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:
Sep. 13, 2005
Filed:
Jun. 02, 2004
Benjamin Dingel, Painted Post, NY (US);
Benjamin Dingel, Painted Post, NY (US);
Other;
Abstract
The invented modulator provides ultra-high linearity (SFDR=147 dB-Hz), high tolerance, low loss, simple architecture, and low cost. It is based on unique combination of phase-modulator (PM) and ring resonator (RR) that are coupled to the arm(s) of standard Mach-Zehnder interferometer (MZI) configuration. It comprises of input port to receive optical signal, optical power separating means, interferometer arm length paths&, bias controller mean, PM, RRwith couplerhaving coefficient δ, optical power combining means, RF power splitting means, RF power source, and optical output signal. Both PMand RRare driven by same RF sourcewhose output power is divided into two parts with a split ratio of F:(1-F). The role of RRis to provide the necessary non-linear phase-correction. It operates under non-resonance condition to avoid bandwidth narrowing. The dual modulation of PMand RRis an important factor in this invention.