Optical communication device provided with a reflector and method for forming a reflector in an optical communication device
First Claim
1. An optical communication device provided with an optical medium that propagates light and a reflector for reflecting the light that has reached one end surface of the optical medium to turn an optical path thereof, wherein said reflector includes:
- a transparent thin film layer formed on one end surface of said optical medium by using a material to which a metal that forms a chemical bond with gold (Au) is added to a substance that is transparent to the light that propagates through said optical medium; and
a gold (Au) thin film layer formed on a front surface of the transparent thin film layer.
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Accused Products
Abstract
An optical communication device of the invention includes a reflector for reflecting the light that has reached one end surface of a waveguide chip to turn the optical path of the light. The reflector includes a transparent thin film layer formed on one end surface of the waveguide chip by using a material to which a metal that forms an intermetallic compound or the like with Au is added to a substance that is transparent to the light that propagates through the waveguide, as well as an Au thin film layer formed on the front surface of the transparent thin film layer. This allows formation of a reflector having an Au thin film layer as a reflecting surface in an optical medium with high adhesion strength. Thus, an optical communication device can be provided having a high reliability with little loss.
242 Citations
20 Claims
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1. An optical communication device provided with an optical medium that propagates light and a reflector for reflecting the light that has reached one end surface of the optical medium to turn an optical path thereof, wherein said reflector includes:
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a transparent thin film layer formed on one end surface of said optical medium by using a material to which a metal that forms a chemical bond with gold (Au) is added to a substance that is transparent to the light that propagates through said optical medium; and
a gold (Au) thin film layer formed on a front surface of the transparent thin film layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An optical communication device comprising:
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a transparent layer formed on one end surface of an optical medium by using a material to which a metal that forms a chemical bond with gold (Au) is added to a substance that is transparent to light that propagates through said optical medium; and
a gold (Au) thin film layer formed on a front surface of the transparent layer.
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13. A method for forming, in an optical communication device in which light propagates through an optical medium, a reflector for reflecting the light that has reached one end surface of said optical medium to turn an optical path thereof, said method comprising:
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forming a transparent thin film layer on one end surface of said optical medium by using a material to which a metal that forms a chemical bond with gold (Au) is added to a substance that is transparent to the light that propagates through said optical medium; and
forming a gold (Au) thin film layer on a front surface of the formed transparent thin film layer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification