KR100344710B1 - Optical return loss measurment apparatus - Google Patents
Optical return loss measurment apparatus Download PDFInfo
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- KR100344710B1 KR100344710B1 KR1020000023167A KR20000023167A KR100344710B1 KR 100344710 B1 KR100344710 B1 KR 100344710B1 KR 1020000023167 A KR1020000023167 A KR 1020000023167A KR 20000023167 A KR20000023167 A KR 20000023167A KR 100344710 B1 KR100344710 B1 KR 100344710B1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
- G01J1/28—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source
- G01J1/30—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors
- G01J1/32—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors adapted for automatic variation of the measured or reference value
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- 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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/38—Circulators
- H01P1/383—Junction circulators, e.g. Y-circulators
- H01P1/387—Strip line circulators
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Abstract
발광 소자와 수광 소자를 이용하여 반사광의 손실을 정확하게 측정하기 위한 반사광 손실 측정 장치가 개시되어 있다. 본 발명은, 외부로부터 공급된 전기신호를 안정화하는 안정화부; 상기 안정화부의 출력측에 접속되고, 이 안정화된 전기신호를 광신호로 변환시키는 발광소자; 상기 발광 소자의 광신호를 소정 방향으로 진행시키는 제1 아이솔레이터; 상기 제1 아이솔레이터를 통과한 광신호를 결합 및/또는 분기하는 광 결합 분기부; 상기 광 결합 분기부로부터 결합된 광과 디바이스를 통해 반사된 광신호를 접속하는 광 접속부; 상기 광 결합 분기부의 출력측에 접속되어 광 분기된 광신호를 통과시키는 제2 아이솔레이터와, 제2 아이솔레이터의 광신호를 전기신호로 변환하여 디스플레이하는 수광 소자로 이루어져, 디바이스를 통해 반사된 광신호와 입력되는 광신호의 차를 측정하여 반사광의 손실을 정확하게 측정할 수 있다.Disclosed is a reflected light loss measuring apparatus for accurately measuring a loss of reflected light using a light emitting element and a light receiving element. The present invention, stabilization unit for stabilizing the electrical signal supplied from the outside; A light emitting element connected to the output side of the stabilization unit and converting the stabilized electric signal into an optical signal; A first isolator for advancing the optical signal of the light emitting element in a predetermined direction; An optical coupling branch unit coupling and / or branching the optical signal passing through the first isolator; An optical connector for connecting the light coupled from the optical coupling branch to the optical signal reflected through the device; A second isolator connected to an output side of the optical coupling branch and configured to pass an optical signal branched through the light; and a light receiving element for converting and displaying the optical signal of the second isolator into an electrical signal, the optical signal reflected through the device and input The loss of reflected light can be accurately measured by measuring the difference between the optical signals.
Description
본 발명은 반사광 손실 측정 장치에 관한 것으로, 보다 상세하게는 발광 소자 및 수광 소자를 이용하여 디바이스에서 반사된 광신호를 정확하게 측정하여 광선로에서 발생되는 손실을 정확하게 측정할 수 있는 장치에 관한 것이다.The present invention relates to an apparatus for measuring the reflection light loss, and more particularly, to an apparatus capable of accurately measuring the loss generated in the optical path by accurately measuring the optical signal reflected from the device by using the light emitting element and the light receiving element.
일반적인 파장 분할 다중 방식을 이용한 이동 통신망의 광 통신망에서는 디바이스내에서 발생되는 삽입 손실과 디바이스에서 되돌아오는 반사광에서 손실되는 반사광 손실이 발생되고, 상기 삽입 손실은 도 1에 도시된 바와 같이, 소정의 디바이스로 공급되는 입력 광신호와 소정의 다바이스에서 출력되는 출력 광신호의 차를 비교하여 산출된다.In an optical communication network of a mobile communication network using a wavelength division multiplexing scheme, an insertion loss generated in a device and a reflected light loss lost in reflected light returned from the device are generated, and the insertion loss is a predetermined device as shown in FIG. 1. The difference between the input optical signal supplied to the output optical signal and the output optical signal output from the predetermined device is calculated.
상기와 같은 삽입 손실량은 용이하게 산출할 수 있으나, 디바이스에서 되돌아 오는 반사광 손실은 수학적 연산을 통해 측정되었으며, 그로 인한 반사광 손실을 측정하는 시간이 오래 걸리며, 그 장치가 복잡하기 때문에 휴대가 불가능한 문제점이 있었다.Although the insertion loss amount can be easily calculated, the reflected light loss returned from the device was measured by mathematical calculations, and thus, the reflected light loss takes a long time, and the device is not portable because of its complexity. there was.
이에, 본 발명은 상기한 문제점을 해결하기 위하여 창출된 것으로서, 본 발명의 목적은 발광 소자 및 수광 소자를 이용하여 반사광의 손실을 측정함으로서, 경박 단소화 및 휴대가 가능한 반사광 손실 측정 장치를 제공하는 것이다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to measure the loss of reflected light by using a light emitting element and a light receiving element, thereby providing a light loss measuring apparatus that is light and thin and portable. will be.
상기와 같은 목적을 달성하기 위한 본 발명에 따른 반사광 손실 측정 장치는,Reflected light loss measuring apparatus according to the present invention for achieving the above object,
외부로부터 공급된 전기신호를 안정화하는 안정화부;Stabilization unit for stabilizing the electrical signal supplied from the outside;
상기 안정화부의 출력측에 접속되고, 상기 안정화된 전기신호를 광신호로 변환시키는 발광소자;A light emitting element connected to an output side of the stabilization unit and converting the stabilized electric signal into an optical signal;
상기 발광 소자의 광신호를 소정 방향으로 진행시키는 제1 아이솔레이터;A first isolator for advancing the optical signal of the light emitting element in a predetermined direction;
상기 제1 아이솔레이터를 통과한 광신호를 결합 및/또는 분기하는 광 결합분기부;An optical coupling branch unit coupling and / or branching the optical signal passing through the first isolator;
상기 광 결합 분기부로부터 결합된 광과 디바이스를 통해 반사된 광신호를 접속하는 광 접속부;An optical connector for connecting the light coupled from the optical coupling branch to the optical signal reflected through the device;
상기 광 결합 분기부의 출력측에 접속되어 광 분기된 광신호를 통과시키는 제2 아이솔레이터; 및A second isolator connected to an output side of the optical coupling branch to pass an optical branched light signal; And
상기 제2 아이솔레이터의 광신호를 전기신호로 변환하여 디스플레이하는 수광 소자로 구성된다.And a light receiving element for converting and displaying an optical signal of the second isolator into an electrical signal.
본 발명에 의하면, 입력되는 전기신호를 발광소자에 의해 광신호로 변환하고, 이 변환된 광신호를 디바이스에 의해 반사시키고, 이 반사광을 수광 소자를 이용하여 전기신호로 변환하며, 상기 입력되는 전기신호와 반사된 전기신호와의 차를 산출하여 디스플레이함으로서, 경박 단소화 및 휴대가 용이하다.According to the present invention, an electrical signal input is converted into an optical signal by a light emitting element, the converted optical signal is reflected by a device, and the reflected light is converted into an electrical signal using a light receiving element, and the input electrical By calculating and displaying the difference between the signal and the reflected electrical signal, it is easy and light in weight and portable.
도 1은 일반적인 디바이스 손실 측정 장치의 구성을 보인 블럭도이다.1 is a block diagram showing the configuration of a general device loss measuring apparatus.
도 2는 본 발명이 적용되는 디바이스 반사광 측정 장치의 구성을 보인 블럭도이다.2 is a block diagram showing a configuration of a device reflected light measuring apparatus to which the present invention is applied.
도 3은 도 2의 반사광 손실 측정 장치의 구성을 보인 도이다.FIG. 3 is a diagram illustrating a configuration of the reflected light loss measuring apparatus of FIG. 2.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
100 : 반사광 손실 측정부 111 : 안정화부100: reflected light loss measuring unit 111: stabilization unit
112 : 발광 소자 113 : 제1 아이솔레이터112 light emitting element 113 first isolator
114 : 광 결합 분기부 115 : 광 접속부114: optical coupling branch 115: optical connection
117 : 제2 아이솔레이터 118 : 수광 소자117: second isolator 118: light receiving element
200 : 디바이스 300 : 디스플레이부200: device 300: display unit
이하, 본 발명의 실시 예를 통해 본 발명을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the following examples.
도 2는 본 발명이 적용되는 반사광 손실 측정 장치의 구성을 보인 블럭도로서, 반사광 손실 측정부(100), 디바이스(200), 및 디스플레이부(300)로 구비된다. 즉, 본 발명에 따른 반사광 손실 측정장치에 따라 반사광 손실 측정부(100)는 외부로부터 공급되는 전기신호를 광신호로 변환한 후 디바이스(200)에 반사시키고, 상기 디바이스(200)에서 되돌아온 반사광을 전기신호로 변환한 후 디바이스(200)로 공급된 입력광 신호와 디바이스(200)에서 되돌아온 반사광 신호의 대한 손실을 산출하여 디스플레이부(300)에 공급하도록 구비된다.2 is a block diagram showing the configuration of the reflected light loss measuring apparatus to which the present invention is applied, and is provided with the reflected light loss measuring unit 100, the device 200, and the display unit 300. That is, according to the reflected light loss measuring apparatus according to the present invention, the reflected light loss measuring unit 100 converts an electrical signal supplied from the outside into an optical signal and then reflects the reflected light back from the device 200 to the device 200. After converting into an electrical signal, a loss of the input light signal supplied to the device 200 and the reflected light signal returned from the device 200 is calculated to be supplied to the display unit 300.
도 3은 도 2의 반사광 손실 측정부(100)의 구성을 상세하게 보인 도로서, 안정화부(111), 발광소자(112), 제1 아이솔레이터(113), 광 결합 분기부(114), 광 접속부(115), 제2 아이솔레이터(117), 및 수광 소자(118)로 구비된다.3 is a view illustrating in detail the configuration of the reflected light loss measuring unit 100 of FIG. 2, wherein the stabilizing unit 111, the light emitting device 112, the first isolator 113, the light coupling branch 114, and the light are illustrated in FIG. The connection part 115, the second isolator 117, and the light receiving element 118 are provided.
외부로부터 공급된 전기신호를 안정화하는 안정화부(111)의 출력측에는 상기 안정화부(111)의 안정화된 전기신호를 광신호로 변환하여 입력 광신호를 출력하는 발광소자(112)가 접속된다.The light emitting element 112 which converts the stabilized electrical signal of the stabilizer 111 into an optical signal and outputs an input optical signal is connected to an output side of the stabilizer 111 that stabilizes an electrical signal supplied from the outside.
그리고, 상기 발광 소자(112)의 출력측에는 입력 광신호를 소정 방향으로 진행시키는 제1 아이솔레이터(113)가 연결되고, 상기 제1 아이솔레이터(113)의 출력측에는 이 제1 아이솔레이터(113)를 통과한 입력 광신호를 결합 및/또는 분기하는 광 결합 분기부(114)가 접속된다.A first isolator 113 is connected to an output side of the light emitting element 112 to advance an input optical signal in a predetermined direction, and the first isolator 113 is passed to an output side of the first isolator 113. An optical coupling branch 114 for coupling and / or diverting the input optical signal is connected.
그리고, 상기 광 결합 분기부(14)의 출력측에는 광 결합 분기부(14)에서 결합된 입력 광신호와 디바이스(200)를 통해 반사된 반사 광신호를 접속하는 광 접속부(115)가 접속된다.An optical connection unit 115 is connected to an output side of the optical coupling branch 14 to connect the input optical signal coupled by the optical coupling branch 14 and the reflected optical signal reflected through the device 200.
한편, 상기 광 결합 분기부(114)의 출력측에는 광 결합 분기부(114)에 분기된 광신호를 통과시키는 제2 아이솔레이터(117)가 접속되고, 상기 제2 아이솔레이터(117)의 출력측에는 이 제2 아이솔레이터(117)를 통과한 광신호를 전기적인 신호로 변환하여 반사 전기신호를 발생하고, 이 반사 전기신호를 디스플레이부(300)로 공급하는 수광 소자(118)가 접속된다.On the other hand, a second isolator 117 is connected to the output side of the optical coupling branch 114 for passing an optical signal branched to the optical coupling branch 114, and is provided on the output side of the second isolator 117. A light receiving element 118 that converts an optical signal passing through the two isolators 117 into an electrical signal to generate a reflected electrical signal, and supplies the reflected electrical signal to the display unit 300 is connected.
이와같이 구성된 본 발명에 따른 반사광 손실 측정장치에 있어서, 우선 외부로부터 공급되는 전기신호는 반사광 손실 측정부(100)의 안정화부(111)에 공급되고, 상기 안정화부(111)는 이 전기신호를 균일한 크기의 전기신호로 안정화한다.In the reflected light loss measuring apparatus according to the present invention configured as described above, first, an electric signal supplied from the outside is supplied to the stabilizing unit 111 of the reflected light loss measuring unit 100, and the stabilizing unit 111 uniforms the electric signal. Stabilize with an electrical signal of one size.
상기 안정화부(111)의 출력신호는 상기 발광소자(112)에 공급되고, 발광 소자(112)는 안정화부(111)의 출력신호를 광신호로 변환하여 입력 광신호를 출력한다.The output signal of the stabilization unit 111 is supplied to the light emitting element 112, and the light emitting element 112 converts the output signal of the stabilization unit 111 into an optical signal and outputs an input optical signal.
그리고, 상기 발광 소자(112)의 입력 광신호는 제1 아이솔레이터(113)를 통해 광 결합 분기부(114)로 공급되고, 상기 광 결합 분기부(114)는 이 제1 아이솔레이터(113)를 통과한 입력 광신호를 결합한다. 여기서, 입력 광신호는 제1 아이솔레이터(113)의 통과시 소정량의 손실이 발생된다.The input optical signal of the light emitting element 112 is supplied to the optical coupling branch 114 through the first isolator 113, and the optical coupling branch 114 passes through the first isolator 113. Combine one input optical signal. In this case, a predetermined amount of loss occurs when the input optical signal passes through the first isolator 113.
상기 광 결합 분기부(114)에서 결합된 입력 광신호는 광 접속부(115)를 통해 다바이스(200)에 공급되고, 디바이스(200)에 의해 반사되어 반사광을 출력한다. 그리고, 디바이스(200)를 통해 반사된 반사 광신호는 광 접속부(115)를 통해 광 결합 분기부(114)에 공급된다.The input optical signal coupled by the optical coupling branch 114 is supplied to the device 200 through the optical connection unit 115 and reflected by the device 200 to output the reflected light. The reflected optical signal reflected through the device 200 is supplied to the optical coupling branch 114 through the optical connection 115.
한편, 상기 반사 광신호를 받은 광 결합 분기부(114)는 이 반사광을 분기하여 제1 아이솔레이터(113)및 제2 아이솔레이터(117)로 공급하고, 제1 아이솔레이터(113)로 공급되는 반사광신호의 일부는 발솽 소자(112)에 공급되는 것이 차단된다.On the other hand, the optical coupling branch 114 receives the reflected light signal and splits the reflected light to the first isolator 113 and the second isolator 117, the light isolator of the reflected light signal supplied to the first isolator 113 Some are blocked from being supplied to the light emitting element 112.
상기 제2 아이솔레이터(117)에 공급된 반사광신호의 일부는 수광소자(118)에 공급되고, 이 분기된 반사광신호의 일부를 받은 수광 소자(118)는 이 반사광을 전기적인 신호로 변환하여 반사 전기신호를 출력한다. 이 반사 전기신호는 디스플레이부(300)에 공급되고, 이 반사 전기신호를 받은 디스플레이부(300)는 입력된 전기신호와 반사 전기신호를 화면에 디스플레이시키고, 반사광 손실 측정부에서 발생되는 소정의 손실에 대한 반사광의 손실을 디스플레이한다.A part of the reflected light signal supplied to the second isolator 117 is supplied to the light receiving element 118, and the light receiving element 118, which receives a part of the branched reflected light signal, converts the reflected light into an electric signal to reflect electric power. Output the signal. The reflected electrical signal is supplied to the display unit 300, and the display unit 300 receiving the reflected electrical signal displays the input electrical signal and the reflected electrical signal on the screen, and the predetermined loss generated by the reflected light loss measuring unit. Display the loss of reflected light for.
이상, 본 발명에 의하면, 발광 소자 및 수광 소자를 이용하여 디바이스의 반사광 손실을 측정함으로서, 반사광 손실을 빠르고 용이하게 측정할 수 있으며, 또한, 측정 장치의 경박 단소화가 가능하고, 그에 따라 휴대도 가능한 효과를 얻을 수 있다.As described above, according to the present invention, the reflected light loss of the device is measured by using the light emitting element and the light receiving element, so that the reflected light loss can be measured quickly and easily, and the light and small size of the measuring device can be reduced and thus portable. The effect can be obtained.
또한, 본 발명을 상기한 실시 예를 들어 구체적으로 설명하였지만, 본 발명은 이에 제한되는 것이 아니고, 당업자의 통상의 지식의 범위 내에서 그 변형이나 개량이 가능하다.In addition, although the present invention has been described in detail with reference to the embodiments described above, the present invention is not limited thereto, and modifications and improvements are possible within the scope of ordinary knowledge of those skilled in the art.
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