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. 11, 1991
Filed:
Sep. 26, 1990
Applicant:
Inventors:
Naota Uenishi, Osaka, JP;
Takafumi Uemiya, Osaka, JP;
Akira Mizoguchi, Osaka, JP;
Yasuji Ogaki, Osaka, JP;
Yasuhiro Hattori, Osaka, JP;
Teruo Tohma, Saitama, JP;
Kiyofumi Chikuma, Saitama, JP;
Sota Okamoto, Saitama, JP;
Assignees:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H03F / ; F21V / ;
U.S. Cl.
CPC ...
350 9634 ; 350 9629 ; 350 9630 ; 307427 ; 307425 ; 307430 ; 252582 ;
Abstract
A fiber wavelength modulator device which emits a secondary harmonic component by Cerenkov radiation, including a core being a single crystal of a non-linear optical material and a cladding being composed of glass, wherein the relative difference between the core and the cladding has a refraction index with respect to an incident beam, of at lesat 0.015.