Optical waveguides – Polarization without modulation
Patent
1997-10-02
2000-01-11
Bovernick, Rodney
Optical waveguides
Polarization without modulation
385 33, 385 27, 359281, G02B 530
Patent
active
060144750
ABSTRACT:
A non reciprocal optical device for transmitting light in a forward and reverse direction substantially independently of polarization state from a collection of waveguides. The device includes: a first array of spaced apart waveguides having at least a first wave guide and a second waveguide; a second array of spaced apart waveguides including at least a third waveguide; an imaging component for focusing a diverging beam of light disposed between the first array and the second array of waveguides, at least two polarization equalization components for polarization equalization of diverging or converging light, each of the polarization equalization components disposed between a waveguide array and the imaging component; add a plurality of polarization rotation components disposed between each waveguide array. Light from the first waveguide is transmitted to the third waveguide and light from the third waveguide is transmitted to the second waveguide in a polarization independent manner. The polarization equalization components and the imaging component are disposed with respect to one another and with respect to the respective first, second and third waveguides such that light radiating from each of the first, second and third waveguides first passes through one of the at least two polarization equalization components prior to passing through the imaging component which is located between the polarization equalization components.
REFERENCES:
patent: 4375910 (1983-03-01), Seki
patent: 4978189 (1990-12-01), Blonder et al.
patent: 5105307 (1992-04-01), Nishiyama et al.
patent: 5204771 (1993-04-01), Koga
patent: 5267078 (1993-11-01), Shiraishi et al.
patent: 5428477 (1995-06-01), Siroki
patent: 5471340 (1995-11-01), Cheng et al.
patent: 5499307 (1996-03-01), Iwatsuka
patent: 5574596 (1996-11-01), Cheng
patent: 5588078 (1996-12-01), Cheng et al.
patent: 5652814 (1997-07-01), Pan et al.
patent: 5689359 (1997-11-01), Kurata et al.
patent: 5734762 (1998-03-01), Ho et al.
Polarization-independent optical circulator: an experiment by Matsumoto and Sato, Applied Optica, vol. 19, No. 1, Jan. 1980.
English abstract of JP 4-116616 of Apr. 1992.
English abstract of JP 07-43640 of Feb. 1995.
English abstract of JP 7-175020 of Jul. 1995.
English abstract of JP 3-65907 of Oct. 1992.
English abstract of JP 5-313094 of Nov. 1993.
Australian Technology Park Photonic Technologies Pty. Ltd.
Bovernick Rodney
Kang Ellen E.
LandOfFree
Fiber optic circulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber optic circulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic circulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1468265