Abstract:
An athermal package (500) for fiber photonic devices includes a ferrule to attach the optical fiber(200) to the package. The ferrule has an opening to receive the optical fiber. The ferrule is collapsed to attach the optical fiber to the athermal package. Alternatively, the athermal package (500) uses adhesive bonds (503, 504) disposed in pockets (506, 507) of the package. The pockets have a narrow end and a wide end, with the narrow ends facing each other. The adhesive bonds are disposed in the pockets in contact the narrow ends of the pockets but not with the wide ends. The narrow ends physically confine the adhesive bonds so that if the bonds expand or contract due to environmental conditions (or the curing process), the adhesive either expands or contracts near the wide ends of the pockets. This allows the strain on the optical fiber segment between the bonds to remain substantially constant.
Abstract:
An athermal package for fiber photonic devices includes at least two bonding regions at each end of the optical fiber (200) containing the photonic device. At each end of the optical fiber (200), the bonding region nearest the photonic device (i.e., the outer bonding region) has a width that is less than that of the other bonding region (i.e., the outer bonding region). The smaller widths of the inner bonding regions allow for relatively precise control of the positions on the optical fiber that the inner bonding regions are attached. The larger widths of the outer bonding regions help provide reliable attachments.