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:
Apr. 08, 2014
Filed:
Nov. 10, 2011
David M. S. Johnson, Somerville, MA (US);
Jason M. Hogan, Palo Alto, CA (US);
Sheng-wey Chiow, Palo Alto, CA (US);
Mark A. Kasevich, Palo Alto, CA (US);
David M. S. Johnson, Somerville, MA (US);
Jason M. Hogan, Palo Alto, CA (US);
Sheng-wey Chiow, Palo Alto, CA (US);
Mark A. Kasevich, Palo Alto, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Abstract
Optical phase modulators are disposed in separate arms of an optical interferometer for forming short optical pulses. The optical phase modulators are driven by signals from an electrical nonlinear transmission line (NLTL). A time delay (typically on the order of the NLTL fall time) is introduced between the NLTL signals in the two arms of the interferometer. With this arrangement, the interferometer provides short optical pulses at its output. In one experiment, 70 ps switching was demonstrated using discrete LiNbOtraveling wave electro-optic modulators and commercially available NLTLs capable of delivering a 35 ps falling edge. A preferable approach is to integrate the NLTLs with the phase modulators, to further improve bandwidth. This fast switch can be used for various applications, such as implementing an Optical Time Division Multiplexing (OTDM) network architecture, and providing arbitrary waveform generation (AWG) capability.