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:
Jul. 05, 1994
Filed:
Oct. 16, 1992
Walter Bernard, Daisendorf, DE;
Gotz Geister, Salem, DE;
Bodenseewerk Geratetechnik GmbH, Bodensee, DE;
Abstract
A sensor which makes use of a non-reciprocal optical effect, such as the Sagnac effect has a passive ring resonator defining a closed light path. Light from a broadband light source is coupled to the passive ring resonator by 2.times.2 couplers in a first direction of propagation and a second direction of propagation opposite thereto. The 2.times.2 couplers also couple light out of the passive ring resonator. A 3.times.3 optical coupler is provided, by which light having circulated in said ring resonator in the first direction of propagation is superimposed to light having circulated in the ring resonator in the second direction of propagation to provide interference. The detector is exposed to this interfering light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile