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:
Oct. 10, 2017
Filed:
Mar. 05, 2015
Oclaro Technology Limited, Northamptonshire, GB;
Barrie Flintham, Totnes, GB;
Adrian Perrin Janssen, Devon, GB;
Stephen Gardner, Devon, GB;
Andrew Cannon Carter, Northants, GB;
OCLARO TECHNOLOGY LIMITED, Northamptonshire, GB;
Abstract
Methods and apparatus for use in coherent transmission and reception of optical data signals. An integrated optics block () for use in a coherent optical transmitter comprising: a beam splitter () configured to split an input light signal into first and second input light signals, to output the first input light signal for use in an optical transmitter chip and to output the second input light signal for use as a local oscillator signal; a polarization combiner () configured to combine first and second received modulated light signals to form an output; and a polarization rotator () configured to rotate the polarization of the second modulated light signal such that it is substantially orthogonal to the polarization of the first modulated light signal prior to combining.