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:
Jan. 08, 2019
Filed:
May. 04, 2015
Plugtech Precision Systems Limited (Shenzhen), Shenzhen, CN;
PLUGTECH PRECISION SYSTEMS LIMITED (SHENZHEN), Shenzhen, CN;
Abstract
The present disclosure discloses a method and an apparatus for automatically controlling a bias voltage of an optical modulator. The method includes: calculating a new Q bias voltage based on an acquired Q reference phase, a Q harmonic phase, a Q harmonic amplitude, a Q bias voltage and a Q error feedback coefficient, calculating a new I bias voltage based on an I reference phase, an I harmonic phase, an I harmonic amplitude, an I bias voltage and an I error feedback coefficient, and calculating a new P bias voltage based on a P reference phase, a P harmonic phase, a P harmonic amplitude, a P bias voltage and a P error feedback coefficient.