KR100202356B1 - Optical waveguide element with input and output unit located same side - Google Patents
Optical waveguide element with input and output unit located same side Download PDFInfo
- Publication number
- KR100202356B1 KR100202356B1 KR1019960064310A KR19960064310A KR100202356B1 KR 100202356 B1 KR100202356 B1 KR 100202356B1 KR 1019960064310 A KR1019960064310 A KR 1019960064310A KR 19960064310 A KR19960064310 A KR 19960064310A KR 100202356 B1 KR100202356 B1 KR 100202356B1
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- KR
- South Korea
- Prior art keywords
- optical waveguide
- input
- waveguide device
- output unit
- waveguide element
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12083—Constructional arrangements
- G02B2006/12104—Mirror; Reflectors or the like
Abstract
본 발명은 광도파로 소자의 입출력부가 한쪽에 있는 소자의 제작에 관한 것으로서, 광정렬에 드는 시간이 줄어들고 생산성을 높일 수 있는 입출력부가 한쪽 방향에 위치하는 광도파로 소자를 제공하고자 하는 목적을 가지고 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to fabrication of a device having one input / output portion of an optical waveguide element, and has an object to provide an optical waveguide element having an input / output portion located in one direction that can reduce the time required for optical alignment and increase productivity.
상기 목적을 달성하기 위하여 광도파로 소자에 있어서, 상기 도파로 소자의 출력단에 반사기능이 추가된 것을 특징으로 하는 입출력부가 한쪽 방향에 위치하는 광도파로 소자를 제공한다.In order to achieve the above object, there is provided an optical waveguide device in which an input / output unit is located in one direction, wherein a reflection function is added to an output terminal of the waveguide device.
Description
본 발명은 광도파로소자에 관한 것으로서, 특히 광도파로 소자의 입출력부가 한쪽에 있는 소자의 제작에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical waveguide device, and more particularly, to fabrication of a device having one input and output portion of an optical waveguide device.
도 1에서 보듯이, 입력과 출력이 양단에 있는 종래의 광도파로 소자는 예를 들어 1×N 커플러 (여기서 N=2, 4, 8, 16)는 입력쪽에 한 가닥의 광섬유가 도파로 칩의 입력 쪽에 붙어 있고 출력 쪽에는 N개의 광섬유가 붙어있다. 그리고 도파로 칩은 단순히 1×2 커플러를 연결하면 된다.As shown in Fig. 1, a conventional optical waveguide device having an input and an output at both ends thereof has, for example, a 1 × N coupler (where N = 2, 4, 8, 16), where one strand of optical fiber is input to the waveguide chip. It is attached to the side, and N optical fibers are attached to the output side. And the waveguide chip simply connects a 1x2 coupler.
기존의 광도파로 소자는 광이 들어가는 쪽과 광이 나가는 쪽이 도파로의 양단에 위치해 있다. 그러므로 광섬유를 광도파로에 접속할 때는 광섬유를 양쪽에 붙여야 한다. 보통 이러한 정렬과정은 시간이 많이 소요되는 공정으로 생산성이 낮다.In conventional optical waveguide elements, the light entering side and the light exiting side are located at both ends of the waveguide. Therefore, when connecting an optical fiber to an optical waveguide, the optical fiber must be attached to both sides. Usually this sorting process is time consuming and the productivity is low.
전술한 바와 같은 문제점을 해결하기 위하여 본 발명은 도파로 소자의 한쪽에 입력부와 출력부가 동시에 존재하게 하여 광섬유를 한쪽에만 부착하면 되므로 광정렬에 드는 시간이 줄어들고 생산성을 높일 수 있는 입출력부가 한쪽 방향에 위치하는 광도파로 소자를 제공하고자 하는 목적을 가지고 있다.In order to solve the problems described above, the present invention is to be located at one side of the waveguide element at the same time the input unit and the output unit at the same time to attach the optical fiber only on one side, so that the time required for optical alignment is reduced and productivity is located in one direction It is intended to provide an optical waveguide device.
도 1은 종래의 광도파로 소자를 나타낸 개념도.1 is a conceptual diagram showing a conventional optical waveguide device.
도 2는 본 발명의 광도파로 소자를 나타낸 개념도.2 is a conceptual diagram showing an optical waveguide device of the present invention.
도 3은 본 발명을 반사판 삽입형으로 구현한 개념도.Figure 3 is a conceptual view of the present invention implemented in the reflection plate insertion type.
도 4는 본 발명을 간섭계를 이용한 그레이팅 방식으로 구현한 개념도.4 is a conceptual diagram of the present invention implemented by a grating method using an interferometer.
도 5는 본 발명을 간섭계를 이용한 골드코팅 방식으로 구현한 개념도.5 is a conceptual diagram of the present invention implemented by a gold coating method using an interferometer.
도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings
1 : 입력 광섬유 2 : 출력 광섬유1: input fiber 2: output fiber
3 : 도파로 칩 4 : 도파로3: waveguide chip 4: waveguide
5 : 반사면 6 : Y-branch5: reflective surface 6: Y-branch
7 : 반사판 8 : 그레이팅(grating)7: Reflector 8: Grating
9 : 방향성 커플러 타입 간섭계 커플러9: Directional Coupler Type Interferometer Coupler
광도파로소자의 입력과 출력이 한쪽에 위치한 광도파로소자를 제작하기 위해서는 입력된 광의 방향을 입력쪽으로 반사시키는 기능을 가져야 한다. 보통 광을 반사시키기 위해서는 거울과 같은 것을 사용하면 된다.In order to manufacture an optical waveguide device in which the input and output of the optical waveguide device are located on one side, the optical waveguide device should have a function of reflecting the direction of the input light toward the input. Usually, you can use something like a mirror to reflect light.
이러한 반사기능을 갖는 구조를 몇가지 제안하면 다음과 같다.Some suggested structures with such a reflection function are as follows.
먼저 도 2처럼 도파로의 끝을 연마한 후 골트코팅(gold coating)하는 방법이 있다. 두 번째로는 도 3과 같이 도파로를 90도 각도로 꺾어 놓고 45도 방향으로 반사판을 삽입하는 방법이 있다. 또한 도 4와 도 5처럼 Michelson 간섭계를 이용하는 방법이 있다. 도 4는 도파로에 그레이팅(grating)을 만들어서 광을 반사시키는 방법이 나타나 있고, 도 5는 도파로 끝에 골드 코팅하여 광을 반사시키는 방법이다.First, as shown in FIG. 2, the end of the waveguide is polished and then coated with gold. Second, there is a method of bending the waveguide at a 90 degree angle and inserting the reflector in the 45 degree direction as shown in FIG. 3. There is also a method using a Michelson interferometer as shown in FIGS. 4 and 5. 4 shows a method of reflecting light by making a grating on the waveguide, and FIG. 5 shows a method of reflecting light by gold coating at the end of the waveguide.
상기와 같은 본 발명은 광섬유를 광도파로에 접속할 때 광섬유를 양쪽에 붙여야 하는 불편한 점을 해결함으로써, 이러한 시간이 많이 소요되는 정렬과정을 줄여주는 효과가 있으므로 생산성이 높아지는 효과가 있다.As described above, the present invention solves the inconvenience of attaching the optical fiber to both sides when the optical fiber is connected to the optical waveguide, thereby reducing the time-consuming alignment process, thereby increasing productivity.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960064310A KR100202356B1 (en) | 1996-12-11 | 1996-12-11 | Optical waveguide element with input and output unit located same side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960064310A KR100202356B1 (en) | 1996-12-11 | 1996-12-11 | Optical waveguide element with input and output unit located same side |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980046037A KR19980046037A (en) | 1998-09-15 |
| KR100202356B1 true KR100202356B1 (en) | 1999-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960064310A KR100202356B1 (en) | 1996-12-11 | 1996-12-11 | Optical waveguide element with input and output unit located same side |
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| Country | Link |
|---|---|
| KR (1) | KR100202356B1 (en) |
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1996
- 1996-12-11 KR KR1019960064310A patent/KR100202356B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR19980046037A (en) | 1998-09-15 |
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