Optical signal processing apparatus and method
AssigneeMurata Manufacturing Co., Ltd.
InventorMakoto Tsutsumi
Life of this patent
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Abstract
An optical signal processing apparatus includes a YIG monocrystal serving as a magnetic body. A microstrip is provided on one main face of the YIG monocrystal, and microwaves are input to the microstrip. In order to input a laser beam into the YIG monocrystal, a semiconductor laser, a first lens, and a polarizer are disposed on the outside of one side surface of the YIG monocrystal with respect to the widthwise direction thereof. In order to detect a laser signal output from the YIG monocrystal, a analyzer, a second lens, and a photo detector are disposed on the outside of the other side surface of the YIG monocrystal with respect to the widthwise direction thereof.
Claims27
An optical signal processing apparatus in which a microwave signal is applied to a strip line formed transversely to a general propagation direction on a magnetic body, in order to process an optical signal propagating through said magnetic body in said general propagation direction;
- wherein a magnetic field is applied to said magnetic body;
- and
- wherein said general propagation direction of the optical signal within said magnetic body, the propagation direction of the microwave signal, and the application direction of the magnetic field are substantially perpendicular to one another.
An optical signal processing method in which a microwave signal is applied to a strip line formed transversely to a general propagation direction on a magnetic body in order to process an optical signal propagating through the magnetic body in said general propagation direction;
- wherein a magnetic field is applied to said magnetic body;
- and
- wherein said general propagation direction of the optical signal within said magnetic body, the propagation direction of the microwave signal, and the application direction of the magnetic field are substantially perpendicular to one another.
An optical signal processing apparatus in which a microwave signal is applied to a strip line formed on a magnetic body, in order to process an optical signal propagating through said magnetic body;
- and in which a photodetector receives said optical signal;
- wherein said photo detector is selected from the group consisting of a phototransistor a photoelectric tube, and a photo multiplier;
- wherein a magnetic field is applied to said magnetic body;
- and
- wherein the strip line is formed transversely to a general propagation direction of the optical signal and said general propagation direction of the optical signal within said magnetic body, the propagation direction of the microwave signal, and the application direction of the magnetic field are substantially perpendicular to one another.
An optical signal processing apparatus in which a microwave signal is applied to a resonant strip line formed on a magnetic body in order to process an optical signal propagating through said magnetic body;
- wherein a magnetic field is applied to said magnetic body;
- and
- wherein the strip line is formed transversely to a general propagation direction of the optical signal and said general propagation direction of the optical signal within said magnetic body, the propagation direction of the microwave signal, and the application direction of the magnetic field are substantially perpendicular to one another.
Dependencies are inferred from the claim text.