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:
Aug. 28, 1984
Filed:
Jul. 20, 1981
Reinhard Ulrich, 2110 Buchholz, DE;
Scott Rashleigh, Alexandria, VA (US);
Other;
Abstract
A fiber optical arrangement for the transmission, in a manner preserving its polarization, of light of a linear polarization state using an optical fiber having a linear birefringence of an amount sufficient to provide extensive decoupling of the polarization-degenerate modes of oscillation of the light that can propagate within the fiber. The amount of linear birefringence .beta. required for decoupling these modes of oscillation is achieved by winding the optical fiber in an elastically extended condition upon a winding form and fixing it thereon in this elastically extended state, the linear birefringence .beta.=.beta..sub.tc +.beta..sub.b being preferably three times greater than the intrinsic birefringence .beta..sub.i of the optical fiber. The fiber optical arrangement may be used within an interferometer for measuring pressures or, if mounted to rotate, within a Sagnac interferometer also for the exact measurement of rotations and rates of angular displacements.