Patent ID: 11892691
Assignee: SENKO ADVANCED COMPONENTS, INC.
Field: Optics (Instruments)
Classification: CPC G  Y | IPC G

Claim 19:
20. A hermetically sealed optoelectronic module assembly, comprising:
a housing having a wall with an opening; and
a hermetic optical fiber feedthrough assembly, comprising:
a first ferrule portion having a first surface defining at least a groove receiving at least an end section of an optical fiber, wherein groove defines the location and orientation of the end section with respect to the first ferrule portion;
a second ferrule portion having a second surface facing and against the first surface of the first ferrule portion, wherein the first ferrule portion is hermetically attached to the second ferrule portion with the first surface towards the second surface to hermetically seal at least a section of the optical fiber, wherein a hermetic sealant hermetically attaching the first ferrule portion to the second ferrule potion and hermetically sealing a space around a section of the optical fiber between the first ferrule portion and the second ferrule portion,
wherein the first ferrule portion includes an extended portion beyond an edge of the second ferrule portion, on which the groove extends and terminates at a reflector located beyond the edge of the second ferrule portion, wherein an end face of the optical fiber is located at a predetermined distance from the reflector along the axis of the optical fiber, and wherein the groove accurately aligns the optical fiber with respect to the reflector, so that output light from the optical fiber can be directed by the reflector in a direction away from the first surface of the first ferrule portion to outside the first ferrule portion or input light from outside the first ferrule portion incident at the reflector can be directed towards the optical fiber,
wherein a cavity is defined between the first ferrule portion and the second ferrule portion, wherein the cavity is located partially in the first ferrule portion away from and between two ends of the first ferrule portion, wherein a suspended section of the optical fiber is suspended in the cavity, wherein the end section of the optical fiber is supported by the groove, and wherein the cavity is sealed with the hermetic sealant that extends around the suspended section of the optical fiber within the cavity, thereby hermetically sealing a space around the suspended section of the optical fiber between the first ferrule portion and the second ferrule portion,

wherein the hermetic optical feedthrough assembly is inserted through the opening in the wall of the housing and hermetically sealed at the opening in the wall of the housing with a portion of the first ferrule portion and the second ferrule portion remaining outside the housing.