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:
Jul. 08, 2008
Filed:
Dec. 25, 2003
Toshikazu Hashimoto, Yamato, JP;
Ikuo Ogawa, Atsugi, JP;
Takeshi Kitagawa, Yokohama, JP;
Senichi Suzuki, Mito, JP;
Masahiro Yanagisawa, Isehara, JP;
Tomohiro Shibata, Tokyo, JP;
Masaki Koutoku, Isehara, JP;
Hiroshi Takahashi, Atsugi, JP;
Ryou Nagase, Tokyo, JP;
Masaru Kobayashi, Isehara, JP;
Shuichiro Asakawa, Atsugi, JP;
Yoshiteru Abe, Zama, JP;
Tsutomu Kitoh, Atsugi, JP;
Takaharu Ohyama, Yao, JP;
Toshikazu Hashimoto, Yamato, JP;
Ikuo Ogawa, Atsugi, JP;
Takeshi Kitagawa, Yokohama, JP;
Senichi Suzuki, Mito, JP;
Masahiro Yanagisawa, Isehara, JP;
Tomohiro Shibata, Tokyo, JP;
Masaki Koutoku, Isehara, JP;
Hiroshi Takahashi, Atsugi, JP;
Ryou Nagase, Tokyo, JP;
Masaru Kobayashi, Isehara, JP;
Shuichiro Asakawa, Atsugi, JP;
Yoshiteru Abe, Zama, JP;
Tsutomu Kitoh, Atsugi, JP;
Takaharu Ohyama, Yao, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A wave transmission medium includes an input port-and an output port-. A field distributionand a field distributionare obtained by numerical calculations. The field distributionis a field distribution of the propagation light (forward propagation light) launched into the input port-. The field distributionis a field distribution of the phase conjugate light (reverse propagation light) resulting from reversely transmitting from the output port side an output field that is expected to be output from the output port-when an optical signal is launched into the input port-. According to the field distributionsand, a spatial refractive index distribution is calculated such that the phase difference between the propagation light and reverse propagation light is eliminated at individual points (x, z) in the medium.