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We fabricated compact fiber-optic matched filters by directly depositing metal thin films on fiber delay-line ends. Average reflectance of the metal film was measured to be 88% in the wavelength region of 1400-1600 nm. Detection of 10 Gb/s, 8-b optical packet addresses has been successfully demonstrated using the matched filters composed of four metal-coated fiber delay lines and three fused biconically tapered fiber couplers. Experimental results on correlation outputs of the matched filters showed an excellent agreement with those of theoretical analyzes.
Date of Publication: July 1996