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. 19, 2002
Filed:
Oct. 29, 1999
Michel J. F. Digonnet, Palo Alto, CA (US);
Dario G. Falquier, Menlo Park, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
The wavelength stability of superfluorescent sources is controlled with optical arrangements in which the polarization-dependent gain (PDG) induced by the polarized pump light is reduced. In one apparatus and method, a Faraday rotator mirror is used at the end of the waveguide in the superfluorescent source. In another apparatus and method, the birefringence of the waveguide is exploited in conjunction with a Faraday rotator mirror to further average out the effect of PDG on the mean wavelength difference between the spectral outputs of orthogonal polarization components.