Optical module with ceramic package
AssigneeSumitomo Electric Industries, Ltd.
InventorsToshiaki Kihara, Hiromi Nakanishi
Life of this patent
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Abstract
An optical module with an arrangement is disclosed in which the module has the LD, the TEC, and the lens with the lens carrier also mounted on the TEC. The signal light from the LD is concentrated by the lens and reflected by the mirror each assembled with the lens carrier mounted on the TEC. The TEC is mounted on the bottom metal that covers the bottom of the ceramic package, the first layer of which is widely cut to set the TEC therein. The FPC is coupled in at least two edges of the first ceramic layer left from the cut.
Claims11
An optical module optically coupled with an external optical fiber, comprising:
- a semiconductor optical device to emit signal light, said semiconductor optical device providing an optical axis substantially perpendicular with an optical axis of said external optical fiber;
- a thermo-electric cooler that mounts said semiconductor optical device thereon to control a temperature of said semiconductor optical device;
- a lens that concentrates said signal light on said external optical fiber;
- a mirror that reflects said signal light propagating along said optical axis of said semiconductor optical device toward said external optical fiber;
- a lens carrier that mounts said lens and said mirror thereon, said lens carrier including a pair of sidewalls, a slope portion and a bottom, said slope portion connecting said side walls and mounting said mirror thereon, said slope portion making an angle of substantially 45° with respect to said bottom, said side walls and said slope portion forming a mounting space where said lens is mounted therein;
- and
- a multi-layered ceramic package that installs said semiconductor optical device, said lens carrier with said lens and said mirror, and said thermo-electric cooler,
- wherein said thermo-electric cooler mounts said lens carrier with said lens thereon.
Dependencies are inferred from the claim text.