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:
Nov. 17, 2009
Filed:
May. 22, 2006
Shinji Iio, Tokyo, JP;
Machio Dobashi, Tokyo, JP;
Chie Sato, Tokyo, JP;
Morio Wada, Tokyo, JP;
Katsuya Ikezawa, Tokyo, JP;
Akira Miura, Tokyo, JP;
Tsuyoshi Yakihara, Tokyo, JP;
Shinji Kobayashi, Tokyo, JP;
Sadaharu Oka, Tokyo, JP;
Shinji Iio, Tokyo, JP;
Machio Dobashi, Tokyo, JP;
Chie Sato, Tokyo, JP;
Morio Wada, Tokyo, JP;
Katsuya Ikezawa, Tokyo, JP;
Akira Miura, Tokyo, JP;
Tsuyoshi Yakihara, Tokyo, JP;
Shinji Kobayashi, Tokyo, JP;
Sadaharu Oka, Tokyo, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
An optical waveform shaping device includes a first waveguide portion, formed on a substrate, for transmitting the optical signal and simultaneously absorbing a portion of the optical signal, which has a signal level equal to or smaller than a predetermined value, so as to shape the optical signal; and a second waveguide portion, formed on the substrate, for transmitting the optical signal, which was transmitted through the first waveguide portion, and simultaneously amplifying the optical signal. The first waveguide portion may be formed using a saturable absorber. A first electrode for supplying electric current to the first waveguide portion so that the first waveguide portion is provided with a function of absorbing the optical signal; and a second electrode for supplying electric current to the second waveguide portion so that the second waveguide portion is provided with a function of amplifying the optical signal may also be provided.