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Coherent optical processor for inverse filter generation
(Wiley Periodicals - Microwave and Optical Technology Letters, 2007-01-25)
A new algorithm and system architecture for inverse filter generation using a coherent iterative optical processor is presented. This processor avoids the singularity problem usually faced in inverse filter generation. The ...
Band selection in an amplified spontaneous emission source using the backward-feedback technique
(Wiley, 2005-06)
In this paper, the band-selective behavior in an amplified spontaneous emission (ASE) source of an erbium-doped silica fiber (EDF) is demonstrated. C-band operation is obtained without backward ASE feedback, whereas L-band ...
Nonsplit dual-stage EDFA operating in the C- plus L-band
(Microwave and optical technology letters, 2004-07-30)
The feasibility of a dual-stage erbium-doped fiber amplifier (EDFA) design for operation in both the C-band and the L-band is studied. The design is comprised of nonsplit single-pass amplification at both bands, thus ...
Optical Fourier and Hartley transform adaptive filters
(Microwave and optical technology letters, 2004-01-05)
Optical signal-processing architectures are presented to realize frequency-domain implementations of the classical least-mean-square (LMS) adaptive-filtering algorithm. Optical implementation of both Fourier and Hartley ...
Heterodyne detection for Fiber Bragg Grating sensors
(Elsveier - Optics & Laser Technology, 2000-07)
In this paper, we present a Fiber-Bragg-Grating-based temperature sensor. The technique employs heterodyne detection using two Fiber Bragg Gratings. One of the gratings is used as a reference (local oscillator) and the ...