CN201327537Y - Hand-held variable optical attenuator - Google Patents
Hand-held variable optical attenuator Download PDFInfo
- Publication number
- CN201327537Y CN201327537Y CNU2008202030389U CN200820203038U CN201327537Y CN 201327537 Y CN201327537 Y CN 201327537Y CN U2008202030389 U CNU2008202030389 U CN U2008202030389U CN 200820203038 U CN200820203038 U CN 200820203038U CN 201327537 Y CN201327537 Y CN 201327537Y
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- optical
- optical attenuator
- attenuator
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Abstract
The utility model relates to a hand-held variable optical attenuator which belongs to the field of optical communication. The hand-held variable optical attenuator comprises an input optic fiber adapter, an output optic fiber adapter, an optic fiber tray, optical attenuators and a shell; wherein the first and the second optical attenuators are mounted on a circuit board; the output end of the first optical attenuator is connected with the input end of the second optical attenuator through an optic fiber; the input end of the first optical attenuator is connected with the input optic fiber adapter through the optic fiber and a jumper; and the output end of the second optical attenuator is connected with the output optic fiber adapter through the optic fiber and the jumper. A control circuit produces regulation voltage to control the voltage value of the attenuators, the corresponding attenuation is displayed by a display function, different attenuations are set by input, optical signals are attenuated by the attenuators to produce corresponding optical attenuation signals, and thereby stable and needed optical signals can be obtained. The novel variable optical attenuator has the advantages of simple structure design and easy operation.
Description
Technical field
The hand-held adjustable optical attenuator of the utility model belongs to optical communication field, mainly applies to the light path power control of open air, scientific research and production.
Background technology
Along with Fibre Optical Communication Technology constantly develops towards higher rate and jumbo communication system, detection demand in the fiber-optic communication project also will constantly develop, it is control that hand-held electricity is transferred variable optical attenuator, detect the common equipment in optical communication and the network service, lasing light emitter produces laser at transmitting terminal, arrive user side by Optical Fiber Transmission, hand-held adjustable optical attenuator can detect the damping capacity of light, thereby make the user obtain stable and reliable signal, need simple to operate, hand-held adjustable optical attenuator easy to carry, that continuous operating time is long.
Summary of the invention
It is a kind of simple to operate, easy to carry that the purpose of this utility model is to provide, light transmission good stability, the hand-held adjustable optical attenuator that attenuation accuracy is high.
The purpose of this utility model reaches by following measure, hand-held adjustable optical attenuator is by the input optical fibre adapter, the output optical fibre adapter, the optical fiber pallet, optical attenuator, shell is formed, shell internal fixation mounting circuit boards, input optical fibre adapter and output optical fibre adapter are installed on the shell respectively, the output optical fibre adapter is used for fixing the wire jumper head, the optical fiber pallet is fixed on the circuit board, optical attenuator is installed on the circuit board, lasing light emitter is by input optical fibre adapter input optical signal, optical fiber by the optical fiber pallet with optical signal transmission to first optical attenuator, carry out attenuation of the first kind, light signal by the optical fiber pallet with optical signal transmission to second optical attenuator, carry out the attenuation of the second kind, light signal after decay finishes transmits out by the output optical fibre adapter end, first optical attenuator and second optical attenuator are installed on circuit board, the first optical attenuator output terminal connects the second optical attenuator input end by optical fiber and wire jumper, the first optical attenuator input end connects the input optical fibre adapter by optical fiber, and the second optical attenuator output terminal connects the output optical fibre adapter by optical fiber and wire jumper.
By electric regulation voltage, produce light decrement, by the output port output light source of attenuator.Control circuit produces the magnitude of voltage of regulation voltage control optical attenuator, show corresponding damping capacity by Presentation Function, input is provided with different damping capacitys, and light signal produces corresponding signal by the damping capacity of attenuator, thereby obtains stable and light signals needs.
The utility model is provided with control circuit on circuit board, control circuit is by the MCU control circuit, the AD conversion circuit, voltage amplifier circuit, KEY keyboard input control circuit, the LCD display output circuit is formed, keyboard shows by LCD after being provided with and connecting the processing of MCU control circuit, gives the AD conversion circuit by I/O mouth output digital voltage signal, the AD conversion circuit changes into analog voltage signal with digital voltage signal, and voltage amplifier circuit is converted into high voltage with low-voltage and exports to optical attenuator VOA.
Structural design of the present utility model is simple, and is simple to operate, is a kind of novel adjustable optical attenuator.
Description of drawings:
Accompanying drawing 2 is circuit working principal diagram intentions of the present utility model.
Accompanying drawing 3 is structural representations of the present utility model.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing
As shown in Figure 1, the utility model input optical fibre adapter INPUT holds input optical signal, by the optical fiber pallet optical signal transmission is arrived optical attenuator VOA-1 again, and VOA-1 carries out attenuation of the first kind, light signal output; Be transferred to optical attenuator VOA-2 and carry out the attenuation of the second kind, after decay finished, light signal transmitted out to output optical fibre adapter OUTPUT end by the optical fiber pallet,
As shown in Figure 2, the utility model control circuit is by the MCU control circuit, the AD conversion circuit, and voltage amplifier circuit, KEY keyboard input control circuit, the LCD display output circuit is formed, and keyboard is provided with the pad value that needs; MCU shows corresponding pad value after handling pad value by LCD, the utilization internal algorithm calculates the pairing magnitude of voltage of pad value, and gives AD by I/O mouth output digital voltage signal; The AD conversion circuit changes into analog voltage signal with digital voltage signal; Voltage amplifier circuit is converted into high voltage with low-voltage and exports to optical attenuator VOA; Optical attenuator VOA obtains to produce corresponding damping capacity to light path generation decay behind the voltage.
As shown in Figure 3, the utility model input optical fibre adapter 1, output optical fibre adapter 6, optical fiber pallet 2, optical attenuator 3, optical attenuator 5, circuit board 4, shell 7 is formed, shell internal fixation mounting circuit boards, input optical fibre adapter and output optical fibre adapter are installed in respectively on the shell, are used for fixing the wire jumper head, the optical fiber pallet is fixed on the circuit board, optical attenuator is installed on the circuit board, and installation first optical attenuator 3 and second optical attenuator, 5, the first optical attenuators 3 connect second optical attenuator 5 by optical fiber on circuit board, first optical attenuator is connected to input optical fibre adapter 1, the second optical attenuator 5 by optical fiber and wire jumper and is connected to output optical fibre adapter 6 by optical fiber and wire jumper.Lasing light emitter is by input optical fibre adapter input optical signal, optical fiber by the optical fiber pallet with optical signal transmission to first optical attenuator, carry out attenuation of the first kind, light signal by the optical fiber pallet with optical signal transmission to second optical attenuator, carry out the attenuation of the second kind, the light signal after decay finishes transmits out by the output optical fibre adapter end.
Claims (2)
1. hand-held adjustable optical attenuator, by the input optical fibre adapter, the output optical fibre adapter, the optical fiber pallet, optical attenuator, shell is formed, shell internal fixation mounting circuit boards, input optical fibre adapter and output optical fibre adapter are installed on the shell respectively, the optical fiber pallet is fixed on the circuit board, optical attenuator is installed on the circuit board, it is characterized in that on circuit board, installing first optical attenuator and second optical attenuator, the first optical attenuator output terminal connects the second optical attenuator input end by optical fiber, and the first optical attenuator input end is connected to the input optical fibre adapter by optical fiber and wire jumper, and the second optical attenuator output terminal is connected to the output optical fibre adapter by optical fiber and wire jumper.
2. hand-held adjustable optical attenuator according to claim 1, it is characterized in that on circuit board, being provided with control circuit, control circuit is by the MCU control circuit, the AD conversion circuit, voltage amplifier circuit, KEY keyboard input control circuit, the LCD display output circuit is formed, after keyboard is provided with and connects the processing of MCU control circuit, show by LCD, give the AD conversion circuit by I/O mouth output digital voltage signal, the AD conversion circuit changes into analog voltage signal with digital voltage signal, and voltage amplifier circuit is converted into high voltage with low-voltage and exports to optical attenuator VOA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202030389U CN201327537Y (en) | 2008-11-03 | 2008-11-03 | Hand-held variable optical attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202030389U CN201327537Y (en) | 2008-11-03 | 2008-11-03 | Hand-held variable optical attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327537Y true CN201327537Y (en) | 2009-10-14 |
Family
ID=41179506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202030389U Expired - Fee Related CN201327537Y (en) | 2008-11-03 | 2008-11-03 | Hand-held variable optical attenuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327537Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744143A (en) * | 2013-12-25 | 2014-04-23 | 桂林市光隆光电科技有限公司 | Handheld optical attenuator |
| CN107946899A (en) * | 2017-12-22 | 2018-04-20 | 成都心无界光电技术有限公司 | A kind of laser source system |
-
2008
- 2008-11-03 CN CNU2008202030389U patent/CN201327537Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744143A (en) * | 2013-12-25 | 2014-04-23 | 桂林市光隆光电科技有限公司 | Handheld optical attenuator |
| CN103744143B (en) * | 2013-12-25 | 2016-01-06 | 桂林市光隆光电科技有限公司 | Handheld optical attenuator |
| CN107946899A (en) * | 2017-12-22 | 2018-04-20 | 成都心无界光电技术有限公司 | A kind of laser source system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20141103 |
|
| EXPY | Termination of patent right or utility model |