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. 06, 2012
Filed:
Jun. 10, 2008
Per Granestrand, Tyreso, SE;
Jan-olof Wesstrom, Barcelona, ES;
Dave Adams, Stockholm, SE;
Syntune AB, Kista, SE;
Abstract
A Mach Zehnder (MZ) modulator () includes a splitter () for splitting incident light in one wave guide () into two modulator arms () of the MZ and a combiner () that combines light from the two arms () into an output mode, where electrodes () are present in connection with the arms () for changing the refractive index in the arms in order to modulate incident light so that the light is amplified or so that an extinction, due to interference between the light in the two arms, takes place. The splitter () is arranged to split incident light equally into the two arms () and a part () of one of the arms () between the electrode () and the combiner () is designed to cause an intentional loss of light in the wave guide (), whereby a desired asymmetry in transmission of the two arms () occurs.