Communication light detecting device
First Claim
1. A communication light detecting device configured to interconnect a plurality of light transmission paths for communication light, and to be collocated between the light transmission paths, the communication light detecting device comprising:
- an optical coupling body, including;
a clad portion,a core portion configured to photo couple with the light transmission paths, anda light extracting portion, configured to extract a part of the communication light as a leakage light, having a light detecting use groove formed by cutting and separating the core portion, and having a lower refractive index than that of the core portion; and
a light detecting portion having a light receiving member configured to receive the leakage light.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication light detecting device interconnecting light transmission paths and collocated therebetween, comprises: an optical coupling body including a core portion for photo coupling with the light transmission paths, and a light extracting portion for extracting a part of the communication light as a leakage light; and a light detecting portion having a light receiving member for receiving the leakage light. The light extracting portion is preferable to possess a lower refractive index than that of the core portion. Besides, the light extracting portion is preferable to include a light detecting use groove with a groove width of 50 μm or more and 140 μm or less formed by cutting and separating the core portion. Besides, the light extracting portion is preferable to be the optical coupling body in which outer diameter of the core portion is different from the outer diameter of a core of the light transmission path.
7 Citations
22 Claims
-
1. A communication light detecting device configured to interconnect a plurality of light transmission paths for communication light, and to be collocated between the light transmission paths, the communication light detecting device comprising:
-
an optical coupling body, including; a clad portion, a core portion configured to photo couple with the light transmission paths, and a light extracting portion, configured to extract a part of the communication light as a leakage light, having a light detecting use groove formed by cutting and separating the core portion, and having a lower refractive index than that of the core portion; and a light detecting portion having a light receiving member configured to receive the leakage light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A communication light detecting device collocated between each of light transmission paths for interconnecting each of end portions of the light transmission paths inside a sleeve, each of the light transmission paths being comprised of an optical fiber for communication light, and for detecting existence and absence of the communication light, comprising:
-
an optical coupling body including a clad portion and a core portion for photo coupling with the light transmission paths, and further including a light detecting use groove formed so as to cut and separate the core portion as well as a refractive index matching agent filled in the light detecting use groove; and a light detecting portion having a light receiving member for detecting a leakage light of the communication light leaking via the light detecting use groove and collocated adjacent the optical coupling body, wherein; groove width of the light detecting use groove along the optical axis direction of the core portion is within a range from 50 to 150 μ
m. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A communication light detecting device interconnecting each of light transmission paths for communication light, detecting existence and absence of the communication light, and collocated between the light transmission paths, comprising:
-
an optical coupling body including; a clad portion, a core portion for photo coupling with the light transmission paths, and a light extracting portion, for extracting a part of the communication light as a leakage light, and having a light detecting use groove formed by cutting and separating the core portion; and a light detecting portion including a light receiving member for receiving the leakage light and collocated adjacent the optical coupling body, and further including a failure detection light emitting member for emitting failure detection light toward the light extracting portion and a light receiving member for receiving the failure detection light reflected near the light extracting portion. - View Dependent Claims (17, 18, 19, 20, 21)
-
-
22. A communication light detecting device configured to interconnect a plurality of light transmission paths for communication light, and to be collocated between the light transmission paths, the communication light detecting device comprising:
-
an optical coupling body including; a clad portion, a core portion configured to photo couple with the light transmission paths, and a light extracting portion, configured to extract a part of the communication light as a leakage light, having a light detecting use groove separating the core portion; and a light detecting portion having a light receiving member configured to receive the leakage light.
-
Specification