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Dynamic acousto-optic photopolarimeter/ spectrophotopolarimeter
(Society of Photo-Optical Instrumentation Engineers (SPIE) - Optical Engineering, 1999-07)
We propose a novel technique for a new division-of-amplitude
photopolarimeter capable of complete measurement of the state of polarization
of light, as determined by the four Stokes parameters. This
photopolarimeter ...
Spectrophotopolarimeter based on multiple reflections in a coated dielectric slab
(Elsevier - Thin solid films, 1998-02)
A division-of-amplitude photopolarimeter is described that uses multiple reflections inside a coated dielectric slab at
oblique incidence. The first four parallel reflected beams pass through suitably oriented, but fixed, ...
Fractional correlations based on the modified fractional order Fourier transform
(Society of Photo-Optical Instrumentation Engineers (SPIE) - Optical Engineering, 1998-01)
Based on the modified fractional order Fourier transform
(MFROFT), we introduce a modified fractional correlation operation
(MFCO). We propose two systems to implement the MFCO experimentally.
These are analyzed ...
Image deconvolution using a micro genetic algorithm
(Elsevier - Optics Communications, 1997-07-15)
Image deconvolution is addressed using a modified Genetic Algorithm for the error minimization. Numerical examples
are presented to demonstrate the algorithm’s robustness. Specifically, noise levels and various regions ...
Thin-film approximate modeling of in-core fiber gratings
(SPIE - Optical engineering, 1996-10)
Generally tilted in-core fiber gratings are modeled by an equivalent inhomogeneous optical thin film. Its reflectance spectrum is evaluated using the multilayer and optical-path approximations. The results are shown to be ...
Acousto-electro-optic demultiplexers in high data-rate optical communication systems
(Elsveier - Optics & Laser Technology, 1996-09)
Acousto-electro-optic scanners are introduced as time-division demultiplexing devices in optical fibre communication systems. These devices can time-demultiplex digital signals with multiple Gb s−1 data rates into a large ...
Hybrid optical processor for systems of nonlinear equations
(Elsevier - Optics Communications, 1996-03)
A hybrid optical processor to solve a system of nonlinear equations is presented. The proposed system has been based on the Bimodal Optical Computer (BOC). Two algorithms based on the BOC are presented and compared. One ...
Fiber-optic four-detector polarimeter
(Elsevier - Optics Communications, 1995-07-15)
A novel design for a fiber-optic four-detector polarimeter (FO-FDP) is presented. It consists of four externally induced incore fiber gratings together with four photodetectors. The device is compact, light-weight, avoids ...
Acousto-optic star couplers for routing and broadcasting in local area networks
(Wiley Periodicals - Microwave and Optical Technology Letters, 1993-10-28)
Acousto-optic deflectors are introduced to be used as star couplers that perform broadcasting and routing in local area networks. Configurations for both single-wavelength and multiwavelength broadcast-and-select networks ...
Acousto-optic wavelength division multiplexing system
(Wiley Periodicals - Microwave and Optical Technology Letters, 1992-06-05)
A novel wavelength division multiplexing/demultiplexing (WDM) system using acousto-optic Bragg cell is presented. The system is adaptable for any wavelength deviation of light sources caused by temperature changes and ...