Optical fiber heat dissipation package

A heat-dissipation package for use with an optical fiber with a heat-generating section, the optical fiber including a core which is surrounded by at least one cladding which is surrounded by at least one coating layer, the heat-generating section including the core and the at least one cladding and occupying a portion of an axial length of the optical fiber, the heat-dissipation package comprising:

• a housing including a body and a lid, the body including a central cavity and opposing ends, each end having a channel configured to receive a portion of the optical fiber;
• and
• a submount positioned in the central cavity, the submount including
• a base including an upper surface, a lower surface, two opposing end surfaces, and a groove embedded in the upper surface, the groove having a generally U-shaped cross-sectional shape, each end surface including a pedestal extending longitudinally therefrom,
• a cover including an upper surface, a lower surface, and two opposing end surfaces, the cover positioned on the upper surface of the base, each end surface including an overhang extending longitudinally therefrom,
• two fiber support blocks, one fiber support block positioned in each of the spaces created between one overhang and one corresponding pedestal, each fiber support block including a through hole and configured to receive a portion of the optical fiber in the through hole, and
• a hollow sleeve including a cylindrical inner surface and an outer surface with a first portion which has a generally U-shaped cross section and a second portion which has a generally planar cross section such that edges of the planar cross section contact an open end of the U-shaped cross section, the first portion of the outer surface of the sleeve positioned in the groove and the second portion of the outer surface of the sleeve in contact with the cover, the sleeve configured to encapsulate the heat-generating section of the optical fiber.