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. 31, 2011
Filed:
Oct. 30, 2008
Atsushi Mori, Atsugi, JP;
Masao Kato, Atsugi, JP;
Kouji Enbutsu, Atsugi, JP;
Shinichi Aozasa, Atsugi, JP;
Kiyoshi Oikawa, Atsugi, JP;
Takashi Kurihara, Atsugi, JP;
Kazuo Fujiura, Atsugi, JP;
Makoto Shimizu, Mito, JP;
Kouji Shikano, Hakodate, JP;
Atsushi Mori, Atsugi, JP;
Masao Kato, Atsugi, JP;
Kouji Enbutsu, Atsugi, JP;
Shinichi Aozasa, Atsugi, JP;
Kiyoshi Oikawa, Atsugi, JP;
Takashi Kurihara, Atsugi, JP;
Kazuo Fujiura, Atsugi, JP;
Makoto Shimizu, Mito, JP;
Kouji Shikano, Hakodate, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
An optical fiber, which has a zero-material dispersion wavelength equal to or greater than 2 μm, and a high nonlinear susceptibility χequal to or greater than 1×10esu, and uses tellurite glass having sufficient thermal stability for processing into a low loss fiber, employs a PCF structure or HF structure having strong confinement into a core region. This enables light to propagate at a low loss. The size and geometry of air holes formed in the core region, and the spacing between adjacent air holes make it possible to control the zero dispersion wavelength within an optical telecommunication window (1.2-1.7 μm), and to achieve large nonlinearity with a nonlinear coefficient γ equal to or greater than 500 Wkm.