Automatic calibration device for optical power meter

An automatic calibration, optical power meter technology, applied in the field of optical meter calibration, can solve the problems of inaccurate accuracy of external interference factors, and achieve the effects of reducing manual intervention, reducing costs, and improving calibration accuracy

Active Publication Date: 2013-07-17
SHANDONG SENTER ELECTRONICS
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  • Abstract
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Problems solved by technology

[0012] Aiming at the shortcomings and problems existing in the calibration of existing optical power meters, the present invention provides an automatic calibration device for optical power meters, which eliminates the disadvantages of many uncontrollable nodes, many external interference factors, and inaccurate precision in the prior art. The online spectroscopic sampling method realizes real-time calibration of the same light source in the true sense, which greatly improves the accuracy, reduces manual intervention, effectively improves productivity, reduces costs, and meets the increasing production demand, which is of revolutionary significance

Method used

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  • Automatic calibration device for optical power meter
  • Automatic calibration device for optical power meter
  • Automatic calibration device for optical power meter

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Embodiment 1: Taking a single-mode light source as an example, such as figure 2 .

[0043] The optical power meter automatic calibration device is used to calibrate the optical power meter to be calibrated, and is characterized in that it includes an automatic calibration unit and a central control unit, and the automatic calibration unit is connected to the central control unit.

[0044] The automatic calibration unit includes a multi-wavelength stable light source, a wavelength switching control module, an optical attenuator, and a real-time online spectroscopic sampling module;

[0045] The multi-wavelength stable light source, the wavelength switching control module, the optical attenuator, and the real-time online spectroscopic sampling module are optically connected in sequence;

[0046] The real-time online spectroscopic sampling module can be connected to the central control unit;

[0047] The multi-wavelength stable light source, the wavelength switching con...

Embodiment 2

[0054] Embodiment 2: In this embodiment, the structure of the optical power meter automatic calibration device is basically the same as that of Embodiment 1; the difference is that the automatic calibration unit is a multi-mode automatic calibration unit suitable for multi-mode light source output. The structure of the multi-mode automatic calibration unit is basically the same as that of the single-mode automatic calibration unit, except that the relevant interfaces are suitable for multi-mode light source output.

Embodiment 3

[0055] Embodiment 3: see image 3 . In this embodiment, the optical power meter automatic calibration device not only has a single-mode automatic calibration unit suitable for single-mode light source output, but also has a multi-mode automatic calibration unit suitable for multi-mode light source output. The structure of the multi-mode automatic calibration unit is basically the same as that of the single-mode automatic calibration unit, except that it is suitable for multi-mode light source output, and the corresponding components are adjusted accordingly.

[0056] In order to improve the expansion capability of the equipment, in the above-mentioned embodiments, the wavelength switching control module also adds an external light source access port, which can input an external light source and enhance the light source input capability; Figure 4 .

[0057] In the above embodiments, in order to achieve better operation convenience, the present invention also provides an input ...

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Abstract

The invention discloses an automatic calibration device for an optical power meter to be calibrated. The automatic calibration device comprises an automatic calibration unit and a central control unit. A multi-wavelength stable light source, a wavelength switching control module, an optical attenuator and a real-time online light splitting and sampling module are sequentially connected in the automatic calibration unit. The real-time online light splitting and sampling module comprises an optical splitter and a built-in optical power meter, one output of the optical splitter is connected with an output optical calibration interface which is connected with an external instrument to be calibrated, the other output of the optical splitter is connected with the built-in optical power meter, the built-in optical power meter is connected with the central control unit and capable of measuring the output optical power online in real time, and the central control unit is equipped with a communication module. According to the automatic calibration device, real-time calibration of the same light source is achieved in a real sense through the real-time online light splitting and sampling mode, external influencing factors are reduced, the optical power of the calibration interface is stable, the calibration precision is greatly improved, and the technologically revolutionary significance is provided.

Description

technical field [0001] The invention belongs to the field of optical meter calibration, and in particular relates to an automatic calibration device for an optical power meter. Background technique [0002] Optical power meter is an indispensable basic test instrument in the field of optical fiber communication test. The optical power meter calibration operation in the prior art realizes the calibration by comparing with a standard optical power meter. [0003] like figure 1 , the standard light source is first connected to the standard optical power meter A through the optical attenuator; at the test wavelength, adjust the optical attenuator so that the output fiber optical power reaches the calibrated power value (such as -10dBm) and record the test of the standard optical power meter at this time value; [0004] Then connect the standard light source to the device B to be calibrated through the optical attenuator; [0005] The computer is connected to the device to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/00
Inventor 张海峰
Owner SHANDONG SENTER ELECTRONICS
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