KR960035067A - Optical splitter structure for optical communication - Google Patents

Abstract

A photosynthesis splitter that can be used for optical communication is disclosed. A photosynthesis splitter is a device required to simultaneously transmit or receive two optical signals of different wavelengths through a single optical fiber.

The photosynthetic spectrometer, which requires precision, has a complicated structure because it uses a plurality of lenses, and assembly is not easy with respect to alignment of the optical axis.

This assembly and alignment problem can be greatly improved by reducing the number of lenses, reducing the number of parts, and forming a filter as a coating layer, and increasing efficiency.

Such an optical splitter may be used for transmission or reception equipment for optical communication.

Description

Optical splitter structure for optical communication

Since this is an open matter, no full text was included.

Figure 4 is a schematic diagram showing the structure of the photosynthesis splitter according to the present invention, Figure 5 is a schematic diagram showing the path of the optical signal in the photosynthesis splitter of Figure 4, and Figure 6 is another embodiment of the photosynthesis splitter of the present invention Is a schematic diagram showing the path of an optical signal.

Claims (14)

In an optical splitter used for optical communication, a body having a hollow portion for accommodating components, first and second gradient index lenses accommodated in a central portion of the hollow portion of the body, and the first and second gradient indexes A filter coating layer formed on an interface between the lenses to reflect the optical signal of the first wavelength and to pass the optical signal of the second wavelength; One optical fiber, a second optical fiber for receiving an optical signal of a second wavelength and inputting it into a third optical fiber, and receiving an optical signal of a first wavelength and a second wavelength, respectively, from the first and second optical fibers A third optical fiber which is outputted to the hollow part of the body, the first silica tube for receiving and supporting the first optical fiber and the third optical fiber, and the body And a second silica tube for receiving and supporting the second optical fiber, the portion being accommodated in the study, between the first silica tube and the first gradient index lens and between the second silica tube and Between the second gradient index lens is bonded by a predetermined adhesive, and the first, second and third optical fibers are optical signals of the first wavelength and the second wavelength through the two first and second optical fibers A photosynthesis spectrometer configured to have a mutual position so that it can be input to the third optical fiber through the gradient index lens. 2. The photosynthesis splitter according to claim 1, wherein the filter is formed on the first gradient index lens surface of the filter coating layer. 2. The photosynthesis splitter according to claim 1, wherein the filter is formed on the second gradient index lens surface of the filter coating layer. 2. A photosynthesis splitter according to claim 1, wherein said predetermined adhesive has the same refractive index as said silica tube. 2. A light splitter according to claim 1, wherein said predetermined adhesive has the same refractive index as said gradient index lens. The photosynthesis splitter according to claim 1, wherein the predetermined adhesive is silica gel. 2. The photosynthesis splitter according to claim 1, wherein said first silica tube has three or more optical fibers. In an optical splitter used for optical communication, a body having a hollow portion for accommodating components, first and second gradient index lenses accommodated in a central portion of the hollow portion of the body, and the first and second gradient indexes It is formed on the interface between the lens and reflects the optical signal of the first wavelength and passes through the filter coating layer, the first wavelength and the optical signal of the first wavelength and the second wavelength, which acts as a filter to pass the optical signal of the second wavelength through one optical fiber A first optical fiber, a second optical fiber for receiving an optical signal of a first wavelength from the first optical fiber, a third optical fiber for receiving an optical signal of a second wavelength, and a part of the hollow part of the body, Part of the first silica tube for receiving and supporting the first optical fiber and the second fiber, and a hollow portion of the body is accommodated, and for receiving and supporting the third optical fiber A second silica tube, wherein between the first silica tube and the first gradient index lens and between the second silica tube and the second gradient index lens are bonded with a predetermined adhesive; The first, second, and third optical fibers are configured to have mutual positions such that optical signals of the first and second wavelengths through the first optical fibers can be input to the second and third optical fibers through the gradient index lens. Integrator. 9. The light splitter according to claim 8, wherein the filter coating layer is formed on a first gradient index lens surface. 9. The light splitter according to claim 8, wherein said filter coating layer is formed on a second gradient index lens surface. 9. The photosynthesis splitter according to claim 8, wherein said predetermined adhesive has the same refractive index as said silica tube. 9. The light splitter according to claim 8, wherein said predetermined adhesive has the same refractive index as said gradient index lens. The photosynthesis splitter according to claim 8, wherein the predetermined adhesive is silica gel. 9. The photosynthesis splitter according to claim 8, wherein said first silica tube has three or more optical fibers. ※ Note: The disclosure is based on the initial application.