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:
Nov. 11, 1997
Filed:
Apr. 04, 1995
Oldrich M Laznicka, Jr, Wellesley, MA (US);
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Abstract
An optical component for use in optical devices, such as an interferometer fiber optic gyroscope including a polarizing beamsplitter and a non-reciprocal optical device mounted on a common substrate; and an optical transceiver. The optical component may be used in a low loss configuration with an optical source and a photodetector and associated focusing lenses and a fiber optic ring or coil sensor for a gyroscope. The non-reciprocal device rotates the polarization plane of light. transmitted from the source through the beamsplitter to the sensor, and light returned from the sensor toward the beamsplitter, by 45 degrees in the same direction so that substantially all return light incident on the beamsplitter is reflected toward the photodetector.