The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1991
Filed:
Aug. 17, 1989
Richard J Pimpinella, Hampton, NJ (US);
John M Segelken, Morristown, NJ (US);
King L Tai, Berkeley Heights, NJ (US);
Ross J Thompson, Budd Lake, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
Disclosed is a novel 'hermetic' optical assembly. A radiation-transmissive member seals an aperture in the assembly housing. The member comprises two major surfaces and a recess that extends from one surface towards the other, with a 'septum' between the bottom of the recess and the other surface. An optical or opto-electronic device typically is mounted on the inside surface of the member, and the end of an optical fiber is maintained outside of the assembly in coupling relationship with the device. In a currently preferred embodiment the recess extends from the outward-facing surface of the member and serves to position the end of the optical fiber with respect to a device mounted in a 'well' in the inward-facing surface of the member. In another embodiment, the outward facing surface of the member comprises geometrical features (e.g., recesses) that mate with corresponding features (e.g., protrusions) on a guide plate that serves to position the ends of a multiplicity of fibers with respect to devices mounted on the bottom of a recess extending from the inward-facing surface of the radiation-transmissive member. In all embodiments radiation is transmitted through the septum. In preferred embodiments the radiation-transmissive member is (100) Si, with the recess (and other features) produced by means comprising photolithography and anisotropic etching.