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. 14, 2026
Filed:
Jul. 07, 2023
Applicant:
1finity Inc., Kawasaki, JP;
Inventor:
Tomoyuki Kato, Yokohama, JP;
Assignee:
FINITY Inc., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G02B 27/28 (2006.01); G02F 1/39 (2006.01); H04B 10/572 (2013.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
G02F 1/3532 (2013.01); G02B 27/283 (2013.01); G02F 1/395 (2013.01); H04B 10/572 (2013.01); H04J 14/0307 (2023.08); G02F 2203/055 (2013.01);
Abstract
A wavelength converter includes: a first multiplexer that combines input signal light with wavelength-conversion excitation light; a second multiplexer that combines the signal light with Raman excitation light; a first nonlinear optical medium that generates wavelength-converted light of the signal light, based on a nonlinear optical effect; and a second nonlinear optical medium that amplifies wavelength-converted light of the signal light output from the first nonlinear optical medium. A wavelength of the Raman excitation light being a wavelength within an amplification band that allows Raman amplification of wavelength-converted light.