Cidra Corporation

Jon T Kringlebotn

Alan D Kersey

Martin A Putnam

Mark R Fernald

Michael A Davis

Timothy J Bailey

Paul Eric Sanders

James M Sullivan

Robert N Brucato

Matthew B Miller

A compression-tuned Bragg grating-based laser includes a pair of optical grating elements wherein at least one of the grating elements is tunable by a compression device The grating elements may include either an optical fiber having at least one Bragg grating impressed therein encased within and fused to at least a portion of a glass capillary tube or a large diameter waveguide grating element having a core and a wide cladding. The tunable grating element(s) are axially compressed, which causes a shift in the reflection wavelength of the gratings without buckling the element. The shape of the element may be other geometries (e.g., a &ldquo;dogbone&rdquo; shape) and/or more than one grating or pair of gratings may be used and more than one fiber or core may be used. A gain element, such as Erbium doped fiber, is optical disposed between the grating elements to provide the lasing cavity.

Bragg grating-based laser

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Tondheim, Norway

Jon T Kringlebotn