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:
May. 28, 1996
Filed:
Feb. 13, 1995
Kazuo Aida, Yokohama, JP;
Yoshiaki Sato, Chiba, JP;
Nippon Telegraph & Telephone Corporation, Tokyo, JP;
Abstract
A method and a system for measuring a noise figure of an optical amplifier which independently detects two different output powers generated from the optical amplifier under measurement. The generation of the first output power is in synchronization with a space period of an input optical pulsed signal, while the generation of the second output power is in synchronization with the mark period of the input optical pulsed signal. The-optical pulsed signal is an intensity-modulated signal given at a repetition period which is sufficiently shorter than the life time of carriers or the life time of ions in a metastable level of the optical amplifier under measurement.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile