Optical waveguides – Polarization without modulation
Reexamination Certificate
2005-11-08
2005-11-08
Font, Frank G. (Department: 2883)
Optical waveguides
Polarization without modulation
C398S079000, C398S150000, C398S160000, C398S175000, C398S176000
Reexamination Certificate
active
06963675
ABSTRACT:
The device according to the present invention relates to phase conjugate conversion and wavelength conversion. This device includes a polarization beam splitter and a polarization maintaining fiber (PMF). The polarization beam splitter has first, second, and third ports. The first port is supplied with signal light including first and second polarization components respectively having first and second polarization planes orthogonal to each other, and with pump light. The first and second ports are coupled by the first polarization plane, and the first and third ports are coupled by the second polarization plane. The PMF has first and second ends, and has a polarization mode to be maintained between the first and second ends. The first end is optically connected to the second port so that the first polarization plane is adapted to the polarization mode, and the second end is optically connected to the third port so that the second polarization plane is adapted to the polarization mode. Converted light generated by four-wave mixing based on the signal light and the pump light in the PMF is output from the first port, so that the converted light can be taken out by an optical circulator.
REFERENCES:
patent: 5596667 (1997-01-01), Watanabe
patent: 5798853 (1998-08-01), Watanabe
patent: 6122419 (2000-09-01), Kurokawa
patent: 6307984 (2001-10-01), Watanabe
patent: 6411413 (2002-06-01), Bergano
patent: 0 776 103 (1997-05-01), None
patent: 776 103 (1997-05-01), None
patent: 828 178 (1998-03-01), None
patent: 0 828 178 (1998-03-01), None
S. Watanabe, et al., Polorisation-insensitive wavelength conversation and phase conjugation using bi-directional forward four-wave mixing in a lasing DFB-LD; Feb. 13, 1997; pp. 1-2.
European Patent Office; European Search Report; Apr. 15, 2003; pp. 1-4.
Watanabe S et al. “Polarisation-insensitive wavelength conversion and phase conjugation using bi-directional forward four-wave mixing in a lasting DFB-LD,” 33.4 (Feb. 13, 1997): 316-317.
Font Frank G.
Fujitsu Limited
Mooney Michael P.
Staas & Halsey , LLP
LandOfFree
Device and system for phase conjugate conversion and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and system for phase conjugate conversion and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and system for phase conjugate conversion and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3456623