Optical: systems and elements – Polarization without modulation – Polarization using a time invariant electric – magnetic – or...
Reexamination Certificate
2005-08-09
2005-08-09
Lester, Evelyn A. (Department: 2873)
Optical: systems and elements
Polarization without modulation
Polarization using a time invariant electric, magnetic, or...
C359S490020, C359S506000, C359S506000, C359S282000, C359S283000, C359S284000
Reexamination Certificate
active
06927909
ABSTRACT:
The integrated magneto-optical modulator with optical isolator of the present invention comprises an optical isolator unit, a magneto-optical modulator unit, an impedance adjuster. The optical isolator unit rotates a polarization of an incident light from a light source to transmit the light with rotated polarization, and eliminates a reflected feedback light toward the light source. The magneto-optical modulator unit modulates an intensity of the light from the optical isolator unit and transmitting the modulated light outside. The impedance adjuster adjusts electrical impedance at the magneto-optical modulator unit in order to effectively introduce the high-frequency signal for light modulation to the magneto-optical modulator unit. Further, the optical isolator unit and the magneto-optical modulator unit are contained a single package.
REFERENCES:
patent: 3495189 (1970-02-01), Le Craw
patent: 4136350 (1979-01-01), Tien
patent: 4810065 (1989-03-01), Valette et al.
patent: 5598492 (1997-01-01), Hammer
patent: 6141140 (2000-10-01), Kim
patent: 6359722 (2002-03-01), Inoue et al.
patent: 6542647 (2003-04-01), Minemoto et al.
patent: 2003/0184841 (2003-10-01), Minemoto
patent: 1 202 105 (2002-05-01), None
patent: 3-144417 (1991-06-01), None
patent: 4-172261 (1992-06-01), None
patent: 7-199137 (1995-08-01), None
patent: 10-186189 (1998-07-01), None
patent: 2001-272639 (2001-10-01), None
Nishihara et al., Optical Integrated Circuit, pp. 298-304, 1985 Ohm-sha.
J. Appl. Phys. vol. 76 No. 3 pp. 1405-1408 (1994), “Estimation of direct current bias and drift of Ti:LiNbO3optical modulators”.
Appl. Phys. Lett. vol. 21 No. 8 pp. 394-396 (1972), “Switching and modulation of light in magneto-optic waveguides of garnet films”.
Appl. Phys. Lett. vol. 68 No. 25 pp. 3546-3548 (1996), “Ultrafast magneto-optic sampling of picosecond current pulses”.
61th JJAP Transaction, lecture No. 4p-Q-4 (2000), “Sensitivity improvement of fiber edge magneto-optic probe by applying a transverse DC magnetic field”.
J. Appl. Phys. vol. 53 No. 11 pp. 8263-8265 (1982), “A sensitive and compact magnetometer using Faraday effect in YIG waveguide”.
National Technical Report vol. 38 No. 2 pp. 127-133 (1992), “Fiber-Optic Monitoring Sensor System for Power Distribution Lines”.
J. Smit et al, “Ferrities” Cleaver-Hume Press, 1959 pp. 269-300.
Lester Evelyn A.
Matsushita Electric - Industrial Co., Ltd.
Woo Louis
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