate, but they remain too slow to measure fast electrical signals in cells. Moreover, this technique increases the frame rate ...
