CN104836615A - Optical attenuator - Google Patents
Optical attenuator Download PDFInfo
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- CN104836615A CN104836615A CN201510245332.0A CN201510245332A CN104836615A CN 104836615 A CN104836615 A CN 104836615A CN 201510245332 A CN201510245332 A CN 201510245332A CN 104836615 A CN104836615 A CN 104836615A
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- optical
- module
- attenuation
- microprocessor
- photoelectric conversion
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Abstract
The invention discloses an optical attenuator. The optical attenuator comprises an optical interface module, a photoelectric conversion module, an optical attenuation module, a microprocessor, an optical power detection module and an optical attenuation adjusting module, wherein an optical signal is input into the photoelectric conversion module through the optical interface module; a converted electric signal is output to the microprocessor through the optical attenuation module; meanwhile, the electrical signal converted by the photoelectric conversion module is output to the optical power detection module, and is output to the optical power detection module through the optical attenuation module; the optical power detection module is used for acquiring optical signal power input to the optical attenuation module by the photoelectric conversion module and optical signal power output to the photoelectric conversion module by the optical attenuation module, and transmitting the practical attenuation amounts of the input optical power and the output optical power to the microprocessor; and the microprocessor is used for processing data in order to realize real-time adjustment of the optical attenuation adjusting module, so that the accuracy of the optical attenuation adjusting module is ensured.
Description
Technical field
The present invention relates to communication test technical field, be specifically related to a kind of optical attenuator.
Background technology
Optical attenuator is a kind of very important fiberoptics passive device, seriation optical attenuator is widely used in optical communication field, light signal energy expectedly can be decayed by the requirement of user by it, be usually used in absorbing or reflect away luminous power surplus, the loss of evaluating system and the power of the light signal that regulates optical communication system or test macro to transmit, system is made to reach good working order, also conventional with in the various tests such as the sensitivity detecting optical receiver and dynamic range.Optical attenuator can be divided into fixed attenuator, classification adjustable type attenuator, continuously adjustabe type attenuator, continuously and rank groups mould assembly attenuator etc., its Specifeca tion speeification is attenuation and precision.Optical attenuator in the middle of prior art because detecting light decrement in time, and cannot learn decay accuracy, causes optical attenuator not corrected timely, causes error.
Summary of the invention
Technical problem to be solved by this invention is to provide one can fast detecting fiber failure, by fibre optic test instrument integrated to light source, light power meter and optical time domain reflectometer.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
Optical attenuator, comprise optical interface module, photoelectric conversion module, optical attenuation module, microprocessor, luminous power detection module and optical attenuation adjustment module, light signal is input to photoelectric conversion module by optical interface module, and the signal of telecommunication after conversion exports in microprocessor through optical attenuation module; The signal of telecommunication simultaneously after photoelectric conversion module conversion also exports luminous power detection module to, also luminous power detection module is exported to through optical attenuation module, luminous power detection module obtains optical signal power that photoelectric conversion module inputs to optical attenuation module and the optical signal power that optical attenuation module exports to photoelectric conversion module, and the actual attenuation value of input optical power and Output optical power is transferred to microprocessor; Microprocessor controls the attenuation of optical attenuation module after actual attenuation value and setting attenuation are compared computing through optical attenuation adjustment module.
As preferred technical scheme, also comprise data interface module, this data interface module is connected with the data-interface of microprocessor.
As preferred technical scheme, described data interface module is wireless data interface.
As preferred technical scheme, described microprocessor comprises for receiving and the outgoing management module of temporary input optical power, Output optical power and actual attenuation amount.
Compared with prior art, the present invention adopts luminous power detection module to detect the actual attenuation value of input optical power and Output optical power in real time, and compared by microprocessor and set point, to correct the attenuator values of optical attenuation adjustment module in time, ensure the accuracy of optical attenuation adjustment module; Also be provided with data interface module in addition, transfer of data and the optical attenuator of convenience and external equipment are Data Update.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Embodiment
The present invention is a kind of optical attenuator, as shown in Figure 1, comprises optical interface module, photoelectric conversion module, optical attenuation module, microprocessor, luminous power detection module and optical attenuation adjustment module.Input, the output of described photoelectric conversion module are all connected with optical attenuation module with optical interface module, and the input of electric modular converter is also connected with luminous power detection module; The output of luminous power detection module is connected with microprocessor, and its input is also connected with optical attenuation module; The input of optical attenuation module, output all have photoelectric conversion module to be connected with microprocessor.
Light signal is input to photoelectric conversion module by optical interface module, and the signal of telecommunication after conversion exports in microprocessor through optical attenuation module; The signal of telecommunication simultaneously after photoelectric conversion module conversion also exports luminous power detection module to, also luminous power detection module is exported to through optical attenuation module, luminous power detection module obtains optical signal power that photoelectric conversion module inputs to optical attenuation module and the optical signal power that optical attenuation module exports to photoelectric conversion module, and the actual attenuation value of input optical power and Output optical power is transferred to microprocessor; Microprocessor controls the attenuation of optical attenuation module after actual attenuation value and setting attenuation are compared computing through optical attenuation adjustment module.
The present invention also comprises data interface module, and this data interface module is connected with the data-interface of microprocessor.Data interface module can be limited interface module, as USB interface; Can also be radio interface module, as short-range wireless interface, long range wireless interfaces etc., to facilitate wireless connections, realize the output of data and the renewal of equipment.
In order to manage the data such as input optical power, Output optical power, to complete the function such as inquiry, output, storage of data, described microprocessor comprises for receiving and the outgoing management module of temporary input optical power, Output optical power and actual attenuation amount.
Claims (4)
1. optical attenuator, it is characterized in that: comprise optical interface module, photoelectric conversion module, optical attenuation module, microprocessor, luminous power detection module and optical attenuation adjustment module, light signal is input to photoelectric conversion module by optical interface module, and the signal of telecommunication after conversion exports in microprocessor through optical attenuation module; The signal of telecommunication simultaneously after photoelectric conversion module conversion also exports luminous power detection module to, also luminous power detection module is exported to through optical attenuation module, luminous power detection module obtains optical signal power that photoelectric conversion module inputs to optical attenuation module and the optical signal power that optical attenuation module exports to photoelectric conversion module, and the actual attenuation value of input optical power and Output optical power is transferred to microprocessor; Microprocessor controls the attenuation of optical attenuation module after actual attenuation value and setting attenuation are compared computing through optical attenuation adjustment module.
2. optical attenuator according to claim 1, is characterized in that: also comprise data interface module, this data interface module is connected with the data-interface of microprocessor.
3. optical attenuator according to claim 2, is characterized in that: described data interface module is wireless data interface.
4. optical attenuator according to claim 1, is characterized in that: described microprocessor comprises for receiving and the outgoing management module of temporary input optical power, Output optical power and actual attenuation amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245332.0A CN104836615A (en) | 2015-05-14 | 2015-05-14 | Optical attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245332.0A CN104836615A (en) | 2015-05-14 | 2015-05-14 | Optical attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104836615A true CN104836615A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510245332.0A Pending CN104836615A (en) | 2015-05-14 | 2015-05-14 | Optical attenuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104836615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824077A (en) * | 2016-01-18 | 2016-08-03 | 国家电网公司 | Intelligent optical attenuator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577588A (en) * | 2008-05-08 | 2009-11-11 | 华为技术有限公司 | Hot plugging optical attenuator and realizing method thereof |
| CN201804146U (en) * | 2010-08-23 | 2011-04-20 | 深圳市易飞扬通信技术有限公司 | Adjustable optical attenuator with optical power detection |
| CN201965495U (en) * | 2010-10-09 | 2011-09-07 | 北京信维科技股份有限公司 | Handheld adjustable optical attenuator |
| CN203327006U (en) * | 2013-05-20 | 2013-12-04 | 合肥信维仪器有限公司 | Light attenuator |
| CN204578538U (en) * | 2015-05-14 | 2015-08-19 | 桂林铭瑶电子科技有限公司 | Optical attenuator |
-
2015
- 2015-05-14 CN CN201510245332.0A patent/CN104836615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577588A (en) * | 2008-05-08 | 2009-11-11 | 华为技术有限公司 | Hot plugging optical attenuator and realizing method thereof |
| CN201804146U (en) * | 2010-08-23 | 2011-04-20 | 深圳市易飞扬通信技术有限公司 | Adjustable optical attenuator with optical power detection |
| CN201965495U (en) * | 2010-10-09 | 2011-09-07 | 北京信维科技股份有限公司 | Handheld adjustable optical attenuator |
| CN203327006U (en) * | 2013-05-20 | 2013-12-04 | 合肥信维仪器有限公司 | Light attenuator |
| CN204578538U (en) * | 2015-05-14 | 2015-08-19 | 桂林铭瑶电子科技有限公司 | Optical attenuator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824077A (en) * | 2016-01-18 | 2016-08-03 | 国家电网公司 | Intelligent optical attenuator |
| CN105824077B (en) * | 2016-01-18 | 2019-01-04 | 国网浙江台州市路桥区供电公司 | intelligent optical attenuator |
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Application publication date: 20150812 |