Framatome Connectors Canada Inc.

Alcatel Alsthom Compagnie Generale D'electricite

Francedillaois Gonthier

Pierre Sansonetti

Isabelle Riant

Suzanne LaCroix

Fatima Bakhti

Robert G Files

An optical filter is formed by writing at least one long-period Bragg array into an optical fiber which is tapered to define two substantially adiabatic transition areas delimiting an intermediate area in which the long-period Bragg grating is written to produce codirectional coupling between two guided modes in the intermediate area at a wavelength that is a function of the period of the grating.

Filter obtained by writing a Bragg grating into an optical fiber

Multiport optical waveguide interferometer having a flat wavelength

A compact, tunable, wavelength independent, all-fiber attenuator is produced by heating a single-mode fiber to create at least one taper therein through capillarity rather than through pulling, pushing or twisting the fiber. The attenuator may be tuned to achieve the desired value of attenuation and wavelength independence by imparting a small bend to the taper. The attenuator may be a fixed value attenuator or a variable attenuator. When a fixed value attenuator is desired, the tapered and bent structure is encapsulated in an adhesive and glued onto a substrate.

Compact tunable wavelength independent all-fiber optical attenuator and

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Montreal, Canada

Francedillaois Gonthier