Abstract: A photonic device/a method of forming a photonic device comprising a length of optical fiber loaded in tension over a portion of its length, an in-fiber Bragg grating formed within the tensile loaded portion of the length of fiber, two longitudinally spaced apart supports for the fiber, longitudinally aligned channels in the supports, for receiving the fiber, a carrier in which the supports are located, and glass solder contained within the channel anchors the embedded fiber to the support, the supports being formed from a material that has a coefficient of thermal expansion greater than that of the glass solder.

Abstract: A photonic device/a method of forming a photonic device comprising a length of optical fibre [11] loaded in tension over a portion of its length, an in-fibre Bragg grating [14] formed within the tensile loaded portion of the length of fibre, two longitudinally spaced apart supports for the fibre [10], longitudinally aligned channels [19] in the supports, for receiving the fibre, a carrier [12] in which the supports are located, and glass solder [21] contained within the channel anchors the embedded fibre to the support, the supports being formed from a material that has a coefficient of thermal expansion greater than that of the glass solder.

Abstract: A method of accurately setting the center wavelength of a fiber grating fixed in a temperature compensation package, the method comprising the steps of: fixing the grating to the package and altering the size of the package in a post processing step. The altering step can comprise elongating or compressing the package so as to substantially permanently alter the size of the package.