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:
Dec. 05, 2017
Filed:
Mar. 04, 2016
Inphi Corporation, Santa Clara, CA (US);
Chao Xu, Thousand Oaks, CA (US);
Radhakrishnan L. Nagarajan, Santa Clara, CA (US);
INPHI CORPORATION, Santa Clara, CA (US);
Abstract
Embodiments are directed to a driver circuit for an electro-absorption modulator (EAM). Particular embodiments may employ a single differential electrical driver supplying complementary positive and negative voltage signals to two respective EAMs. DC bias for the EAMs is provided at a common node in the middle. An optical source is split and fed to each of the EAMs. The EAM receiving the positive voltage signal functions to communicate the optical data as output. The other EAM receiving the negative voltage is a dummy device providing a balance load for the differential driver circuit. Signal swing is determined by a termination resistor Rlocated between parallel rails of the differential driver circuit. EAM properties such as swing and signal integrity can be traded off by choosing a different value for the termination resistor. In certain embodiments, the optical output of the dummy EAM may be used for device monitoring purposes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile