Invention Grant
- Patent Title: Optical QPSK signal regeneration and amplification
- Patent Title (中): 光QPSK信号再生和放大
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Application No.: US13665254Application Date: 2012-10-31
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Publication No.: US08909063B2Publication Date: 2014-12-09
- Inventor: Jeng-Yuan Yang , Youichi Akasaka , Motoyoshi Sekiya , Inwoong Kim
- Applicant: Fujitsu Network Communications, Inc.
- Applicant Address: JP Kawasaki-shi
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki-shi
- Agency: Baker Botts L.L.P.
- Main IPC: H04B10/291
- IPC: H04B10/291
Abstract:
A method for regenerating and amplifying optical signals includes determining a source optical signal, adding a first pump optical signal and a second pump optical signal to the source optical signal to yield an intermediate optical signal, duplicating the intermediate optical signal to yield a first duplicate signal and a second duplicate signal, phase-shifting the first duplicate signal, passing the phase-shifted first duplicate signal and the second duplicate signal bi-directionally through a nonlinear optical element, and performing degenerate phase-sensitive amplification on the phase-shifted first duplicate signal and the second duplicate signal.
Public/Granted literature
- US20140119743A1 OPTICAL QPSK SIGNAL REGENERATION AND AMPLIFICATION Public/Granted day:2014-05-01
Information query
