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:
Jun. 05, 2007
Filed:
Mar. 11, 2004
Giovanni Gilardi, San Donato Milanese, IT;
Paolo Milanese, San Donato Milanese, IT;
Simone Pensa, San Donato Milanese, IT;
Mario Bonazzoli, San Donato Milanese, IT;
Luigi Gobbi, San Donato Milanese, IT;
Giovanni Gilardi, San Donato Milanese, IT;
Paolo Milanese, San Donato Milanese, IT;
Simone Pensa, San Donato Milanese, IT;
Mario Bonazzoli, San Donato Milanese, IT;
Luigi Gobbi, San Donato Milanese, IT;
Avanex Corporation, Fremont, CA (US);
Abstract
An electro-optical modulator is disclosed that has a microwave input, chip with a thin film resistor or a lumped resistor located between an input RF connector and an RF electrode on a Lithium Niobate chip. The accessory connection chip has a broadband attenuator like a thin film resistor which is placed in a microstrip line for effecting the electrical transmission to Lithium Niobate chip. The insertion of the thin film resistor before the RF electrode lowers the electrical return loss value as a function of frequency, allowing a lower driving voltage design or a reduced chip length without degrading the performances.