Invention Grant
- Patent Title: Wavelength conversion system, optical integrated device and wavelength conversion method
- Patent Title (中): 波长转换系统,光学集成器件和波长转换方法
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Application No.: US12222696Application Date: 2008-08-14
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Publication No.: US08031394B2Publication Date: 2011-10-04
- Inventor: Koji Otsubo , Haruhiko Kuwatsuka
- Applicant: Koji Otsubo , Haruhiko Kuwatsuka
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2005-258318 20050906
- Main IPC: G02F1/365
- IPC: G02F1/365 ; G02F2/02 ; H04B10/17 ; H04B10/12

Abstract:
A wavelength conversion system includes a Mach-Zehnder interferometer including two optical waveguides, a non-linear medium provided on one of the two optical waveguides, and a branching ratio adjuster for adjusting the branching ratio of multiplexed light produced by multiplexing signal light and pumping light so that the powers of the signal light and the pumping light which are to be emitted from the two optical waveguides are equal to each other. The multiplexed light whose branching ratio is adjusted by the branching ratio adjuster is introduced into the two optical waveguides such that the non-linear medium generates phase conjugation light of the signal light and the light guided through the one optical waveguide and the light guided through the other one of the two optical waveguides interfere with each other so that the phase conjugation light is extracted as wavelength conversion light.
Public/Granted literature
- US20090080064A1 Wavelength conversion system, optical integrated device and wavelength conversion method Public/Granted day:2009-03-26
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